This system is net positive by more than 3,000 kWh/yr. This is thanks to a large ground mounted, grid tied, solar photovoltaic (PV) array coupled with and open loop geo-exchange heating and cooling system. These systems provide more than 12 Mega Watt Hours of electricity of a year and only use 9. The surplus is sold back to the utility.
The open loop geo-exchange system uses clean fresh water as the energy source, extracts usable heat and returns it to the environment. The PV system uses sunlight as the energy source, what could be more sustainable renewable than harvesting energy from your environment?
It is exhilarating to produce more energy than you consume and leaves system owners with a sense of independence when producing their own energy as well as some of their neighbours!