  
A wind turbine is a rotating machine, which converts the kinetic energy in wind into mechanical energy. As an industry, wind power has experienced major growth in the past decade. Wind turbines, which are defined as 100 kilowatts in capacity and below, have seen their market grow significantly and the industry has set ambitious growth targets continuing at 18-20% through 2010.
 The U.S. is the leading world producer of small wind turbines, the vast majority of which are manufactured on U.S. soil. These machines are used by individuals to lower their electric bills, become independent of their electric grid, and to avoid the unpredictability of traditional energy prices.
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Alternative Energies
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 Geothermal Heating
A geothermal heat pump system is a heating and/or an air conditioning system
that uses the Earth's ability to store heat in the ground and water thermal
masses ...
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Photovoltaics
Photovoltaics is the field of technology and research related to the application
of solar cells for energy by converting sunlight directly into electricity ...
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