Solar power, whether from concentrating solar, photovoltaics, or solar thermal, is a renewable energy source that also contributes to the energy mix. Solar power plants can face high installation costs, although this has been decreasing due to the learning curve. Solar power has great potential, but in 2008 supplied less than 0.
21 Şubat 2012 Salı
Bill McKibben Talks Keystone XL on the Colbert Report
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