Yes, if you can generate the required power. The magic number for powering an off-grid house is 300 watts of continuous power. This is the average power consumed. When stored in batteries, this is enough power for lights, fridge, freezer, washing machine and well pump. This would be for a family of four. This is 300 x 24 or 7200 watt hours per day or 7.2 kilowatt hours (kWh). If the house in question is on grid (mains) power, then the usage is typically three or four times the consumption of the off grid people.