Dave offers education DSLR Video videos.
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http://www.solardave.com/index.php/which-solar-panels-to-use/ Namaste Solar primarily installs from three manufacturers; SunPower, Sharp and Kyocera. Your Sunpower panel and your Sanyo are you two high efficiency high end panels, so must power per square foot but also the most cost per watt as well. Those panels are very popular when you have very limited roof space and you want to maximize how much power you get on your roof. Sunpower also has the nice added benefit of an all black ascetic th...