Winter electricity blackouts risk recedes, says National Grid

Extra power will mean lights will not go out this winter, says firm that operates UK’s electricity transmission networkThe risk of electricity blackouts in Britain this winter has diminished, after the National Grid and the government spent more than £140m on tools designed to guarantee the lights stay on.The Grid’s capacity margin, the cushion between electricity demand and supply, has risen to 6.6%, beating its summer prediction of 5.5%. The buffer zone is also well ahead of