Analysis reported by the Daily Mail claims that Energy Secretary Ed Miliband's Net Zero policies have failed to prevent electricity costs from soaring during hot weather, with prices rising more than five-fold during last month's heatwave. The article frames this as evidence of Britain's growing dependence on expensive foreign energy imports, at a time when the country faces another spell of high temperatures and potentially larger price increases ahead.

According to the piece, renewable sources such as wind and solar could not generate enough power to meet surging demand on 26 June, as households and offices switched on air conditioning and fans, while much of the UK's gas power fleet was also unavailable, forcing reliance on costly imports from Europe. Critics cited by the paper called Labour's ban on new North Sea drilling "madness", arguing it deepens import dependence. The findings are said to add pressure on Andy Burnham, reportedly expected to become the next Prime Minister and said to be considering appointing Mr Miliband as Chancellor — a promotion that senior figures in the Trump administration reportedly warned against.