Ljusnan

In Sweden, the Ljusnan river's source flow starts in the mountains northwest of Ramundberget on the Norwegian border. Together with its biggest tributary, Voxnan, Ljusnan is Sweden's sixth biggest producer of hydropower. The total utilised river to sea height drop is 570 m.

River system Ljusnan

In Ljusnan's catchment area Fortum has 23 wholly owned or part-owned hydropower plants. The river is 430 km long and the area of its catchment area is 19,830 km². Lossen is a big lake and a storage reservoir. Lossen and Grundsjön are the big annual storage reservoirs for Ljusnan.

Svegsjön came into being in 1975 through damming. With its area of 60 km² it is Härjedalen's biggest lake and one of the biggest artificial lakes in Europe, and it acts as a reservoir for Sveg power plant. Krokströmmen power plant is the biggest on Ljusnan in terms of energy, whilst together the two power plants in Långå have the biggest output. The catchment area also includes the following smaller power plants: Edeforsen, Viksjöfors and Lenninge.

Hydro power plant	Stream	Installed capacity (MW)	Normal annual production (GWh)	Year of Comm.	Fortum's share (%)
Långa G1 Lossen	Ljusnan	62.0	191.7	1973	100
Långa G2 Mittån	Ljusnan	94.0	214.9	1973	100
Halvfari	Ljusnan	24.0	76.1	1978	100
Sveg	Ljusnan	36.0	148.6	1975	80
Byarforsen	Ljusnan	16.0	85.0	1975	80
Krokströmmen	Ljusnan	103.0	522.5	1952	91.3
Långströmmen	Ljusnan	55.0	264.9	1961	89
Storåströmmen	Ljusnan	25.0	144.1	1962	100
Öjeforsen	Ljusnan	27.0	156.0	1967	100
Laforsen	Ljusnan	57.0	331.5	1953	100
Edeforsen	Ljusnan	0.6	5.2	1989	100
Norränge	Ljusnan	50.0	234.8	1964	100
Lottefors	Ljusnan	13.6	67.7	1958	100
Dönje	Ljusnan	72.0	390.0	1953	100
Viksjöfors	Flaxnan	2.3	7.0	1961	100
Alfta (Malvik)	Voxnan	32.0	140.0	1945	100
Sunnerstaholm	Voxnan	6.0	35.0	1942	100
Lenninge	Voxnan	2.7	15.0	1982	100
Landafors	Ljusnan	11.2	65.0	1976	100
Bergvik	Ljusnan	16.2	107.0	1961	100
Höljebro	Ljusnan	38.0	220.0	1967/2001	100
Ljusneströmmar	Ljusnan	36.4	252.7	1986	92.6
Ljusnefors	Ljusnan	14.5	97.0	1976	100