Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/392
EIA plant 392
Castaic · Los Angeles · CA
Castaic
Operated by Los Angeles Department of Water & Power
Published location
Where is Castaic?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
34.587237, -118.656638
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 CA 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.
1-6,069
21,077
3-434
4-7,079
535,846
61,102
79,533
8-10,252
94,010
105,002
1123,218
1237,344
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 | -6,069 |
| 2 | 1,077 |
| 3 | -434 |
| 4 | -7,079 |
| 5 | 35,846 |
| 6 | 1,102 |
| 7 | 9,533 |
| 8 | -10,252 |
| 9 | 4,010 |
| 10 | 5,002 |
| 11 | 23,218 |
| 12 | 37,344 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | -6,069 MWh |
| 2 | 1,077 MWh |
| 3 | -434 MWh |
| 4 | -7,079 MWh |
| 5 | 35,846 MWh |
| 6 | 1,102 MWh |
| 7 | 9,533 MWh |
| 8 | -10,252 MWh |
| 9 | 4,010 MWh |
| 10 | 5,002 MWh |
| 11 | 23,218 MWh |
| 12 | 37,344 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | WAT | 271 | OP |
| 2 | Hydroelectric Pumped Storage | WAT | 271 | OP |
| 3 | Hydroelectric Pumped Storage | WAT | 271 | OP |
| 4 | Hydroelectric Pumped Storage | WAT | 271 | OP |
| 5 | Hydroelectric Pumped Storage | WAT | 271 | OP |
| 6 | Hydroelectric Pumped Storage | WAT | 271 | OP |
| 7 | Conventional Hydroelectric | WAT | 56 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
392
Sector
Electric Utility
Water source
Pyramid Lake California Aquedu
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 Castaic 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 Castaic
Variation in the published months
Across 8 numeric monthly generation entries, 12 has the highest recorded value (37,344 MWh) and 2 the lowest (1,077 MWh). Their difference is 36,267 MWh. Missing months have not been treated as zero.
Reading the MW column
In the 7 numeric rows displayed in this table, MW ranges from 56 (7) to 271 (1, 2, 3). The difference is 215 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 | Hydroelectric Pumped Storage | 271.0 | 270.5 | 270.5 | 10.0 |
| 2 | Hydroelectric Pumped Storage | 271.0 | 270.5 | 270.5 | 10.0 |
| 3 | Hydroelectric Pumped Storage | 271.0 | 270.5 | 270.5 | 10.0 |
| 4 | Hydroelectric Pumped Storage | 271.0 | 270.5 | 270.5 | 10.0 |
| 5 | Hydroelectric Pumped Storage | 271.0 | 270.5 | 270.5 | 10.0 |
| 6 | Hydroelectric Pumped Storage | 271.0 | 270.5 | 270.5 | 10.0 |
| 7 | Conventional Hydroelectric | 56.0 | 51.5 | 51.5 | 2.0 |
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.