Castroville, TX · Medina County · 29.350°N 98.880°W
Microsoft San Antonio SAT89/SAT90 Data Centers
Microsoft
Key facts
- Location
- Castroville, TX, Medina County
- Capacity
- —
- Powered by
- Grid (CPS Energy / renewable-matched)
- Announced
- 2025-05
- Last updated
Civic impact
Economics
- Investment
- $765M
Energy & water
- Energy source
- Grid
- Cooling
- Air-cooled
Microsoft has contracted 4.7 GW of renewable electricity in Texas statewide. Individual facility utility not confirmed in available sources.
Microsoft switched the Medina County design from evaporative to air-cooling at the request of Yancey Water Supply (which serves the area), cutting projected water use ~85% (~150,000 gpd). No site-specific residual water-use (MGD) figure is published.
Community sentiment
Medina County, west of San Antonio, hosts one of the densest Microsoft data-center clusters in the U.S.; residents and officials have raised concern over farmland conversion and groundwater strain, while the local tax base benefits and a cooperative water-supply redesign (air-cooling) resolved one supplier's objection. No litigation found.
Data centers replacing Medina County farmland, straining resourcesStatus history
- Proposed
Permit filings submitted for two new single-story data centers (SAT89 and SAT90) along US Hwy 90 in Medina County.
Microsoft files for data center campus outside San Antonio - Under construction
Construction scheduled to begin June 2025; completion targeted July 2027.
Microsoft files for data center campus outside San Antonio
Location
Sources & data provenance
Reported: data based on credible news outlets or industry sources.
Last updated:
- Data Center DynamicsRetrieved:
- Datacenters.comRetrieved:
- Texas MonthlyRetrieved:
- San Antonio ReportRetrieved:
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