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Alternative Energy Sources
from:So you want to know more about alternative energy sources in all its forms? This article will tell you what you need to know.
Alternative energy or more commonly called, renewable resources, are resources that don't require splitting atoms or burning fossil fuels. It's called renewable because it can be replaced constantly and produces less pollution compared to oil and gasoline.
Alternative energy is not new and are already being used. The only difference is, alternative energies are not yet categorized as such.
Alternative energy may come in the form of fuel cells, geothermal, wind power, biomass, hydroelectric, solar, wave energy and tidal energy.
Fuel Cells are the newest among the various types of alternative energies and are more commonly associated with electric cars (and hybrid cars). These are electrochemical devices that aim to produce power (electricity) through a chemical reaction. The main advantages of fuel cells are its ability to produce power without creating air and noise pollution. Unfortunately, fuel cells can't be mass-produced as yet because of high manufacturing costs.
Geothermal Energy is a rich source of power. For small-scale use, it takes heat from within the earth to warm residential houses, businesses and industries. For large-scale use, geothermal energy plants are used to extract steam or hot water to the surface. The steam then pushes the turbine generator to move, which produces electricity.
Wind Turbine also produces electricity. Similar to that of a Windmill, wind turbines have blades that are moved by the wind. With the help of a shaft that is attached to the blades, the wind turbines rotate the generator to produce energy. What determines the power that is supplied to the generator and is then stored to the batteries is the speed of the wind. If there is less wind, less power is produced. Strong wind on the other hand produce more electricity. The most common sites of this alternative energy source are farmland, areas where winds blow strong most of the time or places where it's much more expensive to build power lines than wind turbines.
Biomass is any form of organic matter that can be converted to biomass fuel. This could be animal waste, agricultural crops, grains, wood, mill residues, forest and aquatics plants. There are 2 uses of biomass fuel: one, it's used as a material to heat water to produce steam, and two, to be processed as a gas or a liquid (alcohol).
Solar Energy is the most common energy that can be utilized efficiently and safely. The power comes from the sun that is extracted by solar cells that will instantly convert it to energy.
Water As a Source of Alternative Energy: Hydroelectric Energy is commonly used in dams. Turbines that are moved by water current can generate power instantly. The cost may be high, but once dams are built, power is virtually free. Tidal Energy is a small scale version of a dam. It doesn't require building big dams, rather, it uses turbines that are embedded on waters. When tides change, water moves, and when water moves, the turbines move; when turbines move, it produces energy. Wave Energy, on the other hand, gets its power from the fluctuation of water below the surface, or from surface waves.
So there you have it, some of the of alternative energy sources we may see in higher use in the coming years as we try to reduce our dependance on fossil fuels.
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