Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/3845
EIA plant 3845
Centralia · Lewis · WA
Transalta Centralia Generation
Operated by TransAlta Centralia Gen LLC
Published location
Where is Transalta Centralia Generation?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
46.755938, -122.859764
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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 WA 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.
1303,737
2306,733
3201,080
40
50
61,721
7351,501
8353,129
9273,309
10382,309
11350,283
12307,942
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 | 303,737 |
| 2 | 306,733 |
| 3 | 201,080 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1,721 |
| 7 | 351,501 |
| 8 | 353,129 |
| 9 | 273,309 |
| 10 | 382,309 |
| 11 | 350,283 |
| 12 | 307,942 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 303,737 MWh |
| 2 | 306,733 MWh |
| 3 | 201,080 MWh |
| 4 | 0 MWh |
| 5 | 0 MWh |
| 6 | 1,721 MWh |
| 7 | 351,501 MWh |
| 8 | 353,129 MWh |
| 9 | 273,309 MWh |
| 10 | 382,309 MWh |
| 11 | 350,283 MWh |
| 12 | 307,942 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 2 | Conventional Steam Coal | SUB | 729.9 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
3845
Sector
IPP Non-CHP
Water source
Skookumchuck 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 Transalta Centralia Generation 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 Transalta Centralia Generation
Variation in the published months
Across 12 numeric monthly generation entries, 10 has the highest recorded value (382,309 MWh) and 4, 5 the lowest (0 MWh). Their difference is 382,309 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 |
|---|---|---|---|---|---|
| 2 | Conventional Steam Coal | 729.9 | 670.0 | 670.0 | 250.0 |
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.