Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/3611
EIA plant 3611
San Antonio · Bexar · TX
O W Sommers
Operated by City of San Antonio - (TX)
Published location
Where is O W Sommers?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
29.308056, -98.324200
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the TX plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
1120,040
2-1,346
3147,303
4222,647
5365,500
6349,952
7162,790
8239,138
9261,319
10243,978
11233,229
12187,178
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 120,040 |
| 2 | -1,346 |
| 3 | 147,303 |
| 4 | 222,647 |
| 5 | 365,500 |
| 6 | 349,952 |
| 7 | 162,790 |
| 8 | 239,138 |
| 9 | 261,319 |
| 10 | 243,978 |
| 11 | 233,229 |
| 12 | 187,178 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 120,040 MWh |
| 2 | -1,346 MWh |
| 3 | 147,303 MWh |
| 4 | 222,647 MWh |
| 5 | 365,500 MWh |
| 6 | 349,952 MWh |
| 7 | 162,790 MWh |
| 8 | 239,138 MWh |
| 9 | 261,319 MWh |
| 10 | 243,978 MWh |
| 11 | 233,229 MWh |
| 12 | 187,178 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | NG | 446 | OP |
| 2 | Natural Gas Steam Turbine | NG | 446 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
3611
Sector
Electric Utility
Water source
Calaveras Lake
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right O W Sommers power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at O W Sommers
Variation in the published months
Across 11 numeric monthly generation entries, 5 has the highest recorded value (365,500 MWh) and 1 the lowest (120,040 MWh). Their difference is 245,460 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | 446.0 | 420.0 | 420.0 | 70.0 |
| 2 | Natural Gas Steam Turbine | 446.0 | 410.0 | 410.0 | 70.0 |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.