A huge expansion of wind power, home insulation and “smart” electricity meters are among measures being planned to build the UK’s low-carbon future. Ministers hope their Carbon Transition Plan will help them meet 2020 targets for cutting greenhouse gas emissions and expanding renewable energy. Campaigners say the plan is a chance for the UK to lead on climate change. The government admits consumers will pay more for energy, but believes that overall the economy can benefit. Up to £120m will go towards developing the offshore wind power...