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Hydro power as an energy storage mechanism

Hydroelectric stations with reservoirs have an important function in increasing power production from other renewable energy sources such as wind and solar energy. In contrast to these technologies, hydro power can easily be turned on and off depending on when we need it. In this way, hydroelectric power can be switched on when there is no wind, or little sun. 

Norway possesses unique energy resources. About half of Europe’s hydro storage capacity is found in Norway. Most of the renewable energy that is being developed in Europe at the moment is intermittent, which means that the flexibility provided by Norway’s hydro power is particularly important. Both the power industry and the Norwegian authorities believe Norway could become a major exporter of green power to Europe.