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Data center project · Kenai Peninsula Borough, Alaska

DeepGreen Cook Inlet subsea data center

Proposed · A Delaware company asked FERC for a preliminary permit to study a 100 MW tidal-powered underwater data center in a roughly 1,650-acre corridor of Cook Inlet off Nikiski. Also known as: FERC Project No. P-15423-000.

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Status
Proposed · as of Sept. 4, 2026
Location
Cook Inlet west of the Nikiski shoreline, East Foreland area (coordinates approximate) · Kenai Peninsula Borough
Status note
FERC accepted the preliminary permit application for comment (deadline Nov. 2, 2026); a preliminary permit would allow study only, not construction.
Power
100 MW
100 MW from up to 350 underwater tidal turbines powering 66 server 'hives', per the application as reported.
Land
1,650 acres
Investment
Preliminary studies estimated at $4.5 million over four years (FERC filing, as reported)
Developer and team
DeepGreen Cook Inlet SPV LLC
End user
Not identified
Utility
Tidal power; the application proposes tying into the Alaska Energy Authority's planned Cook Inlet PowerLink line, which AEA says it was never consulted about
Water
Cooled by seawater
Evidence
News reports; primary records not yet obtained
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.

Updates, newest first

  1. Sept. 21, 2026 DeepGreen told FERC the requested modeling and studies would take place during a three-year study period. (Anchorage Daily News, Sept. 24, 2026)
  2. Sept. 14, 2026 The Kenai Peninsula Borough moved to intervene, joining the Center for Biological Diversity (Sept. 1) and the Alaska Commercial Fisheries Conservation Alliance, which raised salmon, beluga and fishing-gear concerns. (Anchorage Daily News, Sept. 24, 2026)
  3. Sept. 4, 2026 FERC published notice accepting the application, opening comment through Nov. 2, 2026. (Peninsula Clarion, Sept. 14, 2026; Anchorage Daily News, Sept. 24, 2026)
  4. June 18, 2026 FERC's hydropower licensing staff listed deficiencies, including missing dimensions for underwater components and missing notice to Kenai and to tribes and Native corporations; the company supplemented its filing June 26. (Anchorage Daily News, Aug. 19, 2026; Peninsula Clarion, Sept. 14, 2026)
  5. Feb. 11, 2026 DeepGreen Cook Inlet filed a preliminary permit application at FERC. (Peninsula Clarion, Sept. 14, 2026; Anchorage Daily News, Aug. 19, 2026)

Conflicts and open questions

  • FERC's acceptance date differs by source: Sept. 1 (ADN) and Sept. 4 notice (Peninsula Clarion).
  • The 'three-mile footprint' and 1,650-acre corridor are the application's project boundary, not a built footprint.
  • A related DeepGreen proposal off Eastport, Maine, is in the Maine file.

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