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Where To Buy Solar Hybrid Inverter And what to buy


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2 hours ago, Seeall said:

Could you ellaborate  on this "Thailand Special Line" please?  We have given importing anthing as the duty is always over the top.. like 55usd for a 50usd pool light...

whist lazada and shoppy seem to bring things in with minimal mark up,,

Eh?

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Those batteries are indeed a find. Wish I needed them now........... https://shopee.co.th/BYD-LiFePO4-แบตเตอรี่ลิเทียมฟอสเฟส-ยี่ห้อ-BYD-ขนาด-1P8S-24v-260Ah-เป็นโมดูลสำเร็จรูป-ใส่แต่-BMS-ใช้งานได้

The setting you need is 14 which is for LiFePO4 batteries. You can set up the maximum charge voltage with this setting. There is probably also a default setting for this. Once you have selected t

If it's not busted, don't fix it 🙂 

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2 hours ago, Crossy said:

Minimum PV voltage 100V (lower than that and it won't start).

For minimum read Recommended or did I read the spec. wrong.

For me the maximum charge current (36A) is a bit low. What is the battery capacity?

Don't forget these are "when new" specs.

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3 minutes ago, Muhendis said:

For minimum read Recommended or did I read the spec. wrong.

For me the maximum charge current (36A) is a bit low. What is the battery capacity?

Don't forget these are "when new" specs.

For the 8k unit max charge  is 120A

 

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2 hours ago, Pink7 said:

I think "each" refer to ports, not boards.

Boards? I don't think I mentioned boards. Let me check........

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7 minutes ago, Muhendis said:

Boards? I don't think I mentioned boards. Let me check........

Your right , i misread you

 

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4 hours ago, Crossy said:

I read that inverter spec as:-

 

Minimum PV voltage 100V (lower than that and it won't start).

Maximum PV voltage 500V, open circuit (above that and it fries).

Maximum PV current 18A on each MPPT port (2 of them).

 

Overall a total of 8000W of input split between the two ports. Check your panel's VMP (max power voltage) and get them to add to 200-400V (our inverters specify a recommended MPPT voltage range). The unit will adjust for max power anyway. Check that the total VOC for your panels doesn't exceed 500V (this is probably the most important number to avoid killing your inverter).

 

EDIT

Our Trina 345W panels have:-

Max power voltage 35.4V

Max power current 7.26A

Open circuit voltage 43.2V (so you could have 11 in series on each input)

 

You could have two strings of 6 series panels in parallel on each input (14.5A and 212V) for 4140W per input.

How is your experience with Trina? Whats your thoughts on mono vs poly? I think i might go with poly if the deal is the right. used vs new boards?

 

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9 hours ago, Muhendis said:

For minimum read Recommended or did I read the spec. wrong.

 

To my engineering brain "minimum" means "lowest at which it will work". Minimum PC spec. for Windows 10 is something like a 1GHz processor and 1GB of RAM, nobody would run a PC that limited, it really would be barely functional.

 

Our Sofar manual is rather more informative in specifying maximum, start-up, nominal, MPPT operating range and full load voltage range. Possibly a case here of too much information.

 

I would take "nominal" as the aiming point (sum of your panel max power voltages), "maximum" as the never to be exceeded value (sum of your panel O/C voltages). The minima would be useful if you didn't have a full complement of panels to ensure things will actually function. 

 

1168043563_solarinput.jpg.f12df23d26ea61f8e537768db6f73b83.jpg

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33 minutes ago, Crossy said:

 

To my engineering brain "minimum" means "lowest at which it will work". Minimum PC spec. for Windows 10 is something like a 1GHz processor and 1GB of RAM, nobody would run a PC that limited, it really would be barely functional.

 

Our Sofar manual is rather more informative in specifying maximum, start-up, nominal, MPPT operating range and full load voltage range. Possibly a case here of too much information.

 

I would take "nominal" as the aiming point (sum of your panel max power voltages), "maximum" as the never to be exceeded value (sum of your panel O/C voltages). The minima would be useful if you didn't have a full complement of panels to ensure things will actually function. 

 

1168043563_solarinput.jpg.f12df23d26ea61f8e537768db6f73b83.jpg

Yup you're right. The spec. clearly says "minimum recommended". In other words a headroom of 40v or so above the maximum charger output into a 48v system however that doesn't mean to say it won't work below 100v. 

 

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On 6/11/2021 at 3:50 PM, Pink7 said:

So its rainy season soon, any experience on better deals on solar panels when rainy season ?

 

Pink

The weather has no affect on the price of solar panels but I did notice today that Ruangsangthai near Buriram have some 330W panels for 2,800 Baht.

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1 hour ago, Muhendis said:

The weather has no affect on the price of solar panels.

Yes, my wife told same..  Last day i saw a documentary on you tube on how china have taken over the solar panel market both on quantity and quality, and then also pricing. I thought still Germany and Usa was in the front seat, so its good to get some updated knowledge.

 

 

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35 minutes ago, Pink7 said:

Yes, my wife told same..  Last day i saw a documentary on you tube on how china have taken over the solar panel market both on quantity and quality, and then also pricing. I thought still Germany and Usa was in the front seat, so its good to get some updated knowledge.

 

 

Pink

Some say the Chinese government is subsidising these companies.  Do I care? 

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1 minute ago, Muhendis said:

Some say the Chinese government is subsidising these companies.  Do I care? 

Yes that was mention too.. 

 

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Other governments used to give subsidising to users of solar panels , If Chinese government saw a market potential and did the same for the production part , what is the difference ? Bad for US and EU companies , yes probably . But both US and EU are not really hungry for production of anything anymore ( some individual countries are starting to change policy since they see a lack of qualified persons of the production which is still there and the total dependency to other countries) .

Anyway , yes China provided means to have huge solar supply dropping the price fast from where it has been .

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1 hour ago, sezze said:

yes China provided means to have huge solar supply dropping the price fast from where it has been .

Other countries are equally free to do that if they have the political will but as you commented, most do not. It should really be an integral part of "green" policy to help ween people off reliance on fossil fuels.

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  • 4 weeks later...

So, the Forum: Alternative/Renewable Energy Forum don't exist anymore?

 

Anyway, I found this website for calculating or get an idee how much you can save on an annual basis with your solar panels:

pvwatts.nrel.gov/

It is an American government website, but also applicable here in Thailand, give your own coordinates in etc.

 

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On 6/5/2021 at 4:41 PM, BritManToo said:

Would point out every 'pre-order ships in xx days' I've encountered on Shoppee was some sort of scam.

I'll finish with Shopee, the last 4 orders, all go wrong, 3 times I've got less than i order, and one time it was compete different with what i order.

Also, i order 4 legs (35 cm stainless steel), of course pay for 4 but get one. After complaining they told me they will send me 3 later, all from China.

This happens 3 weeks ago.

Because i was not willing to wait again, i order 4 the same legs direct in China (same price), and guess...if got them already but the 3 through from Shopee, i still waiting for that.

And you know, when you complain at Shopee, you'll get the same answer sorry bla, bla, bla, but no solution.

FINISH with Shopee!

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