Small Modular Reactor Programme: Site Allocation

Michael Shanks Excerpts

Thursday 13th November 2025 Written Statements

[The Minister for Energy (Michael Shanks)]

Today I am pleased to inform the House that the Government have selected Wylfa in north Wales as the site to host the Government-backed small modular reactor programme.

Thanks to record investment the Government are making in our nuclear power sector, Britain is entering a golden age of new nuclear. The Government’s SMR programme, led by Great British Energy-Nuclear, is putting the UK at the forefront of nuclear innovation, creating long-term economic benefits and good jobs in local communities, while opening up significant export opportunities. At the spending review the Chancellor committed over £2.5 billion to support the UK’s ambition to lead the global race for SMRs, and announced that following a rigorous selection process GBE-N had identified Rolls-Royce SMR as preferred bidder, subject to final Government approvals and contract signature.

Following careful consideration, Wylfa, on the north coast of Anglesey (Ynys Môn), is the Government’s chosen location for GBE-N’s SMR project.

Wylfa is one of the UK’s best nuclear sites, with a proud legacy and the capacity to host a fleet of SMRs. The initial project will see the construction of up to three Rolls-Royce SMR units, with GBE-N assessing the site to have the potential to host up to eight units, although this would be subject to future policy and funding decisions.

This decision will deliver once-in-a-generation opportunities for both Wales and communities across the country. For communities in Wales, building SMRs at Wylfa will create up to 3,000 new high skilled jobs at peak construction, attracting long-term investment and delivering an essential part of the UK’s energy future—while supporting thousands more jobs across Britain’s world-leading supply chain.

GBE-N looks forward to working with Welsh communities as this exciting project develops, with work set to start at the site in 2026. We will be progressing the SMR project across this Parliament and working towards a final investment decision.

But progress on SMRs alone is not the end of the Government’s ambition. We have taken decisive action by making the biggest investment in new nuclear for a generation at the spending review, with Sizewell C having subsequently reached a final investment decision. On top of this, we have agreed a major expansion of US-UK collaboration, as we progress a new framework so Britain can attract the best nuclear innovation from around the world. We are also spurring the modernisation of nuclear regulation through the ongoing Nuclear Regulatory Taskforce.

Large-scale nuclear power stations will continue to make a vital contribution in our home-grown clean energy mix, complementing SMRs. Therefore, to pursue the option of a further large-scale reactor project beyond the current deployments at Hinkley Point C and the recently confirmed Sizewell C, the Government are announcing that Great British Energy-Nuclear has been tasked with identifying suitable sites that could potentially host such a project. GBE-N will report back by autumn 2026 on potential sites to inform future decisions at SR27 and beyond.

In any study, GBE-N would also be asked to look at site opportunities in Scotland, expanding on its commission to assess Scotland’s capability for new nuclear power stations, including in areas that have benefited from nuclear in the past. This would seek to build on Scotland’s rich nuclear heritage with the Government believing new nuclear could bring significant benefits in communities there.

Finally, I am pleased to confirm to the House that the former nuclear power site at Oldbury in Gloucestershire, which is also owned by GBE-N, remains under active consideration for future projects. GBE-N will continue early work to evaluate the Oldbury site to ensure it is ready for future deployment as part of our broad nuclear programme, including the potential to support any privately-led projects that might be developed by the nuclear industry. Our intent would be to utilise the site as soon as is possible and GBE-N looks forward to ongoing positive engagement with communities around Oldbury.

This Government’s commitment to nuclear energy is unwavering—on SMRs, on advanced reactors and on Sizewell C we are making rapid progress towards delivering long-term energy security for the UK. We will continue to act decisively, invest ambitiously, and work with communities, industry and international partners to deliver this golden era of new nuclear—and with it jobs, investment and growth right across the country.

[HCWS1056]