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Portfolio overview
Watch our short movie on the evolutionary HL-class advanced air-cooled gas turbine series based on the proven SGT-8000H class technology.

Siemens pushes its gas turbine technology for higher power plant efficiency

Siemens is developing the HL-class gas turbine series in an evolutionary development step derived from its proven SGT-8000H class technology. This series consist of three engines: SGT5-9000HL, SGT6-9000HL and SGT5-8000HL. The advanced Siemens HL-class gas turbines combine a series of new but already tested technologies and design features with the best of past experience clearing the way to efficiency levels beyond 63 percent with a mid-term goal to reach 65 percent.


Based on proven design and relying on our extensive fleet experience, we’re gathering speed in driving technological upgrades throughout our entire fleet with super-efficient cooling features, new materials or digital solutions to optimize output and lifecycle costs. 

Watch our short movie on selective laser melting and learn how the 3D printed components are fabricated and tested.

Advanced manufacturing technologies boost gas turbine innovation

Selective laser melting, SLM for short, is the industry’s leading additive manufacturing (AM) technology. It enables us to create highly complex geometries for higher efficiency and maximum flexibility. We achieved a breakthrough by finishing the first full-load engine tests for gas turbine blades entirely produced using AM technology.


SLM also helps to develop components “hot off the press” and to significantly shorten innovation cycles. Siemens now employs this 3D printing technology in series production of spare parts as well as for the repair of gas turbine components – in particular for burner components – to speed up the delivery of spare parts for you.

Watch our short movie on testing and validation to discover our test facilities and listen to statements from experts and customers from around the world.

Tested gas turbines you can count on

More than 6,900 Siemens gas turbines are operating successfully all over the world – adapted to specific surroundings, climate and power requirements. That’s because our gas turbines are thoroughly tested in our own test facilities to ensure they run smoothly even under the harshest conditions. Siemens’ gas turbine manufacturing plant in Berlin, Germany, boasts one of the most modern and innovative test facilities in the world.


Here, all our gas turbine types are tested down to every last detail. For special test runs, the test facility experts install sensors and measuring instruments to analyze up to 12,000 measuring points with all operational parameters, such as mass flow, temperatures, or vibrations.

Prototype testing speeds up the innovation cycle

At the Siemens Clean Energy Center close to Berlin (Germany), experts test every aspect of the combustion process of our gas turbines. Prototype components pass through a series of tests, pursuing the main goal of making gas turbines more efficient and flexible – while keeping up with the rapid pace of innovation in the energy market.