The Conservative election victory has dealt a severe blow to Britain’s green energy industry, campaigners have warned, as the new majority government prepares to scrap crucial subsidies for renewable power; champion the development of polluting shale gas; and make significant cuts to spending.

The renewable industry is most worried about the future of onshore wind farm developments, which the Tories have repeatedly dismissed as an unwanted eyesore despite being cheaper than other forms of green energy.

The party’s manifesto pledges “to halt the spread of onshore wind farms” – and although it is not clear exactly when subsidies for new land-based turbines will be scrapped, an announcement is expected soon.

But the Government’s axe is likely to fall across much of the renewable energy industry, campaigners say. They point to David Cameron’s plan to remove what he in 2013 reportedly called the “green crap” that subsidises renewable power from Britain’s energy bills as evidence of his dislike for alternative energy sources.

“There is nothing good for green energy about the Tories’ election,” said Tom Burke, a former director of Friends of the Earth and now chairman of the E3G sustainable development charity. “They are certainly going to show a lot of hostility to renewables and Britain is going to get left behind.”

Cameron is accused of disliking alternative energy sources (Getty) (Getty Images)

Mr Burke said he was worried the Government could abandon tackling climate change “by stealth” – especially if the Department of Energy and Climate Change (DECC) is scrapped, which he says is a distinct possibility.

It is understood that discussions have taken place in Whitehall in recent months about a range of ways to dramatically cut civil service spending. Hiving off the energy part of DECC into another department, such as Business, Innovation and Skills (BIS), and putting the climate change function into the Department for Environment, Farming and Rural Affairs (Defra) is one option that has been considered – although it is not known how the talks have advanced.

DECC was created under the last Labour government to align the interests of energy provision and the action needed to tackle climate change by putting them under the same roof. Separating the two functions would be a blow to the battle against global warming and, in turn, against the UK renewable energy industry, Mr Burke said.

Even if the department remains, it faces considerable cost-cuts as part of a broader government cull, which may also see the wildlife adviser Natural England merged into the Environment Agency. The Former Deputy Prime Minister leader Nick Clegg said he blocked a Tory plan to merge them in the last government and the proposal is expected to be reconsidered now.

The UK’s renewable energy sector issued a desperate plea yesterday for the new Conservative Government to send an early signal that it was serious about supporting low-carbon energy.

“We are concerned about the future of onshore wind development, and that there is some suggestion the Conservatives are opposed to decarbonising the electricity supply,” RenewableUK deputy chief executive Maf Smith said.

Pictures that show we are killing our planet Show all 21 1 /21 Pictures that show we are killing our planet Pictures that show we are killing our planet Pollution ULSAN, SOUTH KOREA - MARCH 16: A View of the SK Corporation oil refiner on March 16, 2006 in Ulsan, South Korea. The SK Corporation is Asia's leading energy and petrochemical company and South Korea's leading refiner, the fourth largest refiner in Asia and is also the World's second largest single complex oil refinery. Founded in 1962 as South Korea's first oil refiner. (Photo by Chung Sung-Jun/Getty Images) Getty Pictures that show we are killing our planet Plastic pollution Getty Pictures that show we are killing our planet Melting icebergs Getty Pictures that show we are killing our planet Human overpopulation Getty Pictures that show we are killing our planet Sea level rise Getty Pictures that show we are killing our planet Severe drought Getty Pictures that show we are killing our planet Mudslides Getty Pictures that show we are killing our planet Lake shrinking Getty Pictures that show we are killing our planet Food and water crisis caused by drought Getty Pictures that show we are killing our planet Water crisis Getty Pictures that show we are killing our planet Rainforest logging Getty Pictures that show we are killing our planet Habitat destruction Getty Pictures that show we are killing our planet Fracking Getty Pictures that show we are killing our planet Wildfires Getty Pictures that show we are killing our planet Rubbish dump Pope Francis said a 'throwaway culture' was damaging the environment and the world's social fabric Getty Pictures that show we are killing our planet Hunger Getty Pictures that show we are killing our planet Illegal poaching Getty Pictures that show we are killing our planet Unsafe water Getty Pictures that show we are killing our planet Scrap and metal waste Getty Pictures that show we are killing our planet Smog Getty Pictures that show we are killing our planet Oil spill Getty

The industry is concerned that solar, hydro and other low-carbon technologies could see further cuts to financial support – concerns bolstered by recent EU negotiations on green targets. These saw the UK Government fight hard – and successfully – to block European attempts to impose a target for the proportion of energy that should be generated from renewable sources beyond 2020.

Britain is committed to generating 15 per cent of its energy from renewable sources by the end of this decade under a previous EU target and is on course to meet this from existing projects. But by blocking a new EU target there will be no legal requirement for production of electricity from renewable sources beyond 2020.

The new Government says it is committed to long-term and legally binding goals to cut carbon emissions. However, it has consistently emphasised the key role it expects improvements in energy efficiency – as opposed to green energy – to play in hitting those targets. It has also insisted that renewable power – which remains more expensive than fossil-fuel power – must be “cost-effective”.

“The small size of his majority casts doubt upon whether David Cameron is prepared to stand up to sceptical backbenchers and take the action necessary to hit those targets,” said Joss Garman, of the IPPR think tank.

Professor Paul Elkins at University College London told the Carbon Brief website: “The next five years will see a fascinating exercise in how to reconcile seemingly inconsistent energy and climate policy objects: commitment to decarbonisation and the launch of a new shale gas industry; and determination to reduce emissions at least cost, while restricting or ruling out the most cost-effective renewable energy source, onshore wind.”

Candidates: The next Energy Secretary?

Matt Hancock

An ex-energy and business minister, he was criticised for chartering a jet to fly from Aberdeen to London after climate change negotiations.

Amber Rudd

An ex-climate minister, she is regarded as a Green Tory and wants to continue Margaret Thatcher’s legacy of tackling global warming.

Nick Hurd