The size of the generator needed to run a house depends on the power needs of the house. Some homes may require more power usage and appliances during a power outage, while others may only need a few running. To determine the best generator size for home use, you should refer to the list of appliances and systems you want to power and select the wattage needed for each. Once you have those, add the numbers together to figure out what size generator would be right for you.

According to various sources, a generator that can provide between 5,000 and 8,000 watts would be enough to power a typical house. With this generator size, homeowners can expect to power essential appliances such as the air conditioner, sump pump, refrigerator, laptop, TV, and light bulbs. However, the size of the generator needed for a house depends on the daily energy usage of the house and the backup power requirements, but between 10,000 and 15,000 watts is usually sufficient for most homes.

It is important to note that getting the right size backup power generator is crucial in ensuring your power needs are met during an outage. Choosing a generator that is too small can result in power failure and damage to the unit. On the other hand, a generator that is too big can be wasteful and not cost-effective.