GE 9E Gas Turbine: Combustion Retrofits and Upgrade Solutions

Complete 9E Aftermarket Solutions from PSM and Thomassen Energy

PSM and Thomassen Energy, sister companies within Hanwha Group, provide complete aftermarket support for the GE 9E (9171E)gas turbine platform. PSM engineers and manufactures the LEC III and LEC NextGen ultra-low-emission combustion systems, delivering sub-5 ppm NOx capability with drop-in compatibility for legacy GE combustion hardware. Thomassen Energy, based in Rheden, the Netherlands, manufactures 9E hot gas path components, provides rotor services, field services, and complete outage support. Together, they offer 9E operators across 50Hz power markets an independent alternative to OEM service with faster lead times, lower lifecycle costs, and no bundled service lock-in.

9E Platform and Performance Overview

• Increased efficiency: Reduce fuel consumption and operating costs by optimizing combustion dynamics and cooling.
• Higher Output: Enable increased power generation while preserving equipment integrity.
• Improved Reliability: Minimize the risk of forced outages and unplanned maintenance.
• Extended Equipment Life: Reduce the frequency of replacements while improving ROI.
• Environmental Compliance: Meet or exceed global emissions standards with NOx- and CO-limiting technologies.
• Custom Solutions: Tailor upgrades to your site-specific needs for optimal performance and flexibility.

9E Hot Gas Path Components

Thomassen Energy (TEN), PSM’s sister company within Hanwha Group, manufactures and supplies a complete range of 9E hot gas path components. All parts include installation hardware and diaphragms, are designed as OEM-equivalent replacements, and are set-wise compatible with older 9E model configurations. TEN also supports the latest 2085F configurations with advanced aero 3rd stage components.

Turbine Section Components:

1st Stage Nozzle

• Engineered to OEM-equivalent quality
• MCrAlY and thermal barrier coatings (TBC)

1st Stage Buckets

• Improved turbulated cooling holes for better thermal management
• MCrAlY & TBC Coatings available

2nd Stage Nozzle

• OEM-quality equivalent
• Ai-Sl coating

2nd Stage Buckets

• Scalloped tip shroud for improved creep resistance
• Welded Z-Notch hardface material to minimize wear

3rd Stage Nozzle

• OEM Advanced Aero-equivalent geometry
• Optional coatings available

3rd Stage Buckets

• Advanced Aero equivalent design
• Scalloped tip shroud for improved creep resistance
• Z-Notch welds for durability
• Coating: Optional

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LEC III™ and LEC NextGen: Ultra-Low-Emission Combustion for the 9E

LEC III
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PSM’s LEC III combustion system is a drop-in replacement for legacy GE combustion hardware on the 9Eplatform. Designed and manufactured at PSM’s Jupiter, Florida facility, LEC III delivers proven emissions performance with over 70 global installations across E-class and B-class turbine fleets.

Key capabilities:
•       Sub-5 ppm NOx on natural gas
•       Drop-in compatible with GE models 6581B, 7121EA, and 9171E
•       Maintains low emissions across wider load ranges than OEM combustion systems
•       Over 70 global installations
•       Reduced combustion dynamics risk through PSM-proprietary design 

‍LEC NextGen:

‍LEC NextGen is PSM’s next-generation combustion system, building on the proven LEC III platform with enhanced turndown capability and broader operational flexibility. LEC NextGen delivers sub-9 ppm NOx performance while expanding the operating envelope for dispatch flexibility in markets with increasing renewable penetration.

‍Key capabilities:
‍•       Sub-9 ppm NOx on natural gas
•       Enhanced turndown capability for flexible dispatch
•       Compatible with the same GE legacy combustion models as LEC III
•       Designed for installations where turndown range is prioritized alongside emissions compliance