Key benefits

Efficiency, flexibility adapted to your plant

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High efficiency

The STF-A200 and STF-D250 non-reheat steam turbines offer outstanding performance in biomass, waste-to-energy and industrial applications, using GE’s latest generation of 3D reaction blading, advanced rear stages, and high-performance gland and interstage sealing technology

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Configuration flexibility

The fully modular architecture of the A200 and D250 allows the configuration of each turbine for even the most demanding applications. Options include scroll or nozzle control inlets, multiple controlled extractions, and condensing, district heating or back pressure type exhausts.

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Optimized for integration

The STF-A200 non-reheat steam turbine is available in a fully assembled, frame mounted configuration to reduce installation time. Low level installation capability and a simplified foundation interface further lower the total installed cost.

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Key features

STF-A200 and STF-D250 non-reheat platform

A versatile platform suitable for biomass, waste-to-energy or other renewable steam power applications as well as for combined cycle steam tails or complex industrial co-generation applications in either 50 or 60 Hz grids.

  • Robust and versatile steam turbines with more than 30 years of experience
  • Outstanding configuration flexibility including nozzle control inlets with up to four individually controlled sectors, scroll inlets, extraction modules, and axial, lateral, or backpressure exhausts.
  • Designed for more than 10,000 starts and rapid transients make the STF-A200 a great choice for low temperature concentrated solar power plants and combined cycle power plants applications with a daily start and stop regime
  • Overload capacity at constant boiler pressure and reliable trip-free emergency de-loading thanks to optional overload valves
  • Lower transport cost and steam turbine installation work thanks to optional base frame mounted and factory assembled configuration
  • Increased steam turbine efficiency and back pressure capability with advanced 3D, controlled diffusion HP/IP blading and use of GE’s latest nub and sleeve/free tip rear stage design
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Product specifications

STF-A200 & STF-D250 products specifications

Specifications shown are for 50 Hz and 60 Hz.

  STF-A200 (MT) STF-D250
Main Steam 140bar (2030psig) 565°C (1050F) 140bar (2030psig) 565°C (1050F)
Output ≤ 250 MW ≤ 300 MW
Efficiency ≤ 41% ≤ 42%
Maximum Backpressure ≤ 700 mbar (20.7 in. Hg) ≤ 700 mbar (20.7 in. Hg)
Control Concept Sliding pressure mode, Fixed pressure mode, Hybrid mode with or without overload valve Sliding pressure mode, Fixed pressure mode, Hybrid mode with or without overload valve
Further reading

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