
Solar energy exempted from sales tax (The Buffalo News: Fri, 25 Apr) Erie County will follow the state's lead and not charge sales tax on the purchase and installation of residential solar-energy systems.
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Solar Power Lightens Up with Thin-Film Technology [Features] (Scientific American: Fri, 25 Apr) The sun blasts Earth with enough energy in one hour--4.3 x 1020 joules--to provide all of humanity's energy needs for a year (4.1 x 1020 joules), according to physicist Steven Chu, director of Lawrence Berkeley National Laboratory. The question is how to most effectively harness it. Thin-film solar cells may be the answer: One recently converted 19.9 percent of the sunlight that hit it into ...
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