Thanks for sharing.

I'm in a dilemma on which solar companies to go with.
Company A offers 11.80kWp for RM38k
Company B offers 13.12kWp for RM47k

Monthly bill around RM850 or 1650kWh. While option A is cheaper but savings of RM650 monthly isnt a lot and with a small size (kWp), doesnt feel future proofing if tariff increases.

Advise?

This post has been edited by merchant9: Sep 7 2023, 06:16 AM

If you are a heavy user like me, go for 13.12Kwp ..... At my time max was 11.7kwp else I would have gone higher.

This post has been edited by etan26: Sep 7 2023, 08:50 AM

it depemd on the PV panel that the vendor using and also the roof size that your house can fill to.

Your aim should be to reduce consumption to roughly 300 kwhr .
Based on 3.5 sun hour/ day average@30 days
1300/3.5/30= 12.38kw

However some companies use single phase inverter to reduce cost.
Do you know why company B is charging 9k extra for only 1.3kw increase?

u need to do is compared the same system.
1) What your roof size can fill
2) what brand of inverter u prefer (eg. Huawei are more expensive as the cable use are required to be in standard)

Based on above, then you ask them to give u the quote.

I have 4 vendor which all given me difference price, so I just told them what brain and what kwp I expect then give the quotation and offer.

Hope this help

https://soyacincau.com/2023/06/27/higher-el...ll%20of%20RM708


No idea on the additional cost actually. Price not competitive enough.




Max 24 panels. Solis inverter, any comment? Got a new offer for 14.16kWp for RM43k.

Why not try micro inverter? Am using it and really feel it’s way better and safer.

I was offered
Company A
5.88kWp Jinko panels qty 10
4kWp HUAWEI inverter
60months EPP
Rm19900

Company B
6.11 TW panels qty 11
7.5k SAJ inverter
36 months EPP
Rm17180

Same warranty
Solar panels 12 years product
Inverter 10 years

What other should be considered?

With the Budget 2024 announcement on the 13th Oct, care to share if u think the terms will be better that NEM 3.0? TQ

This post has been edited by aerotec: Oct 2 2023, 04:36 PM

To be honest, better go for micro inverter. Price also in between or lower than what you are quoting with similar kwp.

inverters die about 8 to 12 years. big box inverter can repair. micro-inverter - i heard - just replace.

pros and cons.

which micro-inverter brand are you using ?

Gila-lu, moon heat? Maciem itu semi valu wan to take roket to the sun but travel at night.

Yes. String inverter lifespan is around there.

Micro inverter is 25 years.

So I expect hassle free within 25 years for the micro. But by chance if it breaks, I think the probability also very low.


Yes. Just replace.

Using hoymiles.

How much is monthly TNB bill only viable to install company A? My current TNB bill is RM110 per month

This post has been edited by adam71: Oct 2 2023, 05:38 PM

If rm110 bill, there is little temptation to install. Because you are in the range of subsidize rate. However, subsidize rate could be removed anytime.

So if you insist on installing, a small kwp system around 13-15k will be sufficient.

The roi isn’t great but u don’t lose anything.

Hi sifus,

I was offered the following quotations:

Supplier A:

6.6kWp
Longi Solar (Tier AAA) 550Wp Monocrystalline PV module x 12 (warranty 12 years)
Hoymiles Micro-inverter HMS-1600 x 3 (warranty 12 years)
Price RM23k (48 months EPP from credit card)

Supplier B:
Option 1
6kWp
Canadian Solar CS6.1-72TB-600 x 10 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x2 (warranty 12 years)
Hoymiles Micro-inverter HMS1000 x1 (warranty 12 years)
Price RM24k (60 months EPP from credit card)


Option 2
6.9kWp
Longi Solar (Tier AAA) LR5-72HGD-575M x 12 (warranty 15 years)
Hoymiles Micro-inverter HMS1800 x3 (warranty 12 years)
Price RM27k (60 months EPP from credit card)

Can you please advise which one is the better deal?

Many thanks in advance.

This post has been edited by alen_wong38: Oct 5 2023, 11:38 AM

Isnt 6KWp is low? How you done your calculation based on current amount/Kwh usage?
Do check our fellow member here who has a sample
https://forum.lowyat.net/topic/5055006/+240#

Deleted

This post has been edited by killeralta: Oct 5 2023, 01:01 PM

Only 3 person staying. electricity bill about rm300+ ish

Is there big difference whether the solar panels are P or N type? Apparently N type is 1-2% more efficient to P type.
Thanks for sharing your knowledge.

Actually I was also told that N type is better than P type bla bla bla... when i googled it the performance difference, like you said, 1-2% better; but price wise, 15-16% more. My previous post Supplier A using P-type, while Supplier B using N-type, price difference is already about 4k

This post has been edited by alen_wong38: Oct 5 2023, 02:55 PM