National Grid should lose role as electricity system operator, says Ofgem

Regulator says there could be conflict of interest in company also owning energy networks

National Grid could lose its role of keeping Britain's lights on after the energy regulator called for a new and independent electricity system operator to help steer the UK towards its climate targets.

Ofgem has called for National Grid to be stripped of its role after 30 years balancing the electricity grid because the energy company also owns energy networks.