Britain's first ever mini nuclear power station in Wales is set to deliver power to millions of homes within a decade. The government has announced that three 'small modular reactors' (SMRs) will be built at a new power station in Wylfa, on the coast of Anglesey in North Wales. Designed and made by Rolls-Royce, each small reactor will deliver enough power for 1 million homes, or 3 million in total, for at least 60 years.