I want to use solar power to run my home appliances, lights, fans…. I want to produce a 60-70 kilowatts electricity power (per day) from solar power. How can I do it? What do I need to do it?

Please let me know step by step instructions, or details/links.

thanks

Best answer:

Answer by Peter H
First get out your calculator. Looking at a little panel (just under 9 inches square) at
http://www.batterystuff.com/solar-chargers/SP-5.html

this will give out 5 watts. For 60 kW, you will need 60000 / 5 = 12000 of these, covering an area of 6750 square feet or 750 square yards. Not many people have a roof that size facing the sun. Perhaps you mean 60 kilowatt-hours through the day. Then, of course, the sun is up for only part of the day, so you will have perhaps 8 hours to generate the daily requirement at 60000 / 8 = 7500 watt output, needing an area of only 840 square feet, still big but now manageable. You need to generate more than you need in the daytime to store some of the electricity for night-time use. The only practical form of storage is batteries. A big car battery is rated at 12V 100 ampere-hours, equivalent to 1.2 kWhr, so you will need about 40 of those for your evening and night consumption. After that you need an inverter, which turns the DC produced by the solar panels and stored by the batteries into AC mains voltage to power all your domestic equipment. The inverter is not 100% efficient and the sun is often obscured by cloud and rain, so you might start by doubling all these dimensions. This is going to be a very expensive exercise.

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