mine after Rm4k rebate is Rm17k, 6.96 kw system

Using wat brand panel and inverter?

Huawei

solis, longi

edit: can opt for huawei inverter, topup Rm2k

This post has been edited by Ivan113: Apr 29 2024, 12:42 PM

17+2=19k vs rm18800(solaris), almost same.

Ur solis inverter supp max 7kw system?
Sked in future wana add more panel also cant supp jo

Let say if I get 7kwp now, in 3 years time if I need 11kwp how can I upgrade from 7kwp, add panels?
Actually from 7 to 11kwp add only 7k for an increase of 57% kwh, upgrade later might cost more?

I think my house is 3 phase power.



This post has been edited by MGM: Apr 29 2024, 01:13 PM

Ur import will be high.

Actually don’t think of future want to add more panel or not. Coz if u just want to add one or two pieces, u will kena charge a lot. Based on my friend experience.

actually I wanted 8kw system, but not enough space on roof, hence has to reduce.

7kw system with:

1 phase inverter = efficiency?
3 phase inverter = efficiency?

What are the number difference though?

If efficiency refers to using the solar power generated in your home.. you can say 3 phase more efficient.
I'll try and layman this from what I understand


You CAN use a 1 phase inverter on a 3 phase tnb supply. The installers never lie. But it is not optimised. Because the other 2 phases will draw power from tnb grid. I give simple example. your tnb 3 phase, your solar 1 phase inverter, you have a 3 phase EV charger, charging at 11kW (3.65kW x 3). So if you charge during daytime when solar generating power, you won't be able to use all 7kW from your solar for the EV, as the solar is only on 1 phase, thus it'll be capped at 3.65kW and the balance will draw from grid. And if you import more than 1500kW TNB.. you kena ICPT RM0.10/kW

EDIT before got smart Alec comment: ok don't be an idiot and tell me you no EV charger. I just use EV charger cause easy to explain. Go find out what is wired to each phase in your own home ok?

As an owner.. why lah wanna make my home's 3 phase not balance. and why wanna limit my self-consumption for solar on just 1 phase..and forced to draw from grid for the other 2 phases?

TNB FAQ:

correct. but since he is on a smaller capacity, my concern is he will not be eligble for the 2 cent icpt rebate if his import hits 600kwh

I assume my usage will be around 700-800 kwh per month. Assuming if I go with 1 phase inverter, and miss out the ICPT rebate, that means I will miss out 600kwh x 2 sen = Rm12 per month, is the calculation correct? To upgrade to 3 phase inverter, I need top up Rm1,900, need 13 years to ROI? Not sure if its correct if I calculate like this.



from Google:
The ICPT charges for Domestic customers (Tariff A) are as follows:

ICPT rebate of 2.00 sen/kWh is maintained for electricity consumption up to 600 kWh only;
ICPT surcharge of 0 sen/kWh (exempted) will be applicable for electricity consumption from 601 kWh to 1,500 kWh; and
ICPT surcharge of 10 sen/kWh is maintained for electricity consumption that exceeds 1,500 kWh.

which installer is that? Verdant?

actually i don't think you will have balance 3 phase for resident usage,
no way to balance, cause your house should be no 3 phase device.

Got recommended supplier?

i asked already, not Huawei,

is GoodWe GW5000D-NS for 7KWp

anyone here got install solar optimizer?

Which kwp using Huawei?