A 20kW generator will run most house receptacles, lights, and up to a 5-ton central air conditioner. You have a second air conditioner and heating system for the upstairs, but this area of the home is not important to you while operating on generator power.

How many kW generator do I need to run a house?

You can run the most critical household equipment with a generator rated at 5,000 to 7,500 watts. These include things like a well pump, refrigerator and freezer, and lighting circuits. A generator with around 7500 running watts can run all these appliances at once. For RV, a 3000 – 4000-watt generator would be ideal.

What size generator does the average house need?

5000 to 7000 watts running at their highest levels of power consumption. An average size home requires from 5000 to 7000 watts to power essential items. provides you with the number of continuous or running watts your generator must supply. Step 2: Now select the largest number of starting watts assigned to the items you wish to use.

How many watts does a 4 bedroom house use?

For a 1 or 2 bedroom house, the average gas consumption is around 8,000kWh and the electricity consumption is around 2,000 kilowatts. For a 3 or 4-bedroom house, these figures add up to 3,100kWh of electricity and 12,500 kWh of gas.

How much power does a 4 bedroom house use?

According to the U.S. Energy Information Administration, the average U.S. residential customer uses over 10,000 kWh per year.