Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/4939
EIA plant 4939
Corpus Christi · Nueces · TX
Barney M Davis
Operated by City of San Antonio - (TX)
Published location
Where is Barney M Davis?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
27.606400, -97.311700
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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.
181,618
250,421
30
450,368
5151,913
6228,972
764,338
8377,268
9220,671
10216,084
1139,437
1279,819
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 | 81,618 |
| 2 | 50,421 |
| 3 | 0 |
| 4 | 50,368 |
| 5 | 151,913 |
| 6 | 228,972 |
| 7 | 64,338 |
| 8 | 377,268 |
| 9 | 220,671 |
| 10 | 216,084 |
| 11 | 39,437 |
| 12 | 79,819 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 81,618 MWh |
| 2 | 50,421 MWh |
| 3 | 0 MWh |
| 4 | 50,368 MWh |
| 5 | 151,913 MWh |
| 6 | 228,972 MWh |
| 7 | 64,338 MWh |
| 8 | 377,268 MWh |
| 9 | 220,671 MWh |
| 10 | 216,084 MWh |
| 11 | 39,437 MWh |
| 12 | 79,819 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | NG | 352 | OP |
| 2 | Natural Gas Fired Combined Cycle | NG | 351 | OP |
| 3 | Natural Gas Fired Combined Cycle | NG | 189.6 | OP |
| 4 | Natural Gas Fired Combined Cycle | NG | 189.6 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
4939
Sector
Electric Utility
Water source
Laguna Madre
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 Barney M Davis 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 Barney M Davis
Variation in the published months
Across 12 numeric monthly generation entries, 8 has the highest recorded value (377,268 MWh) and 3 the lowest (0 MWh). Their difference is 377,268 MWh. Missing months have not been treated as zero.
Reading the MW column
In the 4 numeric rows displayed in this table, MW ranges from 189.6 (3, 4) to 352 (1). The difference is 162.4 in the column's stated units. This summary covers the displayed rows and retains the table's period and scope.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | 352.0 | 292.0 | 292.0 | 60.0 |
| 2 | Natural Gas Fired Combined Cycle | 351.0 | 319.0 | 325.0 | 100.0 |
| 3 | Natural Gas Fired Combined Cycle | 189.6 | 157.0 | 165.0 | 75.0 |
| 4 | Natural Gas Fired Combined Cycle | 189.6 | 157.0 | 165.0 | 75.0 |
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.