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Smart Health Talk Top Greening Your Life Tip. Solar Powered Window Socket. Are these awesome or what. Think of the applications. How about hotel rooms where they never have enough plugs. Could you carry one with you everywhere just in case of an emergency and your cell phone was dying. Just shows what kinds of things we could invent.
By using standard 2Watt Polycrystalline cells, available on sites like eBay, you'll enable yourself to build a 100 Watt panel for around $125. Some people even opt for chipped, or B-Grade cells, that produce the same amount of power but are defective by the manufacturer's standards (ie chipped corners, etc). With this choice of solar cells a completed 100 Watt panel may cost less than $70.