To give u some idea, a panel usually cost 600-800. An inverter maybe 2k something. If my maths are correct, their profit margin is 100%

For an average of RM280 a month usage, is it advisable to even install solar panels?

I regretted feeding the troll, just put this idiot on your ignored list!

Wow! Location?

I’ll take that offer… wahahahahaha

My area is 4.49 sun hour average for the whole February.

This I have to disagree. 

U haven’t include  labour, accessories, and the inverter he has is 3 units. And each unit is about 2k like what u said. 
For string the margin is higher.  For micro is smaller margin. 

It can be 100% though, if the system u get is at a very very steep price.

I dont think microinverter is worthy of its price and trouble.
I highly doubt solar installers will provide high end panels, so 800 is a very safe number. To give u some idea, I could get 550w panels for 600.
Accesories are cheap, labour cost I assume 3 pax, 100 ringgit a day. 5 days work. 1500. Definitely the margin is on the higher end, surely we can get better bang for the buck in the future

My 1st complete month.

Total generated 763kwh
Highest day  35.3kwh (today)
Lowest day  14.2kwh

Normal month usage below 550kwh
This month dem hot. Dunno how much energy used but almost everyday on 2.5hp aircond afternoon until 7pm

What’s ur capacity? From there can calculate the sun hours

Capacity 565w x 12 panels.

But limited by inverter rating and 4 panels facing north.

Inverter is 1.8kw x 3.

Max inverter output is 1.932kw though (483w per panel)

Here is mine for February

The hoymiles total 1.8kW(1.932kW) is the limit, extra panels wattage get you more power when weather not so good.

Supposingly at max sun brightness, the output is kept at 1800W or 1932W for this inverter? Any input power over 1800W will be tapered off?

Supposingly at max sun brightness, the output is kept at 1800W or 1932W for this inverter? Any input power over 1800W will be tapered off?

Okay. Let’s address your question

In the first lesson, we learn that the nett offset is 0, so your question is how come Tnb say need to pay rm60.

The website you are looking at is a calculator. It will generate estimated figure based on certain formula.

So where does the rm60++ come from?

In your bill, you have sst charges 6% on 601 units and above.  Icpt surcharge for 1500 kwh usage. Kwtbb 1.6%

What NEM allows to offset is the base fare, but the sst charges , icpt charges , kwtbb are not offset Ed. So the RM60 is actually all the other charges that is not offset. Tnb just offset the unit price, but not others. 

So, u might think, like thst not so worth la kan.

If u no solar, these charges u need to pay. If on solar , you still need to pay.

So these charges are not avoidable whether on solar or not.

Anyway, Tnb calculator x boleh pkai one lah. If suddenly u change ur mind and want to install solar, pm me, I personally help you calculate and offer you sound advice on how to go about installing solar.  There are things to avoid and things to do when it comes to solar. 

Gspark is one that u should avoid in the first place. Like u said, gspark is subsidiary of Tnb and surely Tnb will play kaw u with their gspark package. 

Any more question? Before we can proceed?

I want to install but hate my current house. Can't see myself living here after a few years

When a panel is rated at 575w or 600w, this is the STC value.

The best is referring to noct value.

Like ev, one is nedc value , another is wltp value.

So to achieve full panel outpu as per stc value, u need to see certain criteria met.

So clipping is considered minimal with the pairing while the spread is higher during non peak hours. Which is quite optimum.

For my case, my inverter rated 2000W, clipping at 536W

My panel is rated 600W, but max input to the inverter is 536W due to clipping

But 4 X 536W will get 2144W, more than the inverter 2000W rating, so output of inverter will be clipped again to 2000W or still remained at 2144W?