Solar Hybrid System Costings

[wozzlegummich]

Been quoted ฿180,000 fully installed for a solar system.

12KW hybrid inverter grid tied
15 KWH battery
10KW of solar panels 
Includes all breakers, cabinets, wiring etc. Nothing else to pay.

I know what this would cost in Australia but I was wondering is this a reasonable deal in Isaan or Thailand? 

[BritManToo]

About the best offer for an installed system that I've heard so far.

12k inverter= 25kbht

15kwhr battery = 55kbht

10kw solar panels = 40kbht

 

Don't think you'll find cheaper, unless DIYing.

[carlyai]

Maybe B20000 for installation. 

If we go by BritManToo hardware costing then B140000, but I haven't done it.

 

[UWEB]

5 hours ago, wozzlegummich said:

Been quoted ฿180,000 fully installed for a solar system.

12KW hybrid inverter grid tied
15 KWH battery
10KW of solar panels 
Includes all breakers, cabinets, wiring etc. Nothing else to pay.

I know what this would cost in Australia but I was wondering is this a reasonable deal in Isaan or Thailand? 

Price depends on what for Equipment Manufacturers they will use for Inverter, Battery and Panels.Is it 1 phase or 3 phase?

[KhunLA]

Why 10kW of panels, with 12kW inverter ?

[wozzlegummich]

19 hours ago, UWEB said:

Price depends on what for Equipment Manufacturers they will use for Inverter, Battery and Panels.Is it 1 phase or 3 phase?

Single phase 220V 50HZ 
Battery is LVTOPSUN Company (Prismatic EVE cells - JK BMS)
Inverter is LUXPOWERtek LXP-LB 12K
Panels unknown as yet

[wozzlegummich]

19 hours ago, KhunLA said:

Why 10kW of panels, with 12kW inverter ?

I'm new to this. But it is probably because of string voltage limitations. I have that question in my long list.

[Crossy]

12 minutes ago, wozzlegummich said:

I'm new to this. But it is probably because of string voltage limitations. I have that question in my long list.

 

DC input max of your inverter is 600V and it has 3 MPPT inputs.

 

Depends upon the panels but I would expect a 9S or 10S string of 500W panels on each input (1 input seems to be able to do 25A so 10S2P could work there).

 

https://luxpowertek.com/wp-content/uploads/2023/07/LXP-LB-US-12k-user-manual.pdf

 

[KhunLA]

59 minutes ago, wozzlegummich said:

I'm new to this. But it is probably because of string voltage limitations. I have that question in my long list.

Only asked as our 8kW inverter has 9.7kW of panels of 10.4kW max imput.  Will output 8.8kW if sun is playing nice, which I've only noticed doing once 🙄

 

[rwill]

I would get them to add some more solar panels. 

 

My 10kw inverter has about 12kw of panels.

 

The batteries are the expensive part.  You might find yourself wanting another battery in the future.

 

 

[Garouda]

For historical reasons, there are three off grid solar systems at my place. 

One 1 kW PV array, 4×250W with one 1kW inverter. 24V battery bank. (+/- 30 000 THB)

Coming next one 3.25kW array, 10 × 325W panels, one 3.5kW inverter, 96 V battery bank.

I bought eight 150 AH gel batteries last year, 64 000THB. 

The last one is 4 × 625W array, hybrid controller inverter 3.0kw 24V battery bank. I must have paid some 7 550 THB for the inverter, I've just bought four 100 AH Li FePO4 batteries, 24 000 THB, add another 30 000 THB for the panels and some accessories, total around  62 000 THB.

Li FePO4 batteries have become less expensive and last much longer than flooded batteries,

We have two fridges but no aircon, daily consumption 4.5-5kWH.

The first 1.0 kW system is not used for the house any more, but for a small house 100m away used now and then by my wife's children, The two other systems are used separately and there's a transfer switch.

I like that two systems approach because, like any technical system, they can fail.

I was about to forget another 6×400W array for my deep well pump. The deep well was a budget of +/-70 000 THB all included. The panels were placed by local workers, I did all the wiring by myself.

The budget was the cost of materials plus manpower at local price, I did all the electricity..

Unfortunately, the file with the detailed account was on a drive that crashed.

pn27s3BDxd0   This is the YouTube address for the deep well, the link isn't active because YouTube does not allow it, just paste in the search function. I made other videos, but they are in French.

 

[Garouda]

There's a fair in Bangkok, next month, Asia Sustainable Energy Week, 2-4 July. Queen Sirikit Centre.

https://www.asew-expo.com/2025/en/index.asp

[Sophon]

13 hours ago, Garouda said:

There's a fair in Bangkok, next month, Asia Sustainable Energy Week, 2-4 July. Queen Sirikit Centre.

https://www.asew-expo.com/2025/en/index.asp

It's only for businesses, ordinary people are not allowed to visit.