San Jose Data Center


SCH Number
Lead Agency
California Energy Commission
Document Title
San Jose Data Center
Document Type
NOP - Notice of Preparation
Present Land Use

Document Description
The California Energy Commission (CEC) has the exclusive authority to certify all thermal power plants (50 megawatts [MW] and greater) and related facilities proposed for construction in California. The Small Power Plant Exemption (SPPE) process allows applicants with facilities between 50 and 100 MW to obtain an exemption from CEC’s jurisdiction and proceed with local permitting rather than requiring CEC certification. CEC can grant an exemption if it finds that the proposed facility would not create a substantial adverse impact on the environment or energy resources. Public Resources Code section 25519(c) designates CEC as the lead agency, in accordance with the California Environmental Quality Act (CEQA), for all facilities seeking an SPPE. Microsoft Corporation (Microsoft or Applicant) is seeking an SPPE from the CEC’s jurisdiction to proceed with local permitting rather than requiring certification by the CEC for the San Jose Data Center (project).?? The applicant proposes to construct and operate the project, located at 1657 Alviso-Milpitas Road in San Jose, California. The project would consist of two single-story data center buildings. To provide reliable operation of the data center in the event of loss of electrical service from the local electric utility provider, Pacific Gas and Electric Company (PG&E), the project includes 40 3.0-MW Tier 4 compliant standby diesel generators. The generators would provide electrical power to support the information technology (IT) load during utility outages or certain onsite electrical equipment interruptions or failure. The maximum electrical load of the data center would be 99 MW, although the estimated load is 92 MW, inclusive of IT equipment, ancillary electrical/ telecommunications equipment, and other electrical loads (administrative, heat rejection, and safety/security). The project also includes an onsite 115-kilovolt (kV) substation with two 115-kV electrical supply lines that would connect to PG&E’s Los Esteros Substation, located adjacent to the site. The project would require offsite linears for potable water, reclaimed water, storm water, sanitary sewer, and electrical. No natural gas would be used onsite.

Contact Information
Lisa Worrall
California Energy Commission
Lead/Public Agency
1516 Ninth Street, MS 40
Sacramento, CA 95814

Phone : (916) 661-8367

Microsoft Corporation
Project Applicant


San Jose
Santa Clara
Northern California
Cross Streets
Alviso-Milpitas Rd/Ranch Rd/Mc Carthy Blvd
Total Acres
Parcel #
State Highways
SR-237, I-880
Anthony Spangler Elementary,Don Callejon,Pearl Zanker Elementary
Berryessa Creek, Calera Creek, Coyote Creek, Guadalupe River, Los Coches Creek
Other Information
Other waterways: Lower Penitencia Creek, Piedmont Creek, Scott Creek, Tularcitos Creek, Wrigley Ford Creek. Other schools: George Mayne Elementary, Kinder Care Learning Center,Headsup! Child Development Center, Saba Academy, St John the Baptist Catholic School, Cogswell College.

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Data center with diesel backup generators)
Local Action
Use Permit
Project Issues
Air Quality Biological Resources Coastal Zone Cultural Resources Cumulative Effects Drainage/Absorption Flood Plain/Flooding Geology/Soils Greenhouse Gas Emissions Growth Inducement Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Noise Public Services Recreation Sewer Capacity Solid Waste Transportation Tribal Cultural Resources Vegetation Wildfire Wildlife Other
Reviewing Agencies
California Air Resources Board (ARB) California Department of Conservation (DOC) California Department of Fish and Wildlife, Marin Region 7 (CDFW) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) California Department of Water Resources (DWR) California Energy Commission California Governor's Office of Emergency Services (OES) California Highway Patrol (CHP) California Natural Resources Agency California Public Utilities Commission (CPUC) California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB) California State Lands Commission (SLC) Department of Toxic Substances Control Office of Historic Preservation San Francisco Bay Conservation and Development Commission (BCDC) State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Water Quality California Native American Heritage Commission (NAHC) California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)


Environmental Document
_Memo   PDF 420 K NOP_Letter_package_SJDC   PDF 605 K NOP_Letter_package_SJDC_Updated   PDF 569 K Summary_Form_Document_Submittal_Package   PDF 117 K
NOC_Attach A_SJDC   PDF 259 K
State Comments
2021020002_CDFW Comment   PDF 342 K 2021020002_NAHC Comment   PDF 291 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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