Daniel asks… What are Solar Panels? and how do they work? Henry Dover answers: Solar panels absorb energy from the sun and then converts it to energy that you can use. Its obviously a renewable source, so its very good for the enviorment! Unfortunately theyre expensive and there arent many of them. William asks… If [...]

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Nancy asks… Why you do not see many people in the US use solar water heater? is it because of its weight on the roof? What is the life expectancy for the solar water heater. Normal roof warranty is 20 years. It would be too much trouble to disconnect the solar panel cum water tank [...]

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I wanted to buy solar panels but this guy told me one will just power one light bulb what I want to know is how much thay cost and is it true that if more power leaves your house than goes in the power company has to send u a check The “true” cost of [...]

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Sandra asks… Are solar panel prices ever going to come down? They’ve been around for a long time, it would be nice if ,like other technologies photovoltaic cell cost would slide. Henry Dover answers: They are coming down and more states are helping with rebates. My break even time frame is about 6 years for [...]

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Sandy asks… If a typical home uses 390 kWh of electricity per month, how many square meters of solar cells would be requir? In a sunny location, sunlight has a power density of about 1 kW/m2. Photovoltaic solar cells can convert this power into electricity with 15% efficiency. If a typical home uses 390 kWh [...]

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Linda asks… tree house, structure, safety, tree health? I love tree houses, so does my husband, and we plan to some day build a really nice one, not like one that you completely live in, but maybe a living or dinning area, We don’t have the tree yet. The tree house plans will probably effect [...]

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Carol asks… if i use 50kw solar power system for 24 hour then how many carbon credit will be generate and how to sell it? Henry Dover answers: If you have a solar panel system that operates at night, you should patent it. Carbon credits apply only to governments and large companies, not to individuals. [...]

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Joseph asks… How to generate Solar Power in India? How about this ? See http://in.geocities.com/siddharth_bhatta/solardream.html Henry Dover answers: Annual insolation With about 200 clear sunny days in a year, India’s theoretical solar power reception, just on its land area, is about 5 EWh/year (i.e. = 5000 trillion kWh/yr ~ 600 TW).[1] [2] The daily average [...]

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