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.

Saving = RM 750

RM 750 x 12 months x 10 years = RM 90,000 (consider your panel doesn't degrade at all, no maintenance needed at all)

RM 90,000 / RM 47,000 = 191% for 10 years.

Let's calculate the CAGR

1.91^(1/10) = 1.067

Meaning 6.7% Compounded Annual Growth Rate (Again, with no solar panel losses, no maintenance needed, no solar seasonal pattern). That's the absolute max you can get for 10 years.

After 10th year, you needed battery to make it viable.

You can renew, buy new set of panel, new installation again.

This post has been edited by SurpriseZZZZZ: Oct 3 2023, 10:58 AM

I just calculate what went in and what came out. Simple.

RM 1000 paid as bill = RM 1000 paid as investment, it's the same RM 1000 after all.

Do you have any viable battery option now?
10kvah can easily be 30,000 currently.

I agreed. However your return will not suddenly increase from 6.7% -> 30% due to different payment schedule. It will be probably 8% maybe?

That's again, no maintenace, no cleaning needed, no efficiency drop? You know it's super hard to have all these right?

Solar panel efficiency drop 2% for the first year and 0.5% - 1% every year after that.

This post has been edited by SurpriseZZZZZ: Oct 3 2023, 11:06 AM

Yes it will generate for 20-30 years and you can only use it during day time.

Night time is what kill your TNB bill, not day time.

I average 35 kwh per day of usage and day time we hardly hit 10 kwh, at night that's another 20-25kwh of usage, mainly from air conditioning.

So without battery after 10th year, your panel will be covering just max 1/3 of your usage. Not entirely.

I am an avid solar supporter, but it should be backed by solid facts and figures.

There is no announcement for NEM4.0 yet. We do not know what is the terms like yet.

From what we know, NEM1 > NEM2 > NEM3, the terms get worse from one NEM to another.

This post has been edited by SurpriseZZZZZ: Oct 3 2023, 11:11 AM

26 panels = 26 ways to fail, also extremely fast.

You think we all live in an area without dust? haze?

TESLA powerwall seems to be ok.
Around 25k for 10 kvah. Not too bad actually.

They are interested to see the TNB bill itself.

How much is your import as of now?

Many ktards here has forgotten TNB rate is yet to hike post pandemic.

Many ktards here also own / will own an EV soon. That would push them over 1500 kWh easily (welcome to the new ICPT charges)

Solar has its place, just find the right one for your usage. I do agree not everyone needed a 40k setup but if your usage justify it then go ahead. If your bill is only 300 then get a 15k setup then. Simple.

No point bashing each other here.

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.

Finally some good news.
That is good to know.

Looks like the solar only managed to cover less than 20% of your usage (day time).

Move some energy intensive stuff to day time perhaps?

Your import still ok. 500 kwh away still from the ICPT charges.