Geothermal energy has been used to heat and air condition buildings for several decades, and during that time, these geothermal systems have been called many different things. Some of the more popular variations include geo-thermal, geo-exchange, ground-water, ground-water assisted, ground-water-source, and water-to-water.

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All of these terms, though, convey the same thought: use of geothermal heat pump technology to tap the energy in the earth’s surface and drive a heating and air conditioning system for both residential and commercial uses. The result is a green or natural heat pump that saves energy and benefits the environment.

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A geothermal heat pump is the greenest way to go. Learn the facts about geothermal energy:

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• An EPA study of energy efficiency concluded geothermal energy is the most environmentally friendly heating/cooling system.

• The United States National Renewable Energy Laboratory concluded that geothermal energy is more efficient and cost-effective compared with conventional residential systems.

• Available everywhere in the United States, geothermal energy can be found underground virtually anywhere.

• Geothermal cost savings can be increased by geothermal energy incentives, available from federal, state, local, and utility sources.

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Energy and cost savings of geothermal heat pumps will vary by region and type of conventional system they’re compared with. But the energy cost of geothermal versus conventional HVAC systems will always be lower – and the geothermal system will always be greener.