The use of geothermal energy as a renewable energy source has greatly increased in the last few years. Geothermal systems harness the green energy of the earth, using small amount of electricity. Not only are these systems high in efficiency, but they also facilitate low electricity bills. By providing geothermal systems in residences, a substantial saving on electricity bills can be facilitated. One such innovative system has been introduced by a company called Earthlinked Technologies. The Earthlinked system, as the system is called, uses the stable underground temperature of the earth to heat the home in winter or lower the interior temperature in summers.
The Concept behind Geothermal Systems
No matter what part of the earth it is, equator or poles, the underground temperature of the earth remains the same throughout the year. The Geothermal systems utilize this temperature of the earth to produce green energy.
If it is winter, the underground heat is used by the system to evaporate a refrigerant which is then made to pass through a compressor for an increase in temperature and pressure. The hot refrigerant transfers the heat to the cold air inside the home through the fan coil. The refrigerant gives up heat and gets converted to liquid, which is then again sent to the ground to get heated. In this way the internal temperature is maintained in winters. In summers, the process is reversed.
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