Energy Cost Calculator Compressor Energy Cost Calculator Energy Cost Calculator Estimate the annual electrical cost to operate an air or gas compressor. Motor Rating (HP) Motor Rating (kW) 1. Motor Specifications Motor Power (HP) HP Motor Efficiency % NEMA Premium typically 92% - 96% Average Load Factor % Avg % of full load the compressor draws. 2. Operational Data Electricity Rate $ / kWh Annual Operating Hours Custom 1 Shift (2,000 hrs) 2 Shifts (4,000 hrs) 3 Shifts (6,000 hrs) 24/7 (8,760 hrs) Calculate Annual Cost Estimated Annual Energy Cost $0.00 Annual Energy Consumption 0 kWh True Input Power (Loaded) 0.0 kW