Great British Energy–Nuclear selected engineering consultancy Arup to provide early-phase foundation engineering and design support for the Wylfa nuclear power plant on the island of Anglesey. Arup's work covers ground investigation, geotechnical assessment, and foundation design for the three 470 MWe Rolls-Royce SMR units. The plant will supply up to 1.5 GW of electricity. This contract follows the April 2026 GBE-N / Rolls-Royce SMR site design contract and is the first major supply chain appointment for Wylfa.