Maintenance Services

We make sure you're energized.

Maintenance is critical to efficiency. That’s where we come in. We’re focused on improving equipment dependability and reducing your maintenance cost. We're your round-the-clock provider of outage management and technical support. We divide our services into six maintenance groups. Each provides a unique solution for you.

For a fixed monthly charge, based on fired-factored hours or fired-factored starts, we optimize your plant’s maintenance. You don’t pay us unless your unit is running smoothly. Let us reduce your risk and increase your peace of mind. Stay plugged into it all, and view our brochure.

Technical Services

Our experts can handle all of your needs — from gas, wind and boiler turbines to rotating and control equipment.
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  • Project management
  • Technical directions
  • Technical support
  • Procedure creation
  • Bid specification preparations
  • Planning and scheduling services

Field & Outage Services

Our on-site services provide immediate response to forced outage events. Our dedicated team becomes part of yours.
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Inspection Services

  • Boiler & piping inspections
  • Turbine inspection
  • Video inspection
  • Portable material analysis

I&E Services

  • Protective relaying, energy manage-
    ment systems, digital fault recorders
  • Voltage regulators, SCADA Communi-
    cation, fiber-optics data acquisition

Generator Services

  • Fired and unfired boiler repairs
  • Air preheater program
  • Safety relief valves
  • Boiler tube failure program

Field Machining

  • Climax-boring equipment
  • Climax-flange facers
  • Climax-portable mills
  • Lamina-mag-based drills
  • EFCO-valve-grinding equipment
  • Pipe-cutting equipment

Repair & Overhaul

We offer three state-of-the art regional shops for comprehensive solutions for rotating equipment.
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Shop Equipment

  • 60,000 square-foot, climate-controlled shop floor
  • Center bay cranes: 100/25 ton & 15/5 ton
  • OSHA VPP Star Site safety
  • QC program to track shop work and equipment calibration
  • Lathe: 138 in. swing, 35 ft. between centers
  • Vertical-boring machine: 17 ft. swing
  • Horizontal-boring machine: 9 ft. vert. x 20 ft. horz.
  • Abrasive water jet with cutting table: 12 ft. x 6 ft.
  • 34 ft. long blast house with 100-ton crane access
  • Material-analysis lab-electron microscope scanning, hardness testing, field replication, optical-emission spectrometer

Steam Turbine Repair

  • Rotor inspection and repair
  • Nozzle blocks
  • Machining
  • Blade repair and replacement
  • Turbine case welding and machining
  • Diaphragm partition repair, steam erosion weld repair and re-rounding
  • Repairer or manufacturer of oil deflectors and seals

Gas Turbine Repair

  • Rotor inspection and repair
  • Rotor disassembly and reassembly
  • Field services (TFA support)
  • Technical support
  • Hot gas path parts
  • Rotor life management programs
  • Major maintenance program

Valve and Bearing Repair

  • Turbine control, stop and intercept valve
  • Feed water valves
  • Governor valves
  • Satellite re-surfacing of seats
  • Weld build-up of eroded areas
  • Machine weld preparation
  • Bushing replacement
  • Replacement parts
  • Experience repairing over 1,000 valves


  • AC/DC electric motor testing & refurbishment
  • Ability to accommodate motors up to 4,160 volts and 2,000 HP motors
  • Building crane capacity rating of 10 tons
  • Incoming electrical testing

Pump Capabilities

  • High speed centrifugal horizontal and vertical pumps
  • Boiler feed pumps
  • Experience on pumps from all major manufacturers
  • Over 30 years of experience
  • Experience with top manufacturers, including Allis-Chalmers, Byron Jackson, Delaval and Pacific

Parts Supply

Your parts will work at all times. Your equipment will run better, last longer and be more cost-effective.
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List of Parts

  • Buckets
  • Nozzles
  • Gas turbine rotors
  • Rotor spare program
  • Thru-bolts
  • Gearboxes
  • Generator parts
  • Steam turbine parts

Major Maintenance Services

By improving performance and reliability, you’ll improve performance and reduce risk for more peace of mind.
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  • Provide technical support through complete field services overhaul
  • Supply new and used capital spare parts spare parts supply new and used
  • Reduce risk and get power protection and peace of mind
  • Leverage NRG’s network of suppliers and vendors relationships
  • Optimize asset and provide economies of scale
  • Offer Single point of contact so you can ensure NRG achieves your performance goals
  • Give you the peace of mind to not have to hold spare inventory

Life Assessment Program

For a fixed monthly cost, we provide end-of-life inspections and engineering evaluations to your facilities.
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  • Addresses TIL 1576, which shortens downtime and extends rotor life by 50,000 hours or 2,500 starts
  • Provides specific units: GE frame 3, 5, 6B, 7B, E/EA units
  • Offers rotor swap program to reduce risk of a rotor not passing an inspection
  • Boasts a stock of replacement turbine discs