Stegaros power plant in Tinn Municipality in Telemark County was commissioned in 2002.

Ownership: 50 %
Production: 12.0 GWh
Power: 2.4 MW

The power plant uses a height of fall between Lake Mårvatn and Lake Kalhovdfjorden. The plant has an installed capacity of 2.4 MW and an annual average production of 12 GWh.

The power plant uses a 2.4-kilometre-long head race tunnel from the intake in Lake Mårvatn. The height of fall is 30 metres.

Statkraft and Tinn Energi each own 50 per cent of Stegaros power plant. Tinn Energi is the operator of this plant.