How Photovoltaic Systems Work

The US Department of Energy put out this great series of videos on YouTube recently explaining some basics of solar power and home energy. Energy 101: Solar PhotoVoltaics   Energy 101: Geothermal Heat Pumps   Energy 101: Wind Turbines   Energy 101: Cool Roofs   Energy 101: Concentrating Solar Power

Tags: cool roof, energy saving, Geothermal heat pumps, photovoltaics, solar photovoltaics, wind turbines