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Harsprånget is a hydroelectric power station located on the Lule River in northern Sweden, just downstream of Porjus.
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| Harsprånget | |
|---|---|
 | |
  Location of Harsprånget in Sweden | |
| Country | Sweden |
| Location | South of Porjus |
| Coordinates | 66°57′15″N 19°48′53″E |
| Status | Operational |
| Construction began | 1918 Cancelled 1921 Restarted 1945 |
| Opening date | 1951 |
| Owner(s) | Vattenfall |
| Dam and spillways | |
| Type of dam | Rock-fill dam |
| Impounds | Lule River |
| Height | 50 m (164 ft) |
| Length | 1,400 m (4,600 ft) |
| Dam volume | 6,000,000 m3 (210,000,000 cu ft) |
| Reservoir | |
| Creates | Harsprånget Reservoir |
| Power Station | |
| Type | Conventional |
| Hydraulic head | 107 M |
| Turbines | 3*110 MW, 1*180 MW, 1*465 MW, All of Francis-type |
| Installed capacity | 977 MW |
| Annual generation | 2,1 TWh (2009) |
With a power of 977 MW,[1] it is 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.
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.
| 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.
