Renewable Energy Groups Sue Pentagon Over 'De Facto Moratorium' on Wind Farms

A coalition of renewable energy developers has filed a federal lawsuit against the Department of Defense and Defense Secretary Pete Hegseth, seeking to end what they describe as an unlawful "de facto moratorium" on national security reviews for onshore wind farms.[1][2]

The complaint, filed in the U.S. District Court in Oregon, alleges that the Pentagon's inaction has effectively frozen 106 wind projects across 21 states. If these projects remain stalled, the plaintiffs argue, it will jeopardize $47 billion in capital investments and 30 gigawatts of potential electricity capacity.[2][3][5]

The legal dispute centers on the Pentagon's Military Aviation and Installation Assurance Siting Clearinghouse. By statute, this office evaluates proposed energy infrastructure during the Federal Aviation Administration (FAA) permitting process.[4]

The clearinghouse's primary mandate is to ensure that towering wind turbines—which often exceed 500 feet in height—do not create electromagnetic interference with military radar systems, disrupt low-altitude flight training, or compromise base readiness.[4][6]

The plaintiffs, which include Renewable Northwest and the Advanced Power Alliance, claim the Pentagon abruptly altered its standard operating procedures. According to court filings, the military stopped countersigning final mitigation agreements in August 2025.[3]

By April 2026, the lawsuit alleges, the Pentagon had progressively slowed all stages of the review process until transmittals back to the FAA completely ceased.[2][3]

To substantiate their claims of irreparable harm, the renewable groups submitted an independent economic analysis conducted by Charles River Associates alongside their legal filings.[5]

The analysis calculates that the 106 stalled projects represent enough electricity to power millions of homes, and warns that the delays threaten thousands of construction, engineering, and manufacturing jobs across rural America.[2][5]

Industry data corroborates a severe slowdown in the sector. The first quarter of 2026 recorded the lowest volume of new land-based wind power installations since 2018.[5][6]

The Department of Defense has declined to comment directly on the active litigation. However, in prior public statements regarding the backlog, the Pentagon defended its timeline and review procedures.[1][2]

Military officials assert that the clearinghouse is actively evaluating projects, but emphasize that assessing cumulative radar impacts across multiple regions requires complex, time-consuming coordination among various branches of the armed forces.[4][6]

The administrative logjam coincides with the Trump administration's broader, publicly stated opposition to wind energy development.[1]

President Trump has frequently criticized the aesthetics and reliability of wind turbines. Earlier in his term, he issued an executive order attempting to halt federal leasing and permitting for wind projects, though a federal judge subsequently struck down that directive.[2]

While the administration's efforts to curb offshore wind—including buying back federal leases—have been highly visible, this lawsuit indicates that onshore wind development on private land is now encountering similar administrative friction.[1][6]

Late Thursday, the plaintiffs filed an emergency motion asking the federal court to compel the Pentagon to resume its ordinary review transmittals to the FAA while the broader case proceeds.[3]

The legal threshold for the plaintiffs is exceptionally high. Federal courts traditionally grant the executive branch, and specifically the Department of Defense, broad deference on matters involving military readiness and national security.[6]

It remains uncertain whether the judiciary will view the clearinghouse delays as a legitimate national security precaution or an arbitrary administrative blockade designed to execute the administration's energy policy preferences.[6]

With wind power currently generating approximately 10% of the nation's electricity, the resolution of this standoff will have immediate consequences for the U.S. power grid and the $47 billion in capital waiting on the sidelines.[1][5]