The CCC's second report found that British household energy bills could climb by £100 ($162) by 2020 to underpin the development of low-carbon technologies.

But "unabated" reliance on gas-fired power stations would drive up annual domestic electricity bills by as much as £600 if the country did not transition away from fossil fuels over the next 20 years.

"Our analysis confirms the benefits of adopting a strategy which invests in low-carbon technologies," said CCC chairman Lord Deben.

The