Renewable Energy Sources



Solar panels Solar panels
Solar
The sun's light hits the surface of earth with energy that can amount to 1 Kilowatt Hour per square meter per day in the warmer parts of the United States. Solar collectors can provide energy for hot water supply and for heating and cooling (using heat pumps) of buildings and homes. Solar energy can be converted to electricity either via high efficiency low cost photovoltaic cells or via light concentration systems that generate steam to create electricity by steam turbine driven generators.

Geothermal
Wherever available, geothermal energy - hot water or steam extracted from geothermal reservoirs in the Earth's crust - can be used for heating and cooling and for generating electricity.

Windmills Windmills
Wind
High efficiency, low cost wind turbines can generate electricity along coast lines and mountain ridges to provide substantial amount of the nation electrical power.

Hydro power
Sophisticated smartly positioned systems of medium and small dams and small hydroelectric generators can generate electricity using river and tide water and can also be utilized for storage of unevenly generated energy, such as energy generated by solar power and wind, by using such energy to pump water to elevated reservoirs and recovering it in the form of hydropower.

Biomass
Renewable fuels can be made from organic matter such as agricultural crops (Sugar canes and sugar beets are two of many examples of suitable crops,) crop-waste residues, animal and municipal waste, and wood.

Additional information:
Renewable Potential maps
Property of The Institute for the Analysis of Global Security 2003, 2004. All rights reserved.