Facts at a glance
- Record ID
stack-svy03a-hayward- Record type
- campus
- Evidence confidence
- high
DataCenterData’s confidence in this record’s sourced fields, not in the project - Developer
- STACK Infrastructure
- Operator
- Not named in the cited records
- Owner
- Owner of record not established
- Tenant
- Not named in the cited records
- Capacity
- up to 76.6 MW Planned on-site generation · campus scope
Proposed emergency backup-generation capacity in the CEC exemption record; not an issued air permit, IT capacity or utility load. - Location
- 26203 Production Avenue, Hayward, CA
County: Alameda County
Exact location — Parcels 461-0085-016-00 and 461-0085-052-01. - Physical scale
- 11.3 acres and two planned data-center buildings.
What the sources support
Hayward lists STACK SVY03A as under construction and records Planning Commission approval of SPR-23-0036 on May 22, 2025 with no appeal.
Definitions: record units · roles · capacity boundaries · lifecycle stages.
What remains unknown
- operator or tenant
- critical IT capacity
- utility service capacity
- completion and energization dates
Sources
-
California Energy Commission — STACK SVY03A, Docket 23-SPPE-01 →Gov. record
Exact location Project summary and Project Description
What it supports Project owner, address, planned buildings and backup-generation capacity.
-
CEQAnet SCH 2025030999 — SVY03A →Gov. record
Exact location Document Description and Location
What it supports Applicant, city, county, acreage, parcels and earlier 67.2 MW generation figure.
-
City of Hayward Data Center Development Applications →Gov. record
Exact location FAQ: Are there currently data centers in Hayward? — STACK SVY03A
What it supports Construction status, planning approval and current generation figure.
Sourced classifications
Only values a cited source states for this site are shown; every other dimension is unknown. These are not national shares or rankings.
- Power source: Utility grid service
“The backup generators would be run for short periods for testing and maintenance purposes and otherwise would not operate unless there is a disturbance or interruption of the utility supply.” — SVY03A Data Center Campus — CEQAnet SCH 2025030999, Document Description, retrieved 24 September 2026
Not established: Which entity supplies energy (PG&E delivery vs. Ava Community Energy generation is unresolved); service capacity; energization.
Connected records
Each connection below is a stored, reviewed relationship with its own basis. It does not change this record’s status.
Metro area: San Francisco-Oakland-Fremont, CA
Dated events
Real-world events recorded for this record, newest event date first. Each event page shows its source, dates and what it does not establish.
Power plant exemption grantedOfficial recordCalifornia
Power plant exemption granted on 9 May 2025: STACK SVY03A Data Center Campus (Hayward, CA) — state energy commission order dated 9 May 2025
- Event date
- Source dated
- Added to Latest updates
Record history
Record history · 24 March 2025 · DataCenterData review
stack-svy03a-hayward → Record
Why CEQAnet described 67.2 MW of emergency generation.
Evidence No additional evidence link; see the linked record or claim.
Record history · 22 May 2025 · DataCenterData review
stack-svy03a-hayward → Record
Why Planning Commission approved SPR-23-0036.
Evidence No additional evidence link; see the linked record or claim.
Record history · 12 September 2026 · DataCenterData review
stack-svy03a-hayward → Record
Why Current CEC and city pages state 76.6 MW; the earlier 67.2 MW remains historical, not additive.
Evidence No additional evidence link; see the linked record or claim.
Recorded information
What this page records, grouped by topic, with the source's units and qualifications. Company-reported values stay labeled as company-reported. Related listings are shown separately.
Reviewed record stack-svy03a-hayward
Campus.
Location and precision
- Shown above in Facts at a glance.
Roles
- Shown above in Facts at a glance.
Lifecycle
- Recorded status: construction
Area, acreage and buildings
- Shown above in Facts at a glance.
Power capacity
- Shown above in Facts at a glance.
Not yet recorded here: Cooling, water, PUE and WUE · Connectivity · Services · Certifications and design ratings · Rack density · Availability · Specification links and contact · Permits, incentives, jobs and proceedings.
Update this profile with a public source. The request includes topics needing more information; this does not mean the facility lacks them. Corrections and additions are reviewed before publication.
Data + actions
Permanent link for citing this record →
Suggest a correction → Record ID stack-svy03a-hayward and the page are prefilled. Accepted material corrections appear on Changes.