$250m Norwegian hydropower plant modernisation completed

Statkraft has completed a $250m modernisation of the Nedre Rossaga hydropower plant in Norway.

The 60-plus year old plant at Hemnes, Nordland has re-opened with a new larger capacity, going from 250 MW to 350 MW.

The plant is capable of serving 100,000 Norwegian households and provides 1.6 per cent of the country’s production.
Tunnel construction at Nedre Rossaga hydroelectric power plant
The refurbishment of the power plant began in spring of 2012 and was considered as one of the largest hydropower projects in Norway. After completing the expansion, trial operations took place between July and August this year.

Three power producing units have been modernised and three other units were decommissioned.

At the same time, a new power station with one large power unit has been built. The new station has been built inside the mountain and is placed next to the old power station.

Statkraft claims that for the first time, new waterways were made through a tunnel boring machine in Norway. About 19km of new tunnels have been drilled for the project.

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