Geothermal utilizes the energy stored in the earth's surface. The earth acts as an excellent medium to provide both heating and cooling as the temperature above the surface varies compared to the temperature below. Geothermal systems take advantage of this difference by pulling the stored heat in the winter and cooling air through the earth in the summer for use in homes and businesses.

Listed below are various fact sheets and other information sources on the use of geothermal energy.

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Fact Sheets (Acrobat Reader Required)

Geothermal heat pumps for Wisconsin homes, businesses and schools
     Geothermal Heat Pumps for Wisconsin Homes Businesses and Schools

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Case Studies (Acrobat Reader Required)

Fond du Lac High School installs a geothermal system.
     Fond du Lac High School

Milwaukee library uses geothermal energy for heating and cooling.
      Washington Park Library Geotermal Heat Pump System

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Presentations (Acrobat Reader Required)

Ground-source and geothermal heat pumps
     Ground-source Heat Pump Presentation

Ritger Law Office Case Study
     Clean Energy is Good for Business: Ritger