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 Home solar 4 months in.

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Drian
post Oct 3 2023, 02:12 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.

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After this 36 months, for the next 7 years, you will earn rm23,989 in interest giving you the total rm75213.
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For year 11, you will earn RM4242 interest, translating to RM353 per month.
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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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You need to factor in the additional 15k savings.
The 15K additional for TNB have to be accounted for

so it is rm350 - (5.5% of RM15k/12) . You can say that the additional savings is reinvested in EPF.


mushigen
post Oct 3 2023, 02:14 PM

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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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From googling, it's not recommended or worth it to install a PV panel with upgrading option in mind.

If you install something suitable for your usage now, you'll need to upgrade if your usage increases in future, say if you buy EVs or whatever. If you upgrade, the new panels or accessories may not be compatible or the cost to add may not be worth it. Add in the statutory requirements, lagi pening.

I stand corrected though.

dudester
post Oct 3 2023, 02:15 PM

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QUOTE(Clueless07 @ Oct 3 2023, 02:05 PM)
Well…. I hope we can be like u.
Rm250 is a steal.
My was around 500-600. For 2 airconds. Only on at night.
The aircond is well maintain…. Dunno where the leakage
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2ac for 500 600 is crazy.
Fridge and Ac is usually the main cause. Even Oven dont consume as much unless you bake everyday.
Are you AC and Fridge old and non inverter?
Computer? TV and monitors?
Bulbs using LED?

This post has been edited by dudester: Oct 3 2023, 02:16 PM
azarimy
post Oct 3 2023, 02:25 PM

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QUOTE(mushigen @ Oct 3 2023, 02:14 PM)
From googling, it's not recommended or worth it  to install a PV panel with upgrading option in mind.

If you install something suitable for your usage now, you'll need to upgrade if your usage increases in future, say if you buy EVs or whatever. If you upgrade, the new panels or accessories may not be compatible or the cost to add may not be worth it. Add in the statutory requirements, lagi pening.

I stand corrected though.
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I'm almost certain my usage (in terms of power) will not increase much in the next 10 years. The most power hungry person in my house is my child, and I'm sending her off to boarding school soon laugh.gif.

But lets say my usage only increases 10-15% in the next 10 years and I plan to get one at that rate now, would it be worth it?
snimple
post Oct 3 2023, 02:25 PM

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QUOTE(Clueless07 @ Oct 3 2023, 02:05 PM)
Well…. I hope we can be like u.
Rm250 is a steal.
My was around 500-600. For 2 airconds. Only on at night.
The aircond is well maintain…. Dunno where the leakage
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500 for 2 AC only on at night im pretty sure your AC is very old non inverter and probs on quite low temp every night

For starters change the AC to inverter and set the temp to be 26c (make sure get the correct hp for your room size)

See the diff don be surprise straight become 300 or 400 ish bill
mushigen
post Oct 3 2023, 02:31 PM

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QUOTE(azarimy @ Oct 3 2023, 02:25 PM)
I'm almost certain my usage (in terms of power) will not increase much in the next 10 years. The most power hungry person in my house is my child, and I'm sending her off to boarding school soon laugh.gif.

But lets say my usage only increases 10-15% in the next 10 years and I plan to get one at that rate now, would it be worth it?
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Personal opinio from a non-user:
I don't think the cost to install is directly proportionate to the panel capacity. So it may be relatively more expensive to install a smaller capacity vs bigger capacity, which you don't need. But the feeling of using "free" energy is very nice.

Maybe you can try getting quotations?
mushigen
post Oct 3 2023, 02:32 PM

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QUOTE(Drian @ Oct 3 2023, 02:12 PM)
You need to factor in the additional 15k savings.
The 15K additional for TNB have to be accounted for

so it is rm350 - (5.5% of RM15k/12) . You can say that the additional savings is reinvested in EPF.
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Yeah, my bad for not including the monthly 750 savings post PV installation.
bee88
post Oct 3 2023, 02:39 PM

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QUOTE(mushigen @ Oct 3 2023, 02:14 PM)
From googling, it's not recommended or worth it  to install a PV panel with upgrading option in mind.

If you install something suitable for your usage now, you'll need to upgrade if your usage increases in future, say if you buy EVs or whatever. If you upgrade, the new panels or accessories may not be compatible or the cost to add may not be worth it. Add in the statutory requirements, lagi pening.

I stand corrected though.
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Let me help clarify this. That’s why don’t go for string. Go for modular plug and play micro. Anytime can upgrade capacity.
yhtan
post Oct 3 2023, 02:55 PM

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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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The first gen of smart meter can be tamper, like a remote control switch on and the meter will not be running, not sure whether it will transmit data back to TNB server or not. My friend did it.

But the latest gen of smart meter even if u tamper the meter, the hourly usage once become 0 and TNB will find it irregular, in short very easy to kantoi.
Drian
post Oct 3 2023, 02:59 PM

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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?
*
no don't waste your time with solar.

Drian
post Oct 3 2023, 03:01 PM

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QUOTE(bee88 @ Oct 3 2023, 02:39 PM)
Let me help clarify this. That’s why don’t go for string.  Go for modular plug and play micro. Anytime can upgrade capacity.
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There is nothing stopping you from use string and micro together.


bee88
post Oct 3 2023, 03:01 PM

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QUOTE(yhtan @ Oct 3 2023, 02:55 PM)
The first gen of smart meter can be tamper, like a remote control switch on and the meter will not be running, not sure whether it will transmit data back to TNB server or not. My friend did it.

But the latest gen of smart meter even if u tamper the meter, the hourly usage once become 0 and TNB will find it irregular, in short very easy to kantoi.
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Actually I believe they bypass the meter. With a smaller wire.

So depending on your “saving” like how many percent , they adjust the thickness of the wire.

Coz my friend say that if they “on” the device, the meter will still run. But whole night only 2kwh or 3kwh.

Just my suspicion.
cse.my
post Oct 3 2023, 03:03 PM

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So 7 many pipu stay landed meh
lopo90
post Oct 3 2023, 03:03 PM

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QUOTE(ezze22 @ Oct 3 2023, 10:46 AM)
47k is way beyond what I can afford. I'll stick to my garden solar lights.
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Where to find those good quality garden solar lights? hmm.gif

Mr DIY ones only last like 1-2 hours before going out
sikongma
post Oct 3 2023, 03:06 PM

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QUOTE(netflix2019 @ Oct 3 2023, 10:53 AM)
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.
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TS how many fridges do you have? biggrin.gif Also any of your kids have powerful gaming computers? Those are also quite high consumption.
ShadowR1
post Oct 3 2023, 03:07 PM

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QUOTE(yhtan @ Oct 3 2023, 02:55 PM)
The first gen of smart meter can be tamper, like a remote control switch on and the meter will not be running, not sure whether it will transmit data back to TNB server or not. My friend did it.

But the latest gen of smart meter even if u tamper the meter, the hourly usage once become 0 and TNB will find it irregular, in short very easy to kantoi.
*
Ahh ... am not sure which gen of smart meter he is using.
bee88
post Oct 3 2023, 03:24 PM

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QUOTE(Drian @ Oct 3 2023, 03:01 PM)
There is nothing stopping you from  use string and micro together.
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If u add a micro on top of the string, u are basically paying for a new system. But if ur intention is just to add another inverter and 4 panel, getting a micro from the beginning will help save the process and wiring.
salimbest83
post Oct 3 2023, 03:30 PM

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QUOTE(lopo90 @ Oct 3 2023, 03:03 PM)
Where to find those good quality garden solar lights? hmm.gif

Mr DIY ones only last like 1-2 hours before going out
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Try this
https://shope.ee/40EoCPHUMm
Choongster
post Oct 3 2023, 03:33 PM

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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.
Kiding
post Oct 3 2023, 03:35 PM

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TS, mind sharing the city you installed solar panels?

Average sunny hours per day is 3.5 hours in klang valley area, if it can be 5 hours, it will be cheaper to install solar panels as less solar panels required

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