DoD Blocks 165 Onshore Wind Projects Over Security Claims

*TL;DR: The Department of Defense has paused approvals for about 165 onshore wind projects on private land, invoking national security concerns and leaving dozens of farms in limbo.

The move marks the most extensive federal intervention in U.S. onshore wind development since the Trump administration began questioning renewable projects on security grounds. Developers report that routine clearance—normally a matter of days—has stalled indefinitely.

The Defense Department’s review process checks whether turbine blades interfere with military radar. Typically, developers pay a fee for the army to adjust radar filters, and projects far from bases receive a quick “no‑risk” rating. In this case, the department has halted the process for a broad set of projects, regardless of prior risk assessments.

Thirty‑five wind farms that completed negotiations are waiting for final sign‑off. An additional 30 projects that received verbal approval are still awaiting written confirmation. Fifty projects remain in active negotiations, and another fifty, previously considered risk‑free, now face shutdown orders.

Developers say the slowdown began in August 2025. They have missed expected communications, had scheduled meetings cancelled without rescheduling, and received notices that the department stopped processing their applications. The American Clean Power Association, which tracks the industry, confirmed the numbers and described the pause as a “major escalation” in the administration’s stance toward renewable energy.

The immediate impact is a delay in bringing new clean‑energy capacity online. Each stalled project represents potential megawatts of generation that could reduce reliance on fossil fuels and create construction jobs. The uncertainty also raises financing risks; investors may pull back while approvals remain pending.

Industry analysts note that the DoD’s actions could set a precedent for future security reviews of renewable infrastructure, potentially expanding the scope of military oversight beyond traditional installations. If the department maintains its stance, developers may need to redesign turbine layouts or invest in additional radar‑mitigation technology, increasing costs.

What to watch next: whether the Defense Department will issue a timeline for resuming reviews, and how Congress might respond to the growing tension between national security protocols and the nation’s clean‑energy goals.