PSI Repair Services, Inc.  

Livonia,  MI 
United States
  • Booth: 1808

PSI shipped over 40,000 wind turbine component repairs!

PSI Repair Services offers component repair and engineering services on GE, Vestas, Gamesa, Siemens, RePower, Suzlon, Mitsubishi, Nordex, Acciona, and Clipper wind turbines. PSI covers the critical electronic and precision mechanical components that drive the turbines’ pitch and yaw systems and down-tower electronics.  PSI has repaired over 40,000 components for the wind industry.  Our engineerings perform RCA analysis and Corrective Engineering resulting in greater reliability and efficiency by incorporating newer generation technology.  

Brands: Upgrades, RCA and corrective engineering.

 Press Releases

  • Visit PSI in Booth 1808 at the WINDPOWER Conference in Houston to learn about the latest repair and engineering services available to Wind Farm Operators

    Livonia, Michigan – PSI Repair Services, Inc., a subsidiary of Phillips Service Industries and leading independent service provider (ISP) to the wind energy industry, announced today that it recently surpassed 40,000 repaired wind turbine parts for the wind energy market, following a very busy 2018.

    PSI offers component repair and engineering services for GE, Vestas, Gamesa, Siemens, RePower, Acciona, Suzlon, Nordex, Mitsubishi, and Clipper wind turbines. PSI covers the critical electronic, hydraulic and precision mechanical components that drive the turbines’ pitch and yaw systems and down-tower electronics. Commonly repaired components include printed circuit boards, pitch drive systems, inverters, IGBTs, PLCs, VRCC units, AEBIs, proportional valves, hydraulic pumps, pitch and yaw motors, encoders, slip rings, transducers, yaw modules, 3-phase bridge rectifiers, blade bearing automatic grease dispensers, active crowbars, line reactors, oil level sensors, battery chargers, cold climate converters, anemometers and more.

    PSI’s engineering services include custom tests, root cause analysis, product upgrades, remanufacturing, and new product manufacturing services. The custom test program utilizes advanced diagnostic equipment, allowing PSI to detect hard part failures, as well as parts degraded due to stress, right down to the microchip level. The root-cause analysis service allows PSI to get a comprehensive view into a customer’s production environment to identify all the elements connected to recurring problems so that the appropriate corrective actions eliminate the problem. The product upgrade service allows PSI to improve upon legacy design with newer, more reliable technology. PSI’s remanufacturing services are available for obsolete and unsalvageable parts, such as circuit boards and power supplies. Finally, the new product manufacturing service is available for customers who need a cost-effective option to produce a small run of unique legacy parts or components.

    Wind energy professionals can catch PSI Repair Services at AWEA’s WINDPOWER Conference & Exhibition in Houston, TX May 20-23, 2019 in booth 1808. For more information about this event, visit

    “Since 2009, PSI has provided economical repairs, as well as industry-leading engineering services, for the largest wind farms in the United States,” said Mike Fitzpatrick, General Manager of PSI Repair Services, Inc. “We are proud to exhibit at this year’s WINDPOWER Conference in Houston, which marks our 10th consecutive year of exhibiting at this fantastic event.”

    For more information about PSI’s wind energy services, visit You can also follow PSI Repair Services on Facebook, Twitter, and LinkedIn.


  • GE 30Nm Hub Converter - Custom Upgrades
    PSI offers repair and product upgrade services for GE 30Nm Hub Converters, which commonly fail due to underrated integrated circuits....

  • PSI’s custom upgrades to this critical component has sustained performance having been field installed in over 7,200 applications.  The upgrade prevents failures from heat and power surges.  PSI’s design upgrades of the switching driver, bus board and ruggedized ground lug threads have reduced failures by over 80%.  The PSI upgrade produces less heat, greater reliability and efficiency to the OEM design.

  • PITCHmaster Servo Drive - Custom test and repair
    PSI offers repair services for PITCHmaster servo drives made by LTI and Moog. Repair includes disassembly, evaluation, replacement of failed and degraded parts, as well as functional system test and quality assurance inspection....

  • PSI’s custom test and repair procedures include an OEM Pitch Motor and associated equipment.  A microprocessor controller is used for pulse signal input and fault output monitoring.  Testing is conducted under full current and voltage pulse testing to detect weak and stressed components.  The procedures used to repair and test this assembly have been developed under similar motor drives that has been a Core Capability of PSI for the last 30 years.

For technical assistance with this webpage please contact support.

For exhibits or membership questions, contact Mark Bakke at (202) 383-2502 or email
For proposal or program questions, contact Kelsey Clark at (202) 383 -2540 or email
For general conference and registration questions, contact