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they invented the solar house during W.W.2
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designed first comerical station
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the first theoretical calculationsof the efficences of various mateirals of diffrent band gap widths based on the spectrum of the sun.
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photovoltiac technology was brought to the U.S
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western electric started selling camercial licences.
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photovaltiac cells are being created
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8% efficencie on cells
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cells are resistant to radiasion
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9% effiencice on cells
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silicone solar cells are being sold