There are currently two economically viable ways of producing electricity from sunlight. These are

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     rooftop collectors and passive solar collection.
      photovoltaic cells and solar-trough collectors.
      power towers and dish/engine systems.
asked Jun 25, 2012 in Environmental Science by anonymous
    

1 Answer

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photovoltaic cells and solar-trough collectors.
answered Jun 26, 2012 by Geodude ~Top Expert~ (9,680 points)

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