| Fagerli Power Station | |
| Name Official: | Fagerli kraftverk |
| Coordinates: | 67.1192°N 16.0772°W |
| Location: | Sulitjelma, Nordland |
| Country: | Norway |
| Owner: | Salten Kraftsamband |
| Status: | O |
| Res Name: | Nedre Daja |
| Lower Res Name: | Langvatnet |
| Plant Hydraulic Head: | 232 m |
| Plant Capacity: | 48 |
| Plant Annual Gen: | 252 |
| Plant Capacity Factor: | 59.9% |
The Fagerli Hydroelectric Power Station (Norwegian: Fagerli kraftverk or Fagerli kraftstasjon)[1] is a hydroelectric power station in the municipality of Fauske in Nordland county, Norway.[2] It utilizes a drop of 232m (761feet)[1] between its intake reservoir at Nedre Daja (Lower Lake Daja; also Norwegian: Dajavatnet,[3] Lule Sami: Vuolep Dája[3]) and Langvatnet (Long Lake) in Sulitjelma. The plant operates at an installed capacity of, with an average annual production of about 252 GWh.[1] It is owned by Salten Kraftsamband and came into operation in 1975.[1] The Fagerli plant was the first one built by Salten Kraftsamband, in cooperation with Sulitjelma Mines.[1]
By 1898 a power station had been set up at the outflow of the Balmi River into Langvatnet, also named the Fagerli Power Station. It was built by Sulitjelma Mines and supplied electricity for general use in Sulitjelma and to the mine. It originally had an installed capacity of 175 kVA and a voltage of 5 kV. The power station was upgraded several times, and in 1929 a 4.2 MVA generator was installed with a 3.6 MW turbine. The gross head was with a maximum discharge of . A particular problem was the large amount of sediment carried by the Balmi River, which caused extensive wear and tear to the turbines.[4]