The shadow energy secretary Greg Clark has said that the UK faces a 'horror show' over energy supplies. Mr Clark said that consumers face a combination of price rises and fears that supplies might be disrupted in the coming years and that the government should support the deployment of clean coal technology.
His comments came as the energy watchdog, Ofgem, warned that UK consumers faced potentially steep price rises in their gas and electricity bills as supplies become more volatile.
In a review of Britain's energy market, Ofgem said an investment of up to £200 billion is needed to secure supplies and meet environmental targets.
It lists four possible scenarios for the future and in one - which forsees a global economic recovery along with missed renewable and carbon targets - Ofgem warned prices could surge by more than 60% by 2016 before falling back.
Ofgem said that consumers should expect price increases of between 14 and 23% by 2020.