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 Solar Panel for House, Have you install?

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TSdarren486
post Nov 9 2020, 01:04 PM, updated 4y ago

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Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
ironite
post Nov 9 2020, 01:07 PM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
Got. Solar water heater. Can mandi air panas.
acbc
post Nov 9 2020, 01:07 PM

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I read somewhere the ROI is between 9-10 years.
TSdarren486
post Nov 9 2020, 01:08 PM

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QUOTE(ironite @ Nov 9 2020, 01:07 PM)
Got. Solar water heater. Can mandi air panas.
*
i'm thinking on the solar panel to reduce your electricity bill, coz my house usage abit higher than i would like

TSdarren486
post Nov 9 2020, 01:09 PM

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QUOTE(acbc @ Nov 9 2020, 01:07 PM)
I read somewhere the ROI is between 9-10 years.
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i'm worry about maintenance also, later after 10years rosak, gham gham cover the ROI only, like waste of effort
MrBaba
post Nov 9 2020, 01:10 PM

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Unless yr house got a power wall to store extra electric, solar panel is a scam. In theory it will take 10 yr to pay for it self, but ask yr self this question when yr house hold use more electric day time or night time? Night time solar panel working? Morning extra electric go to where?
yushin
post Nov 9 2020, 01:10 PM

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How much higher is your tnb bill? solar panel only worth it if you monthly usage is over 600kwh
empire
post Nov 9 2020, 01:12 PM

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SOLAR PANELS deteriorate after a few years. Dont expect the solar panels to be as efficient as it is like on the first day after 4-5 years.
The Battery also deteriorates after a few years...and they wont be able to hold the charge long.

It is an expensive route to take. Dont bother.
lagista
post Nov 9 2020, 01:12 PM

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QUOTE(MrBaba @ Nov 9 2020, 01:10 PM)
Unless yr house got a power wall to store extra electric,  solar panel is a scam. In theory it will take 10 yr to pay for it self,  but ask yr self this question when yr house hold use more electric day time or night time?  Night time solar panel working?  Morning extra electric go to where?
*
Problem is nobody invent lunar panel yet... otherwise it can cut to 5 yrs ROI only...
MrBaba
post Nov 9 2020, 01:15 PM

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QUOTE(lagista @ Nov 9 2020, 01:12 PM)
Problem is nobody invent lunar panel yet... otherwise it can cut to 5 yrs ROI only...
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In aus ppl just use power wall to store electric during day time then use it at night time cos they have 2 rate on electric .
Al3x0174
post Nov 9 2020, 01:16 PM

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It’s only useful to power small stuffs. Battery is the worst part of it. Low efficiency in generating electricity. Hard to store.
MrBaba
post Nov 9 2020, 01:16 PM

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QUOTE(empire @ Nov 9 2020, 01:12 PM)
SOLAR PANELS deteriorate after a few years. Dont expect the solar panels to be as efficient as it is like on the first day after 4-5 years.
The Battery also deteriorates after a few years...and they wont be able to hold the charge long.

It is an expensive route to take.  Dont bother.
*
What battery?
atong
post Nov 9 2020, 01:16 PM

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Installed solar panel for my house.

For warranty:
Panel - 20 years
Inverter - 5 + 2 years
Workmanship - 3 years

Cost me around RM 24K for the whole package. Using Maybank 0 interest 24 month installment.
So far so good. Can even monitor power panel from apps.
Gyazo
post Nov 9 2020, 01:16 PM

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Nuke energy je
pretty23
post Nov 9 2020, 01:17 PM

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how the radiator effect ?
RicoT
post Nov 9 2020, 01:18 PM

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QUOTE(acbc @ Nov 9 2020, 01:07 PM)
I read somewhere the ROI is between 9-10 years.
*
If power consumption is low and the solar is able to offset the power bill entirely the solar power is not fully utilised and selling back electricity to TNB is usually at a lower rate, it will have longer ROI.

If power consumption is high, then the solar power can be fully utilise, provided the panels are facing the correct direction and scrub wash every 2-3 months for maximum generation efficiency. Without batteries, only power consumption during the day can be offset while residential power consumption are usually higher at night with the A/C switched on. Having batteries will help offset daytime generation to night time consumption, with added cost of course but it will allows better utilisation of power.
SUSNew Klang
post Nov 9 2020, 01:18 PM

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QUOTE(empire @ Nov 9 2020, 01:12 PM)
SOLAR PANELS deteriorate after a few years. Dont expect the solar panels to be as efficient as it is like on the first day after 4-5 years.
The Battery also deteriorates after a few years...and they wont be able to hold the charge long.

It is an expensive route to take.  Dont bother.
*
Which part deteriorate?

Data sheet stated long life as long as the glass isnt broken.


sairay
post Nov 9 2020, 01:19 PM

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QUOTE(atong @ Nov 9 2020, 01:16 PM)
Installed solar panel for my house.

For warranty:
Panel - 20 years
Inverter - 5 + 2 years
Workmanship - 3 years

Cost me around RM 24K for the whole package. Using Maybank 0 interest 24 month installment.
So far so good. Can even monitor power panel from apps.
*
This sounds cheap. May I know what is the capacity and rating?
sairay
post Nov 9 2020, 01:21 PM

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I was told 8kw around 42k cost and takes roungly 7yrs for ROI
narf03
post Nov 9 2020, 01:24 PM

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did consider, but risk is too high, not worth the effort.

if everything according to plan, it takes 10 years to ROI. and there is no perfect guarantee it will last 10 years, and how much longer it can last after 10 years. cost of the solar panel will keep decreasing and efficiency of panels will keep increasing, in short, the later you install the faster you cover your investment. like maybe 5 years from now, it only take you 2 years to recover your investment(just blindly guess).

major part of the investment is the storage, aka batteries, if you able to strike a deal with tnb, allowing you to connect your solar into tnb(reverse the meter when your solar generate more than your usage) and without batteries, it can be alot cheaper, lesser problems, and more worth it.

technically still not a good investment for money, unless you have so much money and no where else to spend, better dont do it, price of electricity in malaysia isnt that high yet until you need to do that, if 1 day our electricity cost double, then your ROI will shorten, then you can reconsider.
TSdarren486
post Nov 9 2020, 01:24 PM

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QUOTE(MrBaba @ Nov 9 2020, 01:10 PM)
Unless yr house got a power wall to store extra electric,  solar panel is a scam. In theory it will take 10 yr to pay for it self,  but ask yr self this question when yr house hold use more electric day time or night time?  Night time solar panel working?  Morning extra electric go to where?
*
i'm actually using more in the day, coz me and wife working from home, but i heard that we can even sell it back if underutilize, of can sort of get a discount, i don't think it have any battery pack kuah, coz i remember they say can sell extra to TNB if underutilised, so no need headache
TSdarren486
post Nov 9 2020, 01:25 PM

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QUOTE(yushin @ Nov 9 2020, 01:10 PM)
How much higher is your tnb bill? solar panel only worth it if you monthly usage is over 600kwh
*
now trying to cut down also 1 month around 450, if not gonna be slightly outside of 500
Lada Putih
post Nov 9 2020, 01:26 PM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
20k give and take
22k or 48k also got
atong
post Nov 9 2020, 01:26 PM

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A lot of people talking about something they don't even know.

All of the excess solar power during daytime will go the TNB grid. The inverter only works during daytime. You will use the power from the grid at night. This excess power can be rolled over for the next 2 years.

It is definitely good for long term. Bulan bulan bayar tak sampai RM 20.

Tak tau tanya. Kalau bodo sila simpan sendiri.
TSdarren486
post Nov 9 2020, 01:27 PM

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QUOTE(atong @ Nov 9 2020, 01:16 PM)
Installed solar panel for my house.

For warranty:
Panel - 20 years
Inverter - 5 + 2 years
Workmanship - 3 years

Cost me around RM 24K for the whole package. Using Maybank 0 interest 24 month installment.
So far so good. Can even monitor power panel from apps.
*
macam not too bad, whats the company name?
kingdomdemon
post Nov 9 2020, 01:27 PM

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QUOTE(New Klang @ Nov 9 2020, 01:18 PM)
Which part deteriorate?

Data sheet stated long life as long as the glass isnt broken.
*
It is like the electricity generated today will not be the same as the amount of electricity generated a year later. The longer it goes, the lesser electricity it generate.
atong
post Nov 9 2020, 01:28 PM

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QUOTE(darren486 @ Nov 9 2020, 01:24 PM)
i'm actually using more in the day, coz me and wife working from home, but i heard that we can even sell it back if underutilize, of can sort of get a discount, i don't think it have any battery pack kuah, coz i remember they say can sell extra to TNB if underutilised, so no need headache
*
They stopped that a while ago. You can refer my previous post on how they work. Better install it lah.
TSdarren486
post Nov 9 2020, 01:29 PM

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QUOTE(narf03 @ Nov 9 2020, 01:24 PM)
did consider, but risk is too high, not worth the effort.

if everything according to plan, it takes 10 years to ROI. and there is no perfect guarantee it will last 10 years, and how much longer it can last after 10 years. cost of the solar panel will keep decreasing and efficiency of panels will keep increasing, in short, the later you install the faster you cover your investment. like maybe 5 years from now, it only take you 2 years to recover your investment(just blindly guess).

major part of the investment is the storage, aka batteries, if you able to strike a deal with tnb, allowing you to connect your solar into tnb(reverse the meter when your solar generate more than your usage) and without batteries, it can be alot cheaper, lesser problems, and more worth it.

technically still not a good investment for money, unless you have so much money and no where else to spend, better dont do it, price of electricity in malaysia isnt that high yet until you need to do that, if 1 day our electricity cost double, then  your ROI will shorten, then you can reconsider.
*
kind of want to do it now for future lah, electricity also keep increasing in price now, and i'm planning to move to a new house, so want to do it now, as don't plan to move soon, initially wanted to do it on the current house, lucky didn't else, wasted.
ry8128
post Nov 9 2020, 01:29 PM

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Install before in 1 of my previous house, cost around rm35k. But not easy to install, as u need to apply for permit/license kinda of thing. Every year only few ppl can get.

Its not like i wan to install, then u can install straight. This was >5 years ago though. Not sure whats the current situation now.
atong
post Nov 9 2020, 01:29 PM

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QUOTE(darren486 @ Nov 9 2020, 01:27 PM)
macam not too bad, whats the company name?
*
It's called ERS. One of the big fish.
ihm11
post Nov 9 2020, 01:29 PM

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save ur moneh lah

bad times ahead
un.deux.trois
post Nov 9 2020, 01:31 PM

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Google net energy metering (NEM) and SEDA. Lots of information online. Last i talked with a solar provider, it will only make sense to install if your monthly bill is more than RM500.
Syie9^_^
post Nov 9 2020, 01:32 PM

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QUOTE(atong @ Nov 9 2020, 02:46 PM)
Installed solar panel for my house.

For warranty:
Panel - 20 years
Inverter - 5 + 2 years
Workmanship - 3 years

Cost me around RM 24K for the whole package. Using Maybank 0 interest 24 month installment.
So far so good. Can even monitor power panel from apps.
*
how much ROI to date?

atong
post Nov 9 2020, 01:34 PM

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QUOTE(narf03 @ Nov 9 2020, 01:24 PM)
did consider, but risk is too high, not worth the effort.

if everything according to plan, it takes 10 years to ROI. and there is no perfect guarantee it will last 10 years, and how much longer it can last after 10 years. cost of the solar panel will keep decreasing and efficiency of panels will keep increasing, in short, the later you install the faster you cover your investment. like maybe 5 years from now, it only take you 2 years to recover your investment(just blindly guess).

major part of the investment is the storage, aka batteries, if you able to strike a deal with tnb, allowing you to connect your solar into tnb(reverse the meter when your solar generate more than your usage) and without batteries, it can be alot cheaper, lesser problems, and more worth it.

technically still not a good investment for money, unless you have so much money and no where else to spend, better dont do it, price of electricity in malaysia isnt that high yet until you need to do that, if 1 day our electricity cost double, then  your ROI will shorten, then you can reconsider.
*
That is different for what I have. It takes around 3-4 years for ROI. You don't need battery if you don't want to. The installer company will apply the license for you. i literally doing nothing on that part. The power will go to the TNB grid. In fact, TNB will come and install new meter for you. The solar panel is cheap and most company provide warranty around 20 years.
atong
post Nov 9 2020, 01:36 PM

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QUOTE(Syie9^_^ @ Nov 9 2020, 01:32 PM)
how much ROI to date?
*
Estimated around 3-4 years based on current bill.
My TNB bill was around RM 300++ before. Last month, it was less than RM 10.
ichigo_6091
post Nov 9 2020, 01:44 PM

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It was more worth it when there was the Feed-in-Tariff (FiT) scheme, that scheme you can sell back to TNB at high margins.
with NEM scheme, sure you can recoup your investment, but on average it is about 7-8 years.
Might as well wait a little longer until 2-3 years from now once battery storage price / kWh becomes way cheaper.
now you install solar at your house(residential), its like catching falling knife in my opinion.
but if you install for capacity at larger than 50kWp, it makes more sense economically, you can ROI quicker on average 5-6 years.
I work in solar EPC company, anything can direct PM ask.
weissPC
post Nov 9 2020, 01:45 PM

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QUOTE(MrBaba @ Nov 9 2020, 01:10 PM)
Unless yr house got a power wall to store extra electric,  solar panel is a scam. In theory it will take 10 yr to pay for it self,  but ask yr self this question when yr house hold use more electric day time or night time?  Night time solar panel working?  Morning extra electric go to where?
*
I thought got the scheme where TNB have to buy your extra electricity generated - net energy metering. So no worries about when is your usage, day time you generate extra, TNB buy, night time you use extra, you pay the net usage la...
MrBaba
post Nov 9 2020, 01:45 PM

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QUOTE(darren486 @ Nov 9 2020, 01:24 PM)
i'm actually using more in the day, coz me and wife working from home, but i heard that we can even sell it back if underutilize, of can sort of get a discount, i don't think it have any battery pack kuah, coz i remember they say can sell extra to TNB if underutilised, so no need headache
*
The sell back scheme long time ago aldy close like 4-5 yr ago, if got extra electric it will discard into ground je. Mal solar seller dont sell battery with it so totally no point getting solar panel.
Syie9^_^
post Nov 9 2020, 01:45 PM

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QUOTE(atong @ Nov 9 2020, 03:06 PM)
Estimated around 3-4 years based on current bill.
My TNB bill was around RM 300++ before. Last month, it was less than RM 10.
*
that sound nice. thus mean that you will take another 3 years to recoup investment? wub.gif
MrBaba
post Nov 9 2020, 01:46 PM

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QUOTE(weissPC @ Nov 9 2020, 01:45 PM)
I thought got the scheme where TNB have to buy your extra electricity generated - net energy metering. So no worries about when is your usage, day time you generate extra, TNB buy, night time you use extra, you pay the net usage la...
*
There a dedicated thread about the scheme last check the scheme not taking in new application since 4-5 yr ago dy.
darkterror15
post Nov 9 2020, 01:52 PM

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if for household then ok because extra you sell back to tnb provided u have hybrid inverter. for household you dont need solar battery because night u can use back tnb line.

1 1800w solar battery cost as much as a 345w 2m x 1m solar panel. so if you wanna save half the price then dont need to buy battery lo.

being setting up off grid solar power for my dad with battery. everything DIY so have to make sure read all the specs.

yes solar panel will degrade, but still will maintain 90% capacity after 10 years and 80% after 20 years. you need to do dusting too if solar panel is dirty.

for my dad 1kw off grid solar part cost around 7k+ with 4 solar gel battery 1800w.

useful for off grid and also during zombie apocalypse sweat.gif
tahfeikei
post Nov 9 2020, 02:01 PM

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This post has been edited by tahfeikei: Nov 9 2020, 02:02 PM
TSdarren486
post Nov 9 2020, 02:10 PM

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QUOTE(MrBaba @ Nov 9 2020, 01:46 PM)
There a dedicated  thread about the scheme last check the scheme not taking in new application  since 4-5 yr ago dy.
*
i'm asking coz i get like FB advert regarding this poping up again, so not sure if it's still applicable, so wanna know first
s@ni
post Nov 9 2020, 02:15 PM

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QUOTE(atong @ Nov 9 2020, 01:36 PM)
Estimated around 3-4 years based on current bill.
My TNB bill was around RM 300++ before. Last month, it was less than RM 10.
*
ya..sangat2 bergantung kepada perbelanjaan electric diri sendiri
Gon Freaks
post Nov 9 2020, 02:16 PM

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yeah did mine.
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post Nov 9 2020, 02:18 PM

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Attached Image

Electrical - Flat solar poly & mono available.

Water heater - Non pressurized parabolic or pressurized parabolic.

narf03
post Nov 9 2020, 02:20 PM

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QUOTE(atong @ Nov 9 2020, 01:34 PM)
That is different for what I have. It takes around 3-4 years for ROI. You don't need battery if you don't want to. The installer company will apply the license for you. i literally doing nothing on that part. The power will go to the TNB grid. In fact, TNB will come and install new meter for you. The solar panel is cheap and most company provide warranty around 20 years.
*
Doesn't really make sense to get ROI in 3-4 years. Average cost to install like 35k, if 4 years ROI means you need not to pay electricity bill for the entire 4 years and you are supposed to pay like 35k/48= rm729 monthly.
pobox
post Nov 9 2020, 02:21 PM

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Go to buysolar.my free quotation from vendors and other resources for references. It's a market place platform
IcyDarling
post Nov 9 2020, 02:26 PM

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QUOTE(lagista @ Nov 9 2020, 01:12 PM)
Problem is nobody invent lunar panel yet... otherwise it can cut to 5 yrs ROI only...
*
u mean to tell me that we cant harness the power of moon like sailor moon? confused.gif
aq_admiral2020
post Nov 9 2020, 02:34 PM

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only useful on sunny day. on raining season, power output next to nothing.
for example, a lot of these solar power projects built by state gov in rural Sarawak but end up useless coz the system cant supply enough power for daily use, and end up collect dust during raining season.
lagista
post Nov 9 2020, 02:48 PM

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QUOTE(aq_admiral2020 @ Nov 9 2020, 02:34 PM)
only useful on sunny day. on raining season, power output next to nothing.
for example, a lot of these solar power projects built by state gov in rural Sarawak but end up useless coz the system cant supply enough power for daily use, and end up collect dust during raining season.
*
Affected by songlap power also
keyibukeyi
post Nov 9 2020, 03:30 PM

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rainny days GG.com
maxpudding
post Nov 9 2020, 03:34 PM

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How much? Depends on kWp lor

Rule of thumb is these days it costs rm4-6k for each 1 kWp...to know how much you need you have to calculate your daily usage
drowning
post Nov 9 2020, 03:36 PM

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QUOTE(MrBaba @ Nov 9 2020, 01:10 PM)
Unless yr house got a power wall to store extra electric,  solar panel is a scam. In theory it will take 10 yr to pay for it self,  but ask yr self this question when yr house hold use more electric day time or night time?  Night time solar panel working?  Morning extra electric go to where?
*
Bodo under the NEM scheme, you just sell back the electric day time and contra back whatever you use at night lah.


Pain4UrsinZ
post Nov 9 2020, 03:37 PM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
apartment how to install
maxpudding
post Nov 9 2020, 03:39 PM

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QUOTE(Pain4UrsinZ @ Nov 9 2020, 03:37 PM)
apartment how to install
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Lol
adamw
post Nov 9 2020, 03:39 PM

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If really keen do it fast, glass shortage, later price will spike!
MrBaba
post Nov 9 2020, 03:51 PM

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QUOTE(drowning @ Nov 9 2020, 03:36 PM)
Bodo under the NEM scheme, you just sell back the electric day time and contra back whatever you use at night lah.
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U aldy fulfil one of the requirements for menteri position
TSdarren486
post Nov 9 2020, 03:52 PM

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Thx all, have ask for some quotation already, will see how is it, estimation is around 35k currently
kswee
post Nov 9 2020, 03:56 PM

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QUOTE(darren486 @ Nov 9 2020, 04:52 PM)
Thx all, have ask for some quotation already, will see how is it, estimation is around 35k currently
*
What is the capacity do you need?


Model
Description
Quantity

Solar Panel
Mono 390w solar panel
26 pcs

Grid-tied Inverter
10kw
1 pc

Wi-Fi Module
Monitoring device
1 pc

Mounting Support
Roof/Ground
1 set

Cable
4mm² PV cable
200 m

Connector
Solar connector
10 pairs

Tools Bag
Solar Installation tools
1 set

This post has been edited by kswee: Nov 9 2020, 04:10 PM
enduser
post Nov 9 2020, 04:04 PM

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Go here n chk out

https://www.gsparx.com

Gsparx is tnb subsidiaries
TSdarren486
post Nov 10 2020, 10:31 AM

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QUOTE(kswee @ Nov 9 2020, 03:56 PM)
What is the capacity do you need?
Model
Description
Quantity

Solar Panel
Mono 390w solar panel
26 pcs

Grid-tied Inverter
10kw
1 pc

Wi-Fi Module
Monitoring device
1 pc

Mounting Support
Roof/Ground
1 set

Cable
4mm² PV cable
200 m

Connector
Solar connector
10 pairs

Tools Bag
Solar Installation tools
1 set
*
i have no idea, just follow the page from buy solar, gave my monthly usage, and they say the price for installation is going to be around 35k for residential. https://www.buysolar.my/

kennykong85
post Nov 10 2020, 10:34 AM

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u can check tnb website, still got gua...
min cost is 9k, household la... so u think u wanna fork out the 9k to install solar panel and hope for roi in 9~10 yrs....
kswee
post Nov 10 2020, 10:40 AM

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QUOTE(darren486 @ Nov 10 2020, 11:31 AM)
i have no idea, just follow the page from buy solar, gave my monthly usage, and they say the price for installation is going to be around 35k for residential. https://www.buysolar.my/
*
I can qoute for 10,000 watt - 20,000 watt full set.
On grid or hybrid system.

10,000 watt can run approx 3-5 nos of high efficiency 1 hp air conditioner

If maximize usage.
Return on investment 4-5 years onwards.


TSdarren486
post Nov 10 2020, 12:33 PM

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QUOTE(kswee @ Nov 10 2020, 10:40 AM)
I can qoute for 10,000 watt - 20,000 watt full set.
On grid or hybrid system.

10,000 watt can run approx 3-5 nos of  high efficiency 1 hp air conditioner

If maximize usage.
Return on investment 4-5 years onwards.
*
i have no idea how much is that blink.gif my usage is around RM450 right now per month i'm technically 0 knowledge on this, just looking for a quote to see how much is the installation as planning to move to a new house
the bro of blanco P
post Nov 13 2020, 09:17 AM

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QUOTE(kennykong85 @ Nov 10 2020, 10:34 AM)
u can check tnb website, still got gua...
min cost is 9k, household la... so u think u wanna fork out the 9k to install solar panel and hope for roi in 9~10 yrs....
*
QUOTE(kswee @ Nov 10 2020, 10:40 AM)
I can qoute for 10,000 watt - 20,000 watt full set.
On grid or hybrid system.

10,000 watt can run approx 3-5 nos of  high efficiency 1 hp air conditioner

If maximize usage.
Return on investment 4-5 years onwards.
*
QUOTE(darren486 @ Nov 10 2020, 12:33 PM)
i have no idea how much is that  blink.gif  my usage is around RM450 right now per month i'm technically 0 knowledge on this, just looking for a quote to see how much is the installation as planning to move to a new house
*
i heard that solar panel efficiency drops drastically if it is dirty or dusty. if you mount if on your roof then obviously it becomes unfeasible to clean it regularly.

am i correct?
WhatMan
post Nov 13 2020, 09:21 AM

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I got solar garden light. Not bad. Also got tiny solar light that you can buy at Daiso. Not very strong but the ambient is just nice enough. So far nobody bother to steal it.
okyjace
post Nov 13 2020, 09:33 AM

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QUOTE(darren486 @ Nov 9 2020, 02:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
My father installed many years ago. Cost is constantly falling, so best for you to just call one of the many installers for a quote. He doesn't clean the panels, so dirt buildup has increased the power degradation. I suggest not to think of it in terms of dollars and cents because the difference is negligible. Best to think of it as doing your bit to save the environment by reducing your carbon footprint. If you got some spare cash lying around, then why not.

kswee
post Nov 13 2020, 09:35 AM

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QUOTE(the bro of blanco @ Nov 13 2020, 10:17 AM)
i heard that solar panel efficiency drops drastically if it is dirty or dusty. if you mount if on your roof then obviously it becomes unfeasible to clean it regularly.

am i correct?
*
Yes lower output for solar by few percent.
Rain water will help to clean.

sakaic
post Nov 13 2020, 10:01 AM

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QUOTE(MrBaba @ Nov 9 2020, 01:45 PM)
The sell back scheme  long time ago aldy close like 4-5 yr ago, if got extra electric it will discard into ground je.  Mal solar seller dont sell battery with it so totally no point getting solar panel.
*
I don't think you know how this works.

The solar system is grid tied meaning you are connected to TNB. Under the old system, you will have 2 meters. One for how much you use which you pay as usual and another for how much you generate which you sell to TNB for a pre agreed rate for 20 years. So if you ROI in 5 years, you untung for 15.

Under the new system, the meter is 2 way. Whatever you generate you consume. What ever you don't consume is sold back to the grid so your meter will effectively gostan. So end of the month, your electric bill is kWh consumed- kWh generated and then the standard blocking applies.

So why is it worth it if your bill is high? You reduce the number of units in the higher blocks.
yeapsc73
post Nov 13 2020, 10:02 AM

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1 kWp solar pv installation costs about 5-6k
1 kWp solar pv generate approx 4 kWh per day in average
do your own maths
MGM
post Nov 13 2020, 11:28 AM

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QUOTE(okyjace @ Nov 13 2020, 09:33 AM)
My father installed many years ago. Cost is constantly falling, so best for you to just call one of the many installers for a quote. He doesn't clean the panels, so dirt buildup has increased the power degradation. I suggest not to think of it in terms of dollars and cents because the difference is negligible. Best to think of it as doing your bit to save the environment by reducing your carbon footprint. If you got some spare cash lying around, then why not.
*
An added benefit of installing solar panels on roof area that discourage break-in from roof.
etan26
post Jan 26 2021, 12:11 PM

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System size proposed : 11.7kWP (26panels)
Estimated monthly savings: Around RM600
Estimated annual savings: Around RM7200
Price : RM38,000
etan26
post Jan 26 2021, 12:13 PM

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QUOTE(yeapsc73 @ Nov 13 2020, 10:02 AM)
1 kWp solar pv installation costs about 5-6k
1 kWp solar pv generate approx 4 kWh per day in average
do your own maths
*
Brudder, now so cheap already ......
MGM
post Jan 26 2021, 12:19 PM

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QUOTE(etan26 @ Jan 26 2021, 12:13 PM)
Brudder, now so cheap already ......
*
Isnt yours cheaper only rm3247/kWp?
enduser
post Jan 26 2021, 12:26 PM

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QUOTE(MGM @ Nov 13 2020, 11:28 AM)
An added benefit of installing solar panels on roof area that discourage break-in from roof.
*
Its make house more cooler, less heat trap under the roof ceiling
KIP21
post Jan 31 2021, 09:34 AM

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QUOTE(etan26 @ Jan 26 2021, 12:11 PM)
System size proposed : 11.7kWP (26panels)
Estimated monthly savings: Around RM600
Estimated annual savings: Around RM7200
Price : RM38,000
*
Are you a solar vendor or are you the user? 11.7kWp from the panels. What about the output of the inverter in kW? And also the NEM declare installed capacity kWac?

Thanks
etan26
post Jan 31 2021, 10:03 AM

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QUOTE(KIP21 @ Jan 31 2021, 09:34 AM)
Are you a solar vendor or are you the user? 11.7kWp from the panels. What about the output of the inverter in kW? And also the NEM declare installed capacity kWac?

Thanks
*

I am a user, you expect a big drop at the inverter output? Are you a vendor?
SUSahter
post Jan 31 2021, 10:28 AM

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Now got 20% off for early birds till end of Feb 2021.


Attached File(s)
Attached File  GSPARX_GOV_and_GLC_Promo.pdf ( 923.19k ) Number of downloads: 305
etan26
post Jan 31 2021, 10:31 AM

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QUOTE(ahter @ Jan 31 2021, 10:28 AM)
Now got 20% off for early birds till end of Feb 2021.
*
For the same capacity, I was quoted RM44k . . .
billyboy
post Jan 31 2021, 10:31 AM

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tomorrow NEM 3.0 open for application.....

i think about mid-teens return (not cash - set off TNB bill) if your bill > RM250.

Make sure you get at about RM4k per kw or lower.

Ensure its Grade 1 solar panel, and Grade 1 inverter. They'll try short change (curi ayam) you on these two items.

i'm not an installer so don't ask me for price.

This post has been edited by billyboy: Jan 31 2021, 10:32 AM
Lim Wee Huat
post Jan 31 2021, 10:34 AM

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Energy prep is a GOOD prep but don't rely solely on solar as the alternative energy source. Solar parts are expensive and can be difficult to find further down the road.
etan26
post Jan 31 2021, 10:55 AM

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QUOTE(Lim Wee Huat @ Jan 31 2021, 10:34 AM)
Energy prep is a GOOD prep but don't rely solely on solar as the alternative energy source. Solar parts are expensive and can be difficult to find further down the road.
*
Are Solar parts are getting cheaper or expensive? Also getting lesser supply, is that what you are implying?
KIP21
post Jan 31 2021, 11:46 AM

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QUOTE(etan26 @ Jan 31 2021, 10:03 AM)
I am a user, you expect a big drop at the inverter output? Are you a vendor?
*
Hi,
I am a to be user. 6.12kWp I purchased and NEM contract only state 5.0kWac as declared install capacity. I look at the inverter also 5kW. I am confuse on this technical therefore want to know more of existing users. Hope you can share your technical info. Appreciate the help
old_and_slow
post Jan 31 2021, 11:46 AM

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QUOTE(etan26 @ Jan 31 2021, 10:55 AM)
Are Solar parts are getting cheaper or expensive? Also getting lesser supply, is that what you are implying?
*
solar installation now cheaper by 80% compared to 10 years ago.
billyboy
post Jan 31 2021, 11:49 AM

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QUOTE(Lim Wee Huat @ Jan 31 2021, 10:34 AM)
Energy prep is a GOOD prep but don't rely solely on solar as the alternative energy source. Solar parts are expensive and can be difficult to find further down the road.
*
you...sir.....are talking nonsense......

solar panels are getting cheaper every year. .....google Swanson's Law











👎 maxxxxx0123 disliked this post
billyboy
post Jan 31 2021, 11:54 AM

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QUOTE(KIP21 @ Jan 31 2021, 11:46 AM)
Hi,
I am a to be user. 6.12kWp I purchased and NEM contract only state 5.0kWac as declared install capacity. I look at the inverter also 5kW. I am confuse on this technical therefore want to know more of existing users. Hope you can share your technical info. Appreciate the help
*
6.12kw purchased ....solar panel ?
5.0kw inverter

ideally the solar panel kw should match the inverter kw.

however sometime SP curi ayam and reduced the inverter sizing a little. Inverter can be over-stressed a little during peak period. however the shelf life will be shorter. by that time the SP will tell you no more warranty. you are on your own.

ask him nicely to give you a 6kw inverter (maybe 2 x 3kw, if lucky can find single piece 6kw) otherwise you might go look for SEDA to report on SP who give bad advice.........same price of course....make sure decent quality inverter too..
pattleongkam
post Jan 31 2021, 12:02 PM

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aiya...why sell back to tnb and become thier kai_dai,

you already bought the cow, why kiamsiap for the rope!!

just build the power wall slowly and is at a very low cost nowadays.. then can live off-grid and show tnb this

» Click to show Spoiler - click again to hide... «


brows.gif brows.gif brows.gif
Lim Wee Huat
post Jan 31 2021, 12:03 PM

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QUOTE(billyboy @ Jan 31 2021, 11:49 AM)
you...sir.....are talking nonsense......

solar panels are getting cheaper every year. .....google Swanson's Law
👎  maxxxxx0123 disliked this post
*
No worries, nonsense or not, we'll see.
KIP21
post Jan 31 2021, 12:04 PM

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QUOTE(billyboy @ Jan 31 2021, 11:54 AM)
6.12kw purchased ....solar panel ?
5.0kw inverter

ideally the solar panel kw should match the inverter kw.

however sometime SP curi ayam and reduced the inverter sizing a little. Inverter can be over-stressed a little during peak period. however the shelf life will be shorter.  by that time the SP will tell you no more warranty. you are on your own.

ask him nicely to give you a 6kw inverter (maybe 2 x 3kw, if lucky can find single piece 6kw) otherwise you might go look for SEDA to report on SP who give bad advice.........same price of course....make sure decent quality inverter too..
*
Thanks and good info. What the panel able to get peak is 6.12kWp DC, and the inverter output is 5kW AC. They claim technically must be between 1.2 - 1.4 ratio factor for energy lost... i have no clue on this. I do agree with you that if incoming is high to the incerter, it may load it and shorten the lifespan. Should make the future maintenance business for the contractor. .. hmm ...
billyboy
post Jan 31 2021, 12:41 PM

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QUOTE(KIP21 @ Jan 31 2021, 12:04 PM)
Thanks and good info. What the panel able to get peak is 6.12kWp DC, and the inverter output is 5kW AC. They claim technically must be between 1.2 - 1.4 ratio factor for energy lost... i have no clue on this. I do agree with you that if incoming is high to the incerter, it may load it and shorten the lifespan.  Should make the future maintenance business for the contractor. .. hmm ...
*
more practical is look at the contract which you signed.....did the SP deliver what he promised. if yes, you don't have much recourse.....
etan26
post Jan 31 2021, 02:05 PM

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QUOTE(KIP21 @ Jan 31 2021, 11:46 AM)
Hi,
I am a to be user. 6.12kWp I purchased and NEM contract only state 5.0kWac as declared install capacity. I look at the inverter also 5kW. I am confuse on this technical therefore want to know more of existing users. Hope you can share your technical info. Appreciate the help
*
Mine is will be 11.7 kwp and the inverter is 10kw ..... The ratio shud be 1.0-1.3
ticke
post Jan 31 2021, 03:23 PM

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QUOTE(atong @ Nov 9 2020, 01:16 PM)
Installed solar panel for my house.

For warranty:
Panel - 20 years
Inverter - 5 + 2 years
Workmanship - 3 years

Cost me around RM 24K for the whole package. Using Maybank 0 interest 24 month installment.
So far so good. Can even monitor power panel from apps.
*
how do u clean the panel when it gets dirty? diy
yeapsc73
post Feb 2 2021, 09:05 PM

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QUOTE(etan26 @ Jan 26 2021, 12:13 PM)
Brudder, now so cheap already ......
*
Depends on installed capacity. If only install 3kwp maybe over 5k
kingz113
post Feb 5 2021, 12:56 PM

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I'm about to pull the trigger with GSPARX for a 4kwh system for RM20,500.00. Seems like a good price.

Gonna get a quotation for a 5kwh system to see the price difference. Our monthly bill is about 130-150rm.

Is GSPARX generally reputable? or other providers are recommended?

Going on the TNB/solar site shows a quotation of RM30k for a 5kwh system.
etan26
post Feb 5 2021, 01:40 PM

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QUOTE(kingz113 @ Feb 5 2021, 12:56 PM)
I'm about to pull the trigger with GSPARX for a 4kwh system for RM20,500.00. Seems like a good price.

Gonna get a quotation for a 5kwh system to see the price difference. Our monthly bill is about 130-150rm.

Is GSPARX generally reputable? or other providers are recommended?

Going on the TNB/solar site shows a quotation of RM30k for a 5kwh system.
*
RM38k already can get a 11.7kw system, generally GSPARX is more expensive since they are part of TNB.
yushin
post Feb 5 2021, 01:47 PM

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QUOTE(kingz113 @ Feb 5 2021, 12:56 PM)
I'm about to pull the trigger with GSPARX for a 4kwh system for RM20,500.00. Seems like a good price.

Gonna get a quotation for a 5kwh system to see the price difference. Our monthly bill is about 130-150rm.

Is GSPARX generally reputable? or other providers are recommended?

Going on the TNB/solar site shows a quotation of RM30k for a 5kwh system.
*
Rm150 monthly bill worth to get solar? How long will the roi?
feekle
post Feb 5 2021, 01:56 PM

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QUOTE(kingz113 @ Feb 5 2021, 12:56 PM)
I'm about to pull the trigger with GSPARX for a 4kwh system for RM20,500.00. Seems like a good price.

Gonna get a quotation for a 5kwh system to see the price difference. Our monthly bill is about 130-150rm.

Is GSPARX generally reputable? or other providers are recommended?

Going on the TNB/solar site shows a quotation of RM30k for a 5kwh system.
*
Why not try mah bayu?
kingz113
post Feb 5 2021, 02:45 PM

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QUOTE(etan26 @ Feb 5 2021, 02:40 PM)
RM38k already can get a 11.7kw system, generally GSPARX is more expensive since they are part of TNB.
*
I think it'll be an overkill for us as our usage is only 450-500kwh per month. Don't mind going up to 5-6kwh system.

Gsparx process is quite simple. I filled a form online and got a nice deck with quotation, estimated savings, forms to sign, payment details etc. Very simple and no need to deal with any humans. Seems like quite a few here used them as well.


QUOTE(yushin @ Feb 5 2021, 02:47 PM)
Rm150 monthly bill worth to get solar? How long will the roi?
*
Based on their calculation its 10 years.

But based on my own calculation as I have access to 1% interest credit facility with no monthly repayments needed (lump sum payment at the end with interest), the money will be invested and I target 6 years ROI.


QUOTE(feekle @ Feb 5 2021, 02:56 PM)
Why not try mah bayu?
*
Ok will google them as well.

I don't mind paying more for high quality stuff. But it seems very difficult to get quality information on google. If anyone can vouch for any companies with high quality products and service albeit more expensive please let me know. A member has pm'ed me and I will contact more providers to get a comparison.

ttleng
post Feb 5 2021, 02:53 PM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
I will building a 1.2kwh solar for my farm soon with an hybrid 5KVA inverter.
Items will arive after CNY.
My order items contains a 16s BMS, LifePo4 x 16 200Ah, Solar cables 6mm, MC4 connector, solar rail and bracket, DC surge protector, circuit breaker,....
darkterror15
post Feb 5 2021, 02:58 PM

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QUOTE(ttleng @ Feb 5 2021, 02:53 PM)
I will building a 1.2kwh solar for my farm soon with an hybrid 5KVA inverter.
Items will arive after CNY.
My order items contains a 16s BMS, LifePo4 x 16 200Ah, Solar cables 6mm, MC4 connector, solar rail and bracket, DC surge protector, circuit breaker,....
*
lifepo4 200ah 12v each and 16 of those ? o mai, that gonna cost a bomb. but if 1.2kw is too slow to charge 16 of those batteries.
ttleng
post Feb 5 2021, 03:01 PM

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QUOTE(darkterror15 @ Feb 5 2021, 02:58 PM)
lifepo4 200ah 12v each and 16 of those ? o mai, that gonna cost a bomb. but if 1.2kw is too slow to charge 16 of those batteries.
*
hahaha..use to give power for a fridge only...batteries can give longer time to fridge if raining season..
johnnyg
post Feb 7 2021, 10:05 AM

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How to know which inverter and solar panel is good. So many companies offering NEM3.0. But various specs and prices.
etan26
post Feb 7 2021, 12:27 PM

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Compared the specs, most are similar and also the vendor past projects and records . . . . . get a few quotations ... then you decide lor ...
shirohamada
post Feb 7 2021, 12:34 PM

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QUOTE(New Klang @ Nov 9 2020, 01:18 PM)
Which part deteriorate?

Data sheet stated long life as long as the glass isnt broken.
*
He works for oil n gas.
Don't bother.
ghost_brocolli
post Feb 7 2021, 12:42 PM

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http://www.seda.gov.my/download/seda-guide...e-for-solar-pv/

u can sell back the excessive energy to TNB. old info, not sure latest package is how
SUSthepark
post Feb 7 2021, 01:07 PM

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Tnb pakej.

Rm1000/month.

If ur bill 500. U just pay 1000.

By 10 years its urs.
Pikichu
post Feb 7 2021, 01:12 PM

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QUOTE(lagista @ Nov 9 2020, 01:12 PM)
Problem is nobody invent lunar panel yet... otherwise it can cut to 5 yrs ROI only...
*
Roburst turbine design results in little/no maintenance over 20-year life-time
Omni-directional Design self-sufficient operation, “set-and-forget” installation
https://icewind.is/residential/

QUOTE(Al3x0174 @ Nov 9 2020, 01:16 PM)
It’s only useful to power small stuffs. Battery is the worst part of it. Low efficiency in generating electricity. Hard to store.
*
The data shows the batteries can charge to 80 percent capacity in just 15 minutes, have nearly double the energy density of top commercial lithium-ion cells
https://singularityhub.com/2020/12/20/quant...as-lithium-ion/

battery to support a larger capacity, a longer cycle life, and enhanced its overall safety. Measuring just 5µm (micrometers) thick, the ultrathin
https://news.samsung.com/global/samsung-pre...o-nature-energy

QUOTE(MrBaba @ Nov 9 2020, 01:16 PM)
What battery?
*
Different from a car battery, a solar battery is capable of surviving prolonged, repeated and deep discharges which are typical in renewable energy systems that are "off grid" (disconnected from the electric utilty company).
https://solarpower-mart.com/solar_battery

Modular design offers flexible storage options from 11.4 kWh to 17.1 kWh to accommodate any size home
https://na.panasonic.com/us/energy-solution...battery-storage

QUOTE(Al3x0174 @ Nov 9 2020, 01:16 PM)
It’s only useful to power small stuffs. Battery is the worst part of it. Low efficiency in generating electricity. Hard to store.
*


https://www.newsweek.com/amplify/how-many-s...things-consider

johnnyg
post Feb 7 2021, 03:45 PM

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QUOTE(etan26 @ Feb 7 2021, 12:27 PM)
Compared the specs, most are similar and also the vendor past projects and records . . . . . get a few quotations ... then you decide lor ...
*
Sending some requests. Thanks.
johnnyg
post Feb 7 2021, 03:47 PM

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QUOTE(thepark @ Feb 7 2021, 01:07 PM)
Tnb pakej.

Rm1000/month.

If ur bill 500. U just pay 1000.

By 10 years its urs.
*
One vendor informed another package. Pay 30% and vendor will install the system at your home. Your bill discounted by 30%. Anytime want to buy over can be done. Haven’t got the details yet on this.
MGM
post Feb 7 2021, 06:31 PM

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QUOTE(johnnyg @ Feb 7 2021, 03:47 PM)
One vendor informed another package. Pay 30% and vendor will install the system at your home. Your bill discounted by 30%. Anytime want to buy over can be done. Haven’t got the details yet on this.
*
If 30% is their cost, they r using u to make money for them, very good biz.
mousqy
post Apr 12 2022, 12:51 AM

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battery tech still lousy
tesla stuff not cheap
ikankering
post Apr 12 2022, 01:05 AM

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no money. too expensive i think.
nauticat99
post Apr 12 2022, 01:22 AM

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If you are planning to move to a new house, you would be shopping for a lot of new electrical appliances. Use LED lights, inverter Aircond, inverter fridge, energy efficient/ high star ratings electrical appliances and using black out curtains would help in reducing electricity bills. We were so surprised our current bill is way cheaper than previous house and majority is due to new appliances that is more energy savings.
arinpresto
post Apr 12 2022, 06:23 AM

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Bump.

I also wanna know as i planning to install one hopefully this year.
kevyeoh
post Jun 23 2022, 04:33 PM

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latest market price for 4kW system is around RM20k...

QUOTE(ikankering @ Apr 12 2022, 01:05 AM)
no money. too expensive i think.
*
got any more specific numbers to share? like way cheaper is how much from RM200 to RM150 as example?

QUOTE(nauticat99 @ Apr 12 2022, 01:22 AM)
If you are planning to move to a new house, you would be shopping for a lot of new electrical appliances. Use LED lights, inverter Aircond, inverter fridge, energy efficient/ high star ratings electrical appliances and using black out curtains would help in reducing electricity bills. We were so surprised our current bill is way cheaper than previous house and majority is due to new appliances that is more energy savings.
*
if you plan to install, you also need to wait for months, takes time to apply SEDA then wait and wait...

QUOTE(arinpresto @ Apr 12 2022, 06:23 AM)
Bump.

I also wanna know as i planning to install one hopefully this year.
*
Jo_da48
post Oct 16 2022, 10:59 AM

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Anyone have list of questions shall that could use to determine what vendors shall choice?
1) Warrenty of good
i:panels
ii: inverters
2) Provider background / history?
3) Type of solar system?
4) Price?


Jazted
post Oct 16 2022, 11:15 AM

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QUOTE(thepark @ Feb 7 2021, 01:07 PM)
Tnb pakej.

Rm1000/month.

If ur bill 500. U just pay 1000.

By 10 years its urs.
*
What if you have 2 houses? When we install at one of the house, can it offset both bills?
Jo_da48
post Oct 19 2022, 09:11 AM

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Look like change from single to 3 phase need lot of work especially internal wiring path sad.gif
what the cost saving members have for 4Kwac type?
TSdarren486
post Oct 19 2022, 11:53 AM

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i've just finished installing it on end August with verdant solar, they settle everything from SEDA application to intallation for a 15 panel unit, total cost was 27k, last month 1 full month was able to cut down about RM 350 from usage
pg84
post Oct 19 2022, 11:59 AM

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QUOTE(darren486 @ Oct 19 2022, 11:53 AM)
i've just finished installing it on end August with verdant solar, they settle everything from SEDA application to intallation for a 15 panel unit, total cost was 27k, last month 1 full month was able to cut down about RM 350 from usage
*
Wats ur avg bill B4 installation, ur system is how many KW? I may want to install also, my bill about 600
WhatMan
post Oct 19 2022, 12:01 PM

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Got, backyard light powered by solar. Self install since come in a package.
evolance7
post Oct 19 2022, 12:03 PM

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NEM 3.0 sample. 12kWp System. 2 story house.
TSdarren486
post Oct 19 2022, 01:43 PM

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QUOTE(pg84 @ Oct 19 2022, 11:59 AM)
Wats ur avg bill B4 installation, ur system is how many KW? I may want to install also, my bill about 600
*
mine usually about 450, last month full month bill less than 80, but last month my area also got alot of rainy days, so i feel it's still ok lah
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post Oct 19 2022, 02:21 PM

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QUOTE(darren486 @ Oct 19 2022, 11:53 AM)
i've just finished installing it on end August with verdant solar, they settle everything from SEDA application to intallation for a 15 panel unit, total cost was 27k, last month 1 full month was able to cut down about RM 350 from usage
*
So it will take ~6.5 years to recoup back the cost. Not bad. thumbsup.gif
TSdarren486
post Oct 19 2022, 04:15 PM

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QUOTE(MGM @ Oct 19 2022, 02:21 PM)
So it will take ~6.5 years to recoup back the cost. Not bad. thumbsup.gif
*
yeah, hopefully it doesn't give me too much headache lah LOL
upcars
post Oct 19 2022, 04:22 PM

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Nem 1 and nem 2 user here.

Solar good.
billyboy
post Oct 19 2022, 04:24 PM

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FIT and DIY DC system. solar good
billyboy
post Oct 19 2022, 04:25 PM

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QUOTE(upcars @ Oct 19 2022, 04:22 PM)
Nem 1 and nem 2 user here.

Solar good.
*
you got quota for both NEM1 and NEM2 ?
upcars
post Oct 19 2022, 04:26 PM

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QUOTE(billyboy @ Oct 19 2022, 04:25 PM)
you got quota for both NEM1 and NEM2 ?
*
Quota according to bajet for nem 1.
Nem 2 is 70% of average billing
Nem 3 is 12kwp Max for residential.
billyboy
post Oct 19 2022, 04:33 PM

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QUOTE(upcars @ Oct 19 2022, 04:26 PM)
Quota according to bajet for nem 1.
Nem 2 is 70% of average billing
Nem 3 is 12kwp Max for residential.
*
i got FIT, and tried applying for NEM3 but got rejected... sad.gif
upcars
post Oct 19 2022, 04:35 PM

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QUOTE(billyboy @ Oct 19 2022, 04:33 PM)
i got FIT, and tried applying for NEM3 but got rejected... sad.gif
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Apply from corporate. Excess from factory or commercial can undertable transfer excess to housing by using creative accounting. Is loophole and legal.


Jo_da48
post Oct 22 2022, 02:15 PM

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QUOTE(upcars @ Oct 19 2022, 04:22 PM)
Nem 1 and nem 2 user here.

Solar good.
*
any specific brand that need to address for home user?
* Seem like different brand different price innocent.gif

upcars
post Oct 22 2022, 09:51 PM

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QUOTE(Jo_da48 @ Oct 22 2022, 02:15 PM)
any specific brand that need to address for home user?
* Seem like different brand different price  innocent.gif
*
How many kW ?
Donphatz
post Oct 22 2022, 10:01 PM

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so i did some enquiry and found out that the best is to install panel that can reduce monthly bills by 70%. Because if not if the reduction is more than 100% it will carry forward to next bills and if it goes on till end of the year and your bill still negative, come january TNB will not carry forward the balance.
Jo_da48
post Oct 29 2022, 01:35 PM

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any members use "https://www.simplisolar.com/"?
I'm looking at Sols Energy (Backup by Petronas) / Verdant too.
Comments are welcome.

Need change from Single Phase to 3 phase if need more than 5KW. Any recommend TNB Approval contractors that could do internal wiring too?


This post has been edited by Jo_da48: Oct 29 2022, 01:39 PM
TSdarren486
post Oct 31 2022, 11:20 AM

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QUOTE(Jo_da48 @ Oct 29 2022, 01:35 PM)
any members use "https://www.simplisolar.com/"?
I'm looking at Sols Energy (Backup by Petronas) /  Verdant too.
Comments are welcome.

Need change from Single Phase to 3 phase if need more than 5KW. Any recommend TNB Approval contractors that could do internal wiring too?
*
i've just finished the installation with verdant, quick and torture free, they apply everything on your behalf, so you don't need to headache anything.
kkranger
post Nov 1 2022, 02:32 PM

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Hello everyone. I want to install for my house, a semi D. My current bill is about 600- 650 per month. Few years back when i was renting an old house, the bill comes up to 800-1000 per month.

I read from here that usually may need about 11-12kW if my bills are about 600-650. The cost is nearly rm54k for gsparx 😩. Will wait for other quotations.

Want to ask any of you here who have installed this system, how is your experience nowafter few years of using it. Is the projected savings correct? ANy issues? Thanks
feekle
post Nov 1 2022, 02:43 PM

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QUOTE(kkranger @ Nov 1 2022, 02:32 PM)
Hello everyone. I want to install for my house, a semi D. My current bill is about 600- 650 per month. Few years back when i was renting an old house, the bill comes up to 800-1000 per month.

I read from here that usually may need about 11-12kW if my bills are about 600-650. The cost is nearly rm54k for gsparx 😩. Will wait for other quotations.

Want to ask any of you here who have installed this system, how is your experience nowafter few years of using it. Is the projected savings correct? ANy issues?  Thanks
*
did u contacted mah bayu? laugh.gif
etan26
post Nov 1 2022, 02:47 PM

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QUOTE(kkranger @ Nov 1 2022, 02:32 PM)
Hello everyone. I want to install for my house, a semi D. My current bill is about 600- 650 per month. Few years back when i was renting an old house, the bill comes up to 800-1000 per month.

I read from here that usually may need about 11-12kW if my bills are about 600-650. The cost is nearly rm54k for gsparx 😩. Will wait for other quotations.

Want to ask any of you here who have installed this system, how is your experience nowafter few years of using it. Is the projected savings correct? ANy issues?  Thanks
*
Bagus, no regret. AAA
arturo_bandini
post Nov 1 2022, 08:33 PM

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QUOTE(ichigo_6091 @ Nov 9 2020, 01:44 PM)
It was more worth it when there was the Feed-in-Tariff (FiT) scheme, that scheme you can sell back to TNB at high margins.
with NEM scheme, sure you can recoup your investment, but on average it is about 7-8 years.
Might as well wait a little longer until 2-3 years from now once battery storage price / kWh becomes way cheaper.
now you install solar at your house(residential), its like catching falling knife in my opinion.
but if you install for capacity at larger than 50kWp, it makes more sense economically, you can ROI quicker on average 5-6 years.
I work in solar EPC company, anything can direct PM ask.
*
Feed-in-Tariff scheme no longer running? where can i get latest official info?
Jo_da48
post Nov 4 2022, 09:31 AM

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QUOTE(darren486 @ Oct 31 2022, 11:20 AM)
i've just finished the installation with verdant, quick and torture free, they apply everything on your behalf, so you don't need to headache anything.
*
Is that included 3 Phase or just the solar?

damnguy36
post Nov 4 2022, 09:57 AM

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QUOTE(acbc @ Nov 9 2020, 01:07 PM)
I read somewhere the ROI is between 9-10 years.
*
yeah the ROI take years, thats why still not worth it for kuli ppl like us, seldom at home

maybe retired home where u always 24hours AC


max_cavalera
post Nov 4 2022, 10:06 AM

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Solar panel is kinda like rich pipu game/hobby.

U willing to spend 30-40k to reduce rm100-300 tnb bills monthly? The battery capacity and panel also deterioriate yearly. After 10 years maybe your solar panel system kaput need replace with new one.
ttleng1998
post Nov 4 2022, 10:08 AM

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QUOTE(aq_admiral2020 @ Nov 9 2020, 02:34 PM)
only useful on sunny day. on raining season, power output next to nothing.
for example, a lot of these solar power projects built by state gov in rural Sarawak but end up useless coz the system cant supply enough power for daily use, and end up collect dust during raining season.
*
This project failed, need ask bini Bossku..
mac_mac21
post Nov 4 2022, 10:14 AM

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Cost will depend on how much power in kilowatt u need in your house
yushin
post Nov 4 2022, 10:14 AM

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QUOTE(max_cavalera @ Nov 4 2022, 10:06 AM)
Solar panel is kinda like rich pipu game/hobby.

U willing to spend 30-40k to reduce rm100-300 tnb bills monthly? The battery capacity and panel also deterioriate yearly. After 10 years maybe your solar panel system kaput need replace with new one.
*
Hobi kita mahal... cool2.gif
SUSNew Klang
post Nov 4 2022, 10:17 AM

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QUOTE(max_cavalera @ Nov 4 2022, 10:06 AM)
Solar panel is kinda like rich pipu game/hobby.

U willing to spend 30-40k to reduce rm100-300 tnb bills monthly? The battery capacity and panel also deterioriate yearly. After 10 years maybe your solar panel system kaput need replace with new one.
*
Based on your calculations, spend 20k to save 2k per year in 10 years?
yushin
post Nov 4 2022, 10:19 AM

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QUOTE(New Klang @ Nov 4 2022, 10:17 AM)
Based on your calculations, spend 20k to save 2k per year in 10 years?
*
Well, depends on how much TNB tariff increase later. tongue.gif
The higher TNB increase your ROI will be even faster.
SUSNew Klang
post Nov 4 2022, 10:20 AM

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QUOTE(yushin @ Nov 4 2022, 10:19 AM)
Well, depends on how much TNB tariff increase later.  tongue.gif
The higher TNB increase your ROI will be even faster.
*

My monthly bill is less than rm50
yushin
post Nov 4 2022, 10:22 AM

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QUOTE(New Klang @ Nov 4 2022, 10:20 AM)
My monthly bill is less than rm50
*
TBH if your monthly bill less than rm50 no point doing solar la. blush.gif
ICDeadPeople
post Nov 4 2022, 10:39 AM

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QUOTE(max_cavalera @ Nov 4 2022, 10:06 AM)
Solar panel is kinda like rich pipu game/hobby.

U willing to spend 30-40k to reduce rm100-300 tnb bills monthly? The battery capacity and panel also deterioriate yearly. After 10 years maybe your solar panel system kaput need replace with new one.
*
Not quite. My bills before installing is ~600-700. After is ~RM0-RM11. Installation cost ~RM39k. No battery though.
vapanel
post Nov 4 2022, 10:43 AM

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QUOTE(ICDeadPeople @ Nov 4 2022, 10:39 AM)
Not quite. My bills before installing is ~600-700. After is ~RM0-RM11. Installation cost ~RM39k. No battery though.
*
10kW?
ICDeadPeople
post Nov 4 2022, 11:17 AM

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QUOTE(vapanel @ Nov 4 2022, 10:43 AM)
10kW?
*
9.45, 21 panel.
nikkokl
post Nov 4 2022, 11:41 AM

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QUOTE(MGM @ Oct 19 2022, 02:21 PM)
So it will take ~6.5 years to recoup back the cost. Not bad. :thumbsup:
*
More like 7.5 years breakeven realistically after accounting for present value of future flows and deterioration of solar efficiency and maintenance for some
vapanel
post Nov 4 2022, 12:18 PM

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QUOTE(ICDeadPeople @ Nov 4 2022, 11:17 AM)
9.45, 21 panel.
*
Seems like per panel is higher wattage.
So use 380w panel achieve 5kW with 140panel.
vapanel
post Nov 4 2022, 12:18 PM

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QUOTE(nikkokl @ Nov 4 2022, 11:41 AM)
More like 7.5 years breakeven realistically after accounting for present value of future flows and deterioration of solar efficiency and maintenance for some
*
Need to account for inflation
TSdarren486
post Nov 10 2022, 12:43 PM

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QUOTE(Jo_da48 @ Nov 4 2022, 09:31 AM)
Is that included 3 Phase or just the solar?
*
mine include the application for NEM 3 as well, or if you referring to the the electricity, my house memang already 3 phase all the while.

This post has been edited by darren486: Nov 10 2022, 12:45 PM
linuss
post Nov 13 2022, 12:29 AM

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Have anyone use Plus Xnergy? How is their quality of inverter & panels? How is it compare to Verdant Solar?

I'm leaning toward Plus Xnergy, but nothing is confirmed.Looking forward to some replies
Jo_da48
post Nov 16 2022, 11:10 PM

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Change Single phase to 3 Phase need 5K for the TNB approval contractor job, then another 1K-2K for TNB connection cost...that crazy.
No sure good initial investiment or not. anyone have formula?

still hangging ... rclxub.gif


This post has been edited by Jo_da48: Nov 16 2022, 11:16 PM
NA.Kamarulzaman P
post Dec 11 2022, 10:59 PM

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QUOTE(ICDeadPeople @ Nov 4 2022, 11:17 AM)
9.45, 21 panel.
*
May I know the name of company that u used?
enduser
post Dec 11 2022, 11:17 PM

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QUOTE(arturo_bandini @ Nov 1 2022, 08:33 PM)
Feed-in-Tariff scheme no longer running? where can i get latest official info?
*
Can read here
https://www.seda.gov.my/reportal/nem/
ICDeadPeople
post Dec 12 2022, 11:39 AM

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QUOTE(NA.Kamarulzaman @ Dec 11 2022, 10:59 PM)
May I know the name of company that u used?
*
Gsparx.
enduser
post Dec 12 2022, 12:20 PM

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QUOTE(ICDeadPeople @ Nov 4 2022, 10:39 AM)
Not quite. My bills before installing is ~600-700. After is ~RM0-RM11. Installation cost ~RM39k. No battery though.
*
can share what brand of solar panel and inverter gspark proposed for that price?

thx
ICDeadPeople
post Dec 12 2022, 02:45 PM

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QUOTE(enduser @ Dec 12 2022, 12:20 PM)
can share what brand of solar panel and inverter gspark proposed for that price?

thx
*
For panel im using Trina, inverter sungrow.
Jo_da48
post Dec 22 2022, 04:15 PM

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which brand is better?
growatt vs solis vs huawei inverter

SUSwasime
post Dec 22 2022, 04:17 PM

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i wonder when hydrogen electric generate people will make it happen tho
aliwangwang
post Dec 28 2022, 10:27 PM

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QUOTE(Jo_da48 @ Nov 16 2022, 11:10 PM)
Change Single phase to 3 Phase need 5K for the TNB approval contractor job, then another 1K-2K for TNB connection cost...that crazy.
No sure good initial investiment or not. anyone have formula?

still hangging ... rclxub.gif
*
You managed to upgrade to 3-phase? I’m stuck here as well. Only single phase though my Taman is new Taman 🥲
. Now I’m staying in with family already, not sure how hassle/hefty work it is to upgrade from single to 3-phase ?
Jo_da48
post Dec 31 2022, 09:50 AM

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QUOTE(aliwangwang @ Dec 28 2022, 10:27 PM)
You managed to upgrade to 3-phase? I’m stuck here as well. Only single phase though my Taman is new Taman 🥲
. Now I’m staying in with family already, not sure how hassle/hefty work it is to upgrade from single to 3-phase ?
*
In progress. Just done the payment for TNM upgrade application. Now wait for them to make a site visit to put the meter.
If you plan to install more than 5KWh panel, then need change from single to 3 phase. It depend on how the TNB wiring lay from your existing house (underground or over the ceiling).
worst is the cable from the meter to internal ELCB which lot of dust due to hacking and across the plaster ceiling.
the TNB approval contractor you engage shall able to advice

user posted image
Boy96
post Mar 28 2023, 04:46 AM

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So far in my fb the most popup brand advertisement is alpha solar, verdant and itramas solarsave

Then there is tnb own gsparx. Not sure how to compare, call all providers ask them to come site visit and give quotation?

Some more need to change to 3 phase first, saw some kena 3k, some kena 5k+.. so much difference..
K.I.T.T
post Mar 28 2023, 06:03 AM

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QUOTE(max_cavalera @ Nov 4 2022, 10:06 AM)
Solar panel is kinda like rich pipu game/hobby.

U willing to spend 30-40k to reduce rm100-300 tnb bills monthly? The battery capacity and panel also deterioriate yearly. After 10 years maybe your solar panel system kaput need replace with new one.
*
What happend if after 1 years take installment packaage then die ?
anak bini kena tanggung hutang ? hmm.gif

mystvearn
post Mar 28 2023, 06:13 AM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
Yes. Using it 2 years now. 10kvah/24 panels. NEM 2.0. Monthly bill about RM 5. have 3 AC from 90s. 1 in constant use. Just changed 1 90s AC to 5 star AC less than 1 month ago. Currently my bill almost a month now is like halved previously.

Cost of everything 42K. method of finance, depends. There are various methods. Pay full, loan bank, deal with tnb, fixed monthly rate with tnb for few years and then can get total discount. A year, I get back from solar 8k. Expect solar to pay back investment cost in 4 years. From year 5 onwards, save money.

Maintenance. None unless your area dusty need to clean solar. Panel warranty is 25 years. Inverter warranty is 20 years.

Lubang, yes, but my case exception. Solar panel people think my house got tile roof, but in fact it is zinc roof. There are two mounting brackets. Zinc or tile. So got micro holes. But zinc roof is made in 1980. Old roof already. Changing roof soon, and remount solar on top of the roof. Make sure to tell solar panel installer what kind of roof you have. They will bring proper bracket.

On another note. If want to jimat solar, need to use 3 phase. Not single phase. Inverter on phase, either single or 3 phase. I use gsparx. Tnb company.
Happy with service.

Now NEM 3.0. Not as great as 2.0.

This post has been edited by mystvearn: Mar 28 2023, 06:15 AM
billyboy
post Mar 28 2023, 06:22 AM

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FIT even better


Jo_da48
post Apr 3 2023, 10:40 PM

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Any one use of Optrimizer for the shading?
Can it really help a lot or just depend on time?

choonkeong
post Apr 27 2023, 12:26 PM

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https://www.facebook.com/solsenergy/posts/p...tDkHrXaJsNt4Zil

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soul78
post Apr 27 2023, 12:28 PM

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solar panel is a scam... you only put the once you reach 50...

at least can last you next 30 years efficienty...
put too early you lose efficiency...
Jingle91
post May 2 2023, 01:23 PM

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QUOTE(Boy96 @ Mar 28 2023, 04:46 AM)
So far in my fb the most popup brand advertisement is alpha solar, verdant and itramas solarsave

Then there is tnb own gsparx. Not sure how to compare, call all providers ask them to come site visit and give quotation?

Some more need to change to 3 phase first, saw some kena 3k, some kena 5k+.. so much difference..
*
I have paid deposit to ERS for their small home package during homedec last week, for 5kwp will be RM20.5k. But after that I was told by friend that actually alpha also provide similar package but only cost RM16k. And Verdant pricing is even higher than ERS

So just wondering, why pricing can have big difference up to almost RM5k for same package. Is it because of different materials or device provide by each player?

But to be honest, the sales consultant in Verdant really experience and well train. Just that they don't absorb the charges when pay by card with instalments.
phsilon
post May 6 2023, 11:44 PM

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QUOTE(Jingle91 @ May 2 2023, 01:23 PM)
I have paid deposit to ERS for their small home package during homedec last week, for 5kwp will be RM20.5k. But after that I was told by friend that actually alpha also provide similar package but only cost RM16k. And Verdant pricing is even higher than ERS

So just wondering, why pricing can have big difference up to almost RM5k for same package. Is it because of different materials or device provide by each player?

But to be honest, the sales consultant in Verdant really experience and well train. Just that they don't absorb the charges when pay by card with instalments.
*
I paid deposit to XNERGY for 5.5kW package during HomeDec. it is very expensive about 24K. I am not sure what is different with others company. Alpha offer is much cheaper then that - 21K for 6.6kW! How much is ERS quote you?
AgogoLatoto
post May 7 2023, 12:10 AM

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Use that money to invest in energy saving appliances

I.e. Inverter aircon/fridge with eco mode
Jingle91
post May 7 2023, 01:30 PM

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QUOTE(phsilon @ May 6 2023, 11:44 PM)
I paid deposit to XNERGY for 5.5kW package during HomeDec. it is very expensive about 24K.  I am not sure what is different with others company. Alpha offer is much cheaper then that - 21K for 6.6kW! How much is ERS quote you?
*
My package is 16888 for 4kwp only, just done the site visit last week, now wait for them to confirm whether my roof got enought space to fit panel for 5kwp, the sales team now quote me 20500 including all installation cost. Pros of ERS is they absorb 3% merchant charges for credit card installment.

This year the Homedec is too big with too many redundant stalls, I only manage to check with ERS and Verdant, lol, can't find alpha that day.

Because my house is under strata title, so the cable from panel to DB must be concealed if it pass through exterior wall, now I am waiting ERS to provide me revise plan as they proposed to just fix the cable in pipe on wall surface. Not sure if they can conceal for me and repaint.


Jingle91
post May 7 2023, 01:34 PM

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QUOTE(AgogoLatoto @ May 7 2023, 12:10 AM)
Use that money to invest in energy saving appliances

I.e. Inverter aircon/fridge with eco mode
*
Already change to inverter air con, but imagine 4 air con open for 8 hours per day, each mth the bill will still be more than 200 (my air con from 1.5-2.5 horse power), plus other electrical, it is common for monthly bill of RM300-500 per mth for landed house.

Just wondering, nowadays can still find non inverter fridge in mkt? lol
billyboy
post May 7 2023, 02:43 PM

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QUOTE(Jingle91 @ May 2 2023, 01:23 PM)
I have paid deposit to ERS for their small home package during homedec last week, for 5kwp will be RM20.5k. But after that I was told by friend that actually alpha also provide similar package but only cost RM16k. And Verdant pricing is even higher than ERS

So just wondering, why pricing can have big difference up to almost RM5k for same package. Is it because of different materials or device provide by each player?

But to be honest, the sales consultant in Verdant really experience and well train. Just that they don't absorb the charges when pay by card with instalments.
*
its like what is the difference between Proton and Honda.....

the quality of the solar panel, and inverter.

most people familiar with quality of car. not many familiar with solar panel and inverter. cool2.gif
billyboy
post May 7 2023, 02:44 PM

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QUOTE(Jingle91 @ May 7 2023, 01:34 PM)
Already change to inverter air con,  but imagine 4 air con open for 8 hours per day, each mth the bill will still be more than 200 (my air con from 1.5-2.5 horse power), plus other electrical, it is common for monthly bill of RM300-500 per mth for landed house.

Just wondering, nowadays can still find non inverter fridge in mkt? lol
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5* rated (by suruhanjaya tenaga) - i think - more important than inverter cool2.gif
billyboy
post May 7 2023, 02:45 PM

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QUOTE(Jingle91 @ May 7 2023, 01:30 PM)
My package is 16888 for 4kwp only, just done the site visit last week, now wait for them to confirm whether my roof got enought space to fit panel for 5kwp, the sales team now quote me 20500 including all installation cost. Pros of ERS is they absorb 3% merchant charges for credit card installment.

This year the Homedec is too big with too many redundant stalls, I only manage to check with ERS and Verdant, lol, can't find alpha that day.

Because my house is under strata title, so the cable from panel to DB must be concealed if it pass through exterior wall, now I am waiting ERS to provide me revise plan as they proposed to just fix the cable in pipe on wall surface. Not sure if they can conceal for me and repaint.
*
RM4k per kw ok lah. but you didn't give the spec.

its like myvi cost how much. later you find no spare tyre, no tool box etc. spec is important....
shadowblack
post May 7 2023, 02:48 PM

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Kindly check the inverter and solar panel brand then you can compare the price and quality. Some brand you can buy direct from supplier and ask contractor quote for installation
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post May 7 2023, 02:51 PM

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QUOTE(billyboy @ May 7 2023, 02:43 PM)
its like what is the difference between Proton and Honda.....

the quality of the solar panel, and inverter.

most people familiar with quality of car. not many familiar with solar panel and inverter.  cool2.gif
*
It would be great if it is so simple, haha, so far the three players I have checked, all give tier 1 board, all can produce minimum 500watt per panel with life expectancy more than 20 years. Alpha their board is even slightly better in terms of productivity despite their price is lowest.

Maybe the only difference is their inverter, tbh I also not really familiar with these.
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post May 7 2023, 02:55 PM

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QUOTE(billyboy @ May 7 2023, 02:45 PM)
RM4k per kw ok lah.  but you didn't give the spec.

its like myvi cost how much. later you find no spare tyre, no tool box etc.  spec is important....
*
Mind to shape on how to check the spec for solar system?
Oltromen Ripot
post May 7 2023, 03:15 PM

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guys, i'm considering to install solar, and the intent is to wipe as much but not necessarily in full. at least to get a consistent wipe rather than having excess capacity that is variable in the bill. the bill with aircond running full when there is humans inside, i expect to be around RM300 at least. i don't consider using batteries to avoid unnecessary replacement cost.

(1) what's the difference between 1-phase and 3-phase?

(2) if given that there is no difference in electrical usage pattern, is there savings when comparing 1-phase and 3-phase?

(3) do i need to change current electrical equipments if switch from 1-phase to 3-phase? (lighting, LED, smart sockets, fridges, ceiling fans, airconds, everything). do i need to re-cable the existing tri-colour inside walls?

(4) for solar, is it necessary to switch to 3-phase? or is there cut-off number in deciding between remaining on 1-phase or to upgrade to 3-phase?
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post May 7 2023, 03:22 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 03:15 PM)
guys, i'm considering to install solar, and the intent is to wipe as much but not necessarily in full. at least to get a consistent wipe rather than having excess capacity that is variable in the bill. the bill with aircond running full when there is humans inside, i expect to be around RM300 at least. i don't consider using batteries to avoid unnecessary replacement cost.

(1) what's the difference between 1-phase and 3-phase?

(2) if given that there is no difference in electrical usage pattern, is there savings when comparing 1-phase and 3-phase?

(3) do i need to change current electrical equipments if switch from 1-phase to 3-phase?  (lighting, LED, smart sockets, fridges, ceiling fans, airconds, everything). do i need to re-cable the existing tri-colour inside walls?

(4) for solar, is it necessary to switch to 3-phase? or is there cut-off number in deciding between remaining on 1-phase or to upgrade to 3-phase?
*
1.) The inverter supplies to 1 phase only or all 3 phase.

2.) No. But once NEM contract is over, you would want to offset the electricity on all 3 phases rather than just 1 phase.

3.) Err no . The fact that you're asking this means you don't even know whether your house is 1 phase or 3 phase?
Solar and whether the house is 1 phase or 3 phase is totally 2 different matter. They are not related.

4.) No not necessary. Again solar has nothing to do with whether your house is 1 phase or 3 phase.




billyboy
post May 7 2023, 04:01 PM

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QUOTE(Jingle91 @ May 7 2023, 02:51 PM)
It would be great if it is so simple, haha, so far the three players I have checked,  all give tier 1 board, all can produce minimum 500watt per panel with life expectancy more than 20 years. Alpha their board is even slightly better in terms of productivity despite their price is lowest.

Maybe the only difference is their inverter,  tbh I also not really familiar with these.
*
lol....1.5 cc engine of Proton = 1.5 cc engine of Honda ? console.gif

1) make sure its Grade 1 solar panel. within grade 1, there are also different tiers. Biggest today is Longi. Previously Trina. i think these are ok. QCell is in cyberjaya. also ok.

2) inverter. best is SMA (germany) but usually they provide PRC.

i lazy to type more.

share your quotation then maybe can comment more. cool2.gif
billyboy
post May 7 2023, 04:02 PM

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QUOTE(Jingle91 @ May 7 2023, 02:55 PM)
Mind to shape on how to check the spec for solar system?
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share your quotation lah cool2.gif
Oltromen Ripot
post May 7 2023, 04:13 PM

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QUOTE(Drian @ May 7 2023, 03:22 PM)
1.) The inverter supplies to 1 phase only or all 3 phase.

2.) No. But once NEM contract is over, you would want to offset the electricity on all 3 phases rather than just 1 phase.

3.) Err no . The fact that you're asking this means you don't even know whether your house is 1 phase or 3 phase?
    Solar and whether the house is 1 phase or 3 phase is totally 2 different matter. They are not related.

4.) No not necessary. Again solar has nothing to do with whether your house is 1 phase or 3 phase.
*
i know my house is 1-phase. I don't know what's the difference between 1-phase or 3-phase. I don't know what's the fuss with 1-phase or 3-phase that some forummers above are talking about, even to the extent that some posted having to switch to 3-phase at a bomb cost. THAT IS WHY I AM ASKING. exploratory stage.
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QUOTE(billyboy @ May 7 2023, 04:01 PM)
lol....1.5 cc engine of Proton = 1.5 cc engine of Honda ?  console.gif

1) make sure its Grade 1 solar panel. within grade 1, there are also different tiers. Biggest today is Longi. Previously Trina. i think these are ok. QCell is in cyberjaya. also ok.

2) inverter. best is SMA (germany) but usually they provide PRC.

i lazy to type more.

share your quotation then maybe can comment more.  cool2.gif
*
For ERS can choose from below option
panel,
1. Jinko
2. JA solar
3. Canadian solar

Inverter
1. APS
2. GoodWe
3. Sungrow
4. SMA


For Verdant
Panel
1. JA Solar
2. Trina solar

Inverter
1. Solis 3p10k







ceras
post May 7 2023, 04:25 PM

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Govt want to control solar panel supply to jack up price and feed cronies. Otherwise, prices could be easily lower by 50%. Why don't allow open market sourcing instead of restricting and over regulating supply? Our Green Minister should look into this.
Oltromen Ripot
post May 7 2023, 04:35 PM

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QUOTE(ceras @ May 7 2023, 04:25 PM)
Govt want to control solar panel supply to jack up price and feed cronies. Otherwise, prices could be easily lower by 50%. Why don't allow open market sourcing instead of restricting and over regulating supply?  Our Green Minister should look into this.
*
🤦
Maybe because it's electricity-related, attached to national grid.
not because of crony but because of safety and regulations.
You yourself wouldn't want to get shoddy products installed for something dangerous as this.
Drian
post May 7 2023, 04:43 PM

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QUOTE(ceras @ May 7 2023, 04:25 PM)
Govt want to control solar panel supply to jack up price and feed cronies. Otherwise, prices could be easily lower by 50%. Why don't allow open market sourcing instead of restricting and over regulating supply?  Our Green Minister should look into this.
*
How does govt control solar panel supply? Did the government say you have to buy from a particular vendor?

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post May 7 2023, 04:50 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 04:13 PM)
i know my house is 1-phase. I don't know what's the difference between 1-phase or 3-phase. I don't know what's the fuss with 1-phase or 3-phase that some forummers above are talking about, even to the extent that some posted having to switch to 3-phase at a bomb cost. THAT IS WHY I AM ASKING. exploratory stage.
*
The difference is you are only limited to 4kw inverter for 1 phase.

3 phases up to 10kw.





Oltromen Ripot
post May 7 2023, 05:03 PM

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QUOTE(Drian @ May 7 2023, 04:50 PM)
The difference is you are only limited to 4kw inverter for 1 phase.

3 phases up to 10kw.
*
under NEM, does that mean

(1) if i am not at home in weekdays, it keeps on generating excess into grid? or is it only for real-time immediate usage in same premise only?

(2) if it is excess into grid, is there an amount as rebate?

(3) if got rebate, can it offset when i use from grid at night or on weekends?

billyboy
post May 7 2023, 05:31 PM

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QUOTE(Jingle91 @ May 7 2023, 04:15 PM)
For ERS can choose from below option
panel,
1. Jinko
2. JA solar
3. Canadian solar

Inverter
1. APS
2. GoodWe
3. Sungrow
4. SMA
For Verdant
Panel
1. JA Solar
2. Trina solar

Inverter
1. Solis 3p10k
*
Jinko > JA > Canadian Solar

SMA #1, goodwe reasonable. make sure got > 10 year warranty

price also different rclxms.gif
billyboy
post May 7 2023, 05:34 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 05:03 PM)
under NEM, does that mean

(1) if i am not at home in weekdays, it keeps on generating excess into grid? or is it only for real-time immediate usage in same premise only?

(2) if it is excess into grid, is there an amount as rebate?

(3) if got rebate, can it offset when i use from grid at night or on weekends?
*
1. TNB become your 'virtual' battery. If you don't use, its sent to the grid, and the meter records to your benefit. When you use, its taken out from your 'account'. If you are not at home, the meter will just go up correspondingly.

2. Its not a rebate. Its a set-off, or a net meter. TNB is your 'virtual battery' or 'virtual bank'. You can put in when the sun is shining brightly, and you can take out when its dark.

3. See (2) above.
Oltromen Ripot
post May 7 2023, 07:25 PM

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QUOTE(billyboy @ May 7 2023, 05:34 PM)
1. TNB become your 'virtual' battery. If you don't use, its sent to the grid, and the meter records to your benefit.  When you use, its taken out from your 'account'.  If you are not at home, the meter will just go up correspondingly.

2.  Its not a rebate.  Its a set-off, or a net meter.  TNB is your 'virtual battery' or 'virtual bank'. You can put in when the sun is shining brightly, and you can take out when its dark.

3.  See (2) above.
*
so the "currency" is kW.

trying to understand. so for a month period.
(1) if usage > generated, i will have to pay for the excess "withdrawal". correct?
(2) if generated > usage, i don't have to pay. the excess "deposit" won't become monetary, but carry forward to contra in the future months. correct?
Oltromen Ripot
post May 7 2023, 07:29 PM

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i understand that the panel itself is definitely outdoor ( laugh.gif )

but inverter and/or everything else, is it required to be indoor? or required to be outdoor? or is it "up to owner"/site-specific?

the inverter is waterproof?
ICDeadPeople
post May 7 2023, 07:50 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 07:29 PM)
i understand that the panel itself is definitely outdoor ( laugh.gif )

but inverter and/or everything else, is it required to be indoor? or required to be outdoor? or is it "up to owner"/site-specific?

the inverter is waterproof?
*
Not waterproof. Need covered area at least.
Mine inside the house.
Oltromen Ripot
post May 7 2023, 07:55 PM

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QUOTE(ICDeadPeople @ May 7 2023, 07:50 PM)
Not waterproof. Need covered area at least.
Mine inside the house.
*
Does it need frequent? periodical maintenance access?

If above ceiling?

Or somewhere very high? Like the open airspace inside bathroom that goes up about 2 storey high?

Is it safe if just install outside (steel rack like IT server?) but still under roof? Or it is a target for vandals or thieves?

This post has been edited by Oltromen Ripot: May 7 2023, 07:57 PM
billyboy
post May 7 2023, 11:21 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 07:25 PM)
so the "currency" is kW.

[its kw and kwh - kw indicates capacity eg engine size, kwh indicates the output / yield eg speed.]

trying to understand. so for a month period.
(1) if usage > generated, i will have to pay for the excess "withdrawal". correct? [correct]
(2) if generated > usage, i don't have to pay. the excess "deposit" won't become monetary, but carry forward to contra in the future months. correct? [yes]
*
billyboy
post May 7 2023, 11:23 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 07:55 PM)
Does it need frequent? periodical maintenance access?

If above ceiling?

Or somewhere very high? Like the open airspace inside bathroom that goes up about 2 storey high?

Is it safe if just install outside (steel rack like IT server?) but still under roof? Or it is a target for vandals or thieves?
*
on top of your roof is best to avoid shading.


minimal maintenance for solar panel. get a worker to climb up, use a mop, and clean the panel once a year. a lot of people don't bother as well.

more important is actually inverter. no direct sunlight. good ventilation. make sure fan has clear access. real story; a bird built a nest on an air duct of an inverter. it blew within a few weeks after that. cool2.gif
Oltromen Ripot
post May 8 2023, 12:32 AM

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QUOTE(billyboy @ May 7 2023, 11:23 PM)
on top of your roof is best to avoid shading.
minimal maintenance for solar panel.  get a worker to climb up, use a mop, and clean the panel once a year. a lot of people don't bother as well.

more important is actually inverter. no direct sunlight. good ventilation. make sure fan has clear access. real story; a bird built a nest on an air duct of an inverter. it blew within a few weeks after that.  cool2.gif
*
ya, i mean the placement of inverter et al.
of course the solar panel itself is necessary to be exposed to sunlight 😅 and optimally that is on the roof slanted southward.

the inverter. is it hot during sunlight operation? still in use after sunlight?
is it huge? if caged right under ceiling level of porch i.e. still visible to discerning eyes from outside gate, is it a popular target for vandals and thieves?
imin
post May 8 2023, 01:00 AM

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parking
billyboy
post May 8 2023, 07:08 AM

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QUOTE(Oltromen Ripot @ May 8 2023, 12:32 AM)
ya, i mean the placement of inverter et al.
of course the solar panel itself is necessary to be exposed to sunlight 😅 and optimally that is on the roof slanted southward.

the inverter. is it hot during sunlight operation? still in use after sunlight?
is it huge? if caged right under ceiling level of porch i.e. still visible to discerning eyes from outside gate, is it a popular target for vandals and thieves?
*
yes, its hot during operation. the brighter the sun, the hotter it gets. some use an external fan to blow on it to reduce the heat.

rule of thumb; electronics hot is bad. cool it down.

some even over size their inverter. for example a 10kw solar panel system, but use 12kw inverter. this will ensure that your inverter really last its designated lifetime (8 to 12 years ?). nowadays just make sure got warranty for that time period, but really hassle to replace as it might take one to two months to replace (if lucky). heard there is inverter shortage also. good design and take good care of inverter better. so....make sure, good ventilation, cool place with no direct sunlight. no comment about vandals / thieves but the resale value is low.
ICDeadPeople
post May 8 2023, 07:40 AM

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QUOTE(Oltromen Ripot @ May 7 2023, 07:55 PM)
Does it need frequent? periodical maintenance access?

If above ceiling?

Or somewhere very high? Like the open airspace inside bathroom that goes up about 2 storey high?

Is it safe if just install outside (steel rack like IT server?) but still under roof? Or it is a target for vandals or thieves?
*
Inverter no need maintenance. Got checked by the contractor once so far (yearly checking). Basically its like your DB box, but bigger (~1.5ft x 2.5ft). During operation can be slightly warmer. So need open air for ventilation. Outside as long as dry should be fine.
bengm2019
post May 8 2023, 07:52 AM

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QUOTE(empire @ Nov 9 2020, 01:12 PM)
SOLAR PANELS deteriorate after a few years. Dont expect the solar panels to be as efficient as it is like on the first day after 4-5 years.
The Battery also deteriorates after a few years...and they wont be able to hold the charge long.

It is an expensive route to take.  Dont bother.
*
No big deal.... Solar panels degrade around 1% a year. They have a lifespan of 25-30yrs.
sparketh
post May 8 2023, 07:52 AM

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I heard nowadays for micro inverters. That is every panel has its own inverter. This solves the ild problem where if one panel is covered by leaves so all the output of ur other panels is as low as the panel that is covered. It’s increase the cost though though
Jedi3815
post May 8 2023, 10:04 AM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
*
im not an expert, but i have looked into it, and decided not to proceed because of...i is poor.

1) if your house bill is above RM200 monthly, solar panel would really help, and is beneficial for you. if your bill is less, you wont see the return until AFTER the panels are dead, so forget it.

2) cost to install can be as low as 20k and as high as 50k. Say your bill is rm500 a month, meaning you need XX amount of kW capacity to be installed, hence more cost etc.

3) Since your house is linked to TNB, you need their "ok" for you to install and sell it back to them. hence they offer their own Solar Panel to you at a price/arrangement. they pay for the "project cost" and you repay them in X years, and your bill went from Rm500 a month to RM 10 a month. gitu la.

4) if you decide not to sell back to the TNB, you spend (say) RM50k, then your bill went from RM500 to RM10 a month, plus during rainy day you take some from TNB, your return of investment might be longer (15 years gitu). So better get TNB's "ok" for you to sell some when you are away from home (working) and generate electricity to be sold to the grid.

5) Now you might be thinking "but bro, aku kerja time ada matahari, kluar rumah time subuh, balik time maghrib, bila nak enjoy matahari punya hasil?" haaaaaa, thats the generating part, your spend RM500 on your bill, but sell RM490....if you dont want to sell to grid, spend a little more for a battery. but get this....MAHAL NAK MAMPOS. whatever you are spending on your solar panel, double that if you want to include battery storage.

Conclusion : you need TNB's ok, which is hard now because ada limit of seats, butttttttt.....if you use their subsidiary, they can give quotation and plan for you. Set aside RM50k max.

razr_sped
post May 8 2023, 10:33 AM

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QUOTE(Jedi3815 @ May 8 2023, 10:04 AM)
im not an expert, but i have looked into it, and decided not to proceed because of...i is poor.

1) if your house bill is above RM200 monthly, solar panel would really help, and is beneficial for you. if your bill is less, you wont see the return until AFTER the panels are dead, so forget it.

2) cost to install can be as low as 20k and as high as 50k. Say your bill is rm500 a month, meaning you need XX amount of kW capacity to be installed, hence more cost etc.

3) Since your house is linked to TNB, you need their "ok" for you to install and sell it back to them. hence they offer their own Solar Panel to you at a price/arrangement. they pay for the "project cost" and you repay them in X years, and your bill went from Rm500 a month to RM 10 a month. gitu la.

4) if you decide not to sell back to the TNB, you spend (say) RM50k, then your bill went from RM500 to RM10 a month, plus during rainy day you take some from TNB, your return of investment might be longer (15 years gitu). So better get TNB's "ok" for you to sell some when you are away from home (working) and generate electricity to be sold to the grid.

5) Now you might be thinking "but bro, aku kerja time ada matahari, kluar rumah time subuh, balik time maghrib, bila nak enjoy matahari punya hasil?" haaaaaa, thats the generating part, your spend RM500 on your bill, but sell RM490....if you dont want to sell to grid, spend a little more for a battery. but get this....MAHAL NAK MAMPOS. whatever you are spending on your solar panel, double that if you want to include battery storage.

Conclusion : you need TNB's ok, which is hard now because ada limit of seats, butttttttt.....if you use their subsidiary, they can give quotation and plan for you. Set aside RM50k max.
*
you only need tnb permission if you were to connected to grid which is most of the case when you goes in contract with solar provider. but if you are DIY for farm behind the house then that is not needed as it runs on independent circuit then the grid. there is no sell back anymore as FiT is not active anymore only NEM now. All solar providers will handle the Seda application for you.

i run with VA Solar on NEM3, under NEM contract battery is not allowed and max 12kWp for residential.
i had mine for 29k with 7.6kWp (16 jinko panel) and 9kWp huawei inverter, monthly average usage if i dont travel and dont wfh is around 700kW (280kW from phev and 400kW from household), this is with careful control on AC usage.
the goal is to reduce usage of the unsubsidized rate aka >300kW usage, and now with hot weather i dont need to control much compared to previous.

This post has been edited by razr_sped: May 8 2023, 10:34 AM
Drian
post May 8 2023, 10:37 AM

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QUOTE(Oltromen Ripot @ May 7 2023, 05:03 PM)
under NEM, does that mean

(1) if i am not at home in weekdays, it keeps on generating excess into grid? or is it only for real-time immediate usage in same premise only?

(2) if it is excess into grid, is there an amount as rebate?

(3) if got rebate, can it offset when i use from grid at night or on weekends?
*
1.) it will generate to the grid and you will gain credits
2.) not rebate, credit.
3.) Yes.


Jedi3815
post May 8 2023, 10:39 AM

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QUOTE(razr_sped @ May 8 2023, 10:33 AM)
you only need tnb permission if you were to connected to grid which is most of the case when you goes in contract with solar provider. but if you are DIY for farm behind the house then that is not needed as it runs on independent circuit then the grid. there is no sell back anymore as FiT is not active anymore only NEM now. All solar providers will handle the Seda application for you.

i run with VA Solar on NEM3, under NEM contract battery is not allowed and max 12kWp for residential.
i had mine for 29k with 7.6kWp (16 jinko panel) and 9kWp huawei inverter, monthly average usage if i dont travel and dont wfh is around 700kW (280kW from phev and 400kW from household), this is with careful control on AC usage.
the goal is to reduce usage of the unsubsidized rate aka >300kW usage, and now with hot weather i dont need to control much compared to previous.
*
Understood, but what are the return value (in terms of ringgit) from the purchase may i ask?

I've run the numbers if i do a stand alone, (based on my bill), i will only see the positives from the saving after 20 years, since my electricity bill is less than rm150 monthly. so its not beneficial for me, unless TNB yg letak (pay for me) and they give me some electricity for free, and the rest they sell to the grid. but this is the real world, nothing is free. so i dont do it.

razr_sped
post May 8 2023, 10:51 AM

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QUOTE(Jedi3815 @ May 8 2023, 10:39 AM)
Understood, but what are the return value (in terms of ringgit) from the purchase may i ask?

I've run the numbers if i do a stand alone, (based on my bill), i will only see the positives from the saving after 20 years, since my electricity bill is less than rm150 monthly. so its not beneficial for me, unless TNB yg letak (pay for me) and they give me some electricity for free, and the rest they sell to the grid. but this is the real world, nothing is free. so i dont do it.
*
yes ur numbers are right, on rm150 its not really worth it; cause like my objective is to lower till the subsidize bracket which is the first 300 units.
using my current usage bracket of 700kW, it should run on RM290. the return will be more of 7yrs.

Jedi3815
post May 8 2023, 11:56 AM

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QUOTE(razr_sped @ May 8 2023, 10:51 AM)
yes ur numbers are right, on rm150 its not really worth it; cause like my objective is to lower till the subsidize bracket which is the first 300 units.
using my current usage bracket of 700kW, it should run on RM290. the return will be more of 7yrs.
*
in a perfect world that i want to live in.

Utilities pay you by way of giving free electricity, if they can use your rooftops. They dont pay lease, they own the solar panels, if they want to uninstall they can. We get free electricity and green. The can sell to industrial and commercial customers, including selling the RE certificate that now everyone wants to buy to say "i is green company".

But then again, this is the real world. its not "My little pony" world, where there are rainbows and happiness everywhere. Sigh.
Jingle91
post May 8 2023, 12:39 PM

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QUOTE(billyboy @ May 7 2023, 05:31 PM)
Jinko > JA > Canadian Solar

SMA #1, goodwe reasonable. make sure got > 10 year warranty

price also different  rclxms.gif
*
Thanks mate, you are right, SMA cost 20% more, and I ask ERS to give me jinko board plus Goodwe.
They agreed this morning.
Jingle91
post May 8 2023, 12:52 PM

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QUOTE(Oltromen Ripot @ May 7 2023, 07:25 PM)
so the "currency" is kW.

trying to understand. so for a month period.
(1) if usage > generated, i will have to pay for the excess "withdrawal". correct?
(2) if generated > usage, i don't have to pay. the excess "deposit" won't become monetary, but carry forward to contra in the future months. correct?
*
Just to further highlight, the carry forward portion can only last for 12 mths, if you never utilise it within this period, it will be forfeited. So best is to use your 3 mths bills to come out with average amt, then ask them to advise on ideal number of panel, so you won't underutilise the capacity by paying extra.

imnotabot
post May 8 2023, 12:55 PM

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Just wondering, if I buy a house that claims to be "ready for solar system installation" (e.g. Serenia Anisa), will the cost to install become cheaper? How much cheaper?
Is there something I need to check for when signing S&P to ensure they are not conning me?

This post has been edited by imnotabot: May 8 2023, 12:56 PM
empire
post May 8 2023, 12:55 PM

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QUOTE(bengm2019 @ May 8 2023, 07:52 AM)
No big deal.... Solar panels degrade around 1% a year. They have a lifespan of 25-30yrs.
*
1% a year? hehehe.... ok la little man. if you say so.
Oltromen Ripot
post May 8 2023, 12:58 PM

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QUOTE(Jingle91 @ May 8 2023, 12:52 PM)
Just to further highlight, the carry forward portion can only last for 12 mths, if you never utilise it within this period, it will be forfeited. So best is to use your 3 mths bills to come out with average amt, then ask them to advise on ideal number of panel, so you won't underutilise the capacity by paying extra.
*
somebody mentioned 1-phase can only up to 4kW.
I regret that my wife didn't consult me before signing up TNB supply; else I would have advised to go 3-phase right from start.

anyway, if solar can chip off a portion of bill, that is already welcomed. the bill is variable, so to cover with preset target like must wipe 100% is over-optimistic and wasting if eventually the usage ended up below what I am generating.


Oltromen Ripot
post May 8 2023, 01:02 PM

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QUOTE(Jingle91 @ May 8 2023, 12:52 PM)
Just to further highlight, the carry forward portion can only last for 12 mths, if you never utilise it within this period, it will be forfeited. So best is to use your 3 mths bills to come out with average amt, then ask them to advise on ideal number of panel, so you won't underutilise the capacity by paying extra.
*
just to be clear; do you mean forfeit in a rolling 12mth fashion?
i.e january's credit will forfeit next january, june's credit forfeits next june?

or is it hard 12mth like end-of-contract from a starting date?

or is it whatever credit outstanding at the 13mth will forfeit and all credit restarts collecting again from scratch for the next 12mth?
Jingle91
post May 8 2023, 01:27 PM

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QUOTE(Oltromen Ripot @ May 8 2023, 01:02 PM)
just to be clear; do you mean forfeit in a rolling 12mth fashion?
i.e january's credit will forfeit next january, june's credit forfeits next june?

or is it hard 12mth like end-of-contract from a starting date?

or is it whatever credit outstanding at the 13mth will forfeit and all credit restarts collecting again from scratch for the next 12mth?
*
Based on the example I got, if your panel continously generate extra 100kwh each mth, mean you install more than what you can use, the first mth balance will be forfeited on 13 mth, then on 14th, your balance recorded in 2th mth will be forfeited.

But NEM only last for 10 years, so the sales person only said it have to wait until that time only can know what will be new arrangement, maybe the knock off will start from cheapest tariff instead of highest tariffs under NEM 3.0. So best is to follow their adviser advice on number of board within your usage.

Maybe other experience user can enlighten on this.


Oltromen Ripot
post May 8 2023, 01:28 PM

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QUOTE(Jingle91 @ May 8 2023, 01:27 PM)
Based on the example I got,  if your panel continously generate extra 100kwh each mth, mean you install more than what you can use, the first mth balance will be forfeited on 13 mth, then on 14th, your balance recorded in 2th mth will be forfeited.

But NEM only last for 10 years, so the sales person only said it have to wait until that time only can know what will be new arrangement, maybe the knock off will start from cheapest tariff instead of highest tariffs under NEM 3.0. So best is to follow their adviser advice on number of board within your usage.

Maybe other experience user can enlighten on this.
*
oh pkay; rolling 12mth.
dah macam loyalty card pulak 😅
Jingle91
post May 8 2023, 01:43 PM

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QUOTE(imnotabot @ May 8 2023, 12:55 PM)
Just wondering, if I buy a house that claims to be "ready for solar system installation" (e.g. Serenia Anisa), will the cost to install become cheaper? How much cheaper?
Is there something I need to check for when signing S&P to ensure they are not conning me?
*
If your house is strata title, the installation cost will be higher, because management office don't allow to install anything on exterior wall surface. Like mine, the DB is at downstairs storeroom, so the cable have to be pulled from roof top to the rear exterior wall and then all the way go into the kitchen ceiling, and continue pull to my DB. So from rooftop to kitchen's exterior wall, I have to ask my own contractor to hack and conceal the cable and repaint the wall surface, it will cost me about 1k, the solar company can do that but usually will cost more. Minor hacking inside the house, solar installer can cover, but I need to do plaster ceiling to cover it, but anyway I will still do plaster ceiling for whole house so this is not counted.
So if there is no restriction on your exterior wall, you don't need to pay anything. They will put cable in pvc pipe stick on your wall surface.

If your house got sub DB on topper floor, then it will be easier, they can just pull the cable under roof tile go into your house connect to sub DB on upper floor, of course you need to pay if you wan conceal the cable inside your house.

Another thing is the 10mm cable from DB to car porch for EV charger. I haven't received quotation for this.

So it would be great if Sime Darby can conceal all cable inside wall for you with ready points, the solar installer can just come to install, save alot of effort, maybe can save 1 to 1.5k for conceal cost. Just not sure if the solar company can give further discount for hacking and cable cost, since it is included in package

This post has been edited by Jingle91: May 8 2023, 01:52 PM
imnotabot
post May 8 2023, 02:10 PM

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QUOTE(Jingle91 @ May 8 2023, 01:43 PM)
If your house is strata title, the installation cost will be higher, because management office don't allow to install anything on exterior wall surface. Like mine, the DB is at downstairs storeroom, so the cable have to be pulled from roof top to the rear exterior wall and then all the way go into the kitchen ceiling, and continue pull to my DB. So from rooftop to kitchen's exterior wall, I have to ask my own contractor to hack and conceal the cable and repaint the wall surface, it will cost me about 1k, the solar company can do that but usually will cost more. Minor hacking inside the house, solar installer can cover, but I need to do plaster ceiling to cover it, but anyway I will still do plaster ceiling for whole house so this is not counted.
So if there is no restriction on your exterior wall, you don't need to pay anything. They will put cable in pvc pipe stick on your wall surface.

If your house got sub DB on topper floor, then it will be easier, they can just pull the cable under roof tile go into your house connect to sub DB on upper floor, of course you need to pay if you wan conceal the cable inside your house.

Another thing is the 10mm cable from DB to car porch for EV charger. I haven't received quotation for this.

So it would be great if Sime Darby can conceal all cable inside wall for you with ready points, the solar installer can just come to install, save alot of effort, maybe can save 1 to 1.5k for conceal cost. Just not sure if the solar company can give further discount for hacking and cable cost, since it is included in package
*
I see, so the installation cost is just to pull cable from DB to roof top, installing the solar panels in place, and concealing the cable. I thought it's more complex than that.
The house is individual title, so shouldn't have an issue to install the solar panel itself.
bee88
post May 8 2023, 02:13 PM

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I have installed solar panel and I have studied their efficiency. Every system has different efficiency. If you plan to install, make sure to study the specification. Lots of time the companies are hiding something from their customers. Can pm me if you need any advice based on my usage experience.
soul78
post May 8 2023, 02:16 PM

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you only install when you're reaching 50 years...
too early panels wont last efficiently till your dead...

also if possible to hold to buy in future better panels is coming out... higher efficiency...
bee88
post May 8 2023, 02:17 PM

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QUOTE(Oltromen Ripot @ May 8 2023, 01:28 PM)
oh pkay; rolling 12mth.
dah macam loyalty card pulak 😅
*
Actually is good. My saving is around 600 per month after installation. Most important is to get the correct system and not based on what the company advertise.
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post May 8 2023, 02:17 PM

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QUOTE(bee88 @ May 8 2023, 02:13 PM)
I have installed solar panel and I have studied their efficiency. Every system has different efficiency. If you plan to install, make sure to study the specification. Lots of time the companies are hiding something from their customers. Can pm me if you need any advice based on my usage experience.
*
Will the investment gonna be worth it over paying for TNB's tariff for residential property throughout it's entire useful life including the panels and the inverters?

Weather is getting bloody hot these days.
bee88
post May 8 2023, 02:18 PM

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QUOTE(blacktubi @ May 8 2023, 02:17 PM)
Will the investment gonna be worth it over paying for TNB's tariff for residential property throughout it's entire useful life including the panels and the inverters?

Weather is getting bloody hot these days.
*
Yes.

Roi is nearly 20% pa

It’s like rolling Tnb bill money to pay for system that can generate free electricity for 10 years

First 5 years money pay to Tnb become money pay for solar.

Next 5 years free electricity.
bee88
post May 8 2023, 02:22 PM

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QUOTE(Oltromen Ripot @ May 8 2023, 12:58 PM)
somebody mentioned 1-phase can only up to 4kW.
I regret that my wife didn't consult me before signing up TNB supply; else I would have advised to go 3-phase right from start.

anyway, if solar can chip off a portion of bill, that is already welcomed. the bill is variable, so to cover with preset target like must wipe 100% is over-optimistic and wasting if eventually the usage ended up below what I am generating.
*
Can go up to 6.06kwp.
billyboy
post May 8 2023, 02:24 PM

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QUOTE(Jingle91 @ May 8 2023, 12:39 PM)
Thanks mate, you are right, SMA cost 20% more, and I ask ERS to give me jinko board plus Goodwe.
They agreed this morning.
*
sounds decent equipment. make sure they don't undersize the inverter....sometimes installer say 8kw solar panel, but inverter 6kw cukup due to peak load spreading.

sure ok until warranty over, then sure the inverter kaput before due date to over-load.

up to you if want to take risk cool2.gif
bee88
post May 8 2023, 02:26 PM

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QUOTE(billyboy @ May 8 2023, 02:24 PM)
sounds decent equipment. make sure they don't undersize the inverter....sometimes installer say 8kw solar panel, but inverter 6kw cukup due to peak load spreading.

sure ok until warranty over, then sure the inverter kaput before due date to over-load.

up to you if want to take risk  cool2.gif
*
This is one problem. Not only that they don’t tell you how the production can be affected by several factors.
bee88
post May 8 2023, 02:28 PM

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QUOTE(Jingle91 @ May 8 2023, 12:39 PM)
Thanks mate, you are right, SMA cost 20% more, and I ask ERS to give me jinko board plus Goodwe.
They agreed this morning.
*
Actually , from my understanding, this looks like string inverter. For me it’s bad news.
narf03
post May 8 2023, 02:29 PM

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Which fellow dig out this long dead thread? TS asked this like 3 years ago, should check if TS still alive first
billyboy
post May 8 2023, 02:36 PM

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QUOTE(bee88 @ May 8 2023, 02:28 PM)
Actually , from my understanding, this looks like string inverter. For me it’s bad news.
*
why ? you thinking of micro-inverter ? cool2.gif
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post May 8 2023, 02:36 PM

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QUOTE(billyboy @ May 8 2023, 02:36 PM)
why ? you thinking of micro-inverter ? cool2.gif
*
Yes. Same price with string but more efficient.
etan26
post May 8 2023, 02:48 PM

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QUOTE(Jingle91 @ May 8 2023, 12:39 PM)
Thanks mate, you are right, SMA cost 20% more, and I ask ERS to give me jinko board plus Goodwe.
They agreed this morning.
*
Mine also from ERS, almost 2y2m installed already save me RM19.6k. My cost was RM38k back then, extended warranty on my inverter too. Good buy I totally agreed for heavy users.

This post has been edited by etan26: May 8 2023, 02:49 PM
bee88
post May 8 2023, 03:04 PM

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QUOTE(etan26 @ May 8 2023, 02:48 PM)
Mine also from ERS, almost 2y2m installed already save me RM19.6k. My cost was RM38k back then, extended warranty on my inverter too. Good buy I totally agreed for heavy users.
*
Wah. How much is your bill before and after on average. How many kwp installed?
etan26
post May 8 2023, 03:07 PM

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QUOTE(bee88 @ May 8 2023, 03:04 PM)
Wah. How much is your bill before and after on average. How many kwp installed?
*
RM900+ before and 200-300+ after. Installed a 11.7kw system.
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QUOTE(bee88 @ May 8 2023, 02:36 PM)
Yes. Same price with string but more efficient.
*
when you say efficient, its with regards to shading......right ?

personally, i prefer string inverter for maintenance and yield efficiency. Replacing a string inverter is also heck a lot easier.

have you also calculated the RM per kw for string inverter vs micro inverter ? huge difference.....micro is way more expensive (on a per kw basis).

so......have to provide full picture lah... cool2.gif
bengm2019
post May 12 2023, 07:43 AM

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QUOTE(empire @ May 8 2023, 12:55 PM)
1% a year? hehehe.... ok la little man. if you say so.
*
Yes, many companies now can even give 25yrs warranty on their panels...
bengm2019
post May 12 2023, 07:46 AM

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QUOTE(bee88 @ May 8 2023, 02:36 PM)
Yes. Same price with string but more efficient.
*
Micro inverters are good for small number of panels... Basically households.

For large number of panels (like solar farm), still need to use string inverters.
bengm2019
post May 12 2023, 07:48 AM

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QUOTE(soul78 @ May 8 2023, 02:16 PM)
you only install when you're reaching 50 years...
too early panels wont last efficiently till your dead...

also if possible to hold to buy in future better panels is coming out... higher efficiency...
*
You can replace the panels after 25-30yrs.
greaterheights
post May 18 2023, 12:46 PM

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Any review (sorry if done ealier) of the system, cost, workmanship etc say by GSPARX and others?

Also any company offering solar panels together with wall chargers ( for EV cars)?
meors
post May 21 2023, 09:27 PM

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Sols Energy, backed by PETRONAS Gentari - anyone used?
pisces88
post May 21 2023, 09:42 PM

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anyone know whats the budget to install panels for a house with 1k tnb bill monthly?
Oltromen Ripot
post May 24 2023, 09:23 AM

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If NEM3 for 1-phase residence is 4kWh;

does that mean i can only install maximum panels as much as 4 kWh and not more?

or does it mean i can install more than 4kWh as i can afford, BUT, for purpose of NEM3 i can only export max 4kWh to grid?
Quanta
post May 30 2023, 09:26 AM

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QUOTE(Oltromen Ripot @ May 24 2023, 09:23 AM)
If NEM3 for 1-phase residence is 4kWh;

does that mean i can only install maximum panels as much as 4 kWh and not more?

or does it mean i can install more than 4kWh as i can afford, BUT, for purpose of NEM3 i can only export max 4kWh to grid?
*
This one "BUT, for purpose of NEM3 i can only export max 4kWh to grid" ..

U can install more panels, but during day time U need to utilise it to avoid noise from TNB.
josh5671
post May 30 2023, 01:13 PM

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i think for myself. TNB bill on 50~70 (on old meter), new meter probably will go 100~120?

maybe not worth to get basic solar ?
house type is roofed corner lot terrace.
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post Jun 3 2023, 06:40 PM

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QUOTE(Oltromen Ripot @ May 24 2023, 09:23 AM)
If NEM3 for 1-phase residence is 4kWh;

does that mean i can only install maximum panels as much as 4 kWh and not more?

or does it mean i can install more than 4kWh as i can afford, BUT, for purpose of NEM3 i can only export max 4kWh to grid?
*
Yes. The max for Single Phase is 4kwh...You need more then upgrade to 3 phase. But before do that check what your root can max can install the Solar Panel.


Jo_da48
post Jun 3 2023, 06:44 PM

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QUOTE(meors @ May 21 2023, 09:27 PM)
Sols Energy, backed by PETRONAS Gentari - anyone used?
*
yah...i just endorsed it.
Price high compared to rest but at least have a big company behind to support and also the package offer during Raya time.
GSPARX (TNB) didn't care not even entertain when i follow up with email.
Other companies more cheaper compared above two, but risk is there lol


Jo_da48
post Jun 3 2023, 06:55 PM

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QUOTE(pisces88 @ May 21 2023, 09:42 PM)
anyone know whats the budget to install panels for a house with 1k tnb bill monthly?
*
shall be more than 40K. But it depend what typ of house you leaving, roof size ...
You can use this to check out
https://services.seda.gov.my/nemcalculator/#/calculator

Example: My roof max are 9KWp but take bit of risk as may over the roof side...so i just go for 8kwp

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post Jun 19 2023, 11:43 AM

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https://soyacincau.com/2023/06/15/gentari-r...t-fee-required/

Not sure how they calculated the savings.

my calculation (current)


user posted image

with RM650 bill (assume I additional power is used during daytime, nighttime same power consumption)Attached File  sample_of_Home_Solar_Subscription_contract_summary_2.pdf ( 1.68mb ) Number of downloads: 77


user posted image
merchant9
post Sep 6 2023, 06:38 PM

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Do you guys know what panel dimension and wattage does ERS uses? Can you share what company, panel, sizes, wattage and kWp do you use?

This post has been edited by merchant9: Sep 6 2023, 06:46 PM
merchant9
post Sep 6 2023, 06:45 PM

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QUOTE(etan26 @ May 8 2023, 03:07 PM)
RM900+ before and 200-300+ after. Installed a 11.7kw system.
*
Can you share what type of panel is used? How many W? How many pieces? Dimension?
etan26
post Sep 6 2023, 08:49 PM

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QUOTE(merchant9 @ Sep 6 2023, 06:45 PM)
Can you share what type of panel is used? How many W? How many pieces? Dimension?
*
CS3W-450MS Canadian Solar 26 pcs
merchant9
post Sep 6 2023, 10:14 PM

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QUOTE(etan26 @ Sep 6 2023, 08:49 PM)
CS3W-450MS Canadian Solar 26 pcs
*
Thanks for sharing.

I'm in a dilemma on which solar companies to go with.
Company A offers 11.80kWp for RM38k
Company B offers 13.12kWp for RM47k

Monthly bill around RM850 or 1650kWh. While option A is cheaper but savings of RM650 monthly isnt a lot and with a small size (kWp), doesnt feel future proofing if tariff increases.

Advise?

This post has been edited by merchant9: Sep 7 2023, 06:16 AM
etan26
post Sep 7 2023, 08:46 AM

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QUOTE(merchant9 @ Sep 6 2023, 10:14 PM)
Thanks for sharing.

I'm in a dilemma on which solar companies to go with.
Company A offers 11.80kWp for RM38k
Company B offers 13.12kWp for RM47k

Monthly bill around RM850 or 1650kWh. While option A is cheaper but savings of RM650 monthly isnt a lot and with a small size (kWp), doesnt feel future proofing if tariff increases.

Advise?
*
If you are a heavy user like me, go for 13.12Kwp ..... At my time max was 11.7kwp else I would have gone higher.

This post has been edited by etan26: Sep 7 2023, 08:50 AM
Jo_da48
post Sep 9 2023, 04:59 PM

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QUOTE(merchant9 @ Sep 6 2023, 06:38 PM)
Do you guys know what panel dimension and wattage does ERS uses? Can you share what company, panel, sizes, wattage and kWp do you use?
*
it depemd on the PV panel that the vendor using and also the roof size that your house can fill to.

Drian
post Sep 9 2023, 05:15 PM

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QUOTE(merchant9 @ Sep 6 2023, 10:14 PM)
Thanks for sharing.

I'm in a dilemma on which solar companies to go with.
Company A offers 11.80kWp for RM38k
Company B offers 13.12kWp for RM47k

Monthly bill around RM850 or 1650kWh. While option A is cheaper but savings of RM650 monthly isnt a lot and with a small size (kWp), doesnt feel future proofing if tariff increases.

Advise?
*
Your aim should be to reduce consumption to roughly 300 kwhr .
Based on 3.5 sun hour/ day average@30 days
1300/3.5/30= 12.38kw

However some companies use single phase inverter to reduce cost.
Do you know why company B is charging 9k extra for only 1.3kw increase?
Jo_da48
post Sep 9 2023, 05:23 PM

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QUOTE(merchant9 @ Sep 6 2023, 10:14 PM)
Thanks for sharing.

I'm in a dilemma on which solar companies to go with.
Company A offers 11.80kWp for RM38k
Company B offers 13.12kWp for RM47k

Monthly bill around RM850 or 1650kWh. While option A is cheaper but savings of RM650 monthly isnt a lot and with a small size (kWp), doesnt feel future proofing if tariff increases.

Advise?
*
u need to do is compared the same system.
1) What your roof size can fill
2) what brand of inverter u prefer (eg. Huawei are more expensive as the cable use are required to be in standard)

Based on above, then you ask them to give u the quote.

I have 4 vendor which all given me difference price, so I just told them what brain and what kwp I expect then give the quotation and offer.

Hope this help

merchant9
post Sep 15 2023, 12:40 PM

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https://soyacincau.com/2023/06/27/higher-el...ll%20of%20RM708


QUOTE(Drian @ Sep 9 2023, 05:15 PM)
Your aim should be to reduce consumption to roughly 300 kwhr .
Based on 3.5 sun hour/ day average@30 days
1300/3.5/30= 12.38kw

However some companies use single phase inverter to reduce cost.
Do you know why company B is charging 9k extra for only 1.3kw increase?
*
No idea on the additional cost actually. Price not competitive enough.




QUOTE(Jo_da48 @ Sep 9 2023, 05:23 PM)
u need to do is compared the same system.
1) What your roof size can fill
2) what brand of inverter u prefer (eg. Huawei are more expensive as the cable use are required to be in standard)

Based on above, then you ask them to give u the quote.

I have 4 vendor which all given me difference price, so I just told them what brain and what kwp I expect then give the quotation and offer.

Hope this help
*
Max 24 panels. Solis inverter, any comment? Got a new offer for 14.16kWp for RM43k.



bee88
post Oct 1 2023, 11:58 PM

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QUOTE(merchant9 @ Sep 15 2023, 12:40 PM)
https://soyacincau.com/2023/06/27/higher-el...ll%20of%20RM708
No idea on the additional cost actually. Price not competitive enough.
Max 24 panels. Solis inverter, any comment? Got a new offer for 14.16kWp for RM43k.
*
Why not try micro inverter? Am using it and really feel it’s way better and safer.
aerotec
post Oct 2 2023, 04:25 PM

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I was offered
Company A
5.88kWp Jinko panels qty 10
4kWp HUAWEI inverter
60months EPP
Rm19900

Company B
6.11 TW panels qty 11
7.5k SAJ inverter
36 months EPP
Rm17180

Same warranty
Solar panels 12 years product
Inverter 10 years

What other should be considered?

With the Budget 2024 announcement on the 13th Oct, care to share if u think the terms will be better that NEM 3.0? TQ

This post has been edited by aerotec: Oct 2 2023, 04:36 PM
bee88
post Oct 2 2023, 05:06 PM

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QUOTE(aerotec @ Oct 2 2023, 04:25 PM)
I was offered 
Company A
5.88kWp Jinko panels qty 10
4kWp HUAWEI inverter
60months EPP
Rm19900

Company B
6.11 TW panels qty 11
7.5k SAJ inverter
36 months EPP
Rm17180

Same warranty
Solar panels 12 years product
Inverter 10 years

What other  should be considered?

With  the Budget 2024 announcement on the 13th Oct, care to share if u think the terms will be better that NEM 3.0?  TQ
*
To be honest, better go for micro inverter. Price also in between or lower than what you are quoting with similar kwp.


billyboy
post Oct 2 2023, 05:22 PM

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QUOTE(bee88 @ Oct 2 2023, 05:06 PM)
To be honest, better go for micro inverter. Price also in between or lower than  what you are quoting with similar kwp.
*
inverters die about 8 to 12 years. big box inverter can repair. micro-inverter - i heard - just replace.

pros and cons.

which micro-inverter brand are you using ?
pgsiemkia
post Oct 2 2023, 05:24 PM

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QUOTE(lagista @ Nov 9 2020, 01:12 PM)
Problem is nobody invent lunar panel yet... otherwise it can cut to 5 yrs ROI only...
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Gila-lu, moon heat? Maciem itu semi valu wan to take roket to the sun but travel at night.


bee88
post Oct 2 2023, 05:26 PM

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QUOTE(billyboy @ Oct 2 2023, 05:22 PM)
inverters die about 8 to 12 years. big box inverter can repair. micro-inverter - i heard - just replace.

pros and cons.

which micro-inverter brand are you using ?
*
Yes. String inverter lifespan is around there.

Micro inverter is 25 years.

So I expect hassle free within 25 years for the micro. But by chance if it breaks, I think the probability also very low.


Yes. Just replace.

Using hoymiles.

adam71
post Oct 2 2023, 05:38 PM

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QUOTE(aerotec @ Oct 2 2023, 04:25 PM)
I was offered 
Company A
5.88kWp Jinko panels qty 10
4kWp HUAWEI inverter
60months EPP
Rm19900

Company B
6.11 TW panels qty 11
7.5k SAJ inverter
36 months EPP
Rm17180

Same warranty
Solar panels 12 years product
Inverter 10 years

What other  should be considered?

With  the Budget 2024 announcement on the 13th Oct, care to share if u think the terms will be better that NEM 3.0?  TQ
*
How much is monthly TNB bill only viable to install company A? My current TNB bill is RM110 per month

This post has been edited by adam71: Oct 2 2023, 05:38 PM
bee88
post Oct 2 2023, 05:44 PM

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QUOTE(adam71 @ Oct 2 2023, 05:38 PM)
How much is monthly TNB bill only viable to install  company A?  My current TNB bill is RM110 per month
*
If rm110 bill, there is little temptation to install. Because you are in the range of subsidize rate. However, subsidize rate could be removed anytime.

So if you insist on installing, a small kwp system around 13-15k will be sufficient.

The roi isn’t great but u don’t lose anything.
alen_wong38
post Oct 5 2023, 11:33 AM

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Hi sifus,

I was offered the following quotations:

Supplier A:

6.6kWp
Longi Solar (Tier AAA) 550Wp Monocrystalline PV module x 12 (warranty 12 years)
Hoymiles Micro-inverter HMS-1600 x 3 (warranty 12 years)
Price RM23k (48 months EPP from credit card)

Supplier B:
Option 1
6kWp
Canadian Solar CS6.1-72TB-600 x 10 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x2 (warranty 12 years)
Hoymiles Micro-inverter HMS1000 x1 (warranty 12 years)
Price RM24k (60 months EPP from credit card)


Option 2
6.9kWp
Longi Solar (Tier AAA) LR5-72HGD-575M x 12 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x3 (warranty 12 years)
Price RM27k (60 months EPP from credit card)

Can you please advise which one is the better deal?

Many thanks in advance.

This post has been edited by alen_wong38: Oct 5 2023, 11:38 AM
VeeJay
post Oct 5 2023, 12:18 PM

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QUOTE(alen_wong38 @ Oct 5 2023, 11:33 AM)
Hi sifus,

I was offered the following quotations:

Supplier A:

6.6kWp
Longi Solar (Tier AAA) 550Wp Monocrystalline PV module x 12 (warranty 12 years)
Hoymiles Micro-inverter HMS-1600 x 3 (warranty 12 years)
Price RM23k (48 months EPP from credit card)

Supplier B:
Option 1
6kWp
Canadian Solar CS6.1-72TB-600 x 10 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x2 (warranty 12 years)
Hoymiles Micro-inverter HMS1000 x1 (warranty 12 years)
Price RM24k (60 months EPP from credit card)
Option 2
6.9kWp
Longi Solar (Tier AAA) LR5-72HGD-575M x 12 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x3 (warranty 12 years)
Price RM27k (60 months EPP from credit card)

Can you please advise which one is the better deal?

Many thanks in advance.
*
Isnt 6KWp is low? How you done your calculation based on current amount/Kwh usage?
Do check our fellow member here who has a sample
https://forum.lowyat.net/topic/5055006/+240#
killeralta
post Oct 5 2023, 12:56 PM

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This post has been edited by killeralta: Oct 5 2023, 01:01 PM
alen_wong38
post Oct 5 2023, 01:09 PM

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QUOTE(VeeJay @ Oct 5 2023, 12:18 PM)
Isnt 6KWp is low? How you done your calculation based on current amount/Kwh usage?
Do check our fellow member here who has a sample
https://forum.lowyat.net/topic/5055006/+240#
*
Only 3 person staying. electricity bill about rm300+ ish
aerotec
post Oct 5 2023, 02:31 PM

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Is there big difference whether the solar panels are P or N type? Apparently N type is 1-2% more efficient to P type.
Thanks for sharing your knowledge.
alen_wong38
post Oct 5 2023, 02:55 PM

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QUOTE(aerotec @ Oct 5 2023, 02:31 PM)
Is there big difference whether the solar panels are P or N type? Apparently N type is 1-2% more efficient to P type.
Thanks for sharing your knowledge.
*
Actually I was also told that N type is better than P type bla bla bla... when i googled it the performance difference, like you said, 1-2% better; but price wise, 15-16% more. My previous post Supplier A using P-type, while Supplier B using N-type, price difference is already about 4k

This post has been edited by alen_wong38: Oct 5 2023, 02:55 PM
Jo_da48
post Oct 5 2023, 03:25 PM

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How could you determine that the calculation of TNB are accurate included the NEW balance?
I tried understand the smart meter reading but it not aligned with bill or the output of the Solar apps reading

bee88
post Oct 11 2023, 06:17 PM

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QUOTE(alen_wong38 @ Oct 5 2023, 11:33 AM)
Hi sifus,

I was offered the following quotations:

Supplier A:

6.6kWp
Longi Solar (Tier AAA) 550Wp Monocrystalline PV module x 12 (warranty 12 years)
Hoymiles Micro-inverter HMS-1600 x 3 (warranty 12 years)
Price RM23k (48 months EPP from credit card)

Supplier B:
Option 1
6kWp
Canadian Solar CS6.1-72TB-600 x 10 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x2 (warranty 12 years)
Hoymiles Micro-inverter HMS1000 x1 (warranty 12 years)
Price RM24k (60 months EPP from credit card)
Option 2
6.9kWp
Longi Solar (Tier AAA) LR5-72HGD-575M x 12 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x3 (warranty 12 years)
Price RM27k (60 months EPP from credit card)

Can you please advise which one is the better deal?

Many thanks in advance.
*
I feel this is not a good system pairing. Overloading the inverter will kill the inverter quickly.
coconutzz
post Nov 12 2023, 10:45 AM

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Hi all One questions, wirh solar panel installed, when there is a power cut from TNB, do we still have Power ? Just curious
Jo_da48
post Nov 13 2023, 09:07 PM

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QUOTE(coconutzz @ Nov 12 2023, 10:45 AM)
Hi all One questions, wirh solar panel installed, when there is a power cut from TNB, do we still have Power ? Just curious
*
Nope. Except you puchased a backup batter where you keep all the solar power. But not recommend as this point due to cost of the battery.


coconutzz
post Nov 14 2023, 09:35 AM

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QUOTE(Jo_da48 @ Nov 13 2023, 09:07 PM)
Nope. Except you puchased a backup batter where you keep all the solar power. But not recommend as this point due to cost of the battery.
*
Thank you so much for answering my questions..appreciate that
Kentona
post Nov 20 2023, 02:48 PM

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Anyone know which company that tie up with maybank for 60 months installment?
ticke
post Nov 20 2023, 03:00 PM

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no mareshian follow elon musk footstep. do solar tiles. else, will be a hit in MY since cheaper.
narf03
post Nov 20 2023, 03:03 PM

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QUOTE(acbc @ Nov 9 2020, 01:07 PM)
I read somewhere the ROI is between 9-10 years.
*
Usually after 10 years u have to replace this and that already
bee88
post Nov 22 2023, 07:46 AM

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QUOTE(Kentona @ Nov 20 2023, 02:48 PM)
Anyone know which company that tie up with maybank for 60 months installment?
*
Quite a few actualy
bee88
post Nov 22 2023, 07:47 AM

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QUOTE(narf03 @ Nov 20 2023, 03:03 PM)
Usually after 10 years u have to replace this and that already
*
By then already untung double kaw kaw dy.

But replacement is just a remote possibility. Panel not going to be replaced. Most likely inverter if it’s broken after warranty period.
samftrmd
post Nov 22 2023, 07:54 AM

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https://www.expertreviews.co.uk/technology/...olar-power-bank
narf03
post Nov 22 2023, 08:04 AM

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QUOTE(bee88 @ Nov 22 2023, 07:47 AM)
By then already untung double kaw kaw dy.

But replacement is just a remote possibility. Panel not going to be replaced. Most likely inverter if it’s broken after warranty period.
*
it really depends on what rate u are paying.

user posted image

this is my bill

the 1st 200 unit is at RM0.218 per KW, its very very cheap

the next 100 unit at RM0.334 per KW, sudden 50%+ increment over the 1st 200 unit

then the next 300 unit at RM0.516 per KW, which is 2.36x compare to the 1st 200 unit

i believe there are 2 more category after the 0.516, the max should be very close to RM0.6 per KW, which is about 3 times over the 1st 200 units


now talking about is it worth it or not, depends on how much u are paying for the last category, the RM0.6 per KW, lets say you use alot of power, like 2000 kw, more than 1000KW is from that RM0.6 per KW category, you would like your solar to completely cover that 0.6 category plus maybe the last 2 category.

but if you are only paying first 2 category (<300kW per month), then its NOT WORTH IT, 100% conQlanfirm.
bee88
post Nov 22 2023, 08:08 AM

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QUOTE(narf03 @ Nov 22 2023, 08:04 AM)
it really depends on what rate u are paying.

user posted image

this is my bill

the 1st 200 unit is at RM0.218 per KW, its very very cheap

the next 100 unit at RM0.334 per KW, sudden 50%+ increment over the 1st 200 unit

then the next 300 unit at RM0.516 per KW, which is 2.36x compare to the 1st 200 unit

i believe there are 2 more category after the 0.516, the max should be very close to RM0.6 per KW, which is about 3  times over the 1st 200 units
now talking about is it worth it or not, depends on how much u are paying for the last category, the RM0.6 per KW, lets say you use alot of power, like 2000 kw, more than 1000KW is from that RM0.6 per KW category, you would like your solar to completely cover that 0.6 category plus maybe the last 2 category.

but if you are only paying first 2 category (<300kW per month), then its NOT WORTH IT, 100% conQlanfirm.
*
Yes. Currently it’s very worth it if you hit the last two bracket like me.

However, the first two brackets aren’t going to be the same rate throughout. There would be adjustment, removal of subsidies and increment depending on govt policy 10 years down the road.


DarkNite
post Nov 22 2023, 08:12 AM

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QUOTE(bee88 @ Nov 22 2023, 08:08 AM)
Yes. Currently it’s very worth it if you hit the last two bracket like me. 

However, the first two brackets aren’t going to be the same rate throughout. There would be adjustment, removal of subsidies and increment depending on govt policy 10 years down the road.
*
How many kwh is your average monthly usage?

10 yrs down the road?
By then, solar panels technology would have improved & cost lower? hmm.gif
narf03
post Nov 22 2023, 08:16 AM

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QUOTE(bee88 @ Nov 22 2023, 08:08 AM)
Yes. Currently it’s very worth it if you hit the last two bracket like me. 

However, the first two brackets aren’t going to be the same rate throughout. There would be adjustment, removal of subsidies and increment depending on govt policy 10 years down the road.
*
well if the gov remove subsidy, you can expect sudden spike in solar panel installation and alot of promotion, technically price of installation will also greatly reduced when market kaboom, i would wait for that moment =p

bee88
post Nov 22 2023, 08:46 AM

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QUOTE(narf03 @ Nov 22 2023, 08:16 AM)
well if the gov remove subsidy, you can expect sudden spike in solar panel installation and alot of promotion, technically price of installation will also greatly reduced when market kaboom, i would wait for that moment =p
*
Only one problem, NEM is over by then. No more offset 1:1 by Tnb.
narf03
post Nov 22 2023, 08:48 AM

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QUOTE(bee88 @ Nov 22 2023, 08:46 AM)
Only one problem, NEM is over by then.  No more offset 1:1 by Tnb.
*
maybe, maybe not, depends on pressure. when you go green and tnb step in your way, they get alot of pressure.
bee88
post Nov 22 2023, 08:49 AM

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QUOTE(DarkNite @ Nov 22 2023, 08:12 AM)
How many kwh is your average monthly usage?

10 yrs down the road?
By then, solar panels technology would have improved & cost lower? hmm.gif
*
Mine is about 1200-1400kwh usage monthly.
Right now , for me , these 10 years is crucial to get the system for free first. By 10 th year, my battery should be free too, covered by the savings from 5th year onwards.
Boy96
post Dec 4 2023, 11:22 PM

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https://services.seda.gov.my/nem/quota/dashboard


NEM RAKYAT quota sudah habis worr
zerorating
post Dec 4 2023, 11:34 PM

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QUOTE(Boy96 @ Dec 4 2023, 11:22 PM)
https://services.seda.gov.my/nem/quota/dashboard
NEM RAKYAT quota sudah habis worr
*
so whats next?
NEM4.0? hmm.gif
ronnie
post Dec 5 2023, 08:20 AM

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Wait for new quota to be open by Minister
sihamsedap
post Dec 5 2023, 08:40 AM

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mine install in sept from 700/month to 20 per month.. and mostly is fees and taxes in that.. real usage probably less than 10

but november macam haram, everyday rain.. so bill is around 90.. kns
kkkw80
post Dec 5 2023, 08:56 AM

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I've a friend who is certified ASHRAE and Energy Manager, he advise its not worth it now to get solar installed. Earlier yes.

I've calculated mine, ROI 7 years is just not worth it.
ronnie
post Dec 5 2023, 09:09 AM

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QUOTE(kkkw80 @ Dec 5 2023, 08:56 AM)
I've a friend who is certified ASHRAE and Energy Manager, he advise its not worth it now to get solar installed. Earlier yes.

I've calculated mine, ROI 7 years is just not worth it.
*
previously was even longer to ROI 10+ years...
As you wait longer the price of solar cell drops, competition will drive down the price, ROI will get shorter. that's normaql.
alexei
post Dec 5 2023, 09:16 AM

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Solar installation, the earlier you adopt, the better, last time FiT, ppl oredi earn kaw-kaw, that time the price was very high, and ROI was around 6 years. Today, their FiT income can pay for monthly car/house loan.

Now is NEM, depending on your consumption, the ROI is between 7~10 years. Contract period is much shorter than FiT.

As of July 2023, there is the ICPT adjustment (calculated before solar offset) that will hurt consumers:
- less than 1.5k kWh, rebate -0.020 sen/kWh (usage 1500kWh = RM737.50)
- more than 1.5k kWh, surcaj 0.10 sen/kWh (usage 1501kWh = RM924.69)

https://www.mytnb.com.my/residential/unders...lling-component
https://myelectricitybill.my/bill_calculator_domestic.html

This post has been edited by alexei: Dec 5 2023, 09:16 AM
alexei
post Dec 5 2023, 09:37 AM

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What we're thought, is that solar price will decrease and duration to ROI will decrease. This was correct, but the ROI heavily depended on the scheme provided by TNB. Last time, RM10~12k/kW now Rm4~5k/kW. Solar price did go down, but ROI was longer.

Moving forward, solar price will keep going down, or the technology gets better. Electricity tariff heavily depends on cost of fuel, and subsidy. Right now, fuel subsidy and electricity subsidy is going to cut. Biggest question will be, what is the NEM to discount ratio? The economics of solar will 'self balance' between solar vendors pricing vs TNB scheme. Otherwise, everybody will rush to installing solar and we end up like Australia.

In short, I foresee ROI will maintain between 7~10 years no matter the solar technology or pricing, unless something distruptive comes along.
ronnie
post Dec 5 2023, 09:39 AM

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QUOTE(alexei @ Dec 5 2023, 09:37 AM)
What we're thought, is that solar price will decrease and duration to ROI will decrease. This was correct, but the ROI heavily depended on the scheme provided by TNB. Last time, RM10~12k/kW now Rm4~5k/kW. Solar price did go down, but ROI was longer.

Moving forward, solar price will keep going down, or the technology gets better. Electricity tariff heavily depends on cost of fuel, and subsidy. Right now, fuel subsidy and electricity subsidy is going to cut. Biggest question will be, what is the NEM to discount ratio? The economics of solar will 'self balance' between solar vendors pricing vs TNB scheme. Otherwise, everybody will rush to installing solar and we end up like Australia.

In short, I foresee ROI will maintain between 7~10 years no matter the solar technology or pricing, unless something distruptive comes along.
*
Disruptive : Tesla Solar ?
alexei
post Dec 5 2023, 09:45 AM

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Solar and electric cars: right now, electric cars are using ~20kWh/100km (credit Boy96 on his AMA), so that's between RM4.7~RM12.3 per 100km depending on the TNB tariff rates, or equavalent to 2.3L~6L per 100km based on current RON95 price of RM2.05.

Comparing to a car that consumes RM20.50 per 100km (10L/100km), that's a savings between RM15~8.2 per 100km, or 80sen~40sen savings per 100kWh.

So, if you move from petrol to electric, remember to include petrol savings into the solar ROI.

This post has been edited by alexei: Dec 5 2023, 09:49 AM
MGM
post Dec 5 2023, 09:46 AM

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QUOTE(alexei @ Dec 5 2023, 09:37 AM)
What we're thought, is that solar price will decrease and duration to ROI will decrease. This was correct, but the ROI heavily depended on the scheme provided by TNB. Last time, RM10~12k/kW now Rm4~5k/kW. Solar price did go down, but ROI was longer.

Moving forward, solar price will keep going down, or the technology gets better. Electricity tariff heavily depends on cost of fuel, and subsidy. Right now, fuel subsidy and electricity subsidy is going to cut. Biggest question will be, what is the NEM to discount ratio? The economics of solar will 'self balance' between solar vendors pricing vs TNB scheme. Otherwise, everybody will rush to installing solar and we end up like Australia.

In short, I foresee ROI will maintain between 7~10 years no matter the solar technology or pricing, unless something distruptive comes along.
*
What if u factor in the fuel saved by using EV instead of ICE, assuming EV like BYD Seagull cost only rm80k?

alexei
post Dec 5 2023, 09:47 AM

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MGM

So, example, if I drive 10k km per year.
That's RM2050 petrol, vs RM1230 electricity.
Savings is RM820 in petrol per year.

Depending on what else wanna factor in from the car maintenance vs EV maintenance... oil change, engine parts, major service every 50/100k km, also, petrol subsidy might be going away... the ROI calculation gets interesting push towards adopting solar and EV

QUOTE(alexei @ Dec 5 2023, 09:45 AM)
Solar and electric cars: right now, electric cars are using ~20kWh/100km (credit Boy96 on his AMA), so that's between RM4.7~RM12.3 per 100km depending on the TNB tariff rates, or equavalent to 2.3L~6L per 100km based on current RON95 price of RM2.05.

Comparing to a car that consumes RM20.50 per 100km (10L/100km), that's a savings between RM15~8.2 per 100km, or 80sen~40sen savings per 100kWh.

So, if you move from petrol to electric, remember to include petrol savings into the solar ROI.
*
This post has been edited by alexei: Dec 5 2023, 09:58 AM
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post Dec 5 2023, 10:09 AM

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Solar & EV is the future.... do it now and enjoy the fruits earlier than those who stays behind "wait & see"
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post Dec 5 2023, 10:19 AM

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QUOTE(alexei @ Dec 5 2023, 09:47 AM)
MGM

So, example, if I drive 10k km per year.
That's RM2050 petrol, vs RM1230 electricity.
Savings is RM820 in petrol per year.

Depending on what else wanna factor in from the car maintenance vs EV maintenance... oil change, engine parts, major service every 50/100k km, also, petrol subsidy might be going away... the ROI calculation gets interesting push towards adopting solar and EV
*
I think someone in MY mentioned that if factor in EV, ROI could shortened to 4 to 5 years. Will be even shorter if govt reduces subsidies for petrol n electricity in 2024.
alexei
post Dec 5 2023, 10:29 AM

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QUOTE(MGM @ Dec 5 2023, 10:19 AM)
I think someone in MY mentioned that if factor in EV, ROI could shortened to 4 to 5 years. Will be even shorter if govt reduces subsidies for petrol n electricity in 2024.
*
The consumption also varies by car, I'm sure, just don't have the numbers
the savings formula should be simple, such as RM8 savings per 100km

Unrealistically speaking, if use the EV and drives 100k km per year (274km daily), the minimum savings is RM8k per year. That's almost ROI for a 2kW system.
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post Dec 5 2023, 10:33 AM

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QUOTE(MGM @ Dec 5 2023, 10:19 AM)
I think someone in MY mentioned that if factor in EV, ROI could shortened to 4 to 5 years. Will be even shorter if govt reduces subsidies for petrol n electricity in 2024.
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Stay landed 24X80 can la

Stay 20X60 confirm cannot
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post Dec 5 2023, 10:42 AM

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QUOTE(alexei @ Dec 5 2023, 10:29 AM)
The consumption also varies by car, I'm sure, just don't have the numbers
the savings formula should be simple, such as RM8 savings per 100km

Unrealistically speaking, if use the EV and drives 100k km per year (274km daily), the minimum savings is RM8k per year. That's almost ROI for a 2kW system.
*
Good for Grab drivers then.
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post Dec 5 2023, 10:44 AM

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ur tnb monthly?

me doing solar
alexei
post Dec 5 2023, 10:59 AM

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4kW yield around 4~6hours a day, that's 16~24kWh, meaning 480~720kWh per month


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post Dec 5 2023, 01:28 PM

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Malaysia's Solar yield is lower because of higher cloud coverage... seldom see blue sky with zero clouds.
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post Dec 5 2023, 01:29 PM

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QUOTE(alexei @ Dec 5 2023, 10:59 AM)
4kW yield around 4~6hours a day, that's 16~24kWh, meaning 480~720kWh per month
*
Location?

Klang valley for me getting only 3.1 hours (annual average)

Old bosch panel
alexei
post Dec 5 2023, 01:54 PM

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QUOTE(billyboy @ Dec 5 2023, 01:29 PM)
Location?

Klang valley for me getting only 3.1 hours (annual average)

Old bosch panel
*
maybe I was a bit too optimistic
I got 3.46 in 2021, 3.27 in 2022, so far 3.05 for 2023...
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post Dec 5 2023, 10:49 PM

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I'm getting 32 to 34 kWh yield for 2.5 hours per day due to current weather now.
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post Dec 6 2023, 07:44 PM

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QUOTE(bee88 @ Nov 22 2023, 08:49 AM)
Mine is about 1200-1400kwh usage monthly.
Right now , for me , these  10 years is crucial to get the system for free first. By 10 th year, my battery should be free too, covered by the savings from 5th year onwards.
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You installed with battery?

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post Dec 6 2023, 07:50 PM

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QUOTE(ronnie @ Dec 5 2023, 09:09 AM)
previously was even longer to ROI 10+ years...
As you wait longer the price of solar cell drops, competition will drive down the price, ROI will get shorter. that's normaql.
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should drop below 10k already for teres
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post Dec 6 2023, 07:54 PM

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QUOTE(alexei @ Dec 5 2023, 09:16 AM)
Solar installation, the earlier you adopt, the better, last time FiT, ppl oredi earn kaw-kaw, that time the price was very high, and ROI was around 6 years. Today, their FiT income can pay for monthly car/house loan.

Now is NEM, depending on your consumption, the ROI is between 7~10 years. Contract period is much shorter than FiT.

As of July 2023, there is the ICPT adjustment (calculated before solar offset) that will hurt consumers:
- less than 1.5k kWh, rebate -0.020 sen/kWh (usage 1500kWh = RM737.50)
- more than 1.5k kWh, surcaj 0.10 sen/kWh (usage 1501kWh = RM924.69)

https://www.mytnb.com.my/residential/unders...lling-component
https://myelectricitybill.my/bill_calculator_domestic.html
*
No wonder they said the rich will get richer and the poor will get poorer. hmm.gif
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post Dec 6 2023, 08:00 PM

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QUOTE(Jo_da48 @ Dec 6 2023, 07:44 PM)
You installed with battery?
*
No. There isn’t a battery to worry about. It’s under NEM, so Tnb will take the excess generated and give back 1:1 offset at night.
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post Dec 7 2023, 07:41 AM

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QUOTE(sihamsedap @ Dec 5 2023, 08:40 AM)
mine install in sept from 700/month to 20 per month.. and mostly is fees and taxes in that.. real usage probably less than 10

but november macam haram, everyday rain.. so bill is around 90.. kns
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Mine still nice. Even November only rm1.90. What’s your system setup?
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post Dec 7 2023, 07:48 AM

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QUOTE(kkkw80 @ Dec 5 2023, 08:56 AM)
I've a friend who is certified ASHRAE and Energy Manager, he advise its not worth it now to get solar installed. Earlier yes.

I've calculated mine, ROI 7 years is just not worth it.
*
As long as under nem, it is okay. With ROI 7 years , you still get free electricity for 3 years. And not to mention, u have a system fully paid for using Tnb money. Imagin if you don’t go solar and pay 7 years of electricity to Tnb just to get electricity. Why not double up the value paid, get electricity and system.
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post Dec 7 2023, 07:51 AM

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Problem is gomen not giving enough incentive to go for RE, that's why most people don't bother it
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post Dec 7 2023, 07:54 AM

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QUOTE(johnnycp @ Dec 7 2023, 07:51 AM)
Problem is gomen not giving enough incentive to go for RE, that's why most people don't bother it
*
Actually incentive is going to be less. Not going to be more.

Look at nem3.0 in California, now they have to pay for battery solution already.


Right now the incentive still there. Electricity is something we will use anyway. So grab it before it’s too late.

Next time, when u want to adopt solar, price of the pnel could drop, but battery solution is still going to make the whole system price going up again.

My current plan is get the system for free first, then next time, only invest on battery. Or sell back , whichever is better deal.
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post Dec 7 2023, 08:31 AM

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QUOTE(bee88 @ Dec 7 2023, 07:41 AM)
Mine still nice. Even November only rm1.90.  What’s your system setup?
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11kw
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post Dec 7 2023, 08:36 AM

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QUOTE(sihamsedap @ Dec 7 2023, 08:31 AM)
11kw
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Ic.

If your bill consistently rm700, should have gotten a little higher. Like 13kwp or higher. Maybe can tambah two more panels? Haha.
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post Dec 7 2023, 08:48 AM

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which supplier the most cost effective and reliable for 5.5KWp systerm ?

some company offer discount for petronas staff, which I stay away, since they mark up the price for non petronas staff
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post Dec 7 2023, 08:54 AM

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No wonder 50% of houses in Adelaide installed with solar panel systems, lots of sun n blue sky.
alexei
post Dec 7 2023, 09:00 AM

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QUOTE(JohnLai @ Dec 6 2023, 07:54 PM)
No wonder they said the rich will get richer and the poor will get poorer.  hmm.gif
*
no ler, ppl I know who install FiT are the calculative type, and they see the value oredi
some will take solar loan, some use own cash to fund it
I remember last time FiT, Alliance give solar loan at 5~6%, many ppl just take it
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post Dec 7 2023, 09:32 AM

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QUOTE(bee88 @ Dec 7 2023, 08:36 AM)
Ic.

If your bill consistently rm700, should have gotten a little higher.  Like 13kwp or higher. Maybe can tambah two more panels? Haha.
*
got good sunlight months and bad months

if i go bigger then i'd overcapacity too.. and got credits that need to use up in X months

11kw is just nice actually.. i blame coldplay for bringing the rain
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post Dec 7 2023, 09:44 AM

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QUOTE(alexei @ Dec 5 2023, 09:16 AM)
Solar installation, the earlier you adopt, the better, last time FiT, ppl oredi earn kaw-kaw, that time the price was very high, and ROI was around 6 years. Today, their FiT income can pay for monthly car/house loan.

Now is NEM, depending on your consumption, the ROI is between 7~10 years. Contract period is much shorter than FiT.

As of July 2023, there is the ICPT adjustment (calculated before solar offset) that will hurt consumers:
- less than 1.5k kWh, rebate -0.020 sen/kWh (usage 1500kWh = RM737.50)
- more than 1.5k kWh, surcaj 0.10 sen/kWh (usage 1501kWh = RM924.69)

https://www.mytnb.com.my/residential/unders...lling-component
https://myelectricitybill.my/bill_calculator_domestic.html
*
Not entirely correct, my neighbor is one of the early adopters of solar use with the FiT scheme. Till today, after 5 years, the ROI still has a long way to go.
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QUOTE(hjh87 @ Dec 7 2023, 09:44 AM)
Not entirely correct, my neighbor is one of the early adopters of solar use with the FiT scheme. Till today, after 5 years, the ROI still has a long way to go.
*
They needed more. Correct. 9 years if considered fast. Their contract is 21 years iinm.
alexei
post Dec 7 2023, 10:29 AM

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QUOTE(hjh87 @ Dec 7 2023, 09:44 AM)
Not entirely correct, my neighbor is one of the early adopters of solar use with the FiT scheme. Till today, after 5 years, the ROI still has a long way to go.
*
then it's worth looking into the maths vs actual

assume commence in mid 2018 (5 years ago)
source: https://www3.seda.gov.my/iframe/
user posted image

4kW FiT at RM0.6682 - average 3hr daily, is monthly 360kWh = RM240
I think the capital that time was around 30~35k, so the ROI would be 12 years or less

Hmmm, how did I remember FiT ROI being much shorter... bangwall.gif
etan26
post Dec 7 2023, 10:31 AM

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QUOTE(bee88 @ Dec 6 2023, 08:00 PM)
No. There isn’t a battery to worry about. It’s under NEM, so Tnb will take the excess generated and give back 1:1 offset at night.
*
No lah, tnb doesn't do that. They only offset during your monthly billing.
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post Dec 7 2023, 10:41 AM

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QUOTE(bee88 @ Dec 7 2023, 08:36 AM)
Ic.

If your bill consistently rm700, should have gotten a little higher.  Like 13kwp or higher. Maybe can tambah two more panels? Haha.
*
I also wanted more Kw, at that time the max is 11.7Kw cause my bill can go up to 1k monthly.
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post Dec 7 2023, 10:44 AM

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QUOTE(etan26 @ Dec 7 2023, 10:41 AM)
I also wanted more Kw, at that time the max is 11.7Kw cause my bill can go up to 1k monthly.
*
Actually can top up ma. But depend on your system lo. If micro easier. If string, gg
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post Dec 7 2023, 10:48 AM

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QUOTE(bee88 @ Dec 7 2023, 10:44 AM)
Actually can top up ma. But depend on your system lo. If micro easier. If string, gg
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At that time I applied the T&C stated max for residential is 11.7kw only .... but good enough for now ....
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post Dec 7 2023, 10:51 AM

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QUOTE(etan26 @ Dec 7 2023, 10:48 AM)
At that time I applied the T&C stated max for residential is 11.7kw only .... but good enough for now  ....
*
Kwac or dc?

Coz if dc, can go higher. If 11.7kwac, then can install 14kwp dc.
etan26
post Dec 7 2023, 10:58 AM

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QUOTE(bee88 @ Dec 7 2023, 10:51 AM)
Kwac or dc?

Coz if dc, can go higher.  If 11.7kwac, then can install 14kwp dc.
*
Where to see this infor?
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post Dec 7 2023, 11:05 AM

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QUOTE(etan26 @ Dec 7 2023, 10:58 AM)
Where to see this infor?
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Check your seda cert.
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post Dec 7 2023, 11:07 AM

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I am more afraid if your solar provider didn’t help to apply full quota for your system.

For example, you instal 11kwp panel, they only help to apply 8-9kwac jer.
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post Dec 7 2023, 12:32 PM

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QUOTE(bee88 @ Dec 7 2023, 10:51 AM)
Kwac or dc?

Coz if dc, can go higher.  If 11.7kwac, then can install 14kwp dc.
*
10 Kwac jer ... sad.gif
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post Dec 7 2023, 12:59 PM

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QUOTE(etan26 @ Dec 7 2023, 12:32 PM)
10 Kwac jer ...  sad.gif
*
But u can add 2 or 3 more panels.

Usually for 10kwac, some solar supplier supply up to 13 kwp.
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post Dec 7 2023, 01:39 PM

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QUOTE(bee88 @ Dec 7 2023, 12:59 PM)
But u can add 2 or 3 more panels.

Usually for 10kwac, some solar supplier supply up to 13 kwp.
*
hmm.gif hmm.gif

hjh87
post Dec 7 2023, 08:41 PM

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QUOTE(alexei @ Dec 7 2023, 10:29 AM)
then it's worth looking into the maths vs actual

assume commence in mid 2018 (5 years ago)
source: https://www3.seda.gov.my/iframe/
user posted image

4kW FiT at RM0.6682 - average 3hr daily, is monthly 360kWh = RM240
I think the capital that time was around 30~35k, so the ROI would be 12 years or less

Hmmm, how did I remember FiT ROI being much shorter... bangwall.gif
*
Yeah, if we compare the calculation provided by the installer to the actual operating results, there could be a significant difference, considering unforeseen circumstances. For example, you showed the monthly average generation of RM240 * 12 months = RM2880. However, there was a time when the inverter went faulty, and the neighbor had to get the installer to rectify it, costing roughly RM2k per trip. This cost has already offset the 1-year generated revenue, meaning the ROI will extend.

In my opinion, investing in solar still may not be very feasible in Malaysia due to factors such as climate, operating costs, and the less attractive schemes available. One very obvious change is that even TNB has shortened the 20-year NEM contract to 10 years.
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QUOTE(etan26 @ Dec 7 2023, 10:41 AM)
I also wanted more Kw, at that time the max is 11.7Kw cause my bill can go up to 1k monthly.
*
My bill is 800 but I install 14kWp for future proofing.
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post Dec 8 2023, 09:02 PM

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QUOTE(hjh87 @ Dec 7 2023, 08:41 PM)
Yeah, if we compare the calculation provided by the installer to the actual operating results, there could be a significant difference, considering unforeseen circumstances. For example, you showed the monthly average generation of RM240 * 12 months = RM2880. However, there was a time when the inverter went faulty, and the neighbor had to get the installer to rectify it, costing roughly RM2k per trip. This cost has already offset the 1-year generated revenue, meaning the ROI will extend.

In my opinion, investing in solar still may not be very feasible in Malaysia due to factors such as climate, operating costs, and the less attractive schemes available. One very obvious change is that even TNB has shortened the 20-year NEM contract to 10 years.
*
Why would it cost 2k for the faulty inverter when it’s under warranty?
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post Dec 8 2023, 10:03 PM

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QUOTE(bee88 @ Dec 8 2023, 09:02 PM)
Why would it cost 2k for the faulty inverter when it’s under warranty?
*
Regarding warranties, please bear in mind that not all warranties cover everything. Panels may come with a 20-year warranty on performance, while inverters may have a 5-year warranty or less, requiring an extra payment during initial installation. It's essential to consider the warranty provided by the installer, typically around 1 year in older days, with charges for subsequent service. When it comes to panel or inverter warranties, carefully read the manufacturer's fine print to understand what's covered. Claiming warranty in Malaysia can be challenging for end users.

I'm quite curious about the experiences of those who installed solar systems in the past 5 years. Could you share any issues faced with panels and inverters? How does the yield after 5 years compare to the first year?
nyunyu
post Dec 14 2023, 12:38 PM

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Guys, if someone bought a house that the previous owner had installed some kind of power saving mod, I think it was at the the meter, will the new owner get in trouble when they want to install solar system at the house? They could not see anything wrong with the meter though.
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QUOTE(nyunyu @ Dec 14 2023, 12:38 PM)
Guys, if someone bought a house that the previous owner had installed some kind of power saving mod, I think it was at the the meter, will the new owner get in trouble when they want to install solar system at the house? They could not see anything wrong with the meter though.
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QUOTE(nyunyu @ Dec 14 2023, 12:38 PM)
Guys, if someone bought a house that the previous owner had installed some kind of power saving mod, I think it was at the the meter, will the new owner get in trouble when they want to install solar system at the house? They could not see anything wrong with the meter though.
*
report to TNB first before u change/update the TNB account..
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post Dec 14 2023, 01:04 PM

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QUOTE(nyunyu @ Dec 14 2023, 12:38 PM)
Guys, if someone bought a house that the previous owner had installed some kind of power saving mod, I think it was at the the meter, will the new owner get in trouble when they want to install solar system at the house? They could not see anything wrong with the meter though.
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immediately change a new METER with new TNB account
nyunyu
post Dec 14 2023, 01:22 PM

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QUOTE(karazure @ Dec 14 2023, 12:48 PM)
once you bought the house, u inherit the skeleton. it become ur ghost to worried about.
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QUOTE(brkli @ Dec 14 2023, 01:04 PM)
report to TNB first before u change/update the TNB account..
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QUOTE(ronnie @ Dec 14 2023, 01:04 PM)
immediately change a new METER with new TNB account
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Thanks, will advice the owner to go straight to TNB. I guess he won't have a good time with the previous owner after this.
Just curious, can install without change the meter or TNB will come and check before installation?
Jo_da48
post Dec 21 2023, 09:23 PM

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QUOTE(nyunyu @ Dec 14 2023, 01:22 PM)
Thanks, will advice the owner to go straight to TNB. I guess he won't have a good time with the previous owner after this.
Just curious, can install without change the meter or TNB will come and check before installation?
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1st of all, the meter need to change to the new owner name before you engage the solar company as the solar company will need validate.
once change the name, good to change the meter to prevent any trouble inherit
when install the solar that will be TNB team go over to change the meter or verify before you allow to switch ON the solar panal power.

for good well, you could ask the x-owner to settle it off
Jo_da48
post Dec 24 2023, 10:48 AM

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hopefully members will have least impact with the ICPT remove if more then 601kw


https://www.freemalaysiatoday.com/category/...s-not-affected/

etan26
post Dec 26 2023, 03:17 PM

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Based on this actually your consumption 1619kWh (total consumption) - 673 (NEM excess) actually after offset you are not supposed to be charge surcharge
so can complaint to ST(Suruhanjaya Tenaga Bureau) this because ST wasn't aware.


I got this news from my Solar installer company just now, they are compiling all the complaints and forward to ST.
Jo_da48
post Dec 26 2023, 05:09 PM

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QUOTE(etan26 @ Dec 26 2023, 03:17 PM)
Based on this actually your consumption 1619kWh (total consumption) - 673 (NEM excess) actually after offset you are not supposed to be charge surcharge
so can complaint to ST(Suruhanjaya Tenaga Bureau) this because ST wasn't aware.


I got this news from my Solar installer company just now, they are compiling all the complaints and forward to ST.
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I also woundering too. it sound like asking peoples to use during day time instead of night time, so that it not go through meter recording especially now the target start involved above 601kw
bee88
post Jan 2 2024, 11:23 PM

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QUOTE(etan26 @ Dec 26 2023, 03:17 PM)
Based on this actually your consumption 1619kWh (total consumption) - 673 (NEM excess) actually after offset you are not supposed to be charge surcharge
so can complaint to ST(Suruhanjaya Tenaga Bureau) this because ST wasn't aware.


I got this news from my Solar installer company just now, they are compiling all the complaints and forward to ST.
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Actually the total consumption 1619kwh is used at nighttime. And Tnb supply the 1619kwh using coal and those non renewable sources. So their rationale of charging the surcharge of icpt is because the price of coal thst they use to generate 1619kwh for you fluctuate according to market price.
etan26
post Jan 2 2024, 11:32 PM

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QUOTE(bee88 @ Jan 2 2024, 11:23 PM)
Actually the total consumption 1619kwh is used at nighttime. And Tnb supply the 1619kwh using coal and those non renewable sources. So their rationale of charging the surcharge of icpt is because the price of coal thst they use to generate 1619kwh for you fluctuate according to market price.
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Then how about daytime? The TNB supply also used the same method but can be offset by our solar generated energy.

bee88
post Jan 3 2024, 06:47 AM

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QUOTE(etan26 @ Jan 2 2024, 11:32 PM)
Then how about daytime? The TNB supply also used the same method but can be offset by our solar generated energy.
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Daytime if you draw more than u produce, then the usage will be recorded as well. So some of the 1619kwh recorded for the monthly usage could be in the morning when system didn’t produce more than own usage. So that kWh is also generated by Tnb using coal , and hence , the icpt charges applies.

Usually for daytime, u use ur own production and excess will be pushed back to Tnb. Those being pushed back to Tnb is recorded separately.

In the morning, my production is more, so, the import reading from the meter remain static from 8am until 6pm.

Only the export reading goes up.

This post has been edited by bee88: Jan 3 2024, 06:50 AM
Drian
post Jan 3 2024, 08:34 AM

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QUOTE(etan26 @ Dec 26 2023, 03:17 PM)
Based on this actually your consumption 1619kWh (total consumption) - 673 (NEM excess) actually after offset you are not supposed to be charge surcharge
so can complaint to ST(Suruhanjaya Tenaga Bureau) this because ST wasn't aware.


I got this news from my Solar installer company just now, they are compiling all the complaints and forward to ST.
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they will lose the 1500kwhr is based of what you get from the grid, not the nett.



etan26
post Jan 3 2024, 11:09 AM

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QUOTE(bee88 @ Jan 3 2024, 06:47 AM)
Daytime if you draw more than u produce, then the usage will be recorded as well. So some of the 1619kwh recorded for the monthly usage could be in the morning when system didn’t produce more than own usage. So that kWh is also generated by Tnb using coal , and hence , the icpt charges applies.

Usually for daytime, u use ur own production and excess will be pushed back to Tnb. Those being pushed back to Tnb is recorded separately.

In the morning, my production is more, so, the import reading from the meter remain static from 8am until 6pm.

Only the export reading goes up.
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What I am saying here is during daytime those electricity we used from TNB is also ICPT but these can be offset. So the logic is that nighttime the surplus store solar energy is not allowed to offset the usage.
etan26
post Jan 3 2024, 11:13 AM

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QUOTE(Drian @ Jan 3 2024, 08:34 AM)
they will lose the 1500kwhr is based of what you get from the grid, not the nett.
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No, during daytime we also get from the Grid, our solar energy is exported and we import the Grid energy. Hence they offset during daytime but not the night time when we have surplus from daytime generation.
bee88
post Jan 3 2024, 01:39 PM

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QUOTE(etan26 @ Jan 3 2024, 11:09 AM)
What I am saying here is during daytime those electricity we used from TNB is also ICPT but these can be offset. So the logic is that nighttime the surplus store solar energy is not allowed to offset the usage.
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But daytime u didn’t use Tnb electricity. U use ur solar first.

Try to check if ur meter for daytime got move or not. The reading for import. 01.
bee88
post Jan 3 2024, 01:39 PM

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QUOTE(etan26 @ Jan 3 2024, 11:13 AM)
No, during daytime we also get from the Grid, our solar energy is exported and we import the Grid energy. Hence they offset during daytime but not the night time when we have surplus from daytime generation.
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I think u get the wrong idea. U only sell surplus after u use what u produce. Not straight send all to Tnb.
Jo_da48
post Jan 3 2024, 02:16 PM

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QUOTE(etan26 @ Jan 3 2024, 11:13 AM)
No, during daytime we also get from the Grid, our solar energy is exported and we import the Grid energy. Hence they offset during daytime but not the night time when we have surplus from daytime generation.
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Nope. If your solar enough for day time, that the Export will be change not the Import. If your solar not enough than your Export not change but import will change since you are using TNB power due to not enough solar supply

etan26
post Jan 4 2024, 09:51 AM

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QUOTE(bee88 @ Jan 3 2024, 01:39 PM)
But daytime u didn’t use Tnb electricity. U use ur solar first. 

Try to check if ur meter for daytime got move or not. The reading for import. 01.
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We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.

This post has been edited by etan26: Jan 4 2024, 09:53 AM
etan26
post Jan 4 2024, 09:54 AM

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QUOTE(Jo_da48 @ Jan 3 2024, 02:16 PM)
Nope. If your solar enough for day time, that the Export will be change not the Import. If your solar not enough than your Export not change but import will change since you are using TNB power due to not enough solar supply
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We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.
etan26
post Jan 4 2024, 09:55 AM

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QUOTE(bee88 @ Jan 3 2024, 01:39 PM)
I think u get the wrong idea. U only sell surplus after u use what u produce. Not straight send all to Tnb.
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We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.
etan26
post Jan 4 2024, 09:56 AM

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Have you both experience TNB supply interruption after solar installation? Do you still have power supply? I have even wasted 1 day solar energy cause of that.

This post has been edited by etan26: Jan 4 2024, 09:58 AM
enduser
post Jan 4 2024, 10:22 AM

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QUOTE(etan26 @ Jan 4 2024, 09:51 AM)
We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.
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might be anti islanding feature of inverter
Its a safety function
etan26
post Jan 4 2024, 10:37 AM

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QUOTE(enduser @ Jan 4 2024, 10:22 AM)
might be anti islanding feature of inverter
Its a safety function
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I did asked my solar supplier before, we can't used our solar energy directly at this moment because the inverter can't cater for it.

Maybe in the future .... hopefully we can used it during blackout in the day time.

This post has been edited by etan26: Jan 4 2024, 10:40 AM
bee88
post Jan 4 2024, 10:39 AM

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QUOTE(etan26 @ Jan 4 2024, 09:55 AM)
We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.
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The solar db is connected to our house db. It’s not connected to the Tnb grid directly.

So it will be self consumption first, then extra will be sent out. This is confirmed.

Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore.

Also, one thing to consider. Ur system could be producing 1-2kw in the morning, before it peak, and at that time if u on aircond, maybe ur usage is more than 1-2kw, so the balance they draw from Tnb.

But when u peak at 10-12kw during afternoon, and ur appliances only run about 1-2kw, u will send the extra to them.


So the net import figure from the bill is from this kind of usage.


WhatMan
post Jan 4 2024, 10:41 AM

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QUOTE(darren486 @ Nov 9 2020, 01:04 PM)
Folks, anybody installed the solar panel for home? how much is the cost like? and maintenance ? got lubang?
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I got solar light for backyard. Main problem is if whole day cloudy, backyard will have no light at night.


bee88
post Jan 4 2024, 10:42 AM

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QUOTE(etan26 @ Jan 4 2024, 09:54 AM)
We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.
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U can try do this.

Check your inverter app for the total generation for December.

Let’s say 1200kwh

Then u compare with your export figure from Tnb bill for December.

It will be less than 1200kwh. For my case, it will be around 900-1000kwh

Where did the 200-300kwh go?

This means we have used the 200-300 units.

Analogy.
Ur farm produce 100 apples. U eat 30. So u can only sell 70.


etan26
post Jan 4 2024, 10:43 AM

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QUOTE(bee88 @ Jan 4 2024, 10:39 AM)
The solar db is connected to our house db. It’s not connected to the Tnb grid directly. 

So it will be self consumption first, then extra will be sent out. This is confirmed.

Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore.

Also, one thing to consider. Ur system could be producing 1-2kw in the morning, before it peak, and at that time if u on aircond, maybe ur usage is more than 1-2kw, so the balance they draw from Tnb.

But when u peak at 10-12kw during afternoon, and ur appliances only run about 1-2kw, u will send the extra to them. 
So the net import figure from the bill is from this kind of usage.
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If our inverted can do it, why can't during blackout period? Simply because our inverter cannot cater for direct usage.

Show me where its said this "Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore. "

I connect them to my 2nd floor DB ... So my ground floor not using solar energy? They do travel backward to the meter?

This post has been edited by etan26: Jan 4 2024, 10:50 AM
bee88
post Jan 4 2024, 10:44 AM

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QUOTE(etan26 @ Jan 4 2024, 10:37 AM)
I did asked my solar supplier before, we can't used our solar energy directly at this moment because the inverter can't cater for it.

Maybe in the future .... hopefully we can used it during blackout in the day time.
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No. As long as you don’t have the battery solution, u can’t straight use solar energy. Coz ur inverter need minimal power to start. And it is not stable to direct use anyway.

That’s why the solar db is connected to home db. And Tnb also connect to home db.

Then power come from two ways to your db.

If ur solar produce enough, the Tnb just a standby. If not it will top up. Especially in morning.
bee88
post Jan 4 2024, 10:45 AM

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QUOTE(etan26 @ Jan 4 2024, 10:43 AM)
If our inverted can do it, why can't during blackout period? Simply because our inverter cannot cater for direct usage.

Show me where its said this "Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore. "
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To be honest , sometimes solar supplier aren’t straight forward to explain everything to the consumer.

Last time, I was told ac dc conversion loss when it was clipping.
bee88
post Jan 4 2024, 10:47 AM

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QUOTE(etan26 @ Jan 4 2024, 10:43 AM)
If our inverted can do it, why can't during blackout period? Simply because our inverter cannot cater for direct usage.

Show me where its said this "Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore. "
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If you have a battery solution, the inverter will get the power from battery to continue the generation or else it will stop.

U try check ur home system.

If u switch off your home db, does your solar work?

For me, I switch off my home db, solar still work.

Coz I connect to incoming, not outgoing. Most setup connect to outgoing, not incoming.
Avangelice
post Jan 4 2024, 10:48 AM

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Can't I just connect solar panels to the ev charger without informing tnb/sesco? By my calculation to charge an ev I need 32 solar panels?
bee88
post Jan 4 2024, 10:50 AM

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QUOTE(Avangelice @ Jan 4 2024, 10:48 AM)
Can't I just connect solar panels to the ev charger without informing tnb/sesco? By my calculation to charge an ev I need 32 solar panels?
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U can try doing an offgrid system.

That means u need a battery solution. So thst u have a stable supply of electricity.
Jingle91
post Jan 4 2024, 10:51 AM

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QUOTE(bee88 @ Jan 4 2024, 10:42 AM)
U can try do this.

Check your inverter app for the total generation for December.

Let’s say 1200kwh

Then u compare with your export figure from Tnb bill for December.

It will be less than 1200kwh. For my case, it will be around 900-1000kwh

Where did the 200-300kwh go?

This means we have used the 200-300 units.

Analogy.
Ur farm produce 100 apples. U eat 30. So u can only sell 70.
*
Your solar is under which NEM? If NEM 3.0 then definitely your understanding is totally wrong, the extra 200-300kwh is accumulated in your NEM BAKI ACCOUNT balance until 31 Dec of the year, if you don't consume it within the period, TNB will write off the extra balance in next year January bill.

Mine is TNB 3.0 like the other guy explained to you

Checked your TNB bill, think your December 2023 Bill now appear with "NIL" amount of NEM BAKI, maybe you check your November 2023 TNB bill then you will understand

This post has been edited by Jingle91: Jan 4 2024, 10:54 AM
bee88
post Jan 4 2024, 10:53 AM

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QUOTE(Jingle91 @ Jan 4 2024, 10:51 AM)
Your solar is under which NEM? If NEM 3.0 then definitely your understanding is totally wrong, the extra 200-300kwh is accumulated in your NEM BAKI ACCOUNT balance until 31 Dec of the year, if you don't consume it within the period, TNB will write off the extra balance in next year January bill.

Mine is TNB 3.0 like the other guy explained to you
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No lah. No nem Baki.
Nem Baki is when ur export more than import.


It under nem 3.0.
bee88
post Jan 4 2024, 10:57 AM

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QUOTE(Jingle91 @ Jan 4 2024, 10:51 AM)
Your solar is under which NEM? If NEM 3.0 then definitely your understanding is totally wrong, the extra 200-300kwh is accumulated in your NEM BAKI ACCOUNT balance until 31 Dec of the year, if you don't consume it within the period, TNB will write off the extra balance in next year January bill.

Mine is TNB 3.0 like the other guy explained to you

Checked your TNB bill, think your December 2023 Bill now appear with "NIL" amount of NEM BAKI, maybe you check your November 2023 TNB bill then you will understand
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Yes. Check dy.

My calculation is correct. The 200-300 of missing export isn’t going to nem Baki. The one went to nem Baki is when my export more than import like a few kWh

If you check out nem program , it is defined as below

Under this programme, any excess energy generated will be exported to the utility grid and will be credited based on the Average SMP. The priority is for self-consumption, however some premise which are not operating during the weekends or public holiday may have excess energy exported to the grid.

etan26
post Jan 4 2024, 10:58 AM

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QUOTE(bee88 @ Jan 4 2024, 10:42 AM)
U can try do this.

Check your inverter app for the total generation for December.

Let’s say 1200kwh

Then u compare with your export figure from Tnb bill for December.

It will be less than 1200kwh. For my case, it will be around 900-1000kwh

Where did the 200-300kwh go?

This means we have used the 200-300 units.

Analogy.
Ur farm produce 100 apples. U eat 30. So u can only sell 70.
*
Yes we do used the generated kwh during day time but it's to offset TNB import in figures.

I am sure we can't used it directly because the TNB meter not that smart to balance the usage between import and export energy used by our home appliances fluctuation. . It can offset the number je.....


bee88
post Jan 4 2024, 10:59 AM

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QUOTE(Jingle91 @ Jan 4 2024, 10:51 AM)
Your solar is under which NEM? If NEM 3.0 then definitely your understanding is totally wrong, the extra 200-300kwh is accumulated in your NEM BAKI ACCOUNT balance until 31 Dec of the year, if you don't consume it within the period, TNB will write off the extra balance in next year January bill.

Mine is TNB 3.0 like the other guy explained to you

Checked your TNB bill, think your December 2023 Bill now appear with "NIL" amount of NEM BAKI, maybe you check your November 2023 TNB bill then you will understand
*
You try this

December production from inverter app: ________
December export figure from Tnb bill : __________

Surely the difference will not be the same as ur nem Baki.
bee88
post Jan 4 2024, 11:02 AM

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QUOTE(etan26 @ Jan 4 2024, 10:58 AM)
Yes we do used the generated kwh during day time but it's to offset TNB import in figures.

I am sure we can't used it directly because the TNB meter not that smart to balance the usage between import and export energy used by our home appliances fluctuation. . It can offset the number je.....
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Actually, our db get supply from both ac supplies. Tnb direct and solar db.

So once Both ac meets in the home db, it will be used together. But because solar db is one way. And Tnb is two way. So solar db electricity that lebih will flow out through Tnb meter and get recorded. And ur system won’t draw specifically from Tnb. It will just use whatever energy supply from the solar db and the Tnb. So when ur solar db electricity flood the system, the Tnb meter won’t send in anymore. Coz got extra flow out.
yushin
post Jan 4 2024, 11:10 AM

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QUOTE(Avangelice @ Jan 4 2024, 10:48 AM)
Can't I just connect solar panels to the ev charger without informing tnb/sesco? By my calculation to charge an ev I need 32 solar panels?
*
Power coming out from solar panels are DC.
Your EV charger is drawing power from AC.

1) you need something to convert DC to AC.
2) you also need extra energy source to stabilize the AC output in case the solar panel was block by cloud for a short time.

If you dont plan to use TNB's plan, a hybrid inverter with 48v 50ah lithium battery should be enough if you only do charging at morning.
btw, how big is your EV charger?
bee88
post Jan 4 2024, 11:12 AM

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QUOTE(yushin @ Jan 4 2024, 11:10 AM)
Power coming out from solar panels are DC.
Your EV charger is drawing power from AC.

1) you need something to convert DC to AC.
2) you also need extra energy source to stabilize the AC output in case the solar panel was block by cloud for a short time.

If you dont plan to use TNB's plan, a hybrid inverter with 48v 50ah lithium battery should be enough if you only do charging at morning.
btw, how big is your EV charger?
*
Correct. Need a constant supply. So battery is another alternative. But since got nem, just use nem first. Battery can come later stage.
bee88
post Jan 4 2024, 11:17 AM

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QUOTE(etan26 @ Jan 4 2024, 10:43 AM)
If our inverted can do it, why can't during blackout period? Simply because our inverter cannot cater for direct usage.

Show me where its said this "Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore. "

I connect them to my 2nd floor DB ... So my ground floor not using solar energy? They do travel backward to the meter?
*
U see. You connect to 2 floor db. So the energy source come from 2nd floor. It’s not even direct to Tnb.

So ur 2nd floor will use the energy first. Then extra go back to main db. And then get istributed to the appliance. Then extra flow back to Tnb.

But doesn’t mean ur ground floor will use Tnb energy first. You still use solar for self consumption first before any extra is send out.

When cloudy day, not enough producing , that’s when Tnb kicks in. That’s the way how on grid inverter works.
Avangelice
post Jan 4 2024, 11:20 AM

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QUOTE(yushin @ Jan 4 2024, 11:10 AM)
Power coming out from solar panels are DC.
Your EV charger is drawing power from AC.

1) you need something to convert DC to AC.
2) you also need extra energy source to stabilize the AC output in case the solar panel was block by cloud for a short time.

If you dont plan to use TNB's plan, a hybrid inverter with 48v 50ah lithium battery should be enough if you only do charging at morning.
btw, how big is your EV charger?
*
I don't have an ev yet but the only factor in me getting it is to charge it solely on solar. It defeats the purpose of having a clean car if I'm using it via the grid so I want to get th facts right with solar panels
upcars
post Jan 4 2024, 11:22 AM

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QUOTE(yushin @ Jan 4 2024, 11:10 AM)
Power coming out from solar panels are DC.
Your EV charger is drawing power from AC.

1) you need something to convert DC to AC.
2) you also need extra energy source to stabilize the AC output in case the solar panel was block by cloud for a short time.

If you dont plan to use TNB's plan, a hybrid inverter with 48v 50ah lithium battery should be enough if you only do charging at morning.
btw, how big is your EV charger?
*
most ev wallbox chargers are dc.
only those hybrid use AC plug like merc 350e and some bmw's 3 series hybrid.


Avangelice
post Jan 4 2024, 11:23 AM

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QUOTE(yushin @ Jan 4 2024, 11:10 AM)
Power coming out from solar panels are DC.
Your EV charger is drawing power from AC.

1) you need something to convert DC to AC.
2) you also need extra energy source to stabilize the AC output in case the solar panel was block by cloud for a short time.

If you dont plan to use TNB's plan, a hybrid inverter with 48v 50ah lithium battery should be enough if you only do charging at morning.
btw, how big is your EV charger?
*
QUOTE(bee88 @ Jan 4 2024, 11:12 AM)
Correct. Need a constant supply. So battery is another alternative. But since got nem, just use nem first. Battery can come later stage.
*
So to really ensure my ev is powered by solar and off grid my set up is this?

Solar panels (DC) > battery > wall mounted charger (ac) > ev?

If I don't wanna spend on a battery

Solar panels (DC) > converter > wall mounted charger (ac) > ev?

Second set up only allows me to charge during day time only right?
bee88
post Jan 4 2024, 11:26 AM

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One more test you can try do.

7am import figure : ______
7am export figure:_______

7pm import figure : _______
7pm export figure::_______

Total of the production of the day :________

bee88
post Jan 4 2024, 11:27 AM

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QUOTE(Avangelice @ Jan 4 2024, 11:20 AM)
I don't have an ev yet but the only factor in me getting it is to charge it solely on solar. It defeats the purpose of having a clean car if I'm using it via the grid so I want to get th facts right with solar panels
*
Then you get solar first. Then ev. Not ev then solar.


bee88
post Jan 4 2024, 11:27 AM

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QUOTE(Avangelice @ Jan 4 2024, 11:23 AM)
So to really ensure my ev is powered by solar and off grid my set up is this?

Solar panels (DC) > battery > wall mounted charger (ac) > ev?

If I don't wanna spend on a battery

Solar panels (DC) > converter > wall mounted charger (ac) > ev?

Second set up only allows me to charge during day time only right?
*
No. The voltage is volatile. U will depend too much on the weather.
yushin
post Jan 4 2024, 11:28 AM

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QUOTE(upcars @ Jan 4 2024, 11:22 AM)
most ev wallbox chargers are dc.
only those hybrid use AC plug like merc 350e and some bmw's 3 series hybrid.
*
I don't have EV charger myself but I believes those wall box EV charger draw power from TNB (230v) then convert to DC (800v) to charge the car.
bee88
post Jan 4 2024, 11:29 AM

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QUOTE(yushin @ Jan 4 2024, 11:28 AM)
I don't have EV charger myself  but I believes those wall box EV charger draw power from TNB (230v) then convert to DC (800v) to charge the car.
*
If not mistaken, wall box is also ac.

It’s either 7kwp(single phase)
11kw or 22kwp (3 phase)

bee88
post Jan 4 2024, 11:30 AM

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QUOTE(bee88 @ Jan 4 2024, 11:29 AM)
If not mistaken, wall box is also ac.

It’s either 7kwp(single phase)
11kw or 22kwp (3 phase)
*
Some ev car can only take 7kwh ac.

And dc charger at home I heard very very expensive.
Avangelice
post Jan 4 2024, 11:32 AM

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QUOTE(bee88 @ Jan 4 2024, 11:27 AM)
Then you get solar first. Then ev. Not ev then solar.
*
QUOTE(bee88 @ Jan 4 2024, 11:27 AM)
No. The voltage is volatile. U will depend too much on the weather.
*
Agree. Solar first but the cost of set up for 10 panels around 15k

But since I have a battery in the system. I can reduce the panels.... Right?


bee88
post Jan 4 2024, 11:34 AM

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QUOTE(Avangelice @ Jan 4 2024, 11:32 AM)
Agree. Solar first but the cost of set up for 10 panels around 15k

But since I have a battery in the system. I can reduce the panels.... Right?
*
U must see how many kwp your system. But don’t go for battery lah. Go for nem.
yushin
post Jan 4 2024, 11:34 AM

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QUOTE(Avangelice @ Jan 4 2024, 11:23 AM)
So to really ensure my ev is powered by solar and off grid my set up is this?

Solar panels (DC) > battery > wall mounted charger (ac) > ev?

If I don't wanna spend on a battery

Solar panels (DC) > converter > wall mounted charger (ac) > ev?

Second set up only allows me to charge during day time only right?
*
If you go offrid you need battery to help stabilize the inverter. There are some hybrid inverter that claim they can work without battery la... but I worry invester will die fast without battery to stabilize the inverter circuit.

Solar Panel (DC) > Offgrid Inverter with battery > Wall mounter EV charger (AC) > EV

Actually there is a type of hybrid inverter that uses TNB power to fill up the gap in time where your panel got block by sun, then you no need battery.

This post has been edited by yushin: Jan 4 2024, 11:35 AM
yushin
post Jan 4 2024, 11:41 AM

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QUOTE(Avangelice @ Jan 4 2024, 11:32 AM)
Agree. Solar first but the cost of set up for 10 panels around 15k

But since I have a battery in the system. I can reduce the panels.... Right?
*
You need to check what power you actually need then only calculate the panels.


etan26
post Jan 4 2024, 11:42 AM

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QUOTE(bee88 @ Jan 4 2024, 11:17 AM)
U see. You connect to 2 floor db. So the energy source come from 2nd floor. It’s not even direct to Tnb.

So ur 2nd floor will use the energy first. Then extra go back to main db. And then get istributed to the appliance.  Then extra flow back to Tnb.

But doesn’t mean ur ground floor will use Tnb energy first. You still use solar for self consumption first before any extra is send out.

When cloudy day, not enough producing , that’s when Tnb kicks in.  That’s the way how on grid inverter works.
*
If there is a kick in, there will be an interruption. All dbs draw their power directly from TNB source.

My ground db trip, the 2nd floor not affected.
etan26
post Jan 4 2024, 11:53 AM

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Can we use direct power from solar panel?

Yes, it is possible to use a direct solar panel output to run home AC appliances by adding a solar charge controller connected to a 12V battery. The solar charge controller regulates the voltage and current from the solar panels to charge the battery.
Boy96
post Jan 4 2024, 11:59 AM

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QUOTE(etan26 @ Jan 4 2024, 11:53 AM)
Can we use direct power from solar panel?

Yes, it is possible to use a direct solar panel output to run home AC appliances by adding a solar charge controller connected to a 12V battery. The solar charge controller regulates the voltage and current from the solar panels to charge the battery.
*
Overseas people they use a Zappi EV charger to take directly from Solar
kitzai
post Jan 4 2024, 12:01 PM

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QUOTE(empire @ Nov 9 2020, 01:12 PM)
SOLAR PANELS deteriorate after a few years. Dont expect the solar panels to be as efficient as it is like on the first day after 4-5 years.
The Battery also deteriorates after a few years...and they wont be able to hold the charge long.

It is an expensive route to take.  Dont bother.
*
That's true. Plus you only "break-even" years later minus your installation cost etc.
So don't bother. If wanna save just find *cough any elec kaotim *cough ehem.

But I do have the solar water heating, now this is best.



etan26
post Jan 4 2024, 12:10 PM

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Related
Can we use solar panels and electricity at the same time?
Yes, that's how they work.

Any electrical loads in your house will draw their power from your solar panels if it's available. Any excess power your solar array is generating will flow back out into the grid. If you're using more than your panels can supply the shortfall will be pulled in from the grid.

All this happens automatically. You don't have to do anything.

You could be correct .... i rest my case.
etan26
post Jan 4 2024, 12:24 PM

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QUOTE(kitzai @ Jan 4 2024, 12:01 PM)
That's true. Plus you only "break-even" years later minus your installation cost etc.
So don't bother. If wanna save just find *cough any elec kaotim *cough ehem.

But I do have the solar water heating, now this is best.
*
If you have low usage, don't bother.
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post Jan 4 2024, 12:31 PM

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QUOTE(bee88 @ Jan 4 2024, 11:30 AM)
Some ev car can only take 7kwh ac.

And dc charger at home I heard very very expensive.
*
DC 50kw probably cost 100k plus cabling and installation
yeapsc73
post Jan 4 2024, 12:33 PM

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QUOTE(bee88 @ Jan 4 2024, 11:34 AM)
U must see how many kwp your system.  But don’t go for battery lah. Go for nem.
*
NEM out of quotas at the moment need to wait for government refresh, but dont know when will this happen
yeapsc73
post Jan 4 2024, 12:44 PM

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QUOTE(etan26 @ Jan 4 2024, 09:54 AM)
We can't directly used our solar, we export it. That's why when got TNB supply interruption we don't have any power.
*
not true. i purposely try to charge my ev during noon time. while charging, the tnb incoming kwh reading didnt move at all.

of course i set the charging current at minimum (5A 3 phase, or about 3kw) while the solar generation is about 5kw at that time which can fully cover the ev charging capacity
Jingle91
post Jan 4 2024, 02:24 PM

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QUOTE(bee88 @ Jan 4 2024, 10:59 AM)
You try this

December production from inverter app: ________
December export figure from Tnb bill : __________

Surely the difference will not be the same as ur nem Baki.
*
Sorry, I misunderstood your earlier post, thought you meant the difference of units went missing.

Yes my generated units in solar app has been higher than the export unit recorded on the bill.


My apology for didn't read the post properly.
bee88
post Jan 4 2024, 07:15 PM

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QUOTE(Jingle91 @ Jan 4 2024, 02:24 PM)
Sorry, I misunderstood your earlier post, thought you meant the difference of units went missing.

Yes my generated units in solar app has been higher than the  export unit recorded on the bill.
My apology for didn't read the post properly.
*
No worries. I know those explanation by solar provider mostly cannot pakai one. Those selling the products don’t really know except telling u how much u save. Technical staff u need to ask those wireman that come to install.

I also got lots of misinformation from solar provider when I scouted for my system.
eagle7
post Jan 5 2024, 03:23 PM

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To the solar owner, in case you would like to monitor your solar generation, grid, and load in realtime (mobile app only), you can consider installing this bidirectional energy monitor (https://expo.tuya.com/product/1105297 , from Shopee or Lazada). NOTE: This is for a single-phase house.

I will recommend an energy monitor with 2 CT, where the 1st CT (current transformer) monitors the TNB input (as Channel A), while the 2nd CT (as Channel B) can either monitor your load or solar wire (subject to the complexity of your wiring). For simplicity, monitor the solar AC input. Channel C is derived from Channel A and Channel B.

For example:-
Channel A: TNB input
Channel B: Solar input
Channel C: Channel A + Channel B = Load/Consumption

NOTE: The above works well if both TNB and solar input meet in the same DB box; otherwise, you will need 2 units of energy monitors, for example, one for the TNB on the ground floor and a second monitor unit on the 2nd or 3rd floor where your solar inverter is connected.

For smart home users using Home Assistant, this energy meter does not give valuable (limited) data for plotting graphical energy flow between grid, solar, and load.




eagle7
post Jan 5 2024, 03:35 PM

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QUOTE(Avangelice @ Jan 4 2024, 11:23 AM)
So to really ensure my ev is powered by solar and off grid my set up is this?

Solar panels (DC) > battery > wall mounted charger (ac) > ev?

If I don't wanna spend on a battery

Solar panels (DC) > converter > wall mounted charger (ac) > ev?

Second set up only allows me to charge during day time only right?
*
Do a Google search on Smart EV charger and you will find an EV charger where it will monitor your grid export and charge your car accordingly.
Jo_da48
post Jan 6 2024, 02:59 PM

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below is what the ST Standard for EV charger. It need go out after the main RCCB

user posted image

Below the ST standard for Solar, you could see solar arrived at the DB and supply into the house before involved the TNB meter (import / export).
For safety reasn when house current is cut, solar need to cut as well. else may risk on peoples who do the work


user posted image

Here another explaination from TNB

user posted image

Hope this help.
Jo_da48
post Jan 6 2024, 03:47 PM

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A good YouTube for ease of understanding

https://www.youtube.com/watch?v=_VlxzDXtKuM

Bigboyz
post Jan 6 2024, 08:29 PM

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Hi sifus. I was proposed bifacial solar panel for a tiled rooftop installation. However, based on my understanding, to maximize bifacial gains, you would need to install the panels on an elevated racking system to allow the back panels to capture light. Would I be better off installing non bifacial panels?
bee88
post Jan 7 2024, 01:04 PM

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QUOTE(Bigboyz @ Jan 6 2024, 08:29 PM)
Hi sifus. I was proposed bifacial solar panel for a tiled rooftop installation. However, based on my understanding, to maximize bifacial gains, you would need to install the panels on an elevated racking system to allow the back panels to capture light. Would I be better off installing non bifacial panels?
*
If not mistaken, this is the current panels that they are trying to push. What is more important is your setup and the kwp.
Drian
post Jan 7 2024, 01:39 PM

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QUOTE(etan26 @ Jan 3 2024, 11:13 AM)
No, during daytime we also get from the Grid, our solar energy is exported and we import the Grid energy. Hence they offset during daytime but not the night time when we have surplus from daytime generation.
*

The 1500kwhr, if you get it from the grid you will be charged extra. They don't calculate nett Export -Import , they just calculate what you get from the grid.




Drian
post Jan 7 2024, 01:43 PM

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QUOTE(bee88 @ Jan 4 2024, 10:39 AM)
The solar db is connected to our house db. It’s not connected to the Tnb grid directly. 

So it will be self consumption first, then extra will be sent out. This is confirmed.

Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore.

Also, one thing to consider. Ur system could be producing 1-2kw in the morning, before it peak, and at that time if u on aircond, maybe ur usage is more than 1-2kw, so the balance they draw from Tnb.

But when u peak at 10-12kw during afternoon, and ur appliances only run about 1-2kw, u will send the extra to them. 
So the net import figure from the bill is from this kind of usage.
*
No , you have to consider whether your inverter is a 3 phase inverter or a single phase inverter.

Most installer want to sell cheap , and consumers do not know , so they only use single phase inverter. If it is single phase inverter, the inverter will only offset one of the phases. It does not offset all phases.
The other 2 phases will not be offset during the day time and continue to consume from the grid.

That's why when the1500kwhr ruling came out , some of the solar owners were charged because they were still using 1500kwhr from the grid.






Drian
post Jan 7 2024, 01:46 PM

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QUOTE(etan26 @ Jan 4 2024, 10:43 AM)
If our inverted can do it, why can't during blackout period? Simply because our inverter cannot cater for direct usage.

Show me where its said this "Yes, u need to have Tnb supply to start generation. But that only to start. Once ur system produce enough, u don’t draw from Tnb anymore. "

I connect them to my 2nd floor DB ... So my ground floor not using solar energy? They do travel backward to the meter?
*
it's for safety , your inverter is connected directly to grid .

https://www.solar-electric.com/learning-cen...to%20the%20grid.
Drian
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QUOTE(Avangelice @ Jan 4 2024, 10:48 AM)
Can't I just connect solar panels to the ev charger without informing tnb/sesco? By my calculation to charge an ev I need 32 solar panels?
*
Can , setup an offgrid system but it is kind of sily to do this.


bee88
post Jan 7 2024, 01:49 PM

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QUOTE(Drian @ Jan 7 2024, 01:43 PM)
No , you have to consider whether your inverter is a 3 phase inverter or a single phase inverter.

Most installer want to sell cheap , and consumers do not know , so they only use single phase inverter. If it is single phase inverter, the inverter will only offset one of the phases. It does not offset all phases.
The other 2 phases will not be offset during the day time and continue to consume from the grid.

That's why when the1500kwhr ruling came out , some of the solar owners were charged because they were still using 1500kwhr from the grid.
*
Actuallu it’s possible to offset all 3 phase with single phase inverter.

Not sure if this is possible with string inverter. Micro is possible.
etan26
post Jan 7 2024, 01:49 PM

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QUOTE(Drian @ Jan 7 2024, 01:39 PM)
The 1500kwhr, if you get it from the grid you will be charged extra. They don't calculate nett Export -Import , they just calculate what you get from the grid.
*
That's why we are appealing now, cause got surplus during daytime.
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post Jan 7 2024, 01:50 PM

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QUOTE(eagle7 @ Jan 5 2024, 03:23 PM)
To the solar owner, in case you would like to monitor your solar generation, grid, and load in realtime (mobile app only), you can consider installing this bidirectional energy monitor (https://expo.tuya.com/product/1105297 , from Shopee or Lazada).  NOTE: This is for a single-phase house.

I will recommend an energy monitor with 2 CT, where the 1st CT (current transformer) monitors the TNB input (as Channel A), while the 2nd CT (as Channel B) can either monitor your load or solar wire (subject to the complexity of your wiring). For simplicity, monitor the solar AC input. Channel C is derived from Channel A and Channel B.

For example:-
Channel A: TNB input
Channel B: Solar input
Channel C: Channel A + Channel B = Load/Consumption

NOTE: The above works well if both TNB and solar input meet in the same DB box; otherwise, you will need 2 units of energy monitors, for example, one for the TNB on the ground floor and a second monitor unit on the 2nd or 3rd floor where your solar inverter is connected.

For smart home users using Home Assistant, this energy meter does not give valuable (limited) data for plotting graphical energy flow between grid, solar, and load.
*
I use shelley, works as well.
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post Jan 7 2024, 01:52 PM

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QUOTE(bee88 @ Jan 7 2024, 01:49 PM)
Actuallu it’s possible to offset all 3 phase with single phase inverter. 

Not sure if this is possible with string inverter. Micro is possible.
*
a micro inverter does not offset all 3 phases at the same time.

but you can assign different microinverter to different phases , but a single microinverter DO NOT offset all 3 phases a the same time.

bee88
post Jan 7 2024, 01:56 PM

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QUOTE(Drian @ Jan 7 2024, 01:52 PM)
a micro inverter does not offset all 3 phases at the same time.

but you can assign different microinverter to different phases , but a single microinverter DO NOT offset all 3 phases a the same time.
*
Yes. Correct. But usually nobody use one micro inverter only. One micro inverter max only 2kw. Usually smallest setup need two microinverter.


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post Jan 7 2024, 01:56 PM

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QUOTE(Drian @ Jan 7 2024, 01:43 PM)
No , you have to consider whether your inverter is a 3 phase inverter or a single phase inverter.

Most installer want to sell cheap , and consumers do not know , so they only use single phase inverter. If it is single phase inverter, the inverter will only offset one of the phases. It does not offset all phases.
The other 2 phases will not be offset during the day time and continue to consume from the grid.

That's why when the1500kwhr ruling came out , some of the solar owners were charged because they were still using 1500kwhr from the grid.
*
Then you go and whack your solar vendor/installer, they are the expert and not advising you properly.
bee88
post Jan 7 2024, 02:00 PM

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QUOTE(etan26 @ Jan 7 2024, 01:56 PM)
Then you go and whack your solar vendor/installer, they are the expert and not advising you properly.
*
Usually they will use the correct inverter according to the phases. Later no saving kena diao from customer ler.
Drian
post Jan 7 2024, 02:11 PM

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QUOTE(etan26 @ Jan 7 2024, 01:56 PM)
Then you go and whack your solar vendor/installer, they are the expert and not advising you properly.
*
Probably 95% of the solar system is using single phase inverter now . I had to deliberately ask for 3 phase inverter. They did not advise me.





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post Jan 7 2024, 02:12 PM

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QUOTE(bee88 @ Jan 7 2024, 02:00 PM)
Usually they will use the correct inverter according to the phases. Later no saving kena diao from customer ler.
*
Nope. Most inverter sold now is single phase inverter connected to only a single phase in a 3 phase system.
bee88
post Jan 7 2024, 02:14 PM

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QUOTE(Drian @ Jan 7 2024, 02:12 PM)
Nope.  Most inverter sold now is single phase inverter connected to only a single phase in a 3 phase system.
*
Like that one ar? Then more reason to go micro inverter then. String inverter if get single phase but house 3 phase mmg jialat
etan26
post Jan 7 2024, 02:28 PM

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QUOTE(Drian @ Jan 7 2024, 02:12 PM)
Nope.  Most inverter sold now is single phase inverter connected to only a single phase in a 3 phase system.
*
Solar companies not doing the right job, please name them so we will avoid them in future.
etan26
post Jan 7 2024, 02:34 PM

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QUOTE(Drian @ Jan 7 2024, 02:11 PM)
Probably 95% of the solar system is using single phase inverter now . I had to deliberately ask for 3 phase inverter. They did not advise me.
*
Unless your house is single phase else there is no logic, right?

Company reputation at stake wor ... who in the right mind would do this?

This post has been edited by etan26: Jan 7 2024, 02:37 PM
Drian
post Jan 7 2024, 03:11 PM

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QUOTE(etan26 @ Jan 7 2024, 02:34 PM)
Unless your house is single phase else there is no logic, right?

Company reputation at stake wor ... who in the right mind would do this?
*
The logic is single phase inverter is cheaper and that the inverter does not need to offset all phases since any export in the single phase will be use as credit for the other 2 phases.

Also 99% of consumers do not even know (like 90% of /k) that single phase and 3 phase inverter exist . They think inverter is just an inverter.
They just look at total installation cost without looking at inverter specs.

This post has been edited by Drian: Jan 7 2024, 04:13 PM
etan26
post Jan 7 2024, 08:48 PM

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QUOTE(Drian @ Jan 7 2024, 03:11 PM)
The logic is single phase inverter is cheaper and that the inverter does not need to offset all phases since any export in the single phase will be use as credit for the other 2 phases.

Also 99% of consumers do not even know (like  90% of /k) that single phase and 3 phase inverter exist . They think inverter is just an inverter.
They just look at total installation cost without looking at inverter specs.
*
If I am the user, you know i do if I found out this issue? The solar company will get reported to the ministry due to incompetence for product sales. This is a serious issue and the company can be hauled up.

Drian
post Jan 8 2024, 10:42 AM

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QUOTE(etan26 @ Jan 7 2024, 08:48 PM)
If I am the user, you know i do if I found out this issue? The solar company will get reported to the ministry due to incompetence for product sales. This is a serious issue and the company can be hauled up.
*
No because it is all clearly stated in the quotation and there is no safety issue violated.
They can argue that they are meeting your budget and the model and brand name is all black and white in the quotation.



If the quotation looks like this:-

3. Solar PV Module
+ Trinasolar TSM-DE17M(II)-455W / Canadian Solar CS3W-455MS X14 units

4. Solar PV Inverter
+ Solis Inverter 1P6K-4G x1unit

How many people here will notice this? How many people are technical enough to realise based on above that this is a single phase inverter?
How many people do you think even have the knowledge to know even what an inverter is?

The same also for solar panels . How many people will realise if the solar panels given is tier 1 or tier 2 panels.

This post has been edited by Drian: Jan 8 2024, 10:57 AM
ronnie
post Jan 8 2024, 11:13 AM

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user posted image

Google for it...and clarify

etan26
post Jan 8 2024, 12:02 PM

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QUOTE(Drian @ Jan 8 2024, 10:42 AM)
No because it is all clearly stated in the quotation and there is no safety issue violated.
They can argue that they are meeting your budget and the model and brand name is all black and white in the quotation.
If the quotation looks like this:-

3. Solar PV Module
+ Trinasolar TSM-DE17M(II)-455W / Canadian Solar CS3W-455MS     X14 units

4. Solar PV Inverter
+ Solis Inverter 1P6K-4G         x1unit

How many people here will notice this? How many people are technical enough to realise based on above that this is a single phase inverter?
How many people do you think even have the knowledge to know even what an inverter is?

The same also for solar panels . How many people will realise if the solar panels given is tier 1 or tier 2 panels.
*
Like you have said before, they are awared of short coming yet still give you the wrong advice. Like it or not to me this is a fraud.

They are supposed to propose a solution, a proper one that is. Unless they gave 2 options then you choose the cheaper one.

This post has been edited by etan26: Jan 8 2024, 12:04 PM
Jo_da48
post Jan 8 2024, 01:38 PM

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QUOTE(Drian @ Jan 7 2024, 01:43 PM)
No , you have to consider whether your inverter is a 3 phase inverter or a single phase inverter.

Most installer want to sell cheap , and consumers do not know , so they only use single phase inverter. If it is single phase inverter, the inverter will only offset one of the phases. It does not offset all phases.
The other 2 phases will not be offset during the day time and continue to consume from the grid.

That's why when the1500kwhr ruling came out , some of the solar owners were charged because they were still using 1500kwhr from the grid.
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Good question...i actually checked and seems like my was 3 phase output (On grip) (Huawei Sun2000-8ktl-m1)
bee88
post Jan 8 2024, 01:55 PM

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QUOTE(Drian @ Jan 8 2024, 10:42 AM)
No because it is all clearly stated in the quotation and there is no safety issue violated.
They can argue that they are meeting your budget and the model and brand name is all black and white in the quotation.
If the quotation looks like this:-

3. Solar PV Module
+ Trinasolar TSM-DE17M(II)-455W / Canadian Solar CS3W-455MS    X14 units

4. Solar PV Inverter
+ Solis Inverter 1P6K-4G        x1unit

How many people here will notice this? How many people are technical enough to realise based on above that this is a single phase inverter?
How many people do you think even have the knowledge to know even what an inverter is?

The same also for solar panels . How many people will realise if the solar panels given is tier 1 or tier 2 panels.
*
Yes. Many people just buy without looking at what they actually getting. Coz the agent usually just highlight the savings and savings.

From this quotation, i think this is usually for single phase. 6kwp system usually for single phase max.

Of course there is a possibility that a 3 phase house is installing 6kwp system as well lah.

But yea. Look at the inverter model. 1p means 1 phase. 3p means 3 phase.

But I will still avoid string if possible due to high dc and arc fault which can cause fire.

Drian
post Jan 9 2024, 11:16 AM

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QUOTE(etan26 @ Jan 8 2024, 12:02 PM)
Like you have said before, they are awared of short coming yet still give you the wrong advice. Like it or not to me this is a fraud.

They are supposed to propose a solution, a proper one that is. Unless they gave 2 options then you choose the cheaper one.
*
You can think is fraud, but you'll never be able to sue.
Thousands of wrong advice in the financial world, wrong country policies nobody can sue.
Do you really think that a black ands white quotation you can sue for fraud. They will just counter you back , why you didn't ask and just assume.





Drian
post Jan 9 2024, 11:16 AM

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QUOTE(bee88 @ Jan 8 2024, 01:55 PM)
Yes. Many people just buy without looking at what they actually getting. Coz the agent usually just highlight the savings and savings.

From this quotation, i think this  is usually for single phase. 6kwp system usually for single phase max.

Of course there is a possibility that a 3 phase house is installing 6kwp system as well lah.

But yea. Look at the inverter model. 1p means 1 phase. 3p means 3 phase.

But I will still avoid string if possible due to high dc and arc fault which can cause fire.
*
This quotation is for a 3 phase sytem.
killeralta
post Jan 9 2024, 02:59 PM

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I recently finished my solar installation using hoymiles micro-inverter.

But installer does not want to provide me with the end user username and password for hoymiles s-Miles monitoring app system saying its only for there own usage. Instead have to rely on there own app for monitoring with minimum info.

You think i can go to consumer tribunal to force them to give me the access to hoymiles s-Miles monitoring app?

etan26
post Jan 9 2024, 09:09 PM

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QUOTE(Drian @ Jan 9 2024, 11:16 AM)
You can think is fraud, but you'll never be able to sue.
Thousands of wrong advice in the financial world, wrong country policies nobody can sue.
Do you really think that a black ands white quotation you can sue for fraud. They will just counter you back , why you didn't ask and just assume.
*
I always enquired with my sales consultant regarding the solar setup before finalizing else you got misinformation. If what you asked is not what you get then pls go to tribunal court.

The solar company name is at stake. Btw don't get yourself confused with financial world ya.
etan26
post Jan 9 2024, 09:19 PM

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QUOTE(Drian @ Jan 8 2024, 10:42 AM)
No because it is all clearly stated in the quotation and there is no safety issue violated.
They can argue that they are meeting your budget and the model and brand name is all black and white in the quotation.
If the quotation looks like this:-

3. Solar PV Module
+ Trinasolar TSM-DE17M(II)-455W / Canadian Solar CS3W-455MS     X14 units

4. Solar PV Inverter
+ Solis Inverter 1P6K-4G         x1unit

How many people here will notice this? How many people are technical enough to realise based on above that this is a single phase inverter?
How many people do you think even have the knowledge to know even what an inverter is?


The same also for solar panels . How many people will realise if the solar panels given is tier 1 or tier 2 panels.
*
If you buy blindly without due diligent, then no one to blame. The product not just cost a few thousands but tens of thousands.

The way you talk as if the whole country only you know how solar works...... adui... hahaha
You keep repeating how ignorant others are .... maybe you right ...haha

This post has been edited by etan26: Jan 9 2024, 09:29 PM
Drian
post Jan 10 2024, 08:43 AM

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QUOTE(etan26 @ Jan 9 2024, 09:09 PM)
I always enquired with my sales consultant regarding the solar setup before finalizing else you got misinformation. If what you asked is not what you get then pls go to tribunal court.

The solar company name is at stake. Btw don't get yourself confused with financial world ya.
*
Nobody ask specifically for a 3 phase inverter.
They will ask for a quotation for solar, based on roof size and electric bill.

If you ask for a 3 phase inverter and sales consultant lied to you that is a different story.
In this case if you didn't specifically ask for a 3 phase inverter and you receive this quotation and if you accept it without checking, then the burden is on you.

This post has been edited by Drian: Jan 10 2024, 08:44 AM
etan26
post Jan 10 2024, 08:49 AM

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QUOTE(Drian @ Jan 10 2024, 08:43 AM)
Nobody ask specifically for a 3 phase inverter.
They will ask for a quotation for solar, based on roof size and electric bill.

If you ask for a 3 phase inverter and sales consultant lied to you that is a different story.
In this case if you didn't specifically ask for a 3 phase inverter and you receive this quotation and if you accept it without checking, then the burden is on you.
*
Are saying they gave single phase inverter to 3 phase user? If all worked fine, I guess it;s fine then.

This post has been edited by etan26: Jan 10 2024, 08:55 AM
eagle7
post Jan 10 2024, 04:37 PM

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QUOTE(etan26 @ Jan 10 2024, 08:49 AM)
Are saying they gave single phase inverter to 3 phase user? If all worked fine, I guess it;s fine then.
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I foresee the problem will come after the 10-year contract with TNB ended and the owner decided to install 100 kWH of battery to hold 2 days of sunlight energy and then find out that this energy can only be used in one of the electrical phases (e.g., a certain section of the floor), but the other phases have to draw from TNB.

In summary, underutilize the battery capacity sized for 3 phases, which can only be used by one of the phases.

I wonder if this kind of trick is also practiced by TNB's solar subsidiary.


bee88
post Jan 10 2024, 11:59 PM

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QUOTE(killeralta @ Jan 9 2024, 02:59 PM)
I recently finished my solar installation using hoymiles micro-inverter.

But installer does not want to provide me with the end user username and password for hoymiles s-Miles monitoring app system saying its only for there own usage. Instead have to rely on there own app for monitoring with minimum info.

You think i can go to consumer tribunal to force them to give me the access to hoymiles s-Miles monitoring app?
*
What do you mean their own app? Surely can use hoymiles own app to monitor. U can see the panels, performance , and energy generation.

Smiles end user app.


bee88
post Jan 11 2024, 12:01 AM

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QUOTE(eagle7 @ Jan 10 2024, 04:37 PM)
I foresee the problem will come after the 10-year contract with TNB ended and the owner decided to install 100 kWH of battery to hold 2 days of sunlight energy and then find out that this energy can only be used in one of the electrical phases (e.g., a certain section of the floor), but the other phases have to draw from TNB.

In summary, underutilize the battery capacity sized for 3 phases, which can only be used by one of the phases.

I wonder if this kind of trick is also practiced by TNB's solar subsidiary.
*
I think no need 100kwh battery. That’s overkill already. Since solar generation is daily. Maybe you just need about the night usage kWh size battery.
killeralta
post Jan 11 2024, 07:20 AM

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QUOTE(bee88 @ Jan 10 2024, 11:59 PM)
What do you mean their own app? Surely can use hoymiles own app to monitor.  U can see the panels, performance , and energy generation.

Smiles end user app.
*
Solaroo own app, they dont wanna provide hoymiles login
eagle7
post Jan 11 2024, 05:14 PM

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QUOTE(bee88 @ Jan 11 2024, 12:01 AM)
I think no need 100kwh battery. That’s overkill already.  Since solar generation is daily. Maybe you just need about the night usage kWh size battery.
*
If I have 13KWac Solar Systems, and able to generate 45.5KWh (13KWac x average of 3.5 Full Day light) per day and size the battery to 1.5 to 2 times of the daily capacity maybe make sense.

The battery will last longer if charge and discharge around 30 to 80% of its rated capacity.




eagle7
post Jan 11 2024, 05:20 PM

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QUOTE(killeralta @ Jan 11 2024, 07:20 AM)
Solaroo own app, they dont wanna provide hoymiles login
*
Correct, they keep the admin login to themselves.

If one day you want the Solar System to use isolated WIFI (IOT/Guest wifi) instead of private WIFI, you need to call them to login and change the WIFI connection for you.


adamw
post Jan 11 2024, 05:53 PM

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QUOTE(killeralta @ Jan 11 2024, 07:20 AM)
Solaroo own app, they dont wanna provide hoymiles login
*
My friend bought the package from Pathgreen but was given S-miles app access. In your contract any T&C on this? Otherwise I think you can make an official complaint.
killeralta
post Jan 11 2024, 09:08 PM

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QUOTE(adamw @ Jan 11 2024, 05:53 PM)
My friend bought the package from Pathgreen but was given S-miles app access. In your contract any T&C on this? Otherwise I think you can make an official complaint.
*
They die also wont give, say they throw a lot of money develop there stupid app that sync the data from s mile app.
bee88
post Jan 11 2024, 11:29 PM

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QUOTE(killeralta @ Jan 11 2024, 09:08 PM)
They die also wont give, say they throw a lot of money develop there stupid app that sync the data from s mile app.
*
Actually like this can blacklist already. Can’t even monitor panel performance when the benefit of micro is to allow panel performance monitoring to ensure the panel is working.

There are so much data to be obtained from smile app, like total energy per panel per day, micro inverter temperature for safety reason, panel performance at certain time of the day, comparison of panel production to ensure no panel malfunctioning, daily graph, yearly graph, inverter amp, inverter output.

All these data are crucial because one off, tecnician should come to inspect. Without these data, u can’t even argue with them.

Better go string if only get minimal info.
bee88
post Jan 11 2024, 11:32 PM

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QUOTE(adamw @ Jan 11 2024, 05:53 PM)
My friend bought the package from Pathgreen but was given S-miles app access. In your contract any T&C on this? Otherwise I think you can make an official complaint.
*
Yes. We are given the access for user part as pathgreen customer. I don’t think it’s in the contract or not. It’s the right that the customer has for using hoymiles merchandise.

bee88
post Jan 11 2024, 11:33 PM

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QUOTE(eagle7 @ Jan 11 2024, 05:20 PM)
Correct, they keep the admin login to themselves.

If one day you want the Solar System to use isolated WIFI (IOT/Guest wifi) instead of private WIFI, you need to call them to login and change the WIFI connection for you.
*
Actually they can create the smile end user login credential. I have seen before the installer app and it’s as easy as abc to create end user account. Doesn’t take much time pun.

The difference between installer app and end user is that installer app can reboot inverter and modify power ratio while end user cannot.

And installer app has access to many projects instead of one for end user app.

Seen before the interface.

This post has been edited by bee88: Jan 11 2024, 11:35 PM
bee88
post Jan 11 2024, 11:36 PM

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QUOTE(eagle7 @ Jan 11 2024, 05:20 PM)
Correct, they keep the admin login to themselves.

If one day you want the Solar System to use isolated WIFI (IOT/Guest wifi) instead of private WIFI, you need to call them to login and change the WIFI connection for you.
*
You on solaroo too?
Jo_da48
post Jan 16 2024, 12:37 PM

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QUOTE(killeralta @ Jan 11 2024, 09:08 PM)
They die also wont give, say they throw a lot of money develop there stupid app that sync the data from s mile app.
*
how the hack want to ensure panel are working, performance are meet ...?
MGM
post Jan 17 2024, 06:47 PM

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Is this for real, 1000x better? If yes, can Solar powered EV.

https://www.thebrighterside.news/post/groun...ditional-panels

This post has been edited by MGM: Jan 17 2024, 06:48 PM
teikseng
post Nov 5 2024, 12:04 PM

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QUOTE(bee88 @ Jan 4 2024, 11:17 AM)
U see. You connect to 2 floor db. So the energy source come from 2nd floor. It’s not even direct to Tnb.

So ur 2nd floor will use the energy first. Then extra go back to main db. And then get istributed to the appliance.  Then extra flow back to Tnb.

But doesn’t mean ur ground floor will use Tnb energy first. You still use solar for self consumption first before any extra is send out.

When cloudy day, not enough producing , that’s when Tnb kicks in.  That’s the way how on grid inverter works.
*
What is the prefere-able way of connecting the solar power directly to either Main DB or 2nd floor DB? Is there any disadvantages of connecting to 2nd floor DB instead of main DB ?

 

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