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Øvre Røssåga power plant

Norway / Hydropower / Power plant

The Røssåga power plants are located in Hemnes Municipality in Nordland County.

  • 1961
    Entered into operation
  • 170 MW
    Installed capacity
  • 963 GWh
    Annual production

Øvre Røssåga power plant uses the height of fall between Lake Røssvatnet and Lake Stormyrbassenget, while Nedre Røssåga power plant uses the height of fall between Lake Stormyrbassenget and the village of Korgen.

Lake Røssvatnet has a reservoir capacity of 2.35 billion cubic metres, and is Norway's second-largest lake measured by surface area.

The development of the Røssåga power plants involves the municipalities of Hemnes, Hattfjelldal and Grane. The development was linked to operating the ironworks in Mo i Rana and the aluminium plant in Mosjøen.

Øvre Røssåga power plant has three generating units with Francis turbines. The gross height of fall is 136 metres.

Øvre Røssåga power plant entry portal
Øvre Røssåga power plant entry portal (Photo: Statkraft)

In the period 2016–2018, the three generating units at Øvre Røssåga were rehabilitated and a new parallel outlet tunnel put into operation. Increased power, new tunnels and rehabilitation projects raised production levels by 200 GWh at Øvre and Nedre Røssåga power plants.

Architect Hans Grinde drew the plans for and participated in the planning of Øvre Røssåga power plant.

Øvre Røssåga power plant machine room
Øvre Røssåga power plant machine room (Photo: Statkraft)

 

Company Ownership share
Statkraft 100%

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