Why It Matters
A coalition of Democratic state attorneys general is mounting a legal challenge to the Trump administration’s suspension of onshore wind development, arguing the freeze contradicts federal energy policy and stalls billions in renewable energy investment across multiple states.
What Happened
Eighteen states and the District of Columbia moved to intervene in a lawsuit filed by wind industry companies against the Department of Defense, challenging the federal government’s halt of new wind projects. The Department of Defense ceased signing security review agreements and communicating with wind developers in August 2025, effectively freezing all new onshore wind proposals pending federal approval.
Wind companies and state officials contend the freeze violates routine national security review procedures. Turbine projects taller than 200 feet require approval from both the Federal Aviation Administration and the Department of Defense to address aviation and military readiness concerns—a standard process the Trump administration has now suspended.
Washington state Attorney General Nick Brown said the action undermines energy security: “The federal government claims we’re in an energy emergency and yet unlawfully stands in the way of projects seeking to harness an excellent renewable source of energy—wind.”
President Trump signaled his position on wind energy earlier this year, stating in March: “I’m proudly telling you that we’re going to try and have no windmills built in the United States.”
By the Numbers
18 states intervening in the lawsuit against the Department of Defense freeze
155+ onshore wind projects halted nationwide, according to the American Clean Power Association
5 wind projects in Washington state stuck in limacy review
1,600+ megawatts of capacity from Washington state projects unable to proceed
August 2025 — the month the Department of Defense stopped signing agreements with wind developers
Zoom Out
The legal challenge reflects a broader dispute over energy policy under the Trump administration. Federal law requires national security reviews for certain energy infrastructure, but state and industry figures argue the suspension of routine review processes amounts to an effective ban rather than a legitimate security measure. Similar conflicts have emerged in other policy areas, with states challenging federal actions they view as exceeding executive authority or undermining established regulatory frameworks.
What’s Next
The lawsuit will proceed through federal court, where judges will weigh whether the Department of Defense’s communication halt constitutes an unlawful freeze or a legitimate exercise of national security authority. The outcome will determine whether the 155+ stalled projects can resume the review process or remain indefinitely suspended.