About Hydroelectric Power Services


We are ready to demonstrate our commitment to safety, high quality and honest work at your facility, and together we will become the success of your next project!

HCMS specializes in the repair, refurbishment, installation and maintenance of hydroelectric turbines and generators and also provides a range of consulting services, including condition assessments, specialized testing, and the development of preventive maintenance programs. HCMS serves a diverse range of clients, including utilities, municipalities and manufacturers of turbines and generators. HCMS will become a part of TCG’s existing Power Services division.

Thompson’s Hydroelectric Power Services division, HCMS (Hydro Consulting and Maintenance Services) is based in York, Pennsylvania. We offer highly trained and qualified, industry-proven Hydro Specialists for consulting, upgrading, maintenance, repair and rehabilitation services across the Hydroelectric Power Industry.


Our highly trained team can handle your project with professionalism and skill.

   Hydroelectric Power Services Brochure (Download PDF)


  • New Installations
  • Turbine Overhauls Including Alignment
  • Kaplan Hub Repair & Refurbishment
  • Francis Runner Repair & Refurbishment
  • Cavitation Repair
  • Field Machining Services


  • Re-Wedging
  • Rotor Pole Field Removal
  • In-Place Collector Ring/Brush
  • Refurbishment

Technical Consulting

  • Troubleshooting
  • Start-Up & Commissioning
  • Inspection & Testing Services
  • QC & SSHO Services
  • Contract Inspection and Monitoring Services

Balance-of-Plant Services

  • Mechanical Systems
  • Piping
  • Electrical Systems and Controls
  • Infrastructure Modernization

Asset Management

  • Equipment Health Scoring & Risk Mapping
  • PM Program Development
  • Facility Cost & Performance Analysis
  • Due-Diligence Studies and Plant Valuations

Hydro Operations & River Management

  • Plant Operations Training
  • Equipment Operations Training
  • Water Use Efficiency Studies

Put our expertise and experience to work for you.

Contact Us

At Thompson, we are a family.