Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/3075
EIA plant 3075
Cascade Locks · Multnomah · OR
Bonneville
Operated by USACE Northwestern Division
Published location
Where is Bonneville?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
45.644100, -121.941009
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 OR 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.
1404,682
2397,072
3420,604
4206,925
5149,956
6192,722
7157,625
8212,296
9268,948
10268,319
11377,582
12436,133
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 | 404,682 |
| 2 | 397,072 |
| 3 | 420,604 |
| 4 | 206,925 |
| 5 | 149,956 |
| 6 | 192,722 |
| 7 | 157,625 |
| 8 | 212,296 |
| 9 | 268,948 |
| 10 | 268,319 |
| 11 | 377,582 |
| 12 | 436,133 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 404,682 MWh |
| 2 | 397,072 MWh |
| 3 | 420,604 MWh |
| 4 | 206,925 MWh |
| 5 | 149,956 MWh |
| 6 | 192,722 MWh |
| 7 | 157,625 MWh |
| 8 | 212,296 MWh |
| 9 | 268,948 MWh |
| 10 | 268,319 MWh |
| 11 | 377,582 MWh |
| 12 | 436,133 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 11 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 12 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 13 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 14 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 15 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 16 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 17 | Conventional Hydroelectric | WAT | 66.5 | OP |
| 18 | Conventional Hydroelectric | WAT | 66.5 | OA |
| 10 | Conventional Hydroelectric | WAT | 62.1 | OA |
| 3 | Conventional Hydroelectric | WAT | 62.1 | OP |
| 4 | Conventional Hydroelectric | WAT | 62.1 | OP |
| 5 | Conventional Hydroelectric | WAT | 62.1 | OA |
| 6 | Conventional Hydroelectric | WAT | 62.1 | OA |
| 7 | Conventional Hydroelectric | WAT | 62.1 | OA |
| 8 | Conventional Hydroelectric | WAT | 62.1 | OA |
| 9 | Conventional Hydroelectric | WAT | 62.1 | OA |
| 1 | Conventional Hydroelectric | WAT | 53.5 | OP |
| 2 | Conventional Hydroelectric | WAT | 53.5 | OA |
| F1 | Conventional Hydroelectric | WAT | 13.1 | OP |
| F2 | Conventional Hydroelectric | WAT | 13.1 | OA |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
3075
Sector
Electric Utility
Water source
Columbia 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 Bonneville 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 Bonneville
Variation in the published months
Across 12 numeric monthly generation entries, 12 has the highest recorded value (436,133 MWh) and 5 the lowest (149,956 MWh). Their difference is 286,177 MWh. Missing months have not been treated as zero.
Reading the MW column
In the 20 numeric rows displayed in this table, MW ranges from 13.1 (F1, F2) to 66.5 (11, 12, 13). The difference is 53.4 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 | Conventional Hydroelectric | 53.5 | 53.5 | 53.5 | 13.2 |
| 10 | Conventional Hydroelectric | 62.1 | 54.0 | 54.0 | 13.2 |
| 11 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 12 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 13 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 14 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 15 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 16 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 17 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 18 | Conventional Hydroelectric | 66.5 | 66.5 | 66.5 | 23.2 |
| 2 | Conventional Hydroelectric | 53.5 | 53.5 | 53.5 | 13.2 |
| 3 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| 4 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| 5 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| 6 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| 7 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| 8 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| 9 | Conventional Hydroelectric | 62.1 | 62.1 | 62.1 | 13.2 |
| F1 | Conventional Hydroelectric | 13.1 | 13.1 | 13.1 | 13.1 |
| F2 | Conventional Hydroelectric | 13.1 | 13.1 | 13.1 | 13.1 |
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.