264 comments on DrumBeat: May 30, 2008
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264 comments on DrumBeat: May 30, 2008
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Simply buy groups of individual cells on ebay and build the panel yourself, it's not rocket science. A simple panel, and charge controller/inverter design can be found here http://www.mdpub.com/SolarPanel/index.html but you may want to build yours to last. I believe most of the cells come from factory seconds or damaged panels. If you have the time it's well worth it. Enjoy.
Feel free to email me steven.j.moody[at]gmail.com if you need more info.
If you were to have the cells seperated enough, you could use fresnel lenses to increase the output per cell, although you would then need to add a heat-sink to the back of the cell to avoid frying it. An example of such a thing I found was at:
http://www.greenandgoldenergy.com.au/
You could also use mirrors to amplify the output as well, for less of an effect...
Indeed. I've also started scraping old rear projection tv's for their Fresnel lens. Great for cooking and potentially a valuable barter item in the next 15-30 years. Typically you can pick up a 50" lens for $10-$40.