renewable energy, definition of

Electromagnetic energy transmitted from the sun (solar radiation). The amount that reaches the earth is equal to one billionth of total solar energy generated, or the equivalent of about 420 trillion kilowatt-hours.

Solar energy is the major driver of Earth's environment. About one 1kw per hour per meter square makes it way to the ground. Changes in solar energy over extended periods contributes to environmental shifts (Ice Ages).

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  Global warming, climate change, greenhouse effect and climategate; how 'valid' is the climate science?
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  The Sun's Energy can be used in way different ways, we look at the various options available.
• Solar Power - the facts about setting up Solar Power
  Solar Power systems installed at the home or office can reduce environmental impact. How solar panel systems work is described and how you and the environment benefit.
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Related Tags: renewable, energy