David Cameron has confirmed the future of UK energy is likely to be dominated by gas and nuclear. Speaking at the Institute of Civil Engineering on national infrastructure he said his Government was planning a “bold transformation”, which would suit investors looking for certainty.

The energy industry has been begging for more certainty around future new build for months. The Prime Minister promised his support to investors: “I can confirm our intention to work with the private sector to deliver the new plants that companies would like to build between now and 2030.”

Following this weekend’s news that gas plants can pollute at the same set level for 33 years, the emissions performance standard (EPS) governing new gas-fired power stations was set at 450g/kWh through to 2045.

Despite anger from environmental groups the Prime Minister said new gas plant was essential following the last Labour Government: “This is the problem we inherited. We’re powering our country through an out-of-date, inefficient grid and ageing, polluting power stations.”

He added: “Gas power will continue to be absolutely vital for our electricity system – and we will work with industry to develop a new gas generation strategy that draws in investment and secures electricity supply.”

He also gave his backing to new nuclear which he said he was “convinced” the UK should be building.