Access tunnel and reception building at Skollenborg power plant. (Photo: PeltonMan, Wikimedia Commons)

Skollenborg power plant is located about 350 metres inside a mountain at Skollenborg in Kongsberg Municipality, Buskerud County.

Ownership: Statkraft is an indirect co-owner through its 66.62 per cent ownership in Skagerak Energi AS
Production: 395 GWh
Power: 97 MW

Skollenborg is a typical run-of-river power plant and was built in 1983 to replace the old power plants Labro and Gravenfoss.

The power plant uses a height of fall of 60 metres in the Numedalslågen River and is equipped with two Kaplan turbines which together produce 97 MW. Annual mean production is 395 GWh.

Traces of Norway's first silver mine can be seen in the access tunnel to the power plant.