Tick the appliances you want to keep running and get a planning size in kW, with starting surges included.
These tools give planning-level estimates from typical values. They are not quotes, designs or engineering advice, and results depend on your actual home, equipment and local conditions. We confirm everything with a free on-site assessment.
Pick the air conditioning, heating, range and water heater types that match your house.
Choose the appliances and circuits that must run during an outage.
The calculator adds running loads and accounts for the biggest motor start.
You get a kW range, which air-cooled and liquid-cooled classes fit and an optional load-management note.
No. It uses typical appliance values for planning. We confirm your real loads with nameplates and a site visit.
Air conditioners need a large surge to start, and they are often the biggest load.
Send it to us with the form in the tool and we will keep it with your estimate.
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