New unit powering up Sweden’s sustainable future

In May 2025, a new chapter began for the Rengård Hydropower Plant as the newly built G2 unit was officially inaugurated. The ceremony was led by County Governor Helene Hellmark Knutsson and Skellefteå Kraft CEO Joachim Nordin, marking a major milestone in the plant’s development and a proud moment for Swedish renewable energy.

The new G2 unit represents a leap forward in both technology and environmental performance. At its core is a cutting-edge, oil-free Kaplan turbine paired with a high-efficiency generator from ANDRITZ, tailored for modern demands on flexibility, efficiency, and sustainability. With a net head of 19.3 meters and a flow capacity of 130 m3/s, the new unit produces 23.9 MW of clean, reliable hydropower. The generator, rated at 27.2 MVA, is engineered for high performance and low maintenance, ensuring long-term operational reliability.

This development builds on previous modernization work at Rengård. The existing G1 unit was recently upgraded with a new turbine and a more powerful generator, boosting its capacity from 40 to 50 MVA. With both units now fully operational, the plant has more than doubled its total generation capacity, from 35 MW to 71 MW. This increase significantly enhances regional energy security and strengthens the resilience of the Swedish national power grid.

Developed through close collaboration between Skellefteå Kraft, ANDRITZ, NCC, and Norconsult, the project was executed to high environmental and technical standards using advanced Building Information Modeling (BIM) technology throughout the process. Backed by a SEK 1 billion investment, Rengård hydropower plant is now equipped to meet the challenges of tomorrow — efficient, sustainable, and built for the future. 

Author: Peter Knutsson