# Bitter Blue — Building B

ERCOT data center · https://askthegrid.com/assets/facilities/bitter-blue-building-b

Amazon Data Services Inc. owns Bitter Blue—Building B, a two-story, 119,407-square-foot hyperscale cloud data center at 12807 Donop Road, San Antonio, served by CPS Energy. TDLR review is complete; construction is scheduled December 3, 2026 through February 9, 2029. No power capacity or commercial-operation date is reported.

## Identity and location

- Operating status: approved
- Asset scope: building
- Location: 12807 Donop Road, San Antonio, Bexar County, TX
- Owner: Amazon Data Services Inc (exact asset)
- Operator: Amazon Web Services (campus) — https://aws.amazon.com/
- Design firm: Gensler (exact asset) — https://www.gensler.com/

## Power and grid context

- ISO/RTO: ERCOT
- Balancing authority: ERCOT
- Electric utility: CPS Energy

## Development

- Site status: Permitted/approved; TDLR review complete, with construction scheduled to start December 3, 2026. The building is not reported as commercially operational.
- Site area: 50 acres
- Gross floor area: 119,407 square feet
- Buildings: 1
- Construction: Permitted new construction of a two-story, single-tenant computer data-center building identified as Bitter Blue — Building B at 12807 Donop Road. The TDLR filing lists an estimated construction start of December 3, 2026, completion of February 9, 2029, and estimated cost of $65 million. No commercial-operation date is reported.

## Compute and operations

- Facility classes: hyperscale, cloud
- Operating context: Planned Amazon Web Services/Amazon Data Services single-tenant, privately funded computer data-center building (Bitter Blue — Building B) at 12807 Donop Road. The official permit identifies the owner as Amazon Data Services Inc.; the tenant is not assigned.

## Sources

- [Amazon AWS Bitter Blue Campus — Building B — Central Texas Data Center Tracker](http://centexdatacenters.org/tracker/aws-bitter-blue-elmendorf)
- [http://datacenterdynamics.com/en/news/aws-files-to-develop-data-centers-in-san-antonio-texas](http://datacenterdynamics.com/en/news/aws-files-to-develop-data-centers-in-san-antonio-texas)
- [http://datacentermap.com/usa/texas/san-antonio](http://datacentermap.com/usa/texas/san-antonio)
- [http://expressnews.com/business/article/san-antonio-amazon-data-centers-west-southeast-22081667.php](http://expressnews.com/business/article/san-antonio-amazon-data-centers-west-southeast-22081667.php)
- [http://tdlr.texas.gov/TABS/Search/Project/TABS2026014987](http://tdlr.texas.gov/TABS/Search/Project/TABS2026014987)
- [Central Texas Data Center Tracker](https://centexdatacenters.org/tracker/aws-bitter-blue-elmendorf)
- [Data Centers in Texas](https://comptroller.texas.gov/taxes/data-centers/data-center-lists.php)
- [Electric Company In San Antonio: Everything You Need To ...](https://digitalenergyby5.com/blog/electric-company-san-antonio/)
- [Fetched web page](https://docsonline.sanantonio.gov/FileUploads/dsd/September%2025%2C%202013%20Planning%20Commission%20Agenda.pdf)
- [Amazon plans $65M data center on San Antonio South Side](https://www.bizjournals.com/sanantonio/news/2026/03/24/amazon-plans-65m-south-side-data-center.html)
- [Snider William Harold | Texas | Read Reviews + Get a Bid](https://www.buildzoom.com/contractor/snider-william-harold)
- [AWS files to develop data centers in San Antonio, Texas - DCD](https://www.datacenterdynamics.com/en/news/aws-files-to-develop-data-centers-in-san-antonio-texas/) — Data Center Dynamics · 2026-03-18
- [San Antonio Data Centers - 72 Facilities from 7 Operators](https://www.datacentermap.com/usa/texas/san-antonio/)
- [Amazon AWS SAT - 12807 Donop B Data Center in San Antonio](https://www.datacentermap.com/usa/texas/san-antonio/amazon-aws-sat-12807-donop-b/)
- [Amazon AWS SAT - 12807 Donop Data Center in San Antonio](https://www.datacentermap.com/usa/texas/san-antonio/amazon-aws-sat-12807-donop/)
- [Amazon AWS: 12807 Donop Rd](https://www.datacenters.com/amazon-aws-12807-donop-rd)
- [Electric Reliability Council of Texas](https://www.ercot.com/)
- [Amazon plans to build two data centers in San Antonio](https://www.expressnews.com/business/article/san-antonio-amazon-data-centers-west-southeast-22081667.php) — San Antonio Express-News · 2026-03-18
- [How massive development near Amazon's new San Antonio data center could transform the southeast side](https://www.mysanantonio.com/business/article/southeast-side-san-antonio-development-amazon-16072843.php)
- [Fetched web page](https://www.sanantonio.gov/Portals/0/Files/NHSD/TIF/TIRZ/CityInitiated/DavidEdwardsDriveExtensionBitterblue.pdf?ver=20220728)
- [TCEQ - Texas Commission on Environmental Quality - Texas.gov](https://www.tceq.texas.gov/@@search?advanced_search=True&b_start:int=3040&Creator=ksherry&sort_on=sortable_title)
- [TCEQ - Texas Commission on Environmental Quality - Texas.gov](https://www.tceq.texas.gov/@@search?sort_order=reverse&b_start:int=530&sort_on=Date&Creator=ksherry)
- [Project Details](https://www.tdlr.texas.gov/TABS/Search/Print/TABS2026014987)
- [TDLR TABS - Project Details](https://www.tdlr.texas.gov/TABS/Search/Project/TABS2026014987)
- [Community backs humane society in fight against AI data ...](https://www.wbrc.com/2026/07/12/paws-against-machine-community-backs-humane-society-fight-against-ai-data-center/)

## Data quality

- The official TDLR record identifies the exact project as BITTER BLUE, Facility Name: Building B, at 12807 Donop Road; it is a privately funded, private-land project, and its review status is complete.
- The TDLR record identifies Amazon Data Services Inc. as owner and Gensler as design firm, but lists the tenant as not assigned.
- The broader Bitterblue mixed-use development and older San Antonio planning or TIRZ records were not treated as exact-asset community benefits, hearings, opposition, or litigation because they do not identify TABS2026014987, Building B, or the 12807 Donop Road data-center building.
- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.

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Canonical page: https://askthegrid.com/assets/facilities/bitter-blue-building-b
Profile generated: 2026-07-27T23:57:49.902819Z
Source: Ask the Grid — https://askthegrid.com/