I live on the east coast, paid for excellent insulation and thick windows with good seals, installed solar, and don't pay a dime more for energy. That includes

I live on the east coast, paid for excellent insulation and thick windows with good seals, installed solar, and don't pay a dime more for energy. That includes heating, cooling, hot water, and our two EVs. This is possible almost entirely because of the insulation. We were generating a surplus, so we installed an electric clothes dryer, which seems to have balanced everything nicely.