Alternative Energy Resources Essays

1104 Words 5 Pages
The energy that is used today comes from fossil fuels, which is a nonrenewable limited resource that will eventually be used up. Alternative energy sources such as solar, hydroelectric, geothermal and wind energies can be used, to conserve the planets limited natural resources. Alternative energy is the use of another energy without the burning of fossil fuels and break up on atoms. Solar energy can be used to operate cars and provide electricity for homes and businesses. Hydroelectric energy can be used to provide electric power to small towns and cities. Geothermal energy can be used to heat buildings or water and to power turbines to make power. Wind energy can be used to pump water and generate electricity. Solar energy is of …show more content…
The most common type of hydroelectric power comes from using a dam on a river or lake. Water is discharged from the reservoir, which spins the turbine, which activates a generator to get electricity. Hydroelectric power does not require a large dam. Some hydroelectric power plants just use a small canal to channel the river water through a turbine. (Union of Concerned Scientists) Third, geothermal energy is heat from the earth that is used directly as hot water or steam, or used to produce electricity. Geothermal energy is contained in underground reservoirs of steam, hot water, hot dry rocks and hot spots. Geothermal hot spots are volcanic features which are found all around the world. Basically a hotspot is an area of reduced thickness in the mantle which transmits excess internal heat from the interior of the earth to the outer crust. These hot spots are well known for their unique effects on the surface, such as the volcanic islands of Hawaii, the mineral deposits and geysers in Yellowstone National Park, or the hot springs in Iceland. These geothermal hot spots can easily be used to generate electricity. (Alternative Energy Sources)
They are used at electric generating facilities, hot water or steam extracted from geothermal reservoirs in the Earth's crust is supplied to steam turbines at electric utilities that drive generators to produce electricity. Moderate to low