Bandak is a lake in the municipalities of Kviteseid and Tokke in Telemark county, Norway.

The lake, which is part of the Telemark Canal route, belongs to the Skien watershed.

[1][2] The Tokke Hydroelectric Power Station utilizes the hydraulic head from the nearby lake Vinjevatn to Bandak of about 394 metres (1,293 ft) to generate electricity.

It is one of northern Europe's largest power plants with a production of some 430 megawatts (580,000 hp).

The plant produces an average annual production of 2,140 gigawatt-hours (7,700 TJ).