State Energy Conservation Office-Texas
State Energy Conservation Office: Renewable Energy Guide for Buildings [Pdf]
A basic guide for ways to be more energy-efficient and to use more renewable energy sources in a building. These include methods of reducing heat or cool air loss, ways of harnessing solar energy, and using the wind for ventilation.
US Department of Energy
U.s. Department of Energy: Energy Basics: Renewable Energy: Geothermal
Find out about renewable energy resources using geothermal technologies as the source. Learn how scientists have discovered how to utilize sustainable heat from the Earth using several methods.
State Energy Conservation Office-Texas
State Energy Conservation Office: Generating Electricity With Biomass
Discusses the overall picture of biomass use as a source of renewable energy in the United States. Five methods of generating electricity from biomass are described.
Science Struck
Science Struck: Methods of Generating Electricity
Provides brief descriptions of the different methods used to generate electricity.
NOAA
Noaa: Ne Mo: Chemosynthesis
Deep under the ocean there is no light for plants to perform photosynthesis. This site is a good overview of the alternative energy method, chemosynthesis. Read all about it.