The Power of Yes

Can GE ensure the efficiency of my steam plant?

YES. For more than a century, we have engineered and manufactured the latest technologies to provide highly efficient and reliable steam turbines for fossil, nuclear and renewable applications. GE has supplied more than 30% of the world’s installed steam turbine capacity and 50% of the nuclear steam turbines, which are collectively generating more than 1200 GW of power.

Advanced technology

Pioneering steam turbine features that have become industry standards

GE’s steam turbine platform offers a broad product portfolio of solutions that accommodate a wide range of site conditions, operational needs, advanced steam cycles, and applications. Our steam turbines share common features and components that enhance the reliability, efficiency and availability of your plant.

Turbine ARABELLE 1750 mw

Steam turbine welded rotors

Introduced in 1930, our welded rotor technology has stood the test of time with no ruptures reported in our large diameter steam turbine rotors – manufactured by welding together separate smaller forgings. This beneficial design allows for:

  • Appropriate forging material selection, based on temperature level at each section of the steam turbine
  • Stress reduction during thermal transients for faster and more frequent load cycling capability
  • Better access for ultra-sonic testing equipment – resulting in higher reliability

Shrink ring design

  • Appropriate forging material selection, based on temperature level at each section of the steam turbine
  • Stress reduction during thermal transients for faster and more frequent load cycling capability
  • Better access for ultra-sonic testing equipment – resulting in higher reliability
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Advance blading on GE steam turbines

Innovative blading technology is apparent in our:

  • Modern, three-dimensional profile design that results in higher steam power efficiency
  • High pressure (HP), intermediate pressure (IP), and low pressure (LP) front stage blades that are milled from a single forging for excellent mechanical integrity and higher reliability
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Low pressure module large last stage blades

Our enhanced last stage blade portfolio for steam turbines offers:

  • Dense staggered last stage blade sizes for project specific cold-end conditions and increased steam turbine efficiency
  • A robust design with stress-enhanced grooves and blade attachments for higher turbine reliability
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Single bearing design

Our multi-casing steam turbines have a single bearing between each turbine section for:

  • Avoidance of load shifting for higher reliability
  • Efficient shaft alignment for reduced construction time
  • Shorter overall turbine shaft length for lower building costs
Products

Explore our steam turbine portfolio

Application
Steam parameters
(plive steam / tlive steam / treheat)
Output Range [MW]
Nuclear Steam
ARABELLE 1000
Nuclear reheat
Up to 75bar / 300°C
700 - 1200MW
1090psig / 570F

GE’s Arabelle turbine is the most powerful nuclear steam turbine in operation. Suiting all reactors type, from 700MW up to 1,900MW, the Arabelle is highly efficient, reliable, and cost effective.

Configuration:

arabelle-1000.svg
ARABELLE 1700
Nuclear reheat
Up to 75bar / 300°C
1200 - 1900MW
1090psig / 570F

GE’s Arabelle turbine is the most powerful nuclear steam turbine in operation. Suiting all reactors type, from 700MW up to 1,900MW, the Arabelle is highly efficient, reliable, and cost effective.

Configuration:

arabelle-1700.svg
STF-N700
Nuclear reheat
Up to 75bar / 300°C
500 - 800MW
1090psig / 570F

The STF N700 turbine offers robust architecture and cutting-edge blading technology adapted to any backpressure conditions.

Configuration:

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Renewable Steam
STF-G220 (GST)
Geothermal
Up to 16bar / 360°C
20 - 50MW
230psig / 680F

The STF-G220 (GST) geothermal steam turbine offers a simple and robust technology for geothermal projects and industrial low-pressure expander applications.

Configuration:

stf-g220.svg
STF-D250
Non-reheat
Up to 140bar / 565°C
100 - 300MW
2030psig / 1050F

The STF-D250 (MT) non-reheat steam turbines provide superior value in renewable and industrial applications

Configuration:

stf-d250.svg
STF-A650 (MT)
Reheat
Up to 190bar / 585°C / 585°C
100 - 300MW
2750psig / 1085F / 1085F

The STF-A650 (MT) steam turbine has proven their value in concentrated solar power, combined cycle and industrial applications.

Configuration:

stf-a650.svg
STF-A200 (MT)
Non-reheat
Up to 140bar / 565°C
50 - 250MW
2030psig / 1050F

The STF-A200 non-reheat steam turbine provides superior value in renewable and industrial applications, by combining a modern steam path with the flexibility of a fully modular turbine architecture

Configuration:

stf-a200.svg
STF-D650
Reheat
Up to 190bar / 585°C / 585°C
200 - 700MW
2750psig / 1085F / 1085F

The STF-D650 reheat steam turbines have proven their value in concentrated solar power, combined cycle and industrial applications.

Configuration:

stf-d650.svg
STF-A100 (GRT)
Non-reheat
Up to 140bar / 565°C
20 - 135MW
2030psig / 1050F

The high speed STF-A100 (GRT/HRT) non-reheat steam turbine family provides up to 135MW of low cost and flexible power for renewable steam plants like biomass, concentrated solar power, waste to energy, and industrial applications.

Configuration:

stf-a100.svg
Fossil Steam
STF-D1050
Reheat, USC
Up to 300bar / 600C / 620°C
200 - 1200MW
4350psig / 1112F / 1148F

The STF-D1050 steam turbine family expands the range of ultra-supercritical (USC) steam turbines all the way from 150MW to over 1200MW

Configuration:

stf-d1050.svg
STF-D2250
Double reheat, adv. USC
Up to 330bar / 620°C / 630°C
600 - 1200MW
4786 psig / 1148F / 1166F

Designed for advanced ultra-supercritical (A USC) steam cycles, the STF-D2250 steam turbine pushes your plant efficiency to new levels

Configuration:

stf-d2250.svg
STF-A850
Reheat, supercritical
Up to 245bar / 585°C / 585°C
150 - 300MW
3550psig / 1085F / 1085F

The STF-A850 supercritical reheat steam turbine family addresses the needs for flexible and highly performant supercritical steam for mid-size plant applications

Configuration:

stf-a850.svg
STF-A1050
Reheat, USC
Up to 300bar / 600°C / 600°C
150 - 300MW
4350psig / 1112F / 1112F

The STF-A1050 steam turbine family expands the range of ultra-supercritical (USC) steam turbines all the way from 150MW to over 1200MW.

Configuration:

stf-a1050.svg
STF-D250
Non-reheat
Up to 140bar / 565°C
100 - 300MW
2030psig / 1050F

The STF-D250 (MT) non-reheat steam turbines provide superior value in renewable and industrial applications

Configuration:

stf-d250.svg
STF-D850
Reheat, supercritical
Up to 245bar / 585°C / 585°C
200 - 1000MW
3550psig / 1085F / 1085F

The STF-D850 supercritical reheat steam turbine family addresses the needs for flexible and highly performant supercritical steam for mid-size plant applications

Configuration:

stf-d850.svg
STF-A650 (MT)
Reheat
Up to 190bar / 585°C / 585°C
100 - 300MW
2750psig / 1085F / 1085F

The STF-A650 (MT) steam turbine has proven their value in concentrated solar power, combined cycle and industrial applications.

Configuration:

stf-a650.svg
STF-A200 (MT)
Non-reheat
Up to 140bar / 565°C
50 - 250MW
2030psig / 1050F

The STF-A200 non-reheat steam turbine provides superior value in renewable and industrial applications, by combining a modern steam path with the flexibility of a fully modular turbine architecture

Configuration:

stf-a200.svg
STF-D1250
Reheat, adv. USC
Up to 330bar / 650°C / 670°C
400 - 1200MW
4786 psig / 1202F / 1238F

Designed for advanced ultra-supercritical (A USC) steam cycles, the STF-D1250 steam turbine pushes your plant efficiency to new levels

Configuration:

stf-d1250.svg
STF-D650
Reheat
Up to 190bar / 585°C / 585°C
200 - 700MW
2750psig / 1085F / 1085F

The STF-D650 reheat steam turbines have proven their value in concentrated solar power, combined cycle and industrial applications.

Configuration:

stf-d650.svg
STF-A100 (GRT)
Non-reheat
Up to 140bar / 565°C
20 - 135MW
2030psig / 1050F

The high speed STF-A100 (GRT/HRT) non-reheat steam turbine family provides up to 135MW of low cost and flexible power for renewable steam plants like biomass, concentrated solar power, waste to energy, and industrial applications.

Configuration:

stf-a100.svg