Microsoft San Antonio (Quarry)
San Antonio, Bexar County, TX
Microsoft San Antonio (Quarry) is a mapped data center in Bexar County, TX, operated by Microsoft Data Center LLC and ultimately owned by Microsoft Corporation. DataCentersExposed has documented 380 MW of reported power capacity at this site.
Reporting by Eric Keller · Updated Jun 14, 2026
Overview
Microsoft San Antonio (Quarry) is a hyperscale data center in San Antonio, Bexar County, Texas, operated by Microsoft Data Center LLC and ultimately owned by Microsoft Corporation. Operational since 2008, the site draws on a reported power capacity of 380 MW and pulls from the ERCOT grid.
Operator chain
- Ultimate parentMicrosoft Corporation
- Files asMicrosoft Data Center LLC
- This facilityMicrosoft San Antonio (Quarry)
Grid & water — why here
source: HIFLD · EPAThe closest existing grid infrastructure and the municipal water system this location sits in — the same constraints the buildout model screens on (it won't site a campus more than ~2 km from a substation or ~5 km from municipal water). Distances are straight-line to public HIFLD/EPA features, not a metered connection.
In the news
source: GDELT- Company wants to put 2 data centers on former quarry land near Hershey - PennLivePennLive· Jun 23, 2026
- Chevron (CVX) Expands Microsoft Deal With $7 Billion Texas AI Data Center Plan - simplywall.stsimplywall.st· Jul 15, 2026
- National Grid Ventures invests $1.75bn in Joulent for construction of gas plant powering 2GW Microsoft data center in Texas - Data Center DynamicsData Center Dynamics· Jul 3, 2026
- Chevron (CVX) Just Signed A 20 Year Microsoft AI Data Center Power Deal - Yahoo FinanceYahoo Finance· Jul 1, 2026
- Chevron-Microsoft Deal Fuels a Large Data Center in Texas with Natural Gas - The Institute for Energy ResearchThe Institute for Energy Research· Jun 29, 2026
- Chevron will fuel Microsoft's huge West Texas data center with gas for 20 years - The Cool DownThe Cool Down· Jun 27, 2026
Tax breaks & subsidies
source: Good Jobs First / GASB 77These tax breaks are recorded to Microsoft Corporation (the operator/parent) and may cover this or other sites — no state names the recipient at the facility level.
- Texas Qualifying Large Data Center Project ExemptionTax break$0State of Texas · granted 2024 · term — yr · source
- Texas Qualifying Large Data Center Project ExemptionTax break$0State of Texas · granted 2023 · term — yr · source
- Texas Qualifying Large Data Center Project ExemptionTax break$0State of Texas · granted 2022 · term — yr · source
- Texas Qualifying Data Center ExemptionTax break$0State of Texas · granted 2021 · term — yr · source
- Texas Qualifying Large Data Center Project ExemptionTax break$0State of Texas · granted 2015 · term — yr · source
- Texas Qualifying Data Center ExemptionTax break$0State of Texas · granted 2013 · term — yr · source
- Texas Qualifying Data Center ExemptionTax break$0State of Texas · granted 2013 · term — yr · source
Texas reported $16.1M in Property used in certain large data center projects; temporary exemption (Texas Tax Code § 151.3595) for FY2025 (Texas Comptroller of Public Accounts). Program-wide, not attributable to this site.
Water use
No measured record exists, so this is a low-confidence model from 380 MW (disclosed IT power): 2 L/kWh cooling (hot climate) + 0.4 gal/kWh embedded in ERCOT grid mix. How we estimate. Have a utility document? Send it and we'll replace this with the real figure.
EPA permits & violations
source: EPA ECHONo reported violations as of last sync.
Air quality near this site
source: AirNowAir Quality Index from the nearest AirNow reporting area (San Antonio), as of 2026-06-10. Regional context — not this facility's own emissions.
Who lives nearby
source: Census ACS 2023Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.
Nearest school
source: HIFLD / NCESThe nearest public school, Woodlawn Academy in San Antonio, is 0.2 mi from this site (506 students). 6 public schools sit within a mile of the site.
Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).
Hearings timeline
No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.