STACK SVY03A
STACK Infrastructure · Hayward, CA · United States
Facility record
- Lifecycle
- Under constructionSource-reported lifecycle
- Location precision
- approximate
- Address as listed
- 26203 Production Avenue
- Coordinates
- 37.6281336, -122.1195048
- Serving utility, source-reported
- Not established
- Operational capacity, source-reported
- Not published
- Planned capacity, source-reported
- Not published
- Source record updated
- 2026-10-22
Source-reported capacity; not metered consumption. Review underlying documents and notes. Planned capacity may include future phases and is not added to operational capacity here. The source may use facility, grid-feed or IT capacity definitions; consult the linked documents.
Coordinate precision is a source label, not an independent parcel survey. A marker does not confirm utility territory or establish an effect on residential bills.
Reported lifecycle history
- Proposed
CEQA Mitigated Negative Declaration filed (SCH# 2025030999).
Underlying source - Permitted
Hayward Planning Commission unanimously approved Major Site Plan Review / Administrative Use Permit SPR-23-0036; no appeals filed.
Underlying source - Under construction
The City of Hayward's data center application register now lists STACK SVY03A (application SPR-23-0036, approved 2025-05-22) with a status of "Under construction", a change from the permitted state recorded at approval.
Underlying source
Source notes
STACK's first tracked East Bay CA site, as of August 2026 (existing STACK entries STACK SVY01/San Jose and STACK SVY02/Santa Clara are both South Bay). 300,000 sq ft campus at Production Ave/Investment Blvd: 3-story primary data center building + 1-story secondary building, height 100ft (+8ft variance approved); site plan also shows frontage on Eden Landing Road, treated as the same 11.3-acre parcel, not a separate site. The on-site generation figure reflects the CEC SPPE-disclosed backup-generator capacity (28 generators across two yards, docket 23-SPPE-01) - this is not a disclosed IT/critical-load figure; no whole-facility IT MW is publicly disclosed anywhere. The 76.6 MW figure supersedes the original CEQA filing's 67.2 MW. Jobs figures (41 permanent, ~380 construction) are single-sourced to local press (Tri City Voice; Hayward Herald ran the same underlying story). Coordinates are a geocoded street-address point, not parcel-confirmed.
76.6 MW is CEC SPPE-disclosed backup-generator capacity (docket 23-SPPE-01, 28 generators), not IT/critical load.
Sources and provenance
- CEQAnet Mitigated Negative Declaration filing (SCH# 2025030999) · source retrieved 2026-08-16
- STACK SVY03A backup generating system docket (23-SPPE-01) · source retrieved 2026-08-02
- Data center development applications · source retrieved 2026-09-29
- Who approved Hayward's largest data center? · source retrieved 2026-09-14
- Hayward data center under public scrutiny as loopholes pile up · source retrieved 2026-08-02
Power Wars capture: 2026-11-02. Compute Atlas, CC BY 4.0. Entries are not independently verified by Power Wars unless stated.