Renewable energy groups are asking a federal court to restart Pentagon reviews of wind projects, warning that up to $50 billion of investment could be at risk, according to multiple media reports on Friday.
Nine regional renewable energy organizations requested a preliminary injunction requiring the Defense Department to resume processing project reviews while the broader legal challenge proceeds in court.
The groups said delays at the Pentagon have prevented developers from advancing new projects, creating what they described as a near-complete standstill for utility-scale wind development across the country.
According to court filings, over 100 proposed wind farms across 25 states have been affected by the Pentagon's review delays.
Developers cannot begin construction without federal aviation approvals, a process that depends on Pentagon assessments of whether turbines could interfere with military radar systems or flight operations.
The lawsuit said project reviews previously moved through a predictable process, often reaching a conclusion within months. Projects that raised military concerns typically resolved issues through mitigation measures and continued development.
Developers began encountering growing delays last year, according to the filing, and the situation worsened in April when Pentagon staff reportedly stopped working on wind applications and canceled meetings with companies.
Industry representatives said some projects now risk missing deadlines tied to federal tax incentives, while others could face cancellation if the review process remains stalled.
The dispute adds to a series of actions taken by the Trump administration against the wind sector. President Donald Trump halted new wind approvals on federal lands and waters after taking office and has repeatedly criticized wind energy development.
Federal courts have pushed back against some of those measures, allowing five offshore wind projects to continue despite stop-work orders.
The lawsuit said 41 of the affected projects are located in Texas, while about 29 gigawatts of proposed wind capacity still await Pentagon review, compared with roughly 15 GW that have already secured Federal Aviation Administration approval.
The US Department of War did not immediately respond to' requests for comment.