As part of the refurbishments, the hydro power plant in Storuman, Umluspen, will get two new turbines and its production will be increased by 8 gigawatt hours per year.
Starting in 2014, about SEK270m ($40m) will be invested in the power plant, which will be able to provide electricity for 1,600 households per year once fully operational.
In January this year, a SEK1bn ($147m) investment in the hydro power plant Akkats, in Jokkmokk, was completed by Vattenfall.
Hydropower accounts for about 20% of Vattenfall’s total electricity generation and 41% of Sweden’s electricity.