The next major renewable energy permitting fight is about whether a federal review process can be paused indefinitely.

In Renewable Northwest v. Hegseth, renewable energy trade associations and wind developers are challenging what they describe as the Department of Defense’s nationwide “wind freeze” on routine reviews of land-based wind projects. Plaintiffs' core claim is straightforward: DoD allegedly stopped completing the national-security compatibility reviews that the Federal Aviation Administration needs before issuing key airspace determinations for utility-scale wind projects.

Federal law requires DoD’s Clearinghouse to coordinate review of energy projects referred through the FAA process, conduct a preliminary review within 75 days, identify feasible mitigation, and use a process designed to protect military readiness while allowing compatible energy projects to move forward. DoD’s own regulations likewise state that renewable energy development and commercial-grid resiliency should move forward while adverse impacts on military operations are minimized or mitigated. That is why the case is not merely a permitting dispute. It tests the boundary between legitimate national-security review and allegedly unlawful administrative delay.

The plaintiffs filed suit on May 31, moved for preliminary relief in June, amended their complaint later that month, and are now litigating against DoD’s motion to dismiss. A coalition of 19 attorneys general has moved to intervene, citing state interests in energy supply, reliability, emissions reduction, jobs, and tax revenue. Oral argument is scheduled for August 4, 2026.

For the renewable energy industry, the implications are immediate. The challenged freeze allegedly affects at least 106 land-based wind projects totaling more than 29,000 megawatts. Delays at this stage can ripple through power purchase agreements, tax-credit planning, interconnection timelines, construction windows, real estate rights, turbine procurement, financing commitments, insurance, and local permitting.