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Nant de Drance PSPP

Project management and design of the 900 MW Nant de Drance pumped storage facility in Switzerland

Description of project:

The Nant de Drance pumped storage facility (900 MW) was designed to exploit part of the enormous hydroelectric potential of the Swiss Alps. The plant makes use of a vertical difference of more than 350 metres between two existing reservoirs connected by a system of water galleries. The powerhouse cavern is 52 m high, 32 m wide and 190 m long and houses six 150 MW pump turbines.

Project period: 2005 – ongoing. Commissioning is foreseen by the end of 2019 – beginning of 2020.

ÅF's services:

  • Overall project management
  • Basic, tender and final design
  • Site supervision
  • Commissioning.

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