Alternative Energy

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Alternative Energy Tidal power and Ocean
Thermal Energy Conversion

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Alternative Energy

• Alternative energy sources that are still in
  development
• Must be cost effective
• Must be environmentally sound

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Tidal Power

• Energy source gravitational attraction between
  the sun, moon and Earth

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Tidal power

• Used to generate electricity in countries such as
  France, Russia and Canada
• Works much like a hydroelectric plant

Cost to build and maintain is high
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Ocean Thermal Energy Conversion

• In tropical waters the temperature difference
  between the surface waters and deep water can be
  as much as 24 degrees Celsius

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• This technology relies on the concept that water
  boils at a lower temperature in a vacuum
• The cold water is used to cool the steam

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Problems

• It takes energy to pump the cold water to the
  surface
• Environmental effects of bringing large amounts
  of cold water to surface are unknown