I’m building a solar panel and I wanna know what are the best cells to use and why and is there a chart I can view to what’s the cost and what’s the watts it produce this would really help and thanks for the help
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On occasion, I’ve seen people selling boxes of solar cells on craigslist, for $ 2 / watt. I just checked now, and didn’t see any. Maybe eBay has some. You can also try these guys http://www.goldmine-elec.com/SolarItems.html at about $ 6/watt. Note that you can buy a ready-made panel for cheaper than making one with $ 6 cells. And the ready-made panel will be weatherproof and warranteed.
I have been studying this question for the last several weeks and finally decided on 3″ x 6″ solar cells from Evergreen which I bought on eBay for $ 79.00 for 36 of them (+2 because they break easily) including the tabbing wire, solder, and other things necessary to construct a solar panel (except for the frame). If I do it again, I probably will buy the chipped (but not broken) “B” cells in order to get more watts for the dollar. I all but copied this project:
http://www.mdpub.com/SolarPanel/index.html
This solar panel should produce 63 watts, i.e. 18 volts x 3.5 amps
Another good source to get you started is the following:
http://www.ehow.com/how_4699291_wire-solar-cells.html?ref=fuel&utm_source=yahoo&utm_medium=ssp&utm_campaign=yssp_art
solar cells sell for between $ 10 and $ 6 per watt. The price depends on quanity. to get the price down to %6, you will have to install enough for a city, maybe a $ 100,000,000 price tag. A house is about $ 8 and a small kit is $ 10.