My inverter will send the extra power to battery.
At night the inverter will use battery first, if battery depleted then it will switch to TNB.

If under the following scenario, (example) say you mentioned current panel able to provide 1800w, and battery have already fully charged then next your current consumption only at 1500w. What happen to the 300w? Feed back to TNB or the inverter just make the panel circuit short and discard that 300w?

In this scenario, the panel will not be able to deliver the extra 300w. Panel will not short circuit. So in a way its discarded.
No energy will be delivered to TNB.

You need to apply for the NET in order to officially get on grid. TNB can't force you.

Yes, it will be feed back to TNB.

Noted, I think most of the inverter should have this kind of function etc. SMA....

Mind to share what brand of the inverter you are using?


Haha, meaning if not planning to feed back to TNB but want to have grid tie have to do if unofficially .

My opinion is that latest NET metering not as beneficial compare to FiT on the rate, with NET that Feed Back mean TNB is using our panel for free and we as owner have to fork out money for maintenance in the future.

The official brand of the type of inverter is call MPPsolar in Taiwan. I bought clone of it from taobao. Model is Victor NM

My opinion on NET metering is that its good to offset your electric bill that is more than 600kwh and you don't need to spend on large battery pack and extra electrical wiring.
Malaysia's power quality is good, we seldom get blackouts so the ability to go offgrid is not so critical.

hi,

I'm planning to install 5kW solar system with NEM scheme.
So far, few quotations were received.

Can you help to evaluate which is more reasonable cost vs specs?

1.
Inverter: Huawei
Panel: JA Solar, mono, 380Wp x 14, Total: 5.32kWp
Price: Rm25k

2.
Inverter: Solis
Panel Canadian solar, mono, 300Wp x 17, total: 5.1kWp
Price: RM24k

3.
Inverter: Goodwe
Panel: Trina solar, mono, 450Wp x 12, total: 5.4kWp
Price: RM21.4k

4.
Inverter: Fronius
Panel Canadian solar, mono, 300Wp x 17, total: 5.1kWp
Price: RM27k

How much difference for the official to clone unit?? I assume unable to claim any warranty if anything gone wrong for the Taobao clone??

Official unit will give you firmware update if you asked.

Both official and clone unit also has warranty. The problem is the cost to send a 13kg item back to China/Taiwan...

This post has been edited by yushin: Jun 18 2020, 10:51 PM

Sound like you by pass all the middle man (provider), my guess is 20% to 30% cheaper if buy your own or even more??

Plan to DIY as well, and forgo those provider. Can't trust most of the provider with sweet promise especially in Malaysia .

If you have the knowledge and skill, DIY is not really that hard.
It will involve rerouting the power on your house main DB tho so take note of that.

I saw a post regarding solar window, meaning any light it can generate electricity but forgot where i saw it. Anyone has ideas?

i guys. need some advise....my inverter koyak after 4 years.

its says there OC(assuming over current)

anywhere i i can have it fixed? mine is by Schneider. thanks

unusual...usually 7 to 12 years life.....did you put more panels than recommended ?

ask Schenider for repair ? i googled schneider inverter, and a few independent names came out. call them.

also consider insurance for your system.

it was installed by the vendor.. so i suppose it should follow spec...

just wondering if anyone have the same experience....


my vendor quoted me around rm4-5k... i was like wtf.....

sounds more like replacement than repair....how many kw is your inverter ?

actually, you can check with other suppliers and see how much they sell inverters...i use SMA and no complain so far.....no need to go to your existing vendor if he's expensive.

if you want to sell your broken down schneider inverter, let me know

This post has been edited by billyboy: Jun 20 2020, 09:13 AM

4kVA

earlier i cincai called a company online..

was quoted RM16xx for repair. including dismantle and fix it back...

Some over current protection component spoil in the pc board.

Cheaper solution is look for electronic repairman.

Normal for inverter lifespan.

anyone you can recommend?



initially the rm16xx quoted- they say just to come over and take it will cost few hundred unless i can take it and send it there myself.i don't mind paying just a little more for peace of mind....

Let see next week able to find back the name card. If I remember la.

They charge like 1/3 or half the actual repair cost. Pretty cheap.

I didn't use them anymore cause I need to warranty the customer. So rather just send it back to the manufacturing.

RM1.6k is ok for the repair price. Ask for period of warranty after repair.

Some will also send to 3rd party repair if the cause is simple and easy repair. (Also my reason try 3rd party repair).