- Combustion
- Storage
- Loads
- In development
- Operating
- Retired
- Size not stated
- 10 · 100 · 1,000 MW
Map
- Combustion
- Storage
- Loads
- In development
- Operating
- Retired
- Size not stated
W B Tuttle: location and 5 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
W B Tuttle
Power plant · Gas, steam turbine
Key facts
Power plant · Gas, steam turbineran 0% of 2009 Retired- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1954
- Net generation, 2009
- 5,466 MWh
- Grid
- 138 kV to San Antonio City of (ERCO)
- Location
- Bexar County, Texas
- Operated by
- City of San Antonio - (TX)SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Output
- Gas
Details
Who’s behind it
No companies named in filings yet.
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- Technology
- Gas, steam turbine source: “Natural Gas Steam Turbine”
- Age
- 72 years since 1954
1 attribute from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Balancing authority code | ERCO |
Retirement
EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.- Retired
- March 2011
- First unit retired
- October 2007
- Capacity retired
- 493.9 MW
- Generators retired
- 4
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 2 | Natural Gas Steam Turbine | 113.6 MW | Retired | October 2007 |
| 1 | Natural Gas Steam Turbine | 75 MW | Retired | March 2011 |
| 3 | Natural Gas Steam Turbine | 113.6 MW | Retired | March 2011 |
| 4 | Natural Gas Steam Turbine | 191.7 MW | Retired | March 2011 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 138 kV
- Transmission or distribution system owner
- San Antonio City of
- Balancing authority
- Electric Reliability Council of Texas, Inc.
- NERC region
- TRE
Transmission lines within 15 mi (10)
- 138 kV line (OSM way 320435582)
- 138 kV line (OSM way 320435572)
- 138 kV line (OSM way 320435583)
- 138 kV line (OSM way 110564162)
- 138 kV line (OSM way 135364165)
- 138 kV line (OSM way 320038736)
- 138 kV line (OSM way 320435629)
- 138 kV line (OSM way 135364183)
- 138 kV line (OSM way 135364172)
- 138 kV line (OSM way 1365587211)
Connection points within 15 mi (1)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Timeline
- Stated Units 1, 3, 4 scheduled to retire, 380.3 MW · EIA-860M
- Stated Unit 2 scheduled to retire, 113.6 MW · EIA-860M
- In service · EIA-860M
Sources
5 sourcesSources EIA-860M · OpenStreetMap · ERCOT · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory
© OpenStreetMap contributors
Sources
- EIA-860M
- OpenStreetMap© OpenStreetMap contributors. Power lines, cables and substations filtered and reshaped by Inframation from the OpenStreetMap elements in Overture Maps' base/infrastructure theme; this derived database is available under the Open Database License 1.0 as GeoParquet files at https://tiles.inframation.io/grid/osm-power/ (latest.json names the current version's files; licence: https://www.openstreetmap.org/copyright)
- ERCOT
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Alamo 3 BESS 2 Postponed | Storage | 12.0 mi | 100 |
| UTSA TEP II Postponed | Oil | 12.6 mi | 3 |
| Alamo City ESS Contracted | Storage | 14.1 mi | 128.2 |
| AMAZON WEB SERVICE DATA CENTER Built | Large load | 14.3 mi | |
| EX WEST GREEN DATA CENTER Built | Large load | 14.8 mi |
Sources EIA-860M · ERCOT · EPA ICIS-NPDES