Microsoft Alviso Data Center Campus

Facility record

Lifecycle

Under constructionSource-reported lifecycle

Location precision

approximate

Address as listed

1657 Alviso-Milpitas Road

Coordinates

37.428, -121.977

Serving utility, source-reported

Pacific Gas and Electric Company

Operational capacity, source-reported

Not published

Planned capacity, source-reported

48 MW

Source record updated

2026-10-19

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

1. 2026-06-10Under construction
   Underlying source

Source notes

Microsoft's first self-owned/operated data center in San Jose. Groundbreaking June 10, 2026, target completion 2028. 64-acre site (1657 Alviso-Milpitas Rd), two-building campus. Distinct from the already-tracked Prologis San Jose records.

CEC Small Power Plant Exemption 19-SPPE-04 (exempted 2022-07-14) covers backup generation for this site: 224 renewable-natural-gas generators rated 0.45 MW each plus two diesel administrative generators of 1.25 MW and 0.5 MW, against a stated maximum electrical load of 99 MW and an estimated operational load of 77 MW.

Sources and provenance

• Microsoft breaks ground on Alviso data center campus in San Jose, California · source retrieved 2026-07-17
• Microsoft breaks ground on new data center in San Jose · source retrieved 2026-07-17
• Microsoft breaks ground on data center in Alviso · source retrieved 2026-07-17
• Connect CRE — Microsoft Breaks Ground on Long-Planned North San Jose Data Center Site · source retrieved 2026-07-25
• HITT Contracting breaks ground on Microsoft Alviso datacenter · source retrieved 2026-09-14
• San Jose Data Center (19-SPPE-04), applicant Microsoft Corporation, 1657 Alviso-Milpitas Road · source retrieved 2026-10-19
• CPUC Resolution E-5439: PG&E agreements to energize Microsoft's new 90 MW data center (SJC02) at 1657 Alviso-Milpitas Road, San Jose · source retrieved 2026-09-21
• City of San José — Data Center and other Large Energy-Use Projects (application list updated 2026-07-13; Wayback capture 2026-08-13) · source retrieved 2026-10-19
• 'Full-on Backlash' Against Data Centers Occurring as San José Courts Them · source retrieved 2026-09-29

Power Wars capture: 2026-11-02. Compute Atlas, CC BY 4.0. Entries are not independently verified by Power Wars unless stated.