Harsprånget hydroelectric power station

Dam in Sweden

Dam in South of Porjus

66°57′15″N 19°48′53″E / 66.95417°N 19.81472°E / 66.95417; 19.81472StatusOperationalConstruction began1918 Cancelled 1921
Restarted 1945Opening date1951Owner(s)VattenfallDam and spillwaysType of damRock-fill damImpoundsLule RiverHeight50 m (164 ft)Length1,400 m (4,600 ft)Dam volume6,000,000 m³ (210,000,000 cu ft)ReservoirCreatesHarsprånget ReservoirPower StationTypeConventionalHydraulic head107 MTurbines3*110 MW, 1*180 MW, 1*465 MW, All of Francis-typeInstalled capacity977 MWAnnual generation2,1 TWh (2009)

Harsprånget is a hydroelectric power station located on the Lule River in northern Sweden, just downstream of Porjus.

With a power of 977 MW,^[1] it's the largest hydroelectric power station in Sweden, and also the fourth largest in the Nordic countries. The name means "Hare Run" in Swedish. This was also the name of the mighty rapids there, and the name was related to the sharp turns in the rapids, a little similar to the ones a hare does when fleeing. Normal year production is around 2131 GWh. Total fall height is around 107 m.

History

Construction of the station started in 1918. However, recession after World War I cancelled the construction, which was not started again before 1945. It was opened in 1951, then with a power of 330 MW. In 1980, two new turbines were installed which increased the max power to 945 MW. The rated power was later increased further.

Turbines

The turbines are of Francis type with vertical axis and steel spirals.
Units	1	2	3	4	5
Capacity	110 MW	110 MW	110 MW	180 MW	475 MW
Maximum water flow	127 m³/s	127 m³/s	127 m³/s	175 m³/s	485 m³/s
Revolutions/min	166,7 r/min	166,7 r/min	166,7 r/min	166,7 r/min	107,1 r/min
Cog diameter	3,6 m	3,6 m	3,6 m	4,2 m	6,6 m
Supplier	NOHAB	NOHAB	NOHAB	KMW	NOHAB

Grand total of 977 MW.

References

^ "Harsprånget". Vattenfall. Archived from the original on 23 October 2014. Retrieved 13 June 2023.

Vattenfall

Divisions and
subsidiaries

Current	Vattenfall Europe Nuclear Energy GmbH Vattenfall United Kingdom Vattenfall Nederland
Former	50Hertz Transmission GmbH¹

Joint ventures

Aegir Wave Power
Deutsche Gesellschaft zum Bau und Betrieb von Endlagern für Abfallstoffe (5.5%)
Deutsche Offshore-Testfeld und Infrastruktur (26.25%)
Gesellschaft für Nuklear-Service (5.5%)

Places and
facilities

Denmark

Germany

Coal	Boxberg Jänschwalde Lippendorf Rostock (25%) Schwarze Pumpe
Nuclear	Brokdorf (20%) Brunsbüttel² (67%) Krümmel² (50%) Stade² (33.3%)
Wind	Alpha Ventus Offshore Wind Farm⁴