Valken power plant in Saltdal municipality was commissioned in December 2015. The power plant uses a drop of 210 meters in the Saksenvik river and has an installed capacity of 9.9 MW. The power plant will have an average annual production of approximately 29 GWh, which corresponds to the electricity consumption of approximately 1,500 households.
The dam and intake are built in cast-in-place concrete with an HRV of 330.5. From the intake, the water is led into a 1,760 meter long tunnel down to the power station. The last part of the waterway consists of ductile cast iron pipes with a diameter of 1.6 meters that are dug into the sole of the tunnel between the concrete plug and the power station.
From the intake, a minimum water flow of 500 l/s must be released past the intake between May 1 and September 30. In the period October 1 to April 30, 70 l/s must be released. If the inflow is less than the minimum water flow requirement, the entire inflow must be released.
The power station has a Pelton unit with a capacity of 1.3 m³/s and a Francis unit with a capacity of 4.0 m³/s, with a total output of 9.9 MW. The power station consists of a machine room, control room, high voltage room and external transformer rooms.
Technical data
Rainfall field
59,2 km²
Minimum water flow
Summer: 500 l/s
Winter: 70 l/s
Intake elevation
330,0 m
Power station elevation
210,0 m
Drop height
120,0 m
Production
25,0 GWh
This corresponds to electricity for 1563 households.