Data center campus · Port of Stockton West Complex, on the San Joaquin River, Stockton, San Joaquin County, California

Nautilus Stockton data center

Operating as of Sept. 2, 2026

A barge-mounted data center at the port, cooled by river water, that the city of Stockton uses for backup services. Also known as: Stockton1.

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Power6.5MW reported · stated
Floor area13,000sq ft
IT load6.5MW

Who is behind it

ProjectNautilus Stockton data centerAlso: Stockton1
Developer and teamNautilus Data Technologies
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. The City Council voted 7-0 to drop data centers from its economic plan during listening sessions; this was neither a ban nor a moratorium. (Stocktonia, Sept. 2, 2026)

  2. Nautilus's page for the site, last modified on this date, listed 6.5 MW of critical IT load across four vaults and 13,000 square feet of vault space. (Nautilus Data Technologies, June 11, 2026)

  3. Nautilus announced it had commissioned the site. (IREI, April 22, 2021)

  4. The Port of Stockton, as lead agency, filed a notice of determination for the barge data center. (CEQAnet, Port of Stockton, Sept. 21, 2018)

Conflicts and open questions

  • Stocktonia gives commissioning as December 2020, with customers from January 2021; the 2021 trade report dates the announcement to April 2021, and gives 10,000 square feet of floor space.
  • Stockton's service contract is with Poseidon One LLC, a Nautilus subsidiary, per Stocktonia.

The full record

Status note
Date is Stocktonia's report, which says the site reached full capacity in 2023 and was about 88% used as of June 2026.
Power note
Under 50 MW. 6.5 MW of critical IT load per the operator and Stocktonia; 7 MW in a 2021 trade report.
Evidence
Primary public records
Size class
Under 50 MW (outside main scope; kept for completeness)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.