Put down the calculator! Sizing an essential circuit standby generator is extremely easy. Simply input the number and size of the essential circuits you want to power during an outage.
Our interactive sizing wizard will calculate the rest. If your circuits don’t exactly match, your electrician can always swap larger circuits with smaller circuits, but not vice versa.
This calculator is intended for estimating purposes only. Actual power requirements of high demand appliances vary widely by brand, model and capacity. Always have a qualified electrician analyze your specific requirements before making a purchase decision.