Performance in the first half of the year for British electricity and gas utility company National Grid is in line with the company’s view, it said on Thursday. In its pre-close update for the six months ended September 30, the National Grid said that in addition to the group’s performance being in line with expectations, underlying earnings per share are expected to be weighted to the second half of the year. In UK electricity transmission and UK electricity distribution, the company anticipates operating profit to be broadly evenly split across the year. It expects an additional £70 million …