If your home is 2500 square feet or less, you'll need a 20 kW generator to meet your needs. This type of generator is capable of powering most household receptacles, lights, and a central air conditioner of up to 5 tons. If you have gas heating and hot water, it's even better. A 9000-watt generator can run a house, but you'll need an additional 1000 watts of energy storage to cover cloudy days or when the power grid goes down. It's always better to have a generator that's a bit bigger than one that's too small.
This is because conventional heavy-duty generators tend to suffer from greater total harmonic distortion (THD). Standby mode is also known as a “home backup” generator or whole-house generator because it provides power to the entire house when the electricity is cut off. The size of a generator is determined by the type and quality of the circuits, as well as the appliances you plan to use. An average-sized standby home generator has a power that ranges from 5000 to 15,000 watts and can generally run for up to 24 hours on a gas tank before it needs to be refueled, depending on the type you buy (diesel or gasoline).Portable generators are designed to power a particular computer or group of appliances, so they cannot be used as the only source of energy in a home. They can quickly provide the power your home needs in the event of a typical power grid interruption, either through automatic generator transfer switches or manual generator transfer switches.
Main generators can also come into play if you intend to use them for extended periods without power. If your home has an air conditioning unit, you'll need to calculate what size generator is right for the amount of energy it consumes and the number of hours per day you want it to run (generators have maximum load limits). To do this, you'll need to know the wattage of your air conditioner and how many hours per day you plan on running it. In conclusion, if your home is 2500 square feet or less, a 20 kW generator should meet your needs. However, if you plan on running all of your appliances simultaneously during peak hours, adding an additional 1000 watts of energy storage would be a good idea. It's always better to have a generator that's a little too big than one that's too small.