Saturday, 31 March 2012


Renewable Energy

Renewable energy is an energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). Among the renewable energy includes hydro, wind, solar, geothermal, tidal, biomass and biofuels.


The
most common are:

Hydropower
The potential energy stored in the waterfalls can be transformed into electrical energy. Hydroelectric plants use the energy of rivers to operate turbines that drives an electric generator. Spain uses 15% of this energy to produce electricity.

Solar

it involves collecting the sun's energy through solar panels and converts it into heat which can be used to satisfy many needs. For example, you can get hot water for domestic or industrial consumption, or to provide heating to homes, hotels, schools or factories.  In agriculture you can get other applications such as solar greenhouses that favored improvements in crop quality and quantity of agricultural dryers use less energy when combined with a solar system, and desalination plants or water purification without the use any type of fuel.

Wind Power

Wind energy is the energy from the wind that is, using the kinetic energy generated by the currents of air. It’s obtained through a wind turbine that converts kinetic energy into electricity by wind half of vanes or blades which rotate a central axis connected, through a series of gears (transmission) to an electric generator.

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