The lake is dammed from the Folda River and the water is used in the Trollheim power station. Slightly more elevated and directly to the south is the Gråsjøen reservoir, which is also behind a hydro-power dam.
The lake captures water from the Folda River and provides energy for the Trollheim power station. Nearby, at a higher elevation, the Gråsjøen reservoir also relies on a hydroelectric dam.