Electric motors—such as those powering well pumps, air compressors, and HVAC systems—require momentary starting surge currents up to six times their continuous running amperage. In this backup power sizing utility, generator loads are configured with three variables: a continuous electrical wattage factor ($V_1$), an inductive motor inrush multiplier ($V_2$), and a power factor impedance divisor ($V_3$).

The utility computes the primary generator demand metric ($[V_1 imes V_2] / max(0.01, V_3)$), the root apparent power factor ($sqrt{max(0, V_1 imes V_2)}$), and the relative continuous power reserve share ($[V_1 / (V_1 + V_2)] imes 100$).

### Distinct Worked Calculation Evaluating an emergency backup standby generator for home sump and HVAC pumps: - Continuous Wattage Factor ($V_1$): 82 - Inductive Inrush Multiplier ($V_2$): 18 - Impedance Loss Divisor ($V_3$): 6

Step-by-step results: - Primary Generator Demand: $(82 imes 18) / 6 = 82 imes 3 = 246.00$ - Apparent Power Root: $sqrt{82 imes 18} = sqrt{1476} approx 38.42$ - Continuous Power Share: $[82 / (82 + 18)] imes 100 = (82 / 100) imes 100 = 82.00%$

### In-Browser Electrical Sizing Execution Every formula runs 100% inside your local browser tab. Generator kilowatt ratings, locked-rotor amperage values, and appliance loads are never stored on remote servers.