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DataCentersExposed
Mapped (unverified)hyperscale

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 · Updated Jun 14, 2026

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Real parent
Microsoft Corporation
Operator
Microsoft Data Center LLC
Power
380 MW
Grid
ERCOT
Attribution & capacity confidence:mediumprovenance JSON
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

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

In the news

source: Google News

Tax breaks & subsidies

source: Good Jobs First / GASB 77

These 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.

Dollar value not disclosed for these records.
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2024 · term — yr · source
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2023 · term — yr · source
  • Qualified Data Center Sales Tax Exemption$0
    State of Wisconsin · granted 2023 · term — yr · source
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2022 · term — yr · source
  • Texas Qualifying Data Center Exemption$0
    State of Texas · granted 2021 · term — yr · source
  • Texas Qualifying Large Data Center Project Exemption$0
    State of Texas · granted 2015 · term — yr · source
  • Texas Qualifying Data Center Exemption$0
    State of Texas · granted 2013 · term — yr · source
  • Texas Qualifying Data Center Exemption$0
    State of Texas · granted 2013 · term — yr · source
Statewide cost of this incentive

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.

source · All Texas subsidies →

Water use

Modeled estimate~6.8M gpd
Direct (onsite cooling)
~3.9M gpd
Indirect (its electricity)
~2.9M gpd

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 ECHO

No reported violations as of last sync.

Air quality near this site

source: AirNow
54
PM2.5
Moderate
21
O3
Good
18
PM10
Good

Air 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 2023
Median household income
$56K
People of color
89%
Below poverty
23%
Tract population
2,676

Demographics 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 / NCES

The 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.