Millions of households pay £170 more for energy due to Tory subsidy cuts

Effect of cuts to efficiency subsidies highlighted as government struggles to finalise energy strategy

Millions of households are paying an extra 170 in bills because of cuts to subsidies for measures such as home insulation, according to analysis that comes during an impasse on the government's energy strategy.

One cabinet source said it was now likely the strategy - designed to tackle rising bills and boost energy security - would not be ready this week, amid cabinet splits over funding for nuclear power and the relaxing of planning rules concerning onshore wind.