How Wind Energy Works

How Wind Energy Works
http://www.ucsusa.org/clean_energy/renewable_energy_basics/how-wind-energy-works.html

How Solar Energy Works
http://www.ucsusa.org/clean_energy/renewable_energy_basics/how-solar-energy-works.html

How Biomass Energy Works
http://www.ucsusa.org/clean_energy/renewable_energy_basics/offmen-how-biomass-energy-works.html

How Geothermal Energy Works
http://www.ucsusa.org/clean_energy/renewable_energy_basics/offmen-how-geothermal-energy-works.html

How Hydroelectric Energy Works
http://www.ucsusa.org/clean_energy/renewable_energy_basics/how-hydroelectric-energy-works.html