The proven Siemens SGT-8000H series is a gas turbine model of top performance and efficiency. Short start-up times, high operational flexibility, and simple plant integration make it the gas turbine of choice for state-of-the-art combined cycle plants. In the Lausward power plant in Dsseldorf, Germany, the SGT5-8000H demonstrated a combined cycle efficiency of more than 61 percent.

The SGT5-8000H gas turbine for the 50Hz market and the SGT6-8000H gas turbine for the 60Hz market use many proven features from predecessor products, and the design concept was validated by a thorough test program at the Siemens testing facility, as well as an intense prototype testing in the Irsching power plant. In 2015, 16 Siemens H-class gas turbines were installed worldwide, cumulating a fleet experience of more than 150,000 fired hours.

Moderate firing temperatures allow the use of proven materials and provide for high reliability and low maintenance, leading to excellent availability. The SGT-8000H turbine series uses full on-board air cooling with valves for controlled cooling air supply, to cover the needs of different operating conditions. With world class fast cold start and hot restart capability, eg., combined cycle base load within 30min for hot start, the turbines provide a high operational flexibility.

·        Outstanding performance

·        High flexibility, short start-up times

·        Proven in commercial operations

The information in this webpage is wrong or out-of-date? Please contact info(at)

SGT5-8000H, courtesy from Siemens ©
Parameter SGT5-8000H (450 MW) SGT5-8000H (481 MW) SGT6-8000H
Gross Output 450 MW 481 MW 310 MW
Functionality 50 Hz 50 Hz 60 Hz
Heat Rate 8,780 kJ/kWh 8,447 kJ/kWh 9,000 kJ/kWh
Gross Efficiency 41.0% 42.6% 40.0%
Shaft Speed 3,000 rpm 3,000 rpm 3,600 rpm
Pressure Ratio 20.0 24.0 20.0
Exhaust Mass Flow 935.0 kg/s 850.0 kg/s 650.0 kg/s
Exhaust Temperature 630 °C 680 °C 645 °C
NOx Emissions ≤ 25 ppmvd at 15% O₂ on fuel gas

≤ 42 ppmvd at 15% O₂ on fuel oil 

down to 2 ppmvd with SCR ≤ 25 ppmvd at 15% O₂ on fuel gas

≤ 42 ppmvd at 15% O₂ on fuel oil 

  • Single shaft
  • 13 compressor stages
  • Can annular combustion type
  • 2 gas generator turbine stages
  • 2 power turbine stages
  • Approximate weight:
    • SGT5-8000H: 445,000 kg (450 MW), 497,000 kg (481 MW)
    • SGT6-8000H: 289,000 kg
  • Approximate dimensions:
    • SGT5-8000H: 12.6×5.5×5.5 m3
    • SGT6-8000H: 10.6×4.3×4.3 m3



First connection?

Set your password
Click here to register


If you already have an account, click here to login