Tinnelva is a river in

Notodden Notodden () is a List of towns and cities in Norway, city and List of municipalities of Norway, municipality in Vestfold og Telemark Counties of Norway, county, Norway. It is part of the Districts of Norway, traditional region of Øst-Telemark. ...

Vestfold og Telemark Vestfold og Telemark (; ) is a county under disestablishment in Norway. The county is the southernmost one of Eastern Norway and consists of two distinct and separate traditional regions: the former counties of Telemark and (most of) Vestfold. T ...

, Norway. It flows from

Lake Tinn A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger ...

Heddalsvatnet Heddalsvatnet ( en, Lake Heddal) is a lake in the municipalities Notodden and Sauherad in Vestfold og Telemark, Norway. The main influx comes from the rivers Tinnelva and Heddøla. The lake covers an area of 11.9 km2 or 13.2 km2 according to NVE. ...

. The waterfalls Årlifossene, Grønvollfoss, Svelgfoss and Tinnfoss are exploited, and the

hydroelectric power station Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and ...

s have a combined installed capacity of .

References

Notodden Rivers of Vestfold og Telemark {{Norway-river-stub