Added as approved
Microsoft San Jose Data Center (SJDC)
Microsoft Corporation. Approved. 99 MW.
Microsoft's San Jose Data Center is a 396,914 square foot facility on 64.5 acres near Alviso, built around 224 small renewable natural gas generators plus diesel backup and an onsite substation, with a maximum electrical draw of about 99 megawatts. The California Energy Commission certified the project's environmental review and granted it a small power plant exemption in 2022, and the city of San Jose approved an addendum covering supporting road and utility work in April 2025. The project is expected to bring about 100 permanent jobs.
Follow this project
One email when Microsoft San Jose Data Center (SJDC) changes status or a new filing lands within 25 miles of it.
Renews yearly until you cancel. Cancel any time from any email. We do not sell the list.
Buying or living near this site? Get an address report.
- Status
- Approved
- Operator
- Microsoft Corporation
- Applicant on record
- Microsoft Corporation
- Location
- 1657 Alviso-Milpitas Road, San Jose, CA 95119, Santa Clara County, CA
- Size
- 99 MW, 65 acres, 396,914 sq ft
- Cooling
- Not reported
- Utility
- Pacific Gas and Electric
- First reported
- 2021-02
- Last updated
- September 24, 2026
What happens next
Still to come: permits and construction. Builders do not always announce a construction start date in advance.
Sources
- San Jose Data Center - (State Clearinghouse ID #2021020002), CEQAnet, State of California
- ADDENDUM TO THE SAN JOSE DATA CENTER FINAL ENVIRONMENTAL IMPACT REPORT, CEQAnet, State of California
- San Jose Data Center, California Energy Commission
What it would mean nearby
The cooling design has not been reported. If it uses evaporative cooling, a 99 MW facility would draw roughly 314,000 to 1.1 million gallons of water a day, about what 3,600 households use.
For how far this is from your own address, check it here. For a noise, water, and power bill estimate for one address, see the address report.
History
Other tracked projects within 25 miles
Dell 350 Holger Way Operator not disclosed
CoreSite SV2 CoreSite Real Estate 1656 McCarthy, L.P.
DataBank Santa Clara SFO1 DataBank
Stack Infrastructure Stack Infrastructure
NTT Limited data center NTT Limited
Common questions
Where is the Microsoft San Jose data center?
It is in San Jose, Santa Clara County, CA.
Has the Microsoft San Jose data center been approved?
Yes, it has been approved.
How big is the Microsoft San Jose data center?
Reported size: 99 MW, 65 acres, 396,914 square feet.
Is it near you?
Corrections and tips: use the address in the footer. We link every claim to its source.