The SGT5-4000F, a typical F-class gas turbine, leverages more than 40 years of experience at Siemens and Siemens Westinghouse in the design and construction of heavy-duty gas turbines. Initially rolled out in 1997 and still in service today, the SGT5-4000F provides us with a solid technical foundation on which we’re developing innovative technologies to meet the needs of tomorrow’s energy market.

We’ve sold close to 290 F-class gas turbines which, together, have run up more than 3.6 million operating hours, and with a fleet reliability track record of more than 99 percent, they offer users the kind of predictable performance that they can build on.

The SGT-8000H, our new H-class generation of gas turbine and currently the largest in the world, has been installed in the combined cycle power plant in Irsching, Germany (see our combined cycle power plants). The turbine is 13 meters long, five meters high and weighs 440 metric tons. For all its size, though, its most important features are its low fuel consumption (thanks to its higher efficiency of 59.5 percent) and lower emissions compared to the previous record-holder, installed in the Mainz-Wiesbaden power plant.

Our new gas turbines are setting the benchmark for efficiency and environmental performance. With their improved energy efficiency, they require less fuel per generated kilowatt hour and have lower carbon dioxide and nitrogen oxide emissions. Compared to power plants with earlier gas turbine technology and the same capacity, plants equipped with our new turbines are 40 percent efficient – an improvement of 2 percentage points – and produce 10,950 metric tons less carbon dioxide a year.