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 Home solar 4 months in.

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TSnetflix2019
post Oct 3 2023, 10:38 AM, updated 4d ago

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UPDATE 29/02/2024 - THIS IS OLD TERED> PLS READ FAQ BEFORE REPLYING. At this point this post will be used as solar discussion. For those who already installed and enjoying home solar please share your cost and warranty and even installation details for comparison. Will be highly appreciated.

FAQ <---- READ THIS FIRST BEFORE HITTING REPLY BUTTON!!!
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Hi k/

I installed solar panel for my house 4 months ago. Total cost RM47000 for 26 pcs. Don't know the detail much cos not important to me. All i know is they write Jinko solar 550wp.

So far my average bill from RM800+ reduce to RM40-50. That's a whooping 20% return p.a

Isn't it too good to be true investment? What am i missing? why still not many ppl installing the solar since potential return so damn 7 good. Even EPF give guaranteed 5% only. FD is even lower.



drillzzz
Before
user posted image

after
user posted image

user posted image
Highest and lowest yield in a single month.
user posted image
Average sunlight for highest and lowest yield


edit: added correct drillz. messed up the format cos busy at work. fixed it liao.
edit2: added highest and lowest yield drillz. and total amount generated in a single day.

This post has been edited by netflix2019: Feb 29 2024, 11:16 AM
TSnetflix2019
post Oct 3 2023, 10:49 AM

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QUOTE(seiferalmercy @ Oct 3 2023, 10:41 AM)
wait till u have to repairs and maintenance.
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Got warranty 12 years for product problem. 3 years for installation problem. Cleaning 5 years once maybe they say about RM1000.

QUOTE(kaiserreich @ Oct 3 2023, 10:41 AM)
Yup, everyone should install solar even though they are staying in apartment, cover entire balcony
Since everyone's TNB bills are 800+, can save a lot.
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Your point a bit extreme but i get it. But currently in Malaysia landed property is the majority still.

QUOTE(smallcrab @ Oct 3 2023, 10:42 AM)
800 per month?

High usage worth la
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I also dunno how become so high. Semi-D only. 2 biji aircon average per night.

QUOTE(saigetsu @ Oct 3 2023, 10:42 AM)
That 47k is not an asset like house. More like a car. It will be deteriorated. Should include depreciation expenses oso . No to little second hand value.
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But ROI 5 years. By logic based on warranty given it should be problem free for 10 years at least.
TSnetflix2019
post Oct 3 2023, 10:53 AM

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QUOTE(smsid @ Oct 3 2023, 10:43 AM)
Good job ts, save money and environment.

Anyway, how many people are in your house till it can reach rm800 bill?
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QUOTE(dudester @ Oct 3 2023, 10:47 AM)
mind sharing your appliance usage to reach 800rm tnb bill?
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me wife and 4 ekor anak.

Average 3 biji aircon every night until morning. +1 study room aircon if star aligned and i get to play game. Even my friends and family shocked about my rm800+ bill. I also dunno why so high really.

TSnetflix2019
post Oct 3 2023, 10:55 AM

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QUOTE(SurpriseZZZZZ @ Oct 3 2023, 10:52 AM)
Do you know the NEM only valid for 10 years? Your "return" has an expiry date. Year 1-5 trying to recover, then Year 6-10 you earn some. Year 11 onwards, you are on your own.
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Yeah i know. But high chance government extend it for another 5 years at least. Even if they don't the 5 years after projected ROI i can reinvest to get battery. Still no rugi and potentially untung.

All in all even if government remove NEM i still looking at figure close to FD.
TSnetflix2019
post Oct 3 2023, 11:14 AM

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QUOTE(mushigen @ Oct 3 2023, 10:53 AM)
You need 5 years to break even. Imo, it should not be considered as ROI during the first 5 years. Don't forget to add the opportunity cost of the RM47000 you coughed up.

After this, baru can consider ROI.
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True also. But this 47k upfront very suitable for me. Cos i total noob in investment. Usually park money EPF/FD . I prefer those long term investment that i stuff the cash somewhere no need to keep track.

QUOTE(WaCKy-Angel @ Oct 3 2023, 10:53 AM)
Servicing need to pay iinm.

Then again as ppl mentioned not everyone's monthly electric bill is RM800

Also if u put 47K into FD @ 3% for 5 years u can get interest worth 7K.
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QUOTE(WaCKy-Angel @ Oct 3 2023, 10:54 AM)
My bro house paid 3K for ppl go fix the meter every month bill just RM300.
Can ON aircond whole day
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I did the meter adjustment before. Everyday live in fear. You won't save much unless u go ganas and adjust it lower than 50%.
I surveyed before with electrician friend. He said majority will get caught anyway just prepare to offset the compound with whatever u saved. Based on this logic why not just install solar. At least my karma still protected.

QUOTE(infiniti123 @ Oct 3 2023, 10:56 AM)
that's very good returns.
recently i installed too. 11.5Kw. 47K MYR in total. but averaging only around 600-700MYR per month. my bills decrease from 1.7k to 1k on average now.
as wife is petronas employee, our warranty is extended to 25 years on panel, inverter, and wiring.
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Wow damn good deal for the warranty alone. Also ur bill 1.7k ... how??
TSnetflix2019
post Oct 3 2023, 11:17 AM

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QUOTE(debonairs91 @ Oct 3 2023, 11:07 AM)
TS tokok singsong only. Show la tnb bill before and after install solar
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QUOTE(debonairs91 @ Oct 3 2023, 11:13 AM)
Talk so much but not a single proof
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I can provide bill. But need to censor details. scare tio doxx.

If i post u going to edit out all your sceptical post? Dun need to apologize, just edit them to show the proof i provided. Deal?
TSnetflix2019
post Oct 3 2023, 11:21 AM

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QUOTE(cloudwan0 @ Oct 3 2023, 11:15 AM)
first, you need to take out 50k to install
second, you only started, what about maintenance? how long it can run without issue?
third, most ppl electric bill around 200~300, why take out 50k up front
the 50k can pay 13 years of RM300 electric bill.
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TNB limit the amount of panel u can install to match your monthly bill.

My case example is 26 panel to generate RM700+. So for your case u can only install 12 panel. Only need upfront RM20000. Maybe instead of changing car every 7 years u consider installing solar once?
TSnetflix2019
post Oct 3 2023, 11:45 AM

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QUOTE(SurpriseZZZZZ @ Oct 3 2023, 11:25 AM)
If rain can clean it how come our exterior wall will still be dirty after years of usage?

Even then solar panel guys been telling us, please clean the panels periodically.

No one is doubting the capability of solar generation but it shall never be glorified and advertised in such a way that it does not come with its challenges.

Read both sides of the stories.
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Exterior need clean but not as often or expensive as u think. It's like washing windows. Difficult part is accessing the panel since it's on the roof. They half hint can hire foreigner go up there do "servicing". But engaging them is better cos they go up check the panel etc. But still it's not going to cost more than rm1000.

I actually surveyed a lot since the first roll out the solar package back in 2010. My uncle installed the RM16000 deal back then while i opted for "adjust meter". His ROI is in 6 years and until now 12 years already the amount generated doesnt drop if at all. He said agak2 90%+ efficiency from installation. His deal is perpetual TNB buy back the energy cos first of the first in Malaysia. Main reason why i invest into solar even if it's NEM 3.0

QUOTE(Clueless07 @ Oct 3 2023, 11:25 AM)
RM 800 per month is pretty normal.
especially if use electrical kettle, induction cooker and hot water shower.
of course air cond at night in room,
living room also got.

5 years return- yeah good 20% return. Even factor in maintenance/replacement also consider  a good 12 to 15%?
Take note this particular the figure will increase if TNB increase the tarriff.

some say it may not come.... but if the tarrif increase, the contract will at the same time increase the installation cost.
yes better than EPF. Also some bank offer installment right?
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The current trend of oil price. Unless Malaysia go nuclear power plant the electricity price will only increase. Also Malaysia government now more n more ganas against T20, they will 100% go after high consumption household.

QUOTE(mushigen @ Oct 3 2023, 11:34 AM)
If this 47k doesn't give you hardship and you save RM750 per month in tnb bills, it does seem to be a good choice for you. If you put 47k in epf and assume epf interest of 5.5%, you'll have RM80k in epf after 10 years, compared to 90k in tnb savings.
On paper , you untung but do note that after 10 years if nem is not extended, your tnb savings plunge but your epf continues to earn compounded money for you. That's the risk, returns wise.

However, tnb tariffs may increase over time and your savings will too.

Most importantly, you feel good about it.
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Can get 0% installment 36 months for solar installation. That alone win epf liao.
TSnetflix2019
post Oct 3 2023, 11:48 AM

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QUOTE(snimple @ Oct 3 2023, 11:39 AM)
My bill rm250 max

Living area 2 airconds but very seldom on
3 airconds rooms 12 hours usage daily
Kitchen everything electrical no buy gas tangki
Water heater 3 bathrooms

2 big 2 small

RM800 normal?????? hmmmmmmmm
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I suspect it's the amount of light bulb. And also washing machine.

My house semi-D. At night i left some lights on total about 15 x 12w LED light bulb. Probably that's why.
TSnetflix2019
post Oct 3 2023, 11:49 AM

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QUOTE(jellomeat @ Oct 3 2023, 11:47 AM)
What Ts said doesnt makes sense. If your bill is above rm780 or 1500kW.. there will be a surcharge of at least rm150.00 already, and that cannot be offset by your solar export, from what I know.
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It's because during daytime the solar energy get consumed by your household before being exported away. I also noticed the amount of total electricity consumed on my bill is less than before solar installation.
TSnetflix2019
post Oct 3 2023, 12:12 PM

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QUOTE(keybearer @ Oct 3 2023, 12:00 PM)
Still don't understand how a house can reach 500++ or 1k++ bills. Mine averages around RM200, when got people come over extended stay open aircond at guest room during morning also at most RM350 only.

WTF you all running until reaching 1.7k even? 1 fridge for every room?
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I edited new drillz of my bill.
TSnetflix2019
post Oct 3 2023, 12:30 PM

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QUOTE(WaCKy-Angel @ Oct 3 2023, 12:09 PM)
Already is smart meter
Already kena and paid fine, do again lel.

Fine is not much compared to actual electricity use.
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tell your bro don't play. He will get caught. So far i surveyed most friend/family who adjusted meter kena. You just need to ask when no one is around, they will confess.

Malaysia is like that. Before kantoi they tell 9 street what they did how they untung. After kantoi they keep quiet only cos face more important than anything else.

I just glad they changed to digital meter never kantoi me. This adjusted meter thing is a major hindrance that is preventing me from installing solar years ago. I could have gotten NEM2.0 if not because of it.
TSnetflix2019
post Oct 3 2023, 01:08 PM

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QUOTE(jellomeat @ Oct 3 2023, 12:51 PM)
Appreciate for sharing some of your bill details.

Seems like you might not be comparing it so accurately when u said rm800 went down to rm40+?

Based on your example, if you used rm839.50 per month before solar installation, and your generation is rm552.90, you still need to fork out roughly rm300 per month? Maybe even more today since there is a surcharge of Rm0.10 / KWh, if your consumption is more than rm780 per month since July 2023?

Edit: Oh, u modified your drillz edi. Aiya ts, u only consumed 1240KWh (rm600) recently..
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Again i will reiterate. My latest 3 months bill before solar installation is RM800+ and RM900+.

After installing solar my consumption drop to RM500-600. I theorize that it's because during daytime all the solar energy i generated get consumed by the house first before diverting the excess to TNB. In short the price difference probably is the amount of electricity i used during daytime which is about rm200-300.


QUOTE(Boy96 @ Oct 3 2023, 12:53 PM)
Question

1. 1600kWh usage but didnt kena ICPT charges?

2. If roof leaking during rain have to remove solar panels to fix?
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1. probably because during daytime the energy generated get consumed first before sending the excess to TNB.

2) Yes need to remove panel only repair. so u have to arrange them to come buka, then roofer repair, then arrange them come pasang back . that's why it's very important to make sure your roof no such issue before install. They recommend new house stay few years no issue just install.


QUOTE(jay @ Oct 3 2023, 12:55 PM)
TS got consider solar panel will degrade over time?
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yes. in fact it didnt degrade. Because my uncle installed them 2010. Until now he said the energy produced same only. Already 10 years no different. Main reason why i feel confident to install.

This post has been edited by netflix2019: Oct 3 2023, 01:13 PM
TSnetflix2019
post Oct 3 2023, 01:16 PM

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QUOTE(neolombax @ Oct 3 2023, 01:15 PM)
Just a sidenote, unless youre using a hybrid inverter, if u wanna use battery later on after NEM no longer applies you have to change your inverter.

Also bsrnya rumah u. 26pcs of 550W panels? Duduk mansion ka? Hebat.
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semi-D. But i request they sumbat as many as possible. It's absolutely maximum for my roof.
TSnetflix2019
post Oct 3 2023, 01:19 PM

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QUOTE(neolombax @ Oct 3 2023, 01:15 PM)
Just a sidenote, unless youre using a hybrid inverter, if u wanna use battery later on after NEM no longer applies you have to change your inverter.

Also bsrnya rumah u. 26pcs of 550W panels? Duduk mansion ka? Hebat.
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oh ya, mine is hybrid inverter. Seller said just upgrade battery. The only thing i need to worry is battery capacity. But that thing 10 years later only see how.
TSnetflix2019
post Oct 3 2023, 01:26 PM

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QUOTE(bee88 @ Oct 3 2023, 01:23 PM)
To be honest. These hybrid inverter just fancy feature. After 10 years, there is a big possibility u already change it.

Battery also limited selection. Compatible batteries or proprietary sure cost more
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Ya true. 10 years time the technology should leap and bound. No use worry so much now. Also it seems to be in consumer favor judging on the past history.
TSnetflix2019
post Oct 3 2023, 01:30 PM

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QUOTE(WaCKy-Angel @ Oct 3 2023, 01:22 PM)
Well he just recently changed gate + shift meter. TNB contractor didnt suspect anything so i guess its good to go
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Because Malaysia boleh. The guy job is to shift meter not catching ppl steal electric. Much like PDRM won't catch u no wear seatbelt while driving. They can, and some do, but super rare.

If your bro area a lot ppl curi electric they will definitely come. My housing area kena raid 2 times i think, most of them also end up using solar after digital meter switch. It's just not worth the daily anxiety and the risk. Also super bad karma. Malaysian complain about BN songlap, but the truth is almost all Malaysian songlap from government/workplace one way or another. The next time ur bro talk about politician corrupt etc, tell him he is not any better. Just amount smaller, got less zero.
TSnetflix2019
post Oct 3 2023, 04:08 PM

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QUOTE(mushigen @ Oct 3 2023, 01:39 PM)
47k/36=RM1306 pm.

Put in epf at 5.5%, you'll earn rm4208 interest and will have RM5,1224 after 36 months.

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

After this 36 months, for the next 7 years, you will earn rm23,989 in interest giving you the total rm75213.
» Click to show Spoiler - click again to hide... «

For year 11, you will earn RM4242 interest, translating to RM353 per month.
» Click to show Spoiler - click again to hide... «


If you're not able to extend NEM, your PV must offset RM350 pm to break even. Don't forget that your EPF money is still there for you to withdraw, whereas your PV and its peripheral hardware are considered sunk costs and are basically worthless if you decide to give up on it (no/low resale value). Will it add to your house market value? Not sure.
This write-off is not taken into account in the untung-rugi calculation. It essentially means at the wnd of Year 10, your TNB savings is just RM15k (at current tariffs and consumption) more than your EPF balance, but your epf continues to grow while your solar panel system continues to deteriorate in terms of performance and resale value while requiring maintenance.
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Lol don't know why u make it so complicated.
Based on my bill I calculated 20% p.a return for 47k invested.

Epf is 5.5% average.

The only difference is solar panel is physical asset 47k cannot take out but much better return hence the ROI 5 years. Anyway the risk of losing it all is offset by the warranty given.

Epf u can take out but 5.5% p.a. also I already maxing out my epf contribution. I just put 1 year of my epf investment into solar.

QUOTE(ShadowR1 @ Oct 3 2023, 01:59 PM)
I hear from kopitiam blow water session that there's this someone who adjust the meter n year ago -> tnb sent letter wanna change smart meter (whole taman) and he normalize back the meter -> tnb lai change smart meter -> readjust the smart meter  laugh.gif

Psst ... he very diam bout this, very the diam unlike those lak kaw bu chiet mouth like a loud speaker.
I hear he's been on the tnb discounted rate for > 10 year. Duno what usage is before but after discount its around Rm150+-

Kasi bakar the meter and get tnb to install new one -> install ur solar.
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Yep. I did just that. The electrician who ahem for me came bc and adjust back. Fucker didn't even bother to replace the sticker. So far haven't kena lawyer letter. Can only pray to God everyday now.

Funny enough before they start change meter I contemplated to burn it and ask for replacement. The guilt and anxiety very overwhelming to me. Very not worth to curi electric
QUOTE(azarimy @ Oct 3 2023, 02:01 PM)
My monthly bill currently is around RM200. I'm not sure if getting into solar is a worthy venture.

Is there any option if my consumption is just RM200?
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Generally bill below rm400 not worth. The inverter and stuff like that cost significant chunk of the 47k I paid. Also need 3 phase power.

TSnetflix2019
post Oct 3 2023, 05:19 PM

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QUOTE(azarimy @ Oct 3 2023, 04:35 PM)
Noted, thanks. My house is already using 3 phase, and have two mono-pitched roof that is optimally angled towards the sun (annual cycle) between 1030-1700.

I just waiting for solar panels to be cheap enough for me to use...
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Actually toward the end the supplier hinted to me they can install extra panel than allowed by TNB, under table stuff. I never ask further since not possible for my case.

I think the main point to be considered. Are u going to shift new house in the next 10-20 years? Is the upfront cost going to affect ur lifestyle. I definitely don't which the biggest reason i go all in for solar.

QUOTE(razr_sped @ Oct 3 2023, 04:37 PM)
just to share mine, 800kwh average monthly usage which is RM341 per tnb calculator. Installed a 7.6kwp system for around 28k, using huawei invertor which after NEM could install with its battery system of up to 15kw. Current bill average around rm40, but my petrol bill also went down a bit as I had a phev after solar installation.

No upfront cost but i took EPP for 24month. If the tariff increased in coming budget, then the ROI could be shorter or would be less affected. Main target is to get the bill to using only subsidize rate as i don't see a point to not utilize it, but on top of that I can utilize AC as needed esp. on hot days. Currently I have a 2.5hp running from 8pm - 6am daily.

Quoting from earlier comments, these are money need to be spent anyway to TNB, must as well do something to it and in future get a minor battery for backup in the event of power failure. So, if purely numbers it doesnt make sense, but i'm not good with finance tongue.gif

user posted image
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Hmm... why the need for battery when u already have NEM? How much the battery cost and how many panel? Can last for whole night?
TSnetflix2019
post Oct 3 2023, 05:36 PM

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QUOTE(Choongster @ Oct 3 2023, 03:33 PM)
solar panel in Malaysia cannot ROI.
by the time you ROI your money , your battery and panel will require replacement.
Your total investment is RM47,000
if each monthy you save Rm1,000, that is 47 months .. close to 4 years but your battery will degrade over time and solar panel efficiency is also reduced, you won't be saivng Rm1000 each month.
According to friends in Japan who frequently have earthquakes , they do suffer frequent power shutdown. Their solar panel is for emergency . not to save money.
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QUOTE(Choongster @ Oct 3 2023, 03:50 PM)
install solar but no battery ? then install solar for sunny day use ?
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Dunno why u so sceptical. Tell me which investment can nett u 20% return p.a.
ROI in 4 years is insanely attractive for a investment. Even property also cannot beat.

No battery required because government incentive by giving NEM (a.k.a buy back excess energy u generated and offset your monthly bill in return). I think u seriously need to read up and ask around those who already installed. I asked, both my uncles installed back in 2010 until now no need pay any $$$ for replacement parts or repair. They never bother to hire ppl to clean also for 10 years and energy generated still up to 90% so far. Both of them ROI in 6 years.



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