Solar, Wind, And Geothermal Energy Sources: How They Differ

Published: 03rd June 2011
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Solar, wind and geothermal energy sources are alike in two important ways. Using them does not deplete our planet's resources, and they are all non-polluting. The difference between them lies in their hit on the environment and cost effectiveness.

The wind is a byproduct of sunlight. Because of irregular terrain, water, vegetation, and the sun's uneven warming of Earth, air currents are created. These breezes spin a wind turbine's propeller creating kinetic energy. This can fuel machines, such as grinders, or be converted into electricity that powers our homes and businesses.

Though it generates no pollution, wind power leaves an imprint on the environment. Birds and bats fly into rotating turbine blades unawares, resulting in their unnatural death. The location of turbines is also a consideration because some areas of Earth are windier than others. This effects the power generated by air gusts over time, impacting the bottom line.

Solar panels on homes and businesses are more and more commonplace. The sun's rays are absorbed by structures called collectors. They can provide direct energy, or it is converted into other useful types of power. For example, flat-plate collectors absorb the sun's heat directly into a liquid, usually water. Photovoltaic cells are capable of changing sunlight immediately into electricity.


Sunlight technology is environmentally friendly although production of the collectors and storage units can pollute. Equipment is also expensive to produce making the electricity generated cost more than when using fossil fuels. Another drawback of solar power is that it operates only during the day. When daylight shortens in colder climates, even less power is generated over time.

The Earth's core is extremely hot. Temperatures there can reach above 9,000 degrees F. This heat flows outward and warms the planet's rock layer, or mantle. Most of the heated rock, called magma, remains underground. The force collected there (a geothermal reservoir) can be harvested as steam or hot water from the underground via direct-use systems, deep reservoirs to generate electricity, and geothermal heat pumps. Emissions and environmental imprint are minimal. The supply of geothermal dynamism is reliable and always available, increasing efficiency.

Harnessing, harvesting, and transporting the energy from renewable energies is not free, though the source is. To choose a suitable power source not only environmental concerns, but cost effectiveness and efficacy of location, must be evaluated.



It's time to supercharge your energy effectiveness and cut costs by using the remarkable green energy supply of geothermal! Geo-Hydro Supply is the leading geothermal supply company. They provide the non pressurized flow center necessary to set up a geothermal power system in your place. Make the right decision and secure geothermal energy for your residence right now!




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