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Climate change and hydropower production

Photo_Klimaaenderung_und_Wasserkraft_-_210_x_280.jpg
How will the inflow of water to hydropower plants change in future?
Foto: Jonas/Magnusson (WSL)

In this interdisciplinary project research teams from WSL (Mountain Hydrology and Torrents), Univ. Bern (Hydrology), ETH Zürich (Atmosphere and Climate, VAW Glaciology, Centre of Energy Policy and Economics) and Univ. Zürich (Physical Geography) investigate the effect of a changing climate on the Swiss Hydropower production.

Main study

In a first step climate change scenarios will be downscaled from climate models for the periods 2020 to 2050 and 2070 to 2100 for different regions of Switzerland. Past and future impacts of a changing climate will then be simulated for 30 to 50 representative Swiss catchments (including sensitivity analysis of the production and demand in respect to changes of the hydrometeorological conditions). Further, for a selection of 3 to 5 case studies (hydropower plants) the climate change impact on the hydropower production shall be analysed in detail.

The project is under the lead of the Mountain Water Network, and it is financed by swisselectric research and BfE.

Focus study Valais

An additional study (Valais, Hydropower, Climate Change) focusses on the southern Swiss region Valais. Similar analysis as in the main study will be done on a finer spatial scale. In addition, the impacts of climate change on glacier evolution and bedload transport will be analysed. This WSL-lead work is financed by the Department of Health and Energy of the Valais and the Forces Motrices Valaisannes.

Project cooperation


University of Bern, Groupe of Hydrology

ETH Zürich, Atmosphere and Climate

ETH Zürich, VAW Glaziologie

ETH Zürich, Centre for Energy Policy and Economics

University of Zürich, Department of Geography

Project team

  • Manfred Stähli
  • Massimiliano Zappa
  • Mélanie Raymond Pralong
  • Jan Magnusson
  • Tobias Jonas
  • Dieter Rickenmann
  • Jens Turowski
  • Alexander Beer

Contact