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Home » Reader question » Is it possible for private individuals to install solar panels in Thailand?
Dear readers,
We will be moving to Thailand soon. We have a house in Chiangmai. My husband wants to be able to run air conditioners during the day on power from solar panels. All other consumption would then simply have to be operated via the power grid. Is such a combination possible in Thailand? The sun doesn't always shine in Thailand either, so batteries are needed.
But I have also read that the sun is too hot and that causes panels to burn or have a lower yield. https://www.thailandblog.nl/?s=zonnepanelen&x=0&y=0
In other words, is installing solar panels and purchasing batteries cheaper/more favorable than simply purchasing electricity from the electricity grid? Are there expert installers in Chiangmai?
Thanks in advance for thinking along.
Regards,
Diya
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Tesla has a battery that can store power from your excess capacity if the sun shines enough, you can bridge a few days with this at some point.
As far as I know modern solar panels react not only to pure sun rays but also to light I think this should get you through most of the year in Thailand.
Search YouTube for “going solar in thailand Hans fritschi” and “Solar Powered in Rural Thailand 2020”.
So it is certainly possible.
Dear Diya,
Here in Thailand they have temperature resistant solar panels and have a good yield.
Electricity is not expensive here, about 4.5 Baht per kW, but that can increase, especially with the use of air conditioning, but it is best to use the power grid at night.
During the day you make sure to get enough production and place the surplus on the grid, you do need a license for this and I think it costs around 16000 Baht, you then get money for your electricity placed on the grid, I'm not sure but I thought about 1.5 Baht per kW.
So and now count how big your installation should be, but be sure if you install a 10KW you will come a long way and you will no longer worry about the electricity bill, which will then still be minimal.
get in touch [email protected] mr clive ogger see also website http://www.solarsolutionltd.com
Dear Diya,
of course it is possible, for example, to run only the air conditioners on solar energy (off grid) and the rest of the house on the electricity grid (on grid). Two separate power supplies will then have to be installed, one for the air conditioners (off grid) and one for the rest (on grid).
However, before starting something like this, I would first make a proper calculation of the cost price to know the usefulness of this. Since it concerns air conditioners, it concerns a reasonably large capacity and will therefore require a reasonably large production and storage capacity. In Thailand you can count on about 10 hours of production per day, so you need storage for about 14 hours and that is the largest cost in the installation.
For example, a Tesla Powerwall of 5-7KW/h quickly costs more than 10.000Eu and this is insufficient to run several air conditioners day and night, at most 1.
So make a proper calculation before you decide. I did it too and had to come to the conclusion: not profitable at the current electricity prices in Thailand.
Panels have a negative temperature coefficient of -0.4%/degree. The working temperature of the panels is set at 25 degrees. However, if the temperature rises, the panel will deliver less. Per degree -0.4%. So if a panel is 60 degrees, it produces 60-25= 35 X 0.4 = 14% less/panel.
Nevertheless, solar panels are used everywhere. You can watch videos on youtube, where people try to keep the panels cool. Well, how far do you want to go? As long as there is light, a panel supplies electricity.
Many panels possible up to 500W peak, which have different price tags.
Storage in batteries. These should be as close as possible to the inverter, because of drawn power.
Cables to the inverter must be able to handle this power, the amperage.
A solar charger is therefore required
Batteries are from 50 Ah to 200 Ah, although the latter are big boys and weigh a bit again and the costs vary.
The power to the air conditioners varies depending on when they come on, especially the compressor.
The more air conditioners, the more panels to supply power and to charge batteries.
The inverter must also be designed to deliver the power.
The panels weigh about 20 kg each. Can it hold if placed on the roof? You do need some panels, depending on the peak power supplied by the panel.
Suppose 10 panels, then that is 200 kg on the roof. Is the mechanical construction designed for this?
It's Thailand and then construction varies.
It is important how many air conditioners and the wattages. How many Watts will they use?
I think it would be better to connect the solar panels directly to the entire installation, than just for air conditioners.
After all, if panels do not supply enough, then the batteries must be powered (supplied by solar power?) and if they are low in charge and the panels do not supply any power, then everything stops. After all, there is no power to supply for the air conditioners.
Hoi
I run an air conditioner for an average of 14 to 15 hours, Daikin 22000/24000 btu with inverter.
Pay with the rest of the power consumption about 1600 thb per month. So ask yourself if you really want all of that. Think 10 years before making any judgment. Solar panels and installation cost a lot of money, although it is cheaper than the Netherlands.