The Danish renewable energy company Ørsted filed a legal challenge on Friday against the Trump administration's suspension of the Revolution Wind offshore wind project, reigniting a high-stakes dispute over federal authority, contractual rights, and the future of American offshore energy development.
The filing came less than two weeks after the Interior Department suspended leases for five major offshore wind projects on December 22, citing unspecified national security concerns.
Revolution Wind, a joint venture between Ørsted and Global Infrastructure Partners' Skyborn Renewables, filed a supplemental complaint in the U.S. District Court for the District of Columbia, followed by a motion seeking a preliminary injunction to block enforcement of the suspension order.
The project's advanced construction stage underscores the stakes of this dispute. Revolution Wind is 87 percent complete, with all offshore foundations installed and 58 of 65 wind turbines already in place.
The 704-megawatt facility was expected to begin delivering power to Connecticut and Rhode Island households as early as January 2026, fulfilling power purchase agreements that commit to supplying electricity to more than 350,000 homes.
Ørsted contends that the suspension violates applicable law and inflicts immediate, substantial damage on a project that has already undergone exhaustive federal and state review. The company emphasizes that Revolution Wind obtained all required permits in 2023 following a nine-year evaluation process, which included extensive consultation with the U.S.
Department of Defense, the Department of the Air Force, the U.S. Coast Guard, the Army Corps of Engineers, and the National Marine Fisheries Service. These consultations produced a formal agreement between the Department of Defense and the Department of the Air Force outlining specific mitigation measures to address radar interference concerns.
The financial commitment at risk is substantial. Ørsted has invested and committed approximately $5 billion to the project, according to its court filings.
Beyond shareholder losses, the suspension threatens the livelihoods of supply chain workers and threatens power availability commitments to utilities and households.
This legal action marks the second attempt by the Trump administration to block Revolution Wind. In August 2025, the Bureau of Ocean Energy Management issued a similar halt order, which a federal judge overturned in September by granting a preliminary injunction that allowed work to resume.
That judicial precedent now weighs in Ørsted's favor as it seeks to challenge the December suspension.
The December suspension order from the Interior Department's Bureau of Ocean Energy Management cited vague national security risks identified in classified reports from the Department of War, as Interior Secretary Doug Burgum stated.
The administration suggested that offshore wind turbines might interfere with radar systems used to track moving targets, though it provided no project-specific justification or technical detail.
This rationale conflicts sharply with what Ørsted has already achieved through the permitting process. The company negotiated radar mitigation measures with the Department of Defense nearly three years ago, resulting in a fully executed formal agreement.
For Ørsted's legal team, this creates a doctrine known as "agency estoppel"—the argument that the government cannot reverse course on its own prior determination without providing concrete evidence of newly discovered risks.
The suspension represents the latest escalation in Trump's campaign against offshore wind development. On his first day in office in January 2025, Trump issued a Presidential Memorandum indefinitely halting all federal approvals for wind energy projects.
In December 2025, shortly before announcing the lease suspension, a federal court struck down that blanket prohibition as "arbitrary and capricious and contrary to law." The December suspension appears designed to achieve through a narrower executive mechanism what the courts blocked through broader policy.
Ørsted is not alone in challenging the suspension. Dominion Energy, which is developing the larger Coastal Virginia Offshore Wind project off Virginia Beach, filed a parallel federal lawsuit on December 23, characterizing the BOEM order as "arbitrary and capricious," lacking a rational basis, and contradicting BOEM's own prior approvals.
Dominion has invested approximately $9 billion in its project, which is also advanced in construction.
The legal battle centers on interpretation of the Outer Continental Shelf Lands Act (OCSLA) and the Administrative Procedure Act (APA). Section 10 of OCSLA traditionally grants the government authority to suspend leases, but that power has historically been constrained to cases involving immediate environmental or physical threats.
Ørsted's legal team contends that invoking broad "national security" concerns without project-specific findings represents an abuse of administrative discretion.
To prevail, Ørsted must satisfy the federal test for preliminary injunctive relief. First, the company must demonstrate a strong likelihood of success on the merits—that the government's action violates OCSLA, the APA, or constitutional principles limiting executive authority. Second, Ørsted must show that the project faces irreparable harm that cannot be remedied later through monetary damages.
Third, the balance of equities must favor the company, meaning its injury outweighs any harm to the government from allowing continued work during litigation. Fourth, Ørsted must connect its request to the broader public interest, arguing that continued construction protects state power purchase agreements and grid stability.
The government will likely counter by emphasizing presidential deference in national security matters, arguing that courts should refrain from second-guessing executive risk assessments.
It may contend that the permits remain conditional until power generation begins, not merely at construction completion. The administration may also challenge whether Ørsted's injury is truly "irreparable" rather than merely economic and therefore compensable with damages.
The suspension affects nearly 6 gigawatts of offshore wind capacity that was scheduled to enter commercial service within the next two years.
The five suspended projects—Vineyard Wind 1 off Massachusetts, Revolution Wind off Rhode Island and Connecticut, Coastal Virginia Offshore Wind off Virginia, Sunrise Wind off New York, and Empire Wind 1 also off New York—represent years of development investment and are critical to state-level clean energy commitments.
Ørsted's share price rose approximately 4 percent in early European trading following the announcement of the legal challenge, suggesting investor confidence that the company's contractual rights remain defensible.
The outcome of the Revolution Wind case will establish a significant precedent regarding the extent to which federal authorities can intervene in late-stage wind projects that have already completed permitting and secured financing.
Legal analysts anticipate this dispute will test whether the "Major Questions Doctrine"—which constrains executive authority when an agency action carries vast economic or political consequences—applies to offshore energy infrastructure.
Moreover, the dispute raises the specter of broader foreign investment risk.
If the Trump administration's suspension withstands judicial challenge, it signals that even fully permitted, multi-billion-dollar infrastructure projects can be halted retroactively on national security grounds, potentially discouraging future foreign investment in U.S. energy infrastructure.
In the weeks ahead, the federal court will likely schedule hearings on Ørsted's motion for a preliminary injunction, with expedited proceedings expected given the project's advanced stage and the approaching seasonal window for offshore construction.
The ruling in this case will shape not only the fate of Revolution Wind, but the regulatory climate for offshore wind development across the entire United States.
