Wind
Darrieus wind turbines use a vertical axis system that allows the turbine to be closer to the ground.
Biomass
Biomass is a source of energy that includes wood, agricultural products, solid waste, land fill gas and liquid fuels.
Hydroelectric
Gravity and water play key roles in the production of electrical energy from falling water.
Geothermal
The Earth’s interior heat supplies energy to produce electricity from steam powered generators.
Nuclear
About 100 nuclear plants supply energy to various communities, especially in the Midwest and East.