Hydropower plants

The river Byälven runs in the region of Värmland in Sweden. Fortum has five hydro power plants in the catchment area of Byälven.

In Sweden, the river Dalälven forms many rapids on its way down to the Gulf of Bothnia, and it is close to areas with a high energy requirement. Dalälven's catchment area is Fortum's biggest, comprising 33,480 km² and 39 hydropower plants.

The river Gullspångsälven in Sweden is one of Fortum's biggest main drainage basins in terms of number of plants, with 8 power plants distributed amongst three watercourses. Together with the arms Svartälven and Timsälven, the catchment area comprises 5,000 km².

In Sweden, the river Indalsälven, with its source lakes in the mountains of Jämtland, holds a high volume of water. At its mouth, the flow averages 440 m³ per second. Here, Fortum runs 10 hydro power plants.

In Sweden, Klarälven stretches from Långflon in the far north to Lake Vänern in the south. Klarälven's catchment area spans an area of 11,800 km², with half of it located on the Norwegian side.

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

Ljungan is a 399 km long river that flows from the Swedish mountains to the south of Sundsvall. Fortum has four power plants in the Ljungan river system, of which two are wholly owned.

In the main catchment area of the Norsälven River in Fryksdalen, Sweden, Fortum wholly owns 11 hydroelectric power plants. The area of the basin is 4,000 km².