Geothermal Energy A Smart Source For Homes

Geothermal Energy A Smart Source For Homes

It is possible to cool and heat a home with geothermal power. This energy source produces no greenhouses gases and is available in virtually limitless amounts unlike fossil fuels. A well designed system will be economically competitive with other kinds of power and operate efficiently. It can be employed almost anywhere from arctic latitudes to down on the equator.

People in the field like to say they don't need to make heat, just move it. If you dig down eight feet or so anywhere on the planet, the earth will be in the fifty degree range. Whether the weather is a hundred degrees outside where you are now or if it is closer to zero, you can realize that the temperature just a few feet down isn't far from what is considered ideal.

Nothing additional ever has to be used for cooling. Earth temperatures in themselves are sufficient for that. Some situations may call for a bit of extra heating. Geothermal will bring a house up into the fifty degree range. Wind and solar power only operate part of the time and their output will vary. Geothermal power is constant and always available.

There are three parts to most home geothermal systems: a ground loop, a heat pump, and a heat distributor. For the ground loop, plastic piping is buried in the ground. A mix of anti-freeze and water and water flows through the pipes and back to the heat pump which removes the warmth and transfers it to the distribution system generally either forced air or radiant heating.

The system is reversed for cooling in warmer months. Heat in the air of a home is transferred to the liquid inside the piping and dissipates into the ground. The system works in connection with a forced air device that uses air coils in the same manner that air conditioners make use of evaporator coils.

Such devices can be most easily installed when a home is under construction. In existing structures, some custom design work may be needed if the amount of yard space is limited in order to accommodate the ground loop. These systems require limited amounts of maintenance and tend to be durable. Earthquakes can wreak havoc with ground loops.

Geothermal power is a renewable form of energy that is free of pollution. A system based on its use can save 70% on heating bills, 50% on cooling costs, and a third on hot water heating. For these reasons, there is growing interest in making use of what lies at our feet.

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