My landlord is mostly responsible for making our home very energy efficient. We have a hybrid solar water heater, gas stove and gas dryer. We occasionally use the electric switch on the water heater on cloudy days. We do not have A/C.
Landlord's space is 1200 sq. feet. The mother in law suite that we live in is 350 sq. ft. We also have a 2 car garage with laundry facilities and lights.
He showed me the bills from the last 6 months and we average 250 KWH in the summer (8 months) and 350 KWH in the winter (4 months). We have to use the electricity on the water heater a little more in the winter. A 12 month average is around 285 KWH.