Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/55220
EIA plant 55220
Sallis · Attala · MS
Attala
Operated by Entergy Mississippi LLC
Published location
Where is Attala?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
33.014700, -89.675300
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 MS 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.
1327,894
2254,140
3355,899
4321,890
652,834
7332,262
8333,573
9302,633
10358,249
1191,945
12225,618
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 11 of 11 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 | 327,894 |
| 2 | 254,140 |
| 3 | 355,899 |
| 4 | 321,890 |
| 6 | 52,834 |
| 7 | 332,262 |
| 8 | 333,573 |
| 9 | 302,633 |
| 10 | 358,249 |
| 11 | 91,945 |
| 12 | 225,618 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 327,894 MWh |
| 2 | 254,140 MWh |
| 3 | 355,899 MWh |
| 4 | 321,890 MWh |
| 6 | 52,834 MWh |
| 7 | 332,262 MWh |
| 8 | 333,573 MWh |
| 9 | 302,633 MWh |
| 10 | 358,249 MWh |
| 11 | 91,945 MWh |
| 12 | 225,618 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| A03 | Natural Gas Fired Combined Cycle | NG | 198.1 | OP |
| A01 | Natural Gas Fired Combined Cycle | NG | 176.6 | OP |
| A02 | Natural Gas Fired Combined Cycle | NG | 176.6 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
55220
Sector
Electric Utility
Water source
Big Black River
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 Attala 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 Attala
Variation in the published months
Across 11 numeric monthly generation entries, 10 has the highest recorded value (358,249 MWh) and 6 the lowest (52,834 MWh). Their difference is 305,415 MWh. Missing months have not been treated as zero.
Reading the MW column
In the 3 numeric rows displayed in this table, MW ranges from 176.6 (A01, A02) to 198.1 (A03). The difference is 21.5 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 |
|---|---|---|---|---|---|
| A01 | Natural Gas Fired Combined Cycle | 176.6 | Not supplied | Not supplied | 95.0 |
| A02 | Natural Gas Fired Combined Cycle | 176.6 | Not supplied | Not supplied | 95.0 |
| A03 | Natural Gas Fired Combined Cycle | 198.1 | 459.3 | 515.5 | 60.0 |
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.