Pentagon Goes Silent on 165 Wind Projects, Freezing 30 Gigawatts of U.S. Energy

The Trump administration has found a way to stall wind energy development without issuing a formal ban. The Defense Department has stopped responding to approval requests from wind energy developers, leaving 165 onshore wind projects frozen across the United States.

The projects represent roughly 30 gigawatts of generating capacity, enough to power approximately 15 million American homes.

A Freeze Without a Ban

The Pentagon’s silence is not accidental. Developers need Defense Department sign-off to confirm their projects will not interfere with military radar systems. That review process, once considered routine, has now ground to a halt.

Of the 165 stalled projects, approximately 35 have completed negotiations and are simply waiting for the Pentagon’s signature. Another 30 received verbal approval but cannot get it in writing. 50 more are stuck mid-negotiation with no path forward, and 50 others were previously flagged as low-risk but remain frozen anyway.

Jason Grumet, president of the American Clean Power Association, said the Pentagon is sitting on unsigned mitigation agreements that would resolve any technical radar concerns. Those agreements have reportedly been piling up since August 2025.

National Security, or Something Else

The Defense Department’s stated reason for the delays is radar interference. Military officials argue that large wind turbines with rotating blades can create unwanted signals that disrupt radar systems near military installations.

However, federal agencies and the wind industry have been working on this exact problem for nearly two decades. A 2024 Department of Energy report to Congress stated that radar interference from wind turbines had been managed effectively through established mitigation techniques, and that military missions had continued “without significant impacts.”

Several of the frozen projects had already gone through Pentagon review and received approval under the prior administration. The fact that the same projects are now being reconsidered has raised questions about whether national security is the true driver.

Time Is Running Out for Developers

The freeze arrives at a critical moment. Under current law, wind projects must begin physical construction by July 4, 2026, to qualify for federal tax credits. Projects that cannot get Pentagon authorization cannot break ground, and projects that miss the deadline lose access to significant federal incentives.

The American Clean Power Association has warned that the combination of Defense Department delays, new Interior Department review requirements, and tightened tax credit rules is creating pressure from multiple directions at once.

Courts have blocked several of the administration’s other renewable energy restrictions. In April 2026, a federal judge in Massachusetts issued a preliminary injunction halting five separate directives that had frozen wind and solar permitting across federal agencies. But that ruling does not cover the Pentagon’s approval freeze, which operates through a different process.

What Comes Next

Legal challenges to the broader wind permitting freeze are continuing through the courts. But the Defense Department’s silence falls outside the scope of the rulings issued so far, leaving developers with few immediate options.

The American Clean Power Association continues to push for the Pentagon to sign the backlogged mitigation agreements. Without those signatures, tens of thousands of construction jobs and billions in clean energy investment remain on hold.

References:

• Trump administration cites national security to widen clampdown on wind farms
• Trump administration cites national security to halt US wind farm projects
• Federal Court Halts Wind and Solar Permitting Freeze