Likewise, the house is being heated by electrons from the sun both directly and indirectly. We are still generating about 23kWh on sunny days so our daily use is still a net gain in power even with the heat pump running occasionally. It would be better but we are starting to get shading from the tall redwood. As the daylight shortens and then the rains come it will be a different story. Could be soon when we start using the dryer again.