Sundsfjord Hydroelectric Power Station
The Sundsfjord Hydroelectric Power Station is a hydroelectric power station in the municipality of Gildeskål in Nordland county, Norway. Part of the plant's catchment area also lies in the municipality of Beiarn.
The plant utilizes a drop of, using three lakes as reservoirs: Sokumvatnet and Langvatnet, both regulated between an elevation of and, and Arstaddalsdammen, which is regulated between an elevation of and. The Forså Hydroelectric Power Station supplies water to Sokumvatnet and the Langvann Hydroelectric Power Station supplies water to Langvatnet.
The plant has three 34 MW Francis turbines with an installed capacity of and an average annual production of about 535 GWh. Its catchment area is. The plant was originally built by Norsk Hydro and Gildeskål Kraftlag to supply industry at Glomfjord and is now owned by Salten Kraftsamband. It came into operation in 1963.
