Located just feet below the Earth’s surface is a renewable and consistent source of heat known as geothermal energy. At a depth of approximately six feet, for example, soil temperature in most of the world’s regions is stable between 45 – 58 degrees Fahrenheit. Johnson Controls offers geothermal energy solutions that allow you to tap into this natural energy source for use in heating and cooling systems.

With geothermal systems, there is often no need for traditional mechanical heating or cooling. Instead, ground-source heat pumps take advantage of the earth’s natural heating or cooling through a series of pipes, called loops, installed below ground or submersed in a pond or lake. Fluid in the loop is pumped into the building, where it is compressed by a heat exchanger and released at a higher temperature. In summer this process is reversed, removing heat from the building to cool the facility.

Unlike conventional heat pumps, it is much easier for the geothermal heat pump system to capture heat from soil of a moderate temperature than from the frigid air outside in winter. Conversely, in summer, the relatively cool ground absorbs waste heat more readily than warm outdoor air.

In some areas of the country, water below the surface of the ground is hot. This hot water can be used to provide direct heating and it can be used to create steam to run turbines to create electricity. Whatever the situation, we work with you to find the best solutions to your energy needs.

Geothermal Facts:

Geothermal energy has been identified as the most energy-efficient and cost-effective space conditioning available today by the Environmental Protection Agency.

Cost saving benefits:
Competitive installation costs
Lower energy costs by 25-40%
Utility incentives/rebates
Free domestic hot water in summer
Lower maintenance costs
Environmental benefits:
Fewer emissions (little or no fuel burned)
Requires less electricity
No danger of groundwater contamination
Reduced use of refrigerants

To read a more in-depth review of this technology, visit the NREL website:

Did You Know?

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