The wattage required to run a home varies, but most homes need between 5,000 and 10,000 watts to operate essential appliances simultaneously. What is normal house wattage? Normal house wattage is usually around 1,200 watts per hour for a typical household, depending on the number. The actual amount of electricity it takes to run your home depends on what appliances you run, how efficient those appliances are, and the size of your home. The best way to save on electricity is to go solar – register on the EnergySage Marketplace today to compare your solar options. How many. Average American homes use 30 kWh daily (1,250W continuous equivalent), but your actual needs depend on house size, climate, and lifestyle choices. Essential appliances like refrigerators, HVAC systems, and water heaters account for 60-70% of total home energy consumption. But really, it's just a matter of simple math. The answer is not one-size-fits-all—it depends on the size of your home, the appliances you use, and your overall. The first step in estimating how many watts to power a house is to identify your major energy-consuming appliances. Water Heater: Electric water.