Modernization and Upgrades for Industrial Steam Turbines

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Steam turbine service, young woman inspecting the control cabinet

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Footprint solutions

A “footprint” turbine is a replacement turbine which does not require any significant modifications to be made to the existing base frame or foundation. The existing oil system, gearbox and driven machine (generator, compressor, etc.) can also continue to be used with no, or only minor modifications. If necessary, they can be adapted to the new operating parameters. The ideal solution when the current turbine is technically unmodifiable, the casing or steam admission components are at end-of-life or when continuous operation under design conditions is no longer possible.

industrial steam turbine revamp solution

	Footprint solution	Turbine revamp
Characterization	Drop-in replacement turbine with minimal modifications	Replace steam path while retaining casing and structure
When to use	Required modifications cannot be realized with existing casing or casing is at end -of-life / seriously damaged	Performance optimization needed with reusable casing
Installation time	Typically within standard major outage possible	Typically during standard major outage possible
Advantages	Lower initial cost	Higher performance ROI
Flexibility	More adaptable to new performance goals	Limited to existing layout

Steam turbines in Waste-to-Energy plants: Modernizations and upgrades for reliable, efficient power generation

Siemens Energy offers tailored modernization and upgrade services for steam turbines in waste-to-energy (WtE) plants, helping operators to improve efficiency, availability, and long-term performance. With more than 200 Siemens Energy steam turbines in operation across 32 countries, delivering a combined electrical output of 3,921 MW, we bring extensive global experience to this sector.

Our steam turbines are most often installed in WtE plants in countries such as Germany, Switzerland, and the United Kingdom, where advanced waste management and energy recovery solutions are widely established. Proven turbine models such as the SST-300, SST-400, and SST-600 are among the most frequently deployed in these applications, offering flexibility and reliability for varying plant configurations.

Through targeted upgrades, digitalization, and lifecycle services, Siemens Energy supports WtE operators in maximizing plant efficiency, reducing downtime, and ensuring compliance with evolving environmental and operational requirements.