Aeroderivative gas turbine Industrial 501-K Industrial 501-KB5S Power output: 4.0 MW(e) Gross efficiency: 30.6% Heat rate: 11,780 kJ/kWh (11,165 btu/kWh) Turbine speed: 14,200 rpm Pressure ratio: 10.2:1 Exhaust mass flow: 15.4 kg/s (34.0 lb/s) Exhaust temperature: 560°C (1,040°F) Industrial 501-KB7S Power output: 5.4 MW(e) Gross efficiency: 33.1% Heat rate: 10,865 kJ/kWh (10,298 btu/kWh) Turbine speed: 14,600 rpm Pressure ratio: 13.8:1 Exhaust mass flow: 21.3 (47.0 lb/s) Exhaust temperature: 494°C (921°F) Industrial 501-KH5 Power output: 6.6 MW(e) Gross efficiency: 42.1% Heat rate: 8,549 kJ/kWh (8,103 btu/kWh) Turbine speed: 14,600 rpm Pressure ratio: 10.2:1 Exhaust mass flow: 18.4 kg/s (40.6 lb/s) Exhaust temperature: 530°C (986°F) siemens.com / gasturbines 501 is a trade mark of and used under license of Rolls-Royce plc. PGDG-Y10022-00-7600 Power generation 4.0–6.6 MW(e)