The geothermal field is located in a 7-acre lot between the runway and the terminal. In this lot, 648 wells were drilled, each to a depth of about 500 feet (~152 meters). “We had a series of 3-5 drill rigs here all at the same time drilling for months,” said Brian Simwell.
After the wells were dug, they were capped, grouted, and filled with sand and gravel. They were then finished with 17 inches of concrete and asphalt to make the geothermal field level with the rest of the airfield. The space can then be used as future parking for aircraft.
The system will provide low-emissions heating and cooling for the airport, taking advantage of the constant subsurface temperature during both summer or winter. “Beyond the overall innovation of this project, it further confirms our commitment to providing best-in-class facilities for our passengers, while also being an industry leader in reducing carbon emissions and saving energy,” said Dan Mann, Executive Director of the Louisville Regional Airport Authority.
