by Siemens Energy
Siemens Energy and Vattenfall sign a 20-year turbine service deal for Forsmark and Ringhals nuclear powerplants, enhancing Sweden’s grid reliability.
The long-term service agreement (LTSA) includes Forsmark Units 1–3 and Ringhals 3 and 4 – two of Sweden’s most important producers at fossil-free electricity. Forsmark alone delivers approximately 25 TWh annually, making it one of the country’s largest power stations. Nuclear energy remains a central pillar of Sweden’s power supply and will continue to play a crucial role in meeting future electricity demand and grid stability.
The LTSA covers nine turbosets consisting of steam turbines and generators. Vattenfall relies on Siemens Energy as a holistic service provider with strong local expertise, field service, and project management capabilities in Sweden. Siemens Energy’s global center of competence in Mülheim, Germany, strengthens this partnership with world-class steam turbine and generator engineering and manufacturing excellence.
Forsmark power plant, Sweden
Siemens Energy and Vattenfall designed the agreement as a long-term partnership focused on high plant availability and stable asset performance. The collaboration supports Sweden’s long-term electrification goals and reinforces the reliability of its fossil-free energy mix.
The extended service scope of the LTSA includes:
These services ensure safe, reliable operation of the installed assets throughout their full lifecycle and align with Sweden’s long-term energy-security goals.
Sweden operates one of the world’s most advanced low-emission electricity systems, powered primarily by hydropower, wind energy and nuclear power. Nuclear plants such as Forsmark and Ringhals provide essential baseload stability and support the continued electrification of energy-intensive industries.
Key facts at a glance