FACILITY PROFILE · CA

Microsoft Alviso Data Center Campus

Microsoft · San Jose (Alviso) · CA

PROJECT FACTS

Facility overview

Under Construction

Operator: Microsoft
Location: San Jose (Alviso), Santa Clara, CA
Operating power capacity: Not publicly reported
Planned power capacity: 48.0 MW
AI classification: Not classified
Source confidence: Confirmed
Reported energy source: grid
Reported utility: Pacific Gas and Electric Company
Cooling system: unknown
Location accuracy: approximate
Original announcement: 2026-06-10
Source record updated: 2026-09-29

Operating MW and planned MW are separate disclosures, not automatically additive. Blank values mean no established source figure; they do not mean zero. Geolocation may be approximate or represent multiple sites.

SOURCE DOCUMENTATION

Original source links

Microsoft breaks ground on Alviso data center campus in San Jose, California ↗2026-07-17

Microsoft breaks ground on new data center in San Jose ↗2026-07-17

Microsoft breaks ground on data center in Alviso ↗2026-07-17

Connect CRE — Microsoft Breaks Ground on Long-Planned North San Jose Data Center Site ↗2026-07-25

HITT Contracting breaks ground on Microsoft Alviso datacenter ↗2026-09-14

San Jose Data Center (19-SPPE-04), applicant Microsoft Corporation, 1657 Alviso-Milpitas Road ↗2026-09-14

CPUC Resolution E-5439: PG&E agreements to energize Microsoft's new 90 MW data center (SJC02) at 1657 Alviso-Milpitas Road, San Jose ↗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) ↗2026-09-21

'Full-on Backlash' Against Data Centers Occurring as San José Courts Them ↗2026-09-29

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