Electrical

Estimate RV solar array watts, panel count, and battery-bank amp-hours from daily energy use, sun hours, and backup days.

Estimate subpanel feeder breaker size, panel rating, spare room, and optional main service headroom from planned loads.

Estimate residential panel load, spare amps, and the largest added running load that may fit using a NEC-style dwelling method.

Estimate motor running amps from horsepower, voltage, motor type, efficiency, and AC power factor.

Estimate motor starting amps from FLA or NEMA code, with low, middle, high range and optional current limit check.

Estimate motor full-load amps from hp or kW, voltage, phase, efficiency, and power factor, with optional nameplate comparison.

Estimate monthly, daily, and annual dehumidifier electricity cost from watts, measured kWh, or annual energy use.

Estimate electric dryer cost per load, month, and year using your dryer energy use, weekly loads, and electricity price.

Estimate fridge electricity cost from EnergyGuide kWh, a meter reading, or average watts, with optional replacement savings.

Estimate pool pump electricity cost from watts, run time, electric rate, and run days, with an optional second speed setting.