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Largest Geothermal System will Heat and Cool Louisville Airport

The Louisville Muhammad Ali International Airport (SDF) celebrated the beginning of its $21.7 million geothermal system project that will save energy by using the Earth's natural temperature to heat and cool the facility.Vertical geothermal wells will be drilled 500 feet into the ground on the east side of the airport. The 648 wells will use the natural temperature of the earth to keep the terminal cool in the summer and warm in the winter. According to the airport, the system will cut carbon emissions by 80% by reducing pollutants like ozone and carbon monoxide, while using 40% less energy than traditional HVAC systems. The geothermal system requires less maintenance and has an operating lifespan of two to three times an average system."Not only will this innovative technology make system-wide improvements and increase efficiencies, but we are also setting an example in the industry to reduce carbon emissions and energy use," said Dan Mann, Executive Director of the Louisville Regional Airport Authority.Upon completion of the geothermal system, the wellfield will be used to support improvements to the airfield's infrastructure, both of which are expected to be completed in the Fall of 2022. These improvements include additional terminal ramp space, just in time for the hundreds of private and charter aircraft to stop into Louisville for the Kentucky Derby.
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