← All Projects

Microsoft San Antonio–Medina Cluster

Last updated

SAT campuses, far West Side + Castroville
Under construction

The quiet giant of South Texas: Microsoft has been building west of San Antonio since 2005 and is still adding, $1.8B+ in current filings across Medina County, with the newest pair filed just last month.

Planned powerNot disclosed (CPS Energy / Medina EC territory)
Developer
Microsoft
Owner
Microsoft
Tenant
Microsoft Azure / AI (some colocation-classified buildings)
Power source
CPS Energy / ERCOT
Cooling
Modern closed-loop designs; water use a local focus
Compute
Azure cloud + AI
Construction start
Ongoing; SAT 82 begins Aug 13, 2026
Est. completion
Rolling; SAT 82 by Jul 2028
Grid strategy
ERCOT grid
County
Medina, Bexar
Nearest city
Castroville / far-west San Antonio
Announced
2026-05-07