TS got consider solar panel will degrade over time?

i guess you didn't read carefully.

its ok.....

Tier one is 30 years plus.

ok lah.....

degradation in yield is about 1% a year roughly

i guess you didn't do accounts.....

just make it simple;

a) cash out to buy the project
b) cash in over 10 and 20 years

calculate payback (in years) and internal rate of return.

depreciation irrelevant.

quality inverter important

10 years back was SMA (german)

now more choice

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.


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.


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

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.

Okay, thank you ts for the explanation.

nice TS

mine average RM 700-800 bill reduce to RM 17 in the first month of using solar

top fucking kek

can blast more aircon as my expectation is pay no more than RM 50 per month

semi-D. But i request they sumbat as many as possible. It's absolutely maximum for my roof.

Nope. But depends on the 1600kwh is total or import only.

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.

pray your roof dont have leaks later on

Well he just recently changed gate + shift meter. TNB contractor didnt suspect anything so i guess its good to go

Wow tap? Winrar

After 10 years depend if TNB want to renew the contract or not otherwise users just rugi the storage part. You do still enjoyed the generated power during the day ya and is FREE yo....

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

Tnb contractor tell me this la. Dunno how true it is la. They know which house got steal. They mark it. After certain years only action taken. If take action early, less money.
Dunno how true la

They came to my house to change the fuse blown last time.

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.

Curi electric sure got sleepless nights one .... kena caught will get fine ten thousands of RM at least... better install solar, can sleep better and live longer ...

This post has been edited by etan26: Oct 3 2023, 01:27 PM

In fact, my concern down the road is the safety. Overseas they check cables and connection every year. In Malaysia, I am not too confident

String inverter has a chance to catch fire due to arc fault. There are cases where it happen because string inverter deal with high dc.

That’s why I didn’t go for that. I just want peace of mind.