After being shortlisted in 2024, Rolls-Royce SMR progressed through a detailed assessment and will now work with Vattenfall in the final technology selection phase. The process could initially result in the delivery of three small modular reactors (SMRs).

This development reflects Rolls-Royce SMR’s modular approach to delivering proven nuclear technology and follows recent successes in the United Kingdom and the Czech Republic.

Chris Cholerton, Rolls-Royce SMR Chief Executive, said: “We are extremely proud that Vattenfall has selected Rolls-Royce SMR as one of the final two nuclear technologies in this highly competitive process. Today’s announcement builds on the positive momentum after Rolls-Royce SMR was selected as preferred bidder by Great British Energy – Nuclear to provide the UK’s first SMRs, and by CEZ to deploy up to 3GW of electricity in the Czech Republic. We look forward to working closely with Vattenfall during this final stage of their process and further strengthening the UK-Sweden collaboration on clean energy.”

Sweden is expected to require an additional 100–250 TWh of electricity over the next 25 years, with nuclear energy set to play a central role in meeting that demand. Vattenfall has identified the Ringhals site on the Värö Peninsula, already home to a nuclear station, as the focus for the first SMRs.

Each Rolls-Royce SMR will be factory-built and capable of producing 470 MWe of low-carbon electricity—sufficient to power one million homes for more than six decades.