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What‚Äö?Ñ????ë?????´?¬¨‚Ä¢s the Power in Solar?12-10-08 | News

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This solar power plant near Seville, Spain focuses the sun?EUR??,,????'?????<

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An intriguing book just out is Physics for Future Presidents: The Science Behind the Headlines by Richard Muller ( W.W. Norton & Co., New York, 2008). Mr. Muller teaches physics at UC-Berkeley professor. His physics class for non-physic majors was recently voted the best course at the university. The book emulates his class in that it gives people (the president, our representatives ?EUR??,,????'?????<

First, solar cells are not very efficient in converting the sun?EUR??,,????'?????<

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Solar cell technology will certainly advance?EUR??,,????'?????<

According to Prof. Muller, the sun?EUR??,,????'?????<

1 kilowatt per sq. yard
1 hp per sq. yard of solar panel (an expensive solar panel can convert about 15 percent of solar power into electric power?EUR??,,????'?????<

1 gigawatt per sq. kilometer

3 gigawatts per sq. mile.

(Editor?EUR??,,????'?????< www.youtube.com/watch?v=6ysbZ_j2xi0&feature=related.)

It is being reported mechanical engineering Professor W.S. Sampath at Colorado State University has developed a ?EUR??,,????'?????<

AVA Solar, Inc. is expected to start production by the end of 2009 on the solar panel technology developed by Prof. Sampath. The new 200-megawatt factory (enough to power 40,000 homes) anticipates employing up to 500 people.

If you looking for growth companies for your stock portfolio (or just looking for one decent stock!), you might keep an eye on solar cell manufacturers. By 2010, that economic segment is expected to be a $25 billion-plus industry. Demand has increased nearly 40 percent a year for each of the past five years.