Alstom GT11 Repair Services & Turbine Restoration

Expert Restoration for Alstom GT11 Units

Allied Power Group delivers precision turbine repair and field service solutions tailored to the Alstom GT11. Whether your unit is facing wear from extended operation or requires critical component upgrades, our team restores performance, reliability, and efficiency—without the OEM lead times or cost. From combustion section repairs to full rotor overhauls, we bring decades of experience to every GT11 project.

Power Output

Up to 120 MW

Efficiency

Over 38% in combined cycle mode

Fuel Flexibility

Operates on both natural gas and diesel

Emissions

Features advanced technology for reduced NOx emissions

GT11 Repair & Service Capabilities

We offer a full suite of maintenance, repair, and overhaul (MRO) services for the Alstom GT11, addressing key operational components and failure modes. Our capabilities include rotor overhauls, blade repairs and coatings, combustion tuning, diaphragm and casing restoration, NDE and dimensional inspections, and life extension solutions—all supported both in the field and in our Houston-based shop.

Comprehensive Rotor Overhauls

GT11 rotor assemblies endure significant thermal and mechanical stress over time. Our team provides full rotor disassembly, inspection, and rebuilds to restore structural integrity and extend service life. Every overhaul is backed by precision measurements, material assessments, and OEM-equivalent reassembly standards.

Our rotor services include:

Complete disassembly and dimensional inspection
Journal restoration and balancing
Shaft repairs and straightening
Replacement of critical hardware
Rebuild and alignment to tight tolerances

Advanced Blade Repair & Coating Solutions

Blades are often the first to suffer from high-temperature fatigue, erosion, or FOD damage. We offer repair and recoating services for both rotating and stationary blades, ensuring peak efficiency and durability under extreme operating conditions.

Our blade capabilities include:

Crack detection and weld repair
Airfoil restoration and tip profiling
Application of thermal barrier and anti-corrosion coatings
Replacement sourcing or reverse engineering
Custom coating upgrades for extended life

Combustion System Maintenance & Tuning

The GT11’s combustion section requires careful management to maintain stable operation, emissions compliance, and performance output. We service and upgrade combustion components to improve reliability and reduce unplanned outages.

Combustion system support includes:

Inspection and tuning of burners and liners
Refurbishment or replacement of combustor hardware
Hot gas path component life assessments
OEM-equivalent or upgraded replacement parts
Customized emission control adjustments

Structural Repairs & Lifetime Extension

Our team addresses structural damage to casings, diaphragms, and other major components with engineered repair strategies. We also implement life extension programs that reduce capital expenditures while maintaining operational performance.

Structural and life extension solutions include:

Casing weld repairs and re-machining
Diaphragm restoration and re-blading
Non-destructive testing and metallurgical analysis
Life usage assessments and requalification
Refurbishment of obsolete or discontinued parts

Why Choose Allied Power Group for Alstom GT11 Maintenance and Repair

When it comes to Alstom GT11 maintenance and repair, Allied Power Group is a trusted partner for power plant operators seeking reliability, speed, and cost-efficiency. Our deep expertise with legacy Alstom turbine models allows us to deliver OEM-quality results without the high OEM costs. From full rotor overhauls to advanced component restoration and field service mobilization, we offer end-to-end solutions tailored specifically to the GT11 platform. With in-house engineering, fully integrated shop capabilities, and 24/7 field support, we help you extend the life of your GT11 turbine while minimizing downtime and maximizing long-term performance.

Field Services for GT11 Turbines

Get more for your GT11 gas turbine

Allied Power Group is the go-to service provider for GT11 turbines, offering unmatched expertise in turbine maintenance and operational optimization. Our tailored solutions ensure that each turbine operates at peak performance, with minimal downtime and maximum efficiency. Allied Power Group’s focus on customer service and technical excellence makes us a preferred partner for energy companies looking to enhance the lifespan and profitability of their turbine investments. Choosing Allied Power means gaining a power partner committed to achieving the highest standards in turbine care and performance.

Turbine Component Repair

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Fuel Nozzle Repair Services

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Turbine Rotor Repair

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Allied Power Group's Gas Power services team is committed to partnering with you to deliver solutions that enhance your competitive edge, profitability, and productive results. For any requirement you may have, Allied Power Group stands prepared to assist with the most suitable heavy-duty gas turbine service solutions and a range of product offerings.