Microsoft San Antonio SAT89/SAT90 Data Centers
Microsoft · Castroville, TX · United States
Facility record
- Lifecycle
- Under constructionSource-reported lifecycle
- Location precision
- approximate
- Address as listed
- Not published
- Coordinates
- 29.35, -98.88
- Serving utility, source-reported
- Not established
- Operational capacity, source-reported
- Not published
- Planned capacity, source-reported
- Not published
- Source record updated
- 2026-10-22
Source-reported capacity; not metered consumption. Review underlying documents and notes. Planned capacity may include future phases and is not added to operational capacity here. The source may use facility, grid-feed or IT capacity definitions; consult the linked documents.
Coordinate precision is a source label, not an independent parcel survey. A marker does not confirm utility territory or establish an effect on residential bills.
Reported lifecycle history
- Proposed
Permit filings submitted for two new single-story data centers (SAT89 and SAT90) along US Hwy 90 in Medina County.
Underlying source - Under construction
Construction scheduled to begin June 2025; completion targeted July 2027.
Underlying source
Source notes
Two single-story facilities (SAT89 and SAT90), each 244,700 sq ft, along US Hwy 90 in Medina County. Part of Microsoft's broader San Antonio campus (operating since 2005). $765M investment covers the two new buildings; broader expansion including Texas Research Park adds another $1B. Coordinates are approximate Castroville area centroid; exact parcel not publicly identified. Completion target corrected to July 2027 per permit filings. Tax abatements for SAT89/SAT90 are shielded under Texas competitive-information law (a Chapter 312 abatement is confirmed only for the earlier SAT82 building); site-specific job counts are unpublished (an earlier SAT82 building cited ~50 permanent / ~1,500 construction).
Microsoft has contracted 4.7 GW of renewable electricity in Texas statewide. Individual facility utility not confirmed in available sources.
Sources and provenance
- Microsoft files for data center campus outside San Antonio · source retrieved 2026-07-06
- Microsoft $1.5 billion data center expansion in San Antonio · source retrieved 2026-07-06
- How One Texas County Struck a Deal With Its Data Centers · source retrieved 2026-07-07
- Data centers replacing Medina County farmland, straining resources · source retrieved 2026-07-07
Power Wars capture: 2026-11-02. Compute Atlas, CC BY 4.0. Entries are not independently verified by Power Wars unless stated.