ENERGY CONSERVATION 25-35% of the load energy is consumed during idle run without producing air.Energy Usage Calculator Enter Your Data to Find Your Cost Enter Horsepower: Enter Motor Efficiency: % Enter Hours of Operation: Enter Cost Per kW Hour: Approximate BHP: 0 BHP Energy Used Per Year: 0 kWh Energy Cost Per Year $ 0 Please note: Calculations are an approximation, actual results will vary with site conditions and control type.