Paul Spence tells Lib Dem conference there needs to be more certainty before it will invest in four power stations

The strategy and regulation director for utility EDF said it still needed more assurances from the Coalition government before investing in building four new nuclear power stations in the UK.

Paul Spence told a Liberal Democrat fringe event that more certainty over national energy statements, the mechanism for paying for waste processing, and a floor price for carbon, was required.