Ownership: 4.79 %
Production: 150 GWh
Power: 40 MW
The Kvanndal hydropower plant is located in Suldal Municipality in Rogaland County, and started operations in 1967. The power plant utilises a gross head of 328 meters from the reservoir Sandvatnet to Kvanndalsfoss in the Røldal-Suldal river system.
Kvanndal consists of one Francis turbine with an installed effect of 40 MW and an annual mean production of 150 GWh. The development of the power plants in Røldal-Suldal took place in connection with the need for power deliveries to Norsk Hydro's primary aluminium plant at Karmøy.