Kjensvatn Kraftverk Hydro Power Plant, tunnels and caverns

Kjensvatn power plant uses a height of fall of 70 metres between Lake Gressvatn and Lake Kjensvatn. In addition to water from Lake Gressvatn, water is also transferred from Lake Durmålsvatn and the stream Gråfjellbekken. A tunnel from Leirskardalen Valley has been extended and serves both as a diversion tunnel to Lake Gressvatn and head race tunnel to the power plant. The waterways and power plant are all located inside the mountain.
Production: 75 GWh Power: 12 MW
total length of the tunnels excavated: approx. 7 000 m profile: 22 m2