The wind farms could generate 30 gigawatts, enough to power 15 million homes.

Letters sent to developers in early April said the agency was reviewing its processes for evaluating energy projects’ impact on national security.

The moves represent a dramatic escalation of the administration’s effort to shut down wind energy in the US, reaching for developments on private lands as well as public ones.

President Donald Trump has a particular animosity towards wind farms. He has called them the “worst form of energy” and said his “goal is to not let any windmill be built.”

Since its second term in office, the Trump administration has repeatedly tried to shut down work on several offshore wind sites in areas administered by the Bureau of Ocean Energy Management, also citing national security concerns, as well as other renewable energy projects on federal lands. Some of these actions have been thwarted in federal courts.

“This is so unprecedented,” said Jason Grumet, chief executive of the ACP. “The fact the administration is telling private landowners they’re not allowed to pursue economic activity and generate value from their property is hard to reconcile with conservative values.”

The administration has recently started refunding offshore wind leases in exchange for investments in fossil fuels, such as a $1 billion deal with TotalEnergies in March.

“The Trump administration’s attempts to block wind projects keep getting struck down in court, so it’s reaching for ever more extreme and absurd methods,” said Kit Kennedy, managing director for power at NRDC.

The DoD did not respond to a request for comment.

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