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The Alternative Energy Sources
from: Lynn KenilworthWe all want to know more about alternative energy sources and its forms. Hopefully this article will tell you what you want to know.
Alternative energy or commonly called renewable energy resources are those that do not requiew atomic energy or burning fossil fuels. It is called renewable because it can be replaced constantly and would create less pollution compared to oil and gasoline.
Alternative energy is not new. Since energies are discovered, alternative energies 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 types of alternative energy and are more common in electric cars ( some, hybrid cars ). These are electrochemical devices that aim to produce power ( electricity ) through chemical reactions. The main advantages of the use of fuel cells are its ability to propel a car without creating pollution. Meanwhile, fuel cells cannot be mass - produced yet because of high manufacturing costs.
Geothermal energy is one rich source of power. For small-scale use, it takes heat from within the ground to warm residential homes, businesses and industries. For larger buildings, geothermal energy plants are used to extract steam or hot water to the surface. The steam then pushes the turbine generator which generates electricity.
Wind turbine can produce electricity. Using the same principals as a windmill, the wind turbines blades 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. The stronger the wind, the more energy is produced and stored in batteries for use as needed. Wind turbines are most commonly seen on farmlands, areas where winds blow strong most of the time, or places where it is 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 two uses of biomass fuel: one, it is 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 form that can be used efficiently and safely. The power comes from the sun that is extracted by solar cells that would instantly convert it to power.
Hydroelectric or water energy is commonly used in dams. Turbines that are moved by water current can generate power instantly. Initial costs are high but once dams are built, the power is virtually free. Tidal energy is a smaller version of dams. It does not require building big dams. Instead, 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 as you can see, there are many kinds of alternative energy sources.
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