Jump to content Jump to navigation Jump to search
River
India
William Wootton

The Tidong River

Sima power plant

Norway / Hydropower / Power plant

Sima power plant is located in Eidfjord Municipality in Vestland County.

  • 1980
    Entered into operation
  • 1,120 MW
    Installed capacity
  • 3,113.2 GWh
    Annual production

The power plant includes the regulating facilities and the two power stations Lang-Sima and Sy-Sima in a common machine hall. Power production started in 1980.

The total length of tunnels and shafts blasted through the rock is 61.3 kilometres. The largest water reservoirs are the Lakes Langvatn, Rundavatn, Rembesdalsvatn and Sysenvatnet, all with rockfill dam walls. The plant regulates three waterfalls; Vøringsfossen, Skykkjedalsfossen and Rembesdalsfossen.

Sima power plant is regarded as a stellar example of the art of hydropower engineering. Sima is the second largest power plant in Norway measured in total capacity.

Lang-Sima power station uses a catchment area approximately 1,100 metres above sea level, south and west of the Hardangerjøkulen glacier i.e. the vertical stretches of the Norddøla and Austdøla rivers down to Osafjorden, and a catchment area approximately 1,170 metres above sea level that drains down the Sima River. The height of fall is 1,065 metres and the installed capacity of its two generating units is 500 MW.

Sy-Sima power station uses the catchment area of the Sima River and the upper stretches of the Bjoreia River and its tributaries the Leiro and Isdøla. The height of fall is 905 metres and the installed capacity of its two generating units is 620 MW.

Statkraft is owner and responsible for the daily operation and maintenance of Sima power plant. The other owners are BKK (Bergenshalvøens Kommunale Kraftselskap) and SKL (Sunnhordland Kraftlag).

 

Company Ownership share
Statkraft 65%
BKK 26.25%
SKL 8.75%
  • Entry portal at Sima power plant.
    Sima
    John Petter Reinertsen

    Entry portal with access to Sima power plant inside the mountain

  • Ball valve regulating water flow into turbine at Sima power plant.
    Sima
    John Petter Reinertsen

    Enormous ball valve regulating water flow into turbine.

  • Machine hall at Sima power plant
    Sima
    John Petter Reinertsen

    Machine hall at Sima power plant.

  • Sy-Sima generating units at Sima power plant
    Sima
    John Petter Reinertsen

    Machine hall with two Sy-Sima generating units

  • Turbine shaft at Sima power plant
    Sima
    John Petter Reinertsen

    Turbine shaft and servo linkages to guide vanes.

  • Sy-Sima generating units at Sima power plant
    Sima
    John Petter Reinertsen

    Sy-Sima generating units shown from a different angle.

Find out more about our activities in Norway

Contact us