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Category: Small Engine
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Can solar panels generate 3 phase power reliably, meaning

Customer Question

Can solar panels generate 3 phase power reliably, meaning without assistance from the grid.
Submitted: 1 year ago.
Category: Small Engine
Expert:  green-owl replied 1 year ago.

Hi. It is possible to build a system that will give this but it will only be as reliable as the power source unless you have some kind of battery system. I would be able to advise better with knowing more about the power required, the geographical location and the time of the day where the power is needed.

Customer: replied 1 year ago.
Hi Martin
The power requirement is 600 amps. About half of this load is for running specialised air-conditioning units for a Plant Tissue Culture Lab. The AC needs to run 24/7 and keep the growth rooms at 24 degrees. The remainder of the power requirement will not be used at night but would be required 7am-6pm
Our location is Bunbartha, Victoria, Australia (200kms due North of Melbourne). This is a fruit orchard growing area. We get heaps of Sun here, it drives us mental.
Hope this helps
Expert:  green-owl replied 1 year ago.

That is quite a lot of power. If we assume 240V at 600 amp it mean 144 Kilo watts. At an average (including the night, 24h) of 150 W by square meter of sun and if we take 16% efficient panel it give around 24watt per square meter. This mean around 6000 panel at a price of around 600 each, we are close to 3.6 million american $ (and that does not include a battery system. (that calculation is for 24h, you can remove 1/3 of the cost if you don't need it at night).

Another option is to use thermal convertion instead of photovoltaic, you can then use a steam turbine. You can also use geothermal pipe to cool the air with the ground (remember you dont primarly need electricity but cold). As for battery, if you have enough space, you can store cold into mass again because you only really require cold. You can lower the temperature a lot only by evaporative apparatus if you have access to enough water.