Nygård power plant
Nygård power plant is a reservoir plant where a total of 7 reservoirs with 18 large and small ponds are regulated.
Nygård power plant utilizes the drop between Trollvatn located on Nygårdsfjell and Rombaksfjorden in the municipality of Narvik.
The power plant consists of three vertical Francis turbines at respectively 8, 8 and 9MW. In the regulated area a total of two reservoirs is regulated. Sirkelvann power plant is also located inside the regulated area. Trollvatn is the intake reservoir, from which the water goes in a 3,6km long tunnel. Then the water goes down a 590 long pipeline to the power station at sea. The power plant consists of a total of 7km tunnels.
The power plant has a catchment area of 152km2 and an average annual production of 110GWh. The last major modernization at the plant was completed in 1997-1998. Both excitation, turbine governor, high voltage system, cooling water systems and control systems were replaced.
| Reservoir volume Fiskeløsvatn store | 17,2mill.m3 |
|---|---|
| Reservoir volume Fiskeløsvatn lille | 2,9mill.m3 |
| Reservoir volume Skitdalsvatn | 4,3mill.m3 |
| Reservoir volume Sirkelvatn | 13,3mill.m3 |
| Reservoir volume Jernvatna | 52,9mill.m3 |
| Reservoir volume Nygårdsvatn | 3,2mill.m3 |
| Reservoir volume Store Trollvatn | 2,5mill.m3 |
| Catchment area | 152km2 |
| Vertical drop | 250m-259m |
| Maximum absorption capacity | |
| Speed | 750rpm |
| Generator output | 26,3MVA |
| Generator voltage | 6600V |
