This shows the size of the generator. It's runs on propane and generates 8kW of electricity - enough to light 80 100 watt lightbulbs. It can't power the entire house, but we'll have it back up all the important circuits: heat, well pump, fridge, microwave, and a selection of lights for safety and convenience. This are seems to lose power for about 5 days per winter, so the generator will allow us to stay in the house during extended outages.