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Solar energy

solarSolar energy is light and heat energy from the sun. Solar cells convert sunlight into electrical energy. Thermal collectors convert sunlight into heat energy. Solar technologies are used in watches, calculators, water pumps, space satellites, for heating water, and supplying clean electricity to the power grid. There is enough solar radiation striking the surface of the earth, to provide all of our energy needs.

 

 


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Biomass energy
Biomass is material of plants and animals that can be used for energy.
Geothermal energy
Geothermal energy uses heat energy from beneath the surface of the earth.
Hydroelectric energy
Fast-flowing water released from dams in mountainous areas can turn water turbines to produce electricity.
Tidal and wave energy
Electricity can be obtained by the flow of water through turbines in a dam as the tide rises and falls.
Wind energy
Moving air turns the blades of windmills or generators to make electricity or to pump water out of the ground.

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