The cancellation is Trump’s latest move against renewable energy, which the US president has dismissed a ‘scam’.

The administration of United States President Donald Trump has moved to cancel $679m in federal funding for offshore wind projects, in its latest salvo against renewable energy.

The move on Friday is set to affect 12 offshore projects, including a $427m project in California, as Trump pushes to deregulate and re-prioritise fossil fuels.

In a statement, Transportation Secretary Sean Duffy said the funding was a waste of money “that could otherwise go towards revitalising America’s maritime industry”.

“Thanks to President Trump, we are prioritising real infrastructure improvements over fantasy wind projects that cost much and offer little,” he said.

The funding had been awarded under the administration of former President Joe Biden as part of a wider pivot towards green energy.

Among the cancellations was funding for The Humboldt Bay project, which was meant to be the first offshore wind terminal on the Pacific coast.

A spokesperson for California Governor Gavin Newsom, who has emerged as a leading state opponent to Trump, criticised the action as an example of the administration “assaulting clean energy and infrastructure projects – hurting business and killing jobs in rural areas, and ceding our economic future to China”.

The cuts include a $47m grant for an offshore wind logistics and manufacturing hub near the Port of Baltimore in Maryland, as well as $48m awarded in 2022 for an offshore wind terminal project near New York’s Staten Island.

Also cut was $33m for a port project in Salem, Massachusetts, to redevelop a vacant industrial facility for offshore wind projects.

In a statement, Massachusetts Governor Maura Healey said cancelling the Salem grant will cost 800 construction workers their jobs.

“The real waste here is the Trump administration cancelling tens of millions of dollars for a project that is already under way to increase our energy supply,” she said.

The latest trimming comes after the Trump administration abruptly halted construction of a nearly complete wind farm off the coast of Rhode Island and Connecticut. The Department of the Interior said the move was necessary to address national security concerns, without providing further details.

In early August, the Interior Department also cancelled a major wind farm in Idaho, which had been approved in the final days of Biden’s presidency.

Multiple federal agencies, including the Departments of Defense, Energy and Commerce, said they are reviewing offshore wind farms approved by the Biden administration along the Atlantic coast.

Trump has regularly lashed out at green energy, and particularly wind power, calling it an ugly and expensive form of energy that “smart” countries do not use.

Yet, foreign allies and rivals alike have increasingly embraced renewable energy in an effort to slow the ravages of climate change. China, for instance, has invested heavily in solar and wind energy and has become a leading source for wind turbine parts.

Critics have said Trump’s approach will set the US back behind its competitors.

Last week, as US electricity prices rose at more than twice the rate of inflation, Trump falsely blamed renewable power for the skyrocketing prices, calling the industry a “scam”.

On Tuesday, he pledged not to move forward with any wind power projects.

“We’re not allowing any windmills to go up unless there’s a legal situation where somebody committed to it a long time ago,” Trump said at a cabinet meeting.