By e-Learning SMKDM

Sunday, 10 July 2011

Alternative sources of energy / Sumber Tenaga Alternatif

Geothermal power
1.Geothermal energy comes from heat energy buried beneath the surface of the earth.
2.The heat rises close to the surface of the earth, is used to heat the underground water into steam, which can be tapped for used in steam-turbines plants.




Solar power
Solar power is derived from the energy of the sun
Solar-thermal electric generators use the radiant energy from the sun to produce steam to spin the turbines




Biomass
Biomass include wood, garbage, and agricultural waste to produce electricity
This sources replace fossil fuel in the boiler




Wind power
Wind power is derived from the conversion of the energy contained in wind into electricity

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