On February 11, 2026, as supplemented on June 26, 2026, DeepGreen Cook Inlet SPV, LLC filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to study the feasibility of the DeepGreen Cook Inlet Subsea-Compute & Infrastructure Hub Project (DeepGreen Project or project) to be located in the Upper Cook Inlet, East Foreland Corridor, Kenai Peninsula Borough, Alaska. The sole purpose of a preliminary permit, if issued, is to grant the permit holder priority to file a license application during the permit term. A preliminary permit does not authorize the permit holder to perform any land-disturbing activities or otherwise enter upon lands or waters owned by others without the owners' express permission.

The proposed project would consist of the following: (1) approximately 330-350 marine hydrokinetic turbines utilizing a proprietary universal docking cradle system; (2) 66 modular subsea-compute hives (data center pods) integrated within the turbine array to utilize direct-coupled power and passive subsea cooling; (3) an approximately 3.5-mile long, 115 kV hybrid power/fiber-optic armored subsea cable; (4) a subsea cable landing site within the Nikiski Industrial Corridor, positioned between the Agrium Kenai Nitrogen Operations and the Kenai Liquefied Natural Gas Plant; and (5) appurtenant facilities. The estimated annual generation of the DeepGreen Project would be 100 megawatts, which would primarily be utilized to power the subsea data center. Spare electricity could be diverted to the grid via an interconnect with the Alaska Railbelt Grid at a dedicated terrestrial substation.

Applicant Contact: Louis Wolfson, Managing Member, DeepGreen Cook Inlet SPV, LLC 100 Crescent Road, Needham, MA 02494; phone: (617) 799-32326.

FERC Contact: Christopher Brosman; phone: (202) 502-8573. Email: Christopher.Brosman@ferc.gov.

Deadline for filing comments, motions to intervene, competing applications (without notices of intent), or notices of intent to file competing applications: by 5:00 p.m. Eastern Time on November 2, 2026.^[1] Competing applications and notices of intent must meet the requirements of 18 CFR 4.36.

The Commission strongly encourages electronic filing. Please file comments, motions to intervene, notices of intent, and competing applications using the Commission's eFiling system at ferconline.ferc.gov/​eFiling.aspx. Commenters can submit brief comments up to 10,000 characters, without prior registration, using the eComment system at ferconline.ferc.gov/​QuickComment.aspx. For assistance, please contact FERC Online Support at FERCOnlineSupport@ferc.gov, (866) 208-3676 (toll free), or (202) 502-8659 (TTY). In lieu of electronic filing, you may submit a paper copy. Submissions sent via the U.S. Postal Service must be addressed to: Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 888 First Street NE, Room 1A, Washington, DC 20426. Submissions sent via any other carrier must be addressed to: Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 12225 Wilkins Avenue, Rockville, Maryland 20852. The first page of any filing should include docket number P-15423-000.

For public inquiries and assistance with making filings such as interventions, comments, or requests for rehearing, contact the Office of Public Participation at (202) 502-6595 or OPP@ferc.gov.

More information about this project, including a copy of the application, can be viewed on the Commission's website ( www.ferc.gov) using the “eLibrary” link. Enter the docket number, excluding the last three digits (P-15423), in the docket number field to access the document. For assistance, contact FERC Online Support.

(Authority: 18 CFR 2.1.)