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Data center siteSite record

Microsoft Alviso Data Center

San Jose, California, United StatesUnder construction
Capacity
No public figure
Lead participant
Microsoft
Developer
Last updated
Aug 27, 2026
Most recent public record update

About Microsoft Alviso Data Center

Microsoft began site preparation for a new multi-phase data center in Alviso, San Jose. Microsoft confirms construction activity but does not publish a defensible facility megawatt figure. Microsoft, HITT Contracting is associated with the development in San Jose, Santa Clara County, CA, US. The disclosed development scope includes site preparation began in fall 2025; initial earthmoving and soil remediation; multi-phase development. Power and physical infrastructure include new multi-phase cloud data center development. Microsoft does not publish an Alviso facility MW figure. The available public sources do not establish a project-scoped operating or contracted capacity figure.

Capacity

Operating capacityAn operating IT-capacity figure has not been publicly disclosed.

No additional capacity claims are published.

Development

1 phases · 2 milestones
Construction programUnder Construction

Project-wide phase for Microsoft Alviso Data Center; capacity class is unresolved.

Nov 19, 2025
Microsoft San Jose Alviso development disclosed
Completed
Site preparation under construction
Forecast

Infrastructure

Electric GridPlanned Or Represented

Microsoft does not publish an Alviso facility MW figure.

Site FacilityPlanned Or Represented

New multi-phase cloud data center development.

Project map

0 of 1 project point mapped
Infrastructure facts
2
Mapped records
1
Capacity figures
0

No map point available

Power & interconnection: 1Site systems: 1

Facts & sources

Published claims and their source links.

8 facts
Location Context
Microsoft Alviso site | San Jose | California
Actual
Lifecycle Status
Construction
Actual
Location Context
Microsoft Alviso site | San Jose | California
Actual
Lifecycle Status
Construction
Actual
Development Scale
Site preparation began in fall 2025
Actual
Development Milestone
Initial earthmoving and soil remediation
Actual
Power Arrangement
Multi phase development.
Actual
Site Configuration
Microsoft Alviso site | San Jose | California
Actual