Thursday, May 7, 2009


The use of renewable energy sources to replace coal, oil and natural gas is one of the primary methods for achieving a more sustainable future. Renewable energy sources include biofuels, solar energy, wind energy, and geothermal energy. Below is a discussion of each of these sources as community or regional energy sources. The use of these renewable energy sources on individual buildings is later in this blog under the section dealing with sustainable building design.

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