Interior Asks a Court for Permission to Reopen Revolution Wind's Approval — For a Farm Already Sending Power to the Grid

The short version

On 9 October 2026, the Department of Justice — representing the Department of the Interior and BOEM — asked the US District Court for the District of Columbia to remand BOEM's 17 November 2023 approval of Revolution Wind's Construction and Operations Plan (COP) so the agency can reassess compliance with the Outer Continental Shelf Lands Act (OCSLA). The government also moved for summary judgment in its favour on the plaintiffs' claims concerning the National Marine Fisheries Service and the US Army Corps of Engineers, in Green Oceans v. US Department of the Interior (No. 1:24-cv-00141, Judge Royce Lamberth).

That is the reported substance of the 9 October filing. What it is not, on the available record, is a revocation, a suspension, or a new stop-work order. No ruling had been confirmed at the time of reporting, and the motion by itself does not interrupt commissioning. Readers should treat the characterisation of the filing as a "cross-motion" (HMT News; offshoreWIND.biz describes it as a summary-judgment request plus remand on OCSLA) as consistent in substance, though the precise docket style has not been verified from a primary court document here.

Why it matters anyway: this is the third federal attempt to disturb a project that is now physically finished — 65 turbines installed as of September 2026, power flowing to the New England grid since March, full 704 MW commercial operation expected shortly — and the first directed at the legal foundation of the approval rather than at the works themselves.

Where the project actually stands

Execution was not smooth. Damage to an installation-vessel leg in June 2025 cost roughly five weeks, and onshore substation delays pushed COD from 2025 into H2 2026. By August 2025 the project was about 80% complete with 45 turbines in; by Q1 2026 around 94% with 60 of 65 installed; by 20 August 2026 over 95% with 61 up. The same project therefore carries two very different kinds of risk today: essentially none in construction, and a live, unresolved one in the legal status of its operating authorisation.

The procedural history is the story

The litigation has been running since January 2024, when Green Oceans and a large group of individual and entity plaintiffs sued DOI, BOEM, NMFS, USACE and officials (counsel: Marzulla Law). Claims spanned the APA, NEPA, ESA, MMPA, Migratory Bird Treaty Act, Coastal Zone Management Act, National Historic Preservation Act, OCSLA and Clean Water Act.

The trajectory of those claims matters for reading the 9 October motion:

• 1 April 2025: the court dismissed the OCSLA, MBTA and CZMA claims outright, and dismissed several other claims as to some plaintiffs. OCSLA was, in other words, already knocked out once.
• August–September 2025: BOEM issued a Director's Order halting ongoing activities at ~80% completion; a preliminary injunction on 22 September 2025 allowed work to resume.
• 22 December 2025: a second Director's Order suspended all activities for 90 days citing national security, with seven turbines remaining; the court blocked it on 12 January 2026.
• September 2025: plaintiffs moved for summary judgment seeking vacatur and remand of the federal approvals.
• 9 October 2026: the government now seeks remand of the COP approval itself on OCSLA grounds.

The awkward point: the administration is asking the court to reopen, on OCSLA, an approval whose OCSLA claim it successfully had dismissed 18 months earlier. That is a political and administrative decision dressed in litigation clothing — a way for Interior to revisit the COP without issuing a fourth order that would very likely meet the same preliminary-injunction fate as the first two. The related Revolution Wind, LLC v. Burgum litigation over the stop-work orders gives the developer its own parallel channel to challenge any fresh suspension.

Why OCSLA, and why remand is not the same as vacatur

The 2023 decision rested on OCSLA §8(p)(4), the provision under which BOEM attaches terms and conditions to renewable-energy leases and COP approvals — mitigation measures, fishery protections, navigational conditions and so on. The plaintiffs' theory, in essence, is that BOEM's conditions were inadequate or that the agency misread its §8(p)(4) obligations. Interior now says it wants to go back and check.

For operators, the distinction between remand and vacatur is the whole ballgame, and it is worth stating plainly because it is routinely blurred in commentary:

• Remand sends the decision back to the agency to reconsider, typically with the approval left in place in the interim unless the court orders otherwise. The project keeps operating; the agency re-runs part of its analysis.
• Vacatur would strip the authorisation, leaving the project operating on borrowed time and forcing a fresh COP process — with revenue at stake for a 704 MW asset already delivering into two state markets.

Nothing in the reported filing suggests Interior is seeking to stop the machines. It is seeking to stop the court from deciding the remaining claims, by conceding the point on OCSLA and taking the question back in-house. Whether Judge Lamberth accepts that framing, and on what conditions, is now the key variable.

What this means beyond one project

The instinct is to file this under "US offshore wind politics, again." That understates it. Three implications deserve attention:

1. Completion is no longer a safe harbour. The standard industry assumption has been that once a project is built, energised and delivering under a fully executed PPA, legal challenge becomes moot in practice and manageable in theory. Revolution Wind tests that. A COP approval can be reopened after the asset is in the water. For lenders, tax-equity investors and offtakers, that lengthens the tail of regulatory risk far beyond COD — which is precisely the point Turn Forward's Hillary Bright made, and NOIA's Erik Milito made more diplomatically: "predictable regulatory processes and timely decisions are important for offshore energy development of all kinds."

2. Permitting reform is the real trade. Both industry bodies landed on the same ask: comprehensive permitting reform, with NOIA naming the Bipartisan American Affordability and Jobs Act. That is a telling convergence — an offshore-wind advocacy group and an oil-and-gas-aligned trade association both want statutory process certainty, because the current framework lets any administration reopen any approval through litigation. The lesson is generic to energy infrastructure, not specific to wind.

3. The cost lands on ratepayers and state procurement. 400 MW to Rhode Island and 304 MW to Connecticut under long-term contracts means two states have already built their supply planning around this output. Every month of legal uncertainty around the COP is a month those states cannot treat the capacity as firm. For the wider offshore wind pipeline, the deterrent is blunt: if a finished, commissioned project can be remanded, the risk premium on the next one is higher, and the marginal investor may simply go elsewhere.

What to watch

• Whether the court grants remand and on what terms — specifically whether the approval stays in force through the remand, and whether any milestones or deadlines are attached.
• Whether Interior's OCSLA reassessment becomes a vehicle for new conditions on an operating farm — curtailment windows, seasonal shutdowns, fisheries mitigation — rather than a paper exercise.
• Whether a vacatur motion follows. A remand granted now does not preclude plaintiffs pressing for vacatur later if they dislike the agency's re-review.
• Ørsted's disclosure. The developer declined to comment on the filing; its Q3 reporting and any change to the stated COD language is the cleanest read on management's own assessment of exposure.

Analysis and estimates above are the author's; factual statements on the filing, project status and procedural history are drawn from the sources listed.

References

• offshoreWIND.biz, "Trump Administration Seeks Remand of COP Approval for Offshore Wind Farm Now in Final Commissioning Stage," 14 October 2026.
• HMT News, "US seeks Revolution Wind approval review as commissioning continues."
• BOEM, Revolution Wind project page (COP approval 17 November 2023; ROD and stop-work order records).
• Civil Rights Litigation Clearinghouse, Green Oceans v. US Department of the Interior, No. 1:24-cv-00141 (D.D.C.).
• offshoreWIND.biz, "US Gets New Offshore Wind Farm as All Turbines Installed at 704 MW Revolution Wind," 18 September 2026.
• offshoreWIND.biz, "Three Ørsted Offshore Wind Farms Set for Full Commissioning in 2026," 20 August 2026.