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highlander76

Solar power is it worth it

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I would love to install solar panels here, but I don't think it's in my budget at the moment. I'm hoping that changes soon though. 

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20 hours ago, BritManToo said:

I've just ordered 3x 330w panels @ 2,800bht each (+500bht delivery).

https://www.lazada.co.th/products/i1388536099-s3540822457.html

 

2.5mm twin cable (15Amp 240v) is approx 10bht/metre (315bht/30m roll).

https://shopee.co.th/product/105995009/1894419490

 

Why are you paying so much more for everything?

When you are pumping up from a depth of 100 M 2.5 Twin Cable just does not hack it for a 2 HP Submersible Pump

4 MM Twin is what I got away with, but 6 was recommended.

3 of your panels would not power this kind of Pump, as you only have 1Kw of Power when 1.5 Kw is required, as an absolute minimum. Therefore a minimum 5 panels, but 6 for not working them to the full max load.

We were talking deep hole bores remember, 30 M is not considered to be deep.

If you pump up from 30 M ( or less ) then maybe 2,5 Cable would do the job, as for the Panel price, I used another posters cost to these.

Even with your figures 6 X Panels = 16,800 

delivery 500

Total 17,300

Really not a cost effective way of producing any significant power

 

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1 hour ago, Cake Monster said:

Really not a cost effective way of producing any significant power

I use 10 units/day in my household, once my 3 new panels arrive I'll be producing 5 units/day.

That's half my electricity.

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On 8/2/2020 at 9:06 AM, Cake Monster said:

Add on the Electric Cable at 80 Baht / Meter, and your costs spiral

I don't think you can add the cable to the comparison of solar vs grid supplied electricity as you'd need the cable either way.

 

That being said, unless the pump has to run a lot of hours every day, I also am not sure if powering via solar would make sense if grid supply is near. It's only worth it if you can use nearly all the electricity that it generates or if there is no grid anywhere near.

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9 minutes ago, eisfeld said:

I don't think you can add the cable to the comparison of solar vs grid supplied electricity as you'd need the cable either way.

 

That being said, unless the pump has to run a lot of hours every day, I also am not sure if powering via solar would make sense if grid supply is near. It's only worth it if you can use nearly all the electricity that it generates or if there is no grid anywhere near.

Right at the start of this thread there's a post saying a deep DC pump needs 3 x300w solar panels.

https://forum.thaivisa.com/topic/1085595-solar-power-is-it-worth-it/?do=findComment&comment=13873293

Edited by BritManToo

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1 hour ago, eisfeld said:

Did you mean to quote someone else?

Yeah, sorry .... it was Cake Monster.

Senior moment on my part.

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On 8/2/2020 at 11:04 AM, BritManToo said:

This weeks weather finally tested my battery back-up.

4hr power cut earlier in the week and a 30 minute power cut yesterday.

Was watching movies from the NAS directly on the TV, and running a big a fan, think the battery would have lasted at least 6hrs.

 

Had neighbours asking the misses how our TV was still going while they had no power.

giant ups.jpg

How did you fit it in the existing system ? I mean , you just plug it in for where you need it ? I was thinking about a bit bigger unit but same principle . but then i have to know if the power through can be higher power then the max power of the unit ? When it's on battery then the power output is lower . This is no issue since most of the time only low output is needed , only on some occasions when you use some electric motors , you need higher .

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9 hours ago, sezze said:

How did you fit it in the existing system ?

I just plug it between the mains and my 'entertainment'. It's switches to battery if the mains goes away.

I was thinking of fitting it to the fuse box, so the output of the fuse fed it, then it fed the living room power circuit.

But I'd really want a 3KVA unit for that, and they're just over 6,500bht.

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15 minutes ago, BritManToo said:

I just plug it between the mains and my 'entertainment'. It's switches to battery if the mains goes away.

I was thinking of fitting it to the fuse box, so the output of the fuse fed it, then it fed the living room power circuit.

But I'd really want a 3KVA unit for that, and they're just over 6,500bht.

Thats exactly how i want to use it , prob need some rewiring so i can use most normal things on the battery and other circuit when i need big power , thx

 

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On 2/27/2019 at 11:02 AM, Bandersnatch said:

I agree with Bob, Solar well DC pumps are a good way to start and I am very happy with mine. The last price I paid for solar panels was ฿3,900 for 320w.

 

I will be installing a full solar PV system on my new house build this year, but I agree with previous comments, if the only reason you are doing it is to save money, you are probably better to wait for more components to be manufactured in Thailand and avoid costly import duties.

Packaged deals with installation, enough power to fully power an average family house in Australia now available for AUD1,999 = 45,000Baht.

 

Some of these package deals at very low / some at zero interest to buy on monthly payments. 

 

Commentary indicates prices will come down further and include better fully packaged/integrated equipment, bigger more productive panels and easier quicker installation.  

Edited by scorecard

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On 2/27/2019 at 7:02 AM, Bandersnatch said:

I agree with Bob, Solar well DC pumps are a good way to start and I am very happy with mine. The last price I paid for solar panels was ฿3,900 for 320w.

Down to 2,600bht for a 315w panel now, CoD.

https://www.lazada.co.th/products/poly-315w-4524v-solar-cell-panel-poly-crystalline-xj315p672-i1388282244-s3540670646.html

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