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Renewable Energy Overview

Geothermal Energy
Geothermal Energy
Renewable energy resources are those, unlike fossil fuels like coal, oil, and natural gas, can be replenished or continually harnessed in some way, without end. Some of the most common renewable or alternative energy sources include solar, or photovoltaic, wind, hydrogen and geothermal. The following provides a quick summary of these four forms of renewable energy resources.

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Resources

Information on sustainable living and renewable resources (solar, wind, geothermal, etc.)

A fascinating timeline of solar energy - The History of Solar (opens a pdf document) from the Department of Energy.

Here's a decent one-minute animated video, also from the Department of Energy, showing how solar cells convert sunlight into electricity.
 
(C) 2008 Renewable Energy Resources