DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY
Solar and wind power. Artwork of wind turbines behind a row of solar panels with sunlight glinting at lower right. Solar panels generate electricity by harnessing the energy in sunlight. Wind turbines generate electricity as the wind turns the blades to drive the turbine. Both solar and wind power are renewable and clean sources of energy.
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