Overall Rehabilitation of KHR Hydropower Plants, Switzerland

The Kraftwerke HinterRhein AG (KHR) operates a group of three hydropower plants in the Swiss Alps ‒ Ferrera, Bärenburg and Sils ‒ with a total installed capacity of approximately 650 MW. KHR also operates the smaller Thusis hydropower plant (6 MW). Most of the KHR power plants have been in operation for more than 40 years, and it was decided that a complete rehabilitation of the plant equipment and structures was required.

ClientKraftwerke HinterRhein AG (KHR), Thusis, Switzerland
LocationSwitzerland
Services Period2007 – 2017
Technical Data
HPP Ferrera  
  • Installed capacity:
3 x 60 MW
  • Max. head:
524 m
  • Storage pumps:
2 x 25 and 1 x 40 MW
HPP Bärenburg  
  • Installed capacity:
4 x 55 MW
  • Max. head:
321 m
HPP Sils  
  • Installed capacity:
4 x 62 MW
  • Max. head:
413 m
HPP Thusis  
  • Installed capacity:
2 + 4 MW
  • Max. head:
100 m
  
Services

Part A - Preliminary design study:

  • Overall management, condition assessment and determination of remaining service life
  • Scheduling and preparation of concept
  • Cost estimate and risk analysis


Part B - Tendering and construction supervision:

  • Preparation of tender documents
  • Client support during contract award
  • Construction and erection supervision
  • Acceptance tests
  • Supervision of commissioning

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