Sundsfjord Hydroelectric Power Station

The Sundsfjord Hydroelectric Power Station ( or "Sundsfjord kraftstasjon") 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.