Yes, HVAC systems can be used with geothermal energy. Geothermal energy is a renewable energy source that can be used to heat and cool buildings. Geothermal energy is generated by tapping into the Earth’s natural heat, which is stored in the ground. This energy can be used to heat and cool buildings by using a geothermal heat pump. The heat pump works by transferring heat from the ground into the building during the winter and transferring heat from the building into the ground during the summer. This process is more efficient than traditional HVAC systems, as it requires less energy to operate. Additionally, geothermal energy is a clean energy source, making it a great choice for those looking to reduce their carbon footprint.