Learn about Geothermal

How it works, how it saves the planet and lowers your heating & cooling bills.


Find a Professional

A simple way to find the best geothermal expert in your area.


Support the Association

Join, become a Master Geothermal Installer or Sponsor the WGA.


Upcoming Events

  • August 24, 2026 11:00 AM The Oaks Golf Course (4740 Pierceville Rd | Cottage Grove, WI 53527)


Our Mission

Our Members

The mission of the Wisconsin Geothermal Association is to responsibly advance the understanding and use of geothermal ground source heat pumps for commercial and residential applications (heating and cooling) in Wisconsin. We do that by providing fact-based support and information
for installation opportunities in our state. 

We represent and engage with Engineers, Electricians, HVACR Contractors, Vertical and Horizontal Loop Field Installers, Architects, Plumbers, Electric Utilities and Co-ops,  Manufacturers, Distributors, Technicians, and Clean Energy Solution Providers and Innovators. 

Working together, we encourage cross-profession learning, ideation, communication, and encourage new innovations and applications of geothermal technology.


Our Geothermal Customer

Did You Know?

  • Those who desire the absolute best performance, convenience and long-lasting reliability that modern technology can provide for their daily life.
  • Those who are willing to invest today so that future generations enjoy a clean and healthy planet.
  • Those who choose to minimize risks and maximize the time spent in healthy work and home comfort environments.
  • Those who choose to save money while understanding investments with long-lasting returns.
  • One of the largest geothermal installations in the world is in a medical records company in Verona, Wisconsin.
  • Fort McCoy, located in Sparta, Wisconsin is one of the first
    all-geothermal residential communities in North America.
  • The U.S. Environmental Protection Agency says, "Geothermal heat pumps are among the most efficient and comfortable heating and cooling technologies currently available."
  • The U.S. Environmental Protection Agency also says, "…qualified geothermal heat pumps are over 45% more energy efficient than standard options."



Wisconsin Geothermal Association

P.O. Box 833  |  Germantown, WI 53022-0833

(888) 782-6815  |   info@wisgeo.org


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