The government has been accused of under-estimating the cost to customers of its new financing support mechanism for nuclear power, which could add £100 onto annual bills if ex-prime minister Boris Johnson’s pledge to roll out a new fleet of the plants is honoured. At a meeting of the All-Party Parliamentary Group on Energy Costs, held at the House of Commons on Wednesday (23 November), University of Greenwich emeritus professor of energy Steve Thomas criticised the use of the Regulated Asset Base (RAB) for nuclear projects.