Sources Of Renewable Energy Available Today

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The search for renewable energy resources has discovered various forms of renewable energy. Arguably, the most widely known is solar power. Photovoltaic cells are the backbone of solar power; the technology of which is steadily getting less expensive and more advanced. Solar power can be used to generate electricity, space heating and cooling, cooking and much more. As with many forms of renewable energy there is no pollution produced from solar power. There is still work to be done to more economically harness the power of the Sun. Because of the intermittent nature of sunlight, a connection to local power sources, the use of lead-acid batteries or another form of renewable energy is required to prevent power outages for the homeowner.
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A suitable way to supplement solar photovoltaic cells is with a wind turbine system. Wind Energy is actually the most invested in form of renewable  energy; a combination of private investors and governmental incentive. Wind farms are appearing all over the globe. Large tracts of land and even areas of ocean are being established to cultivate the power of the wind. There are no new ideas under the Sun, windmills have been used to convert the kinetic energy of the wind into mechanical energy to mill grain for centuries. Modern wind turbines are simply the new incarnations of a long established idea. Smaller wind turbines are available for individual use also. There is still more research necessary with wind energy technology, days without wind require a connection to local power or a store of lead acid batteries. Although, on days when demand is less than the power generated, many states have net metering laws, which compel electric companies pay individuals retail rates for energy they make available to the power companies.
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Another source of renewable energy is hydroelectric power. Hydroelectric energy is power generated through the action of falling water. In other words, the motion of the water as it moves downhill is used to spin turbines which produce electric power. It seems simple, but the effort and technology needed makes hydroelectricity complicated and expensive to produce. Usually a dam is built to provide more precise control over the flow of water. It is costly to build and operate a dam, not to mention the environmental impact. However, a dam is not always necessary to provide hydroelectricity. Small, run of river hydroelectric converters are available for the provision of electricity to individual homes, offices and even entire neighborhoods.
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Geo-thermal energy is another form of renewable energy. Geo-thermal energy is the energy stored in the hot artesian waters trapped just below the earth’s crust. The earth‘s core heats the water. Various methods are used to harness the energy stored in these waters. Dry steam power plants use geothermal steam to turn turbines to generate electricity. Flash power plants draw hot, high-pressure water from deep in the earth. The high pressure water is released into low pressure tanks. The resultant steam is employed to drive turbines which produce electricity. Binary cycle plants run semi-hot geothermal water by a secondary fluid with a lower boiling point. The flash vapor from the secondary fluid is used to drive the turbine.
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There are still other sources of renewable energy being developed. An energy independent future seems to be within our grasp!  Renewable Resources
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Sources Of Renewable Energy Available Today
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