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Exponential growth of computing. 20th to 21st ...Image via Wikipedia

In his call to action two weeks ago, Al Gore compared the future development of solar electricity sources to the development of the semiconductor industry. His implication was that Moore’s Law, which reliably predicted that the price/performance of semiconductors doubled every 18 months, would also apply to photovoltaics.

ComputerWorld, in an article two weeks ago, assesses this comparison as flawed. (As did Harry Gray of Cal Tech, as I reported earlier today.)

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Harry Gray, the Arnold O. Beckman Professor of Chemistry and Founding Director of the Beckman Institute at CalTech, spoke at the American Chemical Society annual meeting in April of this year.

Expert Foresees 10 More Years Of Research & Development To Make Solar Energy Competitive

Gray emphasized this point: “The pressure is on chemists to make hydrogen from something other than natural gas or coal. We’ve got to start making it from sunlight and water.”

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