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Data center project · Alameda County, California

STACK SVY03A Data Center Campus

Under construction · A two-building STACK campus approved in 2025 whose approval prompted Hayward's move toward a data center ban.

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Status
Under construction · as of Oct. 2026
Location
26203 Production Avenue, Hayward (Eden Landing) · Alameda County
Power
76.6 MW
76.6 MW of backup generation per the CEC and city.
Floor area
310,000 sq ft
Developer and team
STACK Infrastructure
Utility
PG&E
Evidence
Primary public records
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. 15, 2026 After public objections to the approval, the City Council voted 7-0 to start work on prohibiting future data centers. (Local News Matters (Bay City News), Sept. 18, 2026)
  2. May 22, 2025 The Hayward Planning Commission approved the project (SPR-23-0036); it was not appealed. (City of Hayward, undated)
  3. May 8, 2025 The CEC certified the environmental study and exempted the backup generators (23-SPPE-01). (City of Hayward, undated; California Energy Commission, undated)

Conflicts and open questions

  • The city lists the project as under construction (page undated).

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