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HydroBalance Pilot Study

The HydroBalance project addresses the potential need and challenges of Norwegian hydro storage for balancing Europe’s growing wind power production and other non-regulative energy sources. The objective is to describe the balancing power potential in South‐Norway based on initial case studies, including environmental effects in reservoirs, grid capacity needs, social acceptance and industrial opportunities. 

Norwegian hydro power reservoires is a possibility for balancing the growing wind power production in Europe.     


When the wind power plants generates more energy than Europe need, the excess energy can be used to pump water up to large existing reservoirs in Norway. When there is too little wind the elevated water can be used to supply Europe with the needed energy.

An initial study has identified a potential between 11.500 MW and 20.000 MW which could be realized in existing reservoirs in Southern Norway.

Further on the project will:

  • Finalize the description of the balancing power potential in South Norway based on the results from the initial case study. The activity regarding balancing power needs is to describe needs related to the variation in wind power production from a 94.000 MW wind power installation in the North Sea basin.
  • Illustrate the grid capacity needs with focus on the connection of the balancing power plants from the case study to the central grid in Norway.
  • Mapping potential sites for pumped storage hydropower among existing reservoirs in Norway, within the limits for their minimum and maximum allowed water level, as well as reservoir volume.

The centre partners aim to establish a more comprehensive project to continue the work of the above described phase of HydroBalance.

CEDREN has also organized and participated in several international workshops relevant to Norwegian hydro storage and transmission between Norway, the continent and Great Britain:



About HydroBalance


Full project title: HydroBalance

Start: 2010

End: 2012


Contact: Eivind Solvang, SINTEF