Rolls-Royce SMR and Great British Energy - Nuclear have signed a contract to begin immediate work on three small modular reactors at Wylfa, North Wales. The agreement enables site-specific design and critical component orders, supporting 3,000 local jobs and 5,000 national positions, with up to £599 million available from the National Wealth Fund.
Rolls-Royce SMR and Great British Energy - Nuclear have signed a contract enabling immediate work on the delivery of three Rolls-Royce Small Modular Reactors at Wylfa on Ynys Môn (Anglesey), North Wales, according to an official announcement. The firm contract allows Rolls-Royce SMR to develop its site-specific design and order critical components from the supply chain, following the UK Prime Minister's November 2025 announcement that Wylfa would host the UK's first SMRs.
Rolls-Royce SMR is a UK-based nuclear technology company developing factory-built small modular reactors using proven nuclear technology. Each power plant is designed to generate enough stable low-carbon electricity to power one million homes for over 60 years. The company has multiple commitments in Europe, including an initial three units at Wylfa and up to six units in Czechia.
The project will create 3,000 jobs local to the Wylfa site and an additional 5,000 jobs nationally. Rolls-Royce SMR has successfully applied for a loan of up to £599 million from the National Wealth Fund to support finalisation of the generic design. The contract brings certainty to the UK SMR programme and differentiates Rolls-Royce SMR as the only SMR company with multiple commitments in Europe.
This development matters for the UK nuclear industry, where standardised, factory-built approaches aim to give greater cost and schedule certainty. The project supports energy security by providing clean, homegrown power and reducing reliance on fossil fuels. For the nuclear supply chain, the agreement enables long-term investment and industrial capability growth. Stakeholders including local communities, engineering firms, and component suppliers stand to benefit from the transformational opportunity, with the government positioning nuclear as central to its clean energy mission.
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