According to data supplied by the U.S. Department of Energy (DOE) Office of Geothermal Technologies, nearly 40% of all U.S. emissions of carbon dioxide (CO2) are the result of using energy to heat, cool and provide hot water for buildings. This is about the same amount of CO2 contributed by the transportation sector. Versus a conventional fossil fuel system, a standard 3-ton residential geothermal system produces approximately one less pound of carbon dioxide (CO2) for every hour of use. Over twenty years, the carbon footprint reduction would be equivalent to planting 120,000 acres of trees or converting over 58,000 cars to zero emission vehicles.
Taking advantage of the “hot water assist” option, lowers emissions even further by allocating heat removed from the home during the cooling season to provide hot water for household consumption. In addition to the environmental benefit, hot water costs can be reduced by as much as 30%.