NCC is carrying out an expansion of the Bålforsen hydroelectric power station in Lycksele, Sweden, on behalf of energy company Uniper. The SEK 200 million project began in autumn 2024 and involves the installation of a new turbine along with upgrades to the existing units.
According to NCC, the new equipment will improve water flow in the Umeälven River, increase electricity production, and provide additional system services to support grid stability.
“Thanks to NCC’s broad experience in advanced infrastructure projects and our strong local roots, we can support Uniper in achieving its goals with the expansion of the Bålforsen hydroelectric power station. The work requires a high level of specialist expertise and we have a strong focus on safety in the project,” says André Persson, Area Manager, NCC Infrastructure.
When the expansion is complete, Bålforsen will produce 506 GWh per year, equivalent to the electricity needs of about 25,000 homes.
“The Umeälv expansion is important to us because it strengthens our ability to deliver sustainable energy when it is needed most,” says Jonny Arrehag, program manager for the project at Uniper.
As of September 2025, work includes blasting rock to create space for a new suction tube. Existing pipes and pillars are being removed, the bottom level is being lowered, and extensive rock and concrete work is underway. Beams and mechanical parts are also being manufactured and assembled in preparation for installing the new turbine.
