Studsvik Applies to Build Up to 1,400 MW of New Nuclear Capacity at Nyköping Site
Studsvik (ENS Corporate Member) has submitted an application to the Swedish Government to establish between 600 and 1,400 MWe of new nuclear capacity at and around its existing site in Nyköping Municipality, covering two to four light water-cooled and light water-moderated nuclear reactors.
Subject to obtaining permits, the company is targeting commercial operation of the first units in the 2030s.
The application was handed to Johan Britz, acting Minister for Climate and the Environment, by Studsvik’s President and CEO Karl Thedéen and Christian Sjölander, Head of New-Build Projects.
“Sweden has decided to build new nuclear power, and the country needs new firm, fossil-free capacity on a scale not seen in a generation. Few sites in the country are as ready to contribute as Nyköping,”
said Karl Thedéen.
The Nyköping project is part of Studsvik’s ReFirm SMR programme, which also targets sites at Valdemarsvik, Motala and Karlshamn. Read the full Studsvik Press Release.
This is the second application submitted by the Studsvik Group this spring, following Kärnfull Next’s submission for 1,200-1,600 MW at Valdemarsvik in March 2026, Sweden’s first application under the country’s new Act on Government Approval of Nuclear Facilities. Find out more in our latest newsletter.
Sweden currently operates three nuclear power plants with six nuclear reactors, providing around 30% of its electricity.
In November 2023, the government announced plans to construct the equivalent of ten new reactors, including SMRs, by 2045 and has since launched a SEK 220 billion financing facility to underwrite around 5,000 MW of new capacity.
In June 2023, Sweden also replaced its previous ‘100% renewable’ electricity target with ‘100% fossil-free’, signalling a clear political commitment to nuclear energy’s long-term role in the country’s energy mix.
This momentum aligns with broader European ambitions. On 10 March 2026, the European Commission published its Strategy for the development and deployment of SMRs in Europe, targeting delivery of first-of-a-kind SMR installations by the early 2030s.
