Presentation on theme: "Renewable Energy Contents : Solar : Water : Wind."— Presentation transcript:
Renewable Energy Contents : Solar : Water : Wind
Solar Energy Solar Energy is collected by Solar panel It is extremely healthy for the planet Solar energy can be used to heat swimming pools and other things like that It can help peoples power bills and reduce carbon emissions Electrical generators work by mechanical energy transfer,. As the wind turbine causes the shaft of the generator to turn, a coiled wire attached to the shaft turns between two oppositely charged magnets. The rotation creates a difference in voltage on the two ends of the wire. In turn, the increase in electricity flows through the wire and to a main power line. The amount of electricity generated by the wind turbine depends on how much mechanical energy comes from the wind
Water Energy Water energy is made up of kinetic and potential energy. We collect water energy in hydroelectric power plants. We also collect the energy from the ocean by using wave and tides It is very healthy for the Earth.
How to make water into energy 1To use water to generate electricity, you first need to go to the source---generally, a river, ocean currents, or a large body of water, such as a lake or a man-made reservoir. The most common hydropower method generally involves building a dam across a river and creating a lake or reservoir behind it to act as a power source. 2To begin generating electricity, the dam opens gates to allow water from the reservoir to flow through penstocks---large tubes inside the dam---where it turns the blades of turbines. 3The turbines attach to generators with long shafts, which create electricity with the spinning motion caused by the water rushing through the penstocks. 4The raw electricity created by the generators then travels to the utility company via transmission lines. 5Though other types of hydropower exist, we have yet to develop them for practical use on a mass scale. 6Tidal energy works much the same way as a dam, only the the tides, rather than a river or lake, act as the power source. 7Wave energy generation works by using the motion of the waves to push air through a cylinder, turning a turbine, which then turns the generator. 8Another experimental source, known as Ocean Thermal Energy Conversion (OTEC), works by using pressure to turn warm surface water into steam. The steam then spins a turbine, creating electricity. Read more: How to Convert Water Into Electricity | eHow.com http://www.ehow.com/how_5557719_convert-water-electricity.html#ixzz1xcprarEvHow to Convert Water Into Electricity | eHow.com http://www.ehow.com/how_5557719_convert-water-electricity.html#ixzz1xcprarEv
Wind energy It is collected by using turbines originally the idea of the turbine was thought about in the Europeans It is also very healthy for the Earth It is a good idea to help stop carbon Wind power is produced by using wind generators to harness the kinetic energy of wind. It is gaining worldwide popularity as a large scale energy source, although it still only provides less than one percent of global energy consumption. The articles listed below explore wind power and its usage around the world.
Compare the pair Nuclear water Not safe safe Not healthy for the environment very healthy for the environment Can cause a nuclear disaster Can’t cause a nuclear disaster It will not kill anybody it can not kill anybody It holds no future it does hold future
Bibliography http://www.wind-energy-the-facts.org/ http://www.solarenergy-facts.org/ http://www.futureenergy.com.au/facts.html http://www.google.com.au/imghp?hl=en&tab=wi How to Convert Water Into Electricity | eHow.com http://www.ehow.com/how_5557719_convert-water- electricity.html#ixzz1xcprarEvHow to Convert Water Into Electricity | eHow.com http://www.ehow.com/how_5557719_convert-water- electricity.html#ixzz1xcprarEv