You can run a house on a solar generator, but it needs enough power. It also depends on how long you plan to power the house because if it is a backup vs. the primary power source, that will impact the type of solar system you need. A generator ranging from 5000 to 7500 watts is enough to power a house pending what is being powered and for how long. The best way to know the size of the solar generator you need to power your house, look at the wattage of all the appliances you plan to run. The watts or amps are often listed on product labels. To keep these charged via solar, you'll also need 25-35 solar panels (100-300 watt panels).