East Portal Generator
Hydro power plant in Los Angeles County, California. 1.2 MW of nameplate capacity across 1 generator, operated by Calleguas Mun Water District.
Also known as EIA plant 50375
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.2 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- January 1987First generator online
- Operator
- Calleguas Mun Water DistrictEIA operator ID 30076
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Los Angeles County, CA34.2619, −118.6242
- EIA plant ID
- 50375EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power East Portal Generator produces
Free · EIA-923Net generation, 2025
4.65 GWh
4,651 MWh, final
Capacity factor, 2025
44.2%
2024: 37.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.4–6.4
GWh a year. Low 2022, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 7,518 | Not reported | 12 of 12 |
| 2002 | 6,148 | Not reported | 12 of 12 |
| 2003 | 7,154 | Not reported | 12 of 12 |
| 2004 | 6,405 | Not reported | 12 of 12 |
| 2005 | 4,898 | Not reported | 12 of 12 |
| 2006 | 4,582 | Not reported | 12 of 12 |
| 2007 | 6,826 | Not reported | 12 of 12 |
| 2008 | 7,009 | Not reported | 12 of 12 |
| 2009 | 6,675 | Not reported | 12 of 12 |
| 2010 | 3,974 | 37.8% | 12 of 12 |
| 2011 | 5,814 | 55.3% | 12 of 12 |
| 2012 | 6,223 | 59.0% | 12 of 12 |
| 2013 | 6,993 | 66.5% | 12 of 12 |
| 2014 | 2,849 | 27.1% | 12 of 12 |
| 2015 | 2,215 | 21.1% | 12 of 12 |
| 2016 | 5,086 | 48.3% | 12 of 12 |
| 2017 | 5,895 | 56.1% | 12 of 12 |
| 2018 | 5,559 | 52.9% | 12 of 12 |
| 2019 | 5,577 | 53.1% | 12 of 12 |
| 2020 | 6,376 | 60.5% | 12 of 12 |
| 2021 | 3,041 | 28.9% | 12 of 12 |
| 2022 | 1,405 | 13.4% | 12 of 12 |
| 2023 | 4,028 | 38.3% | 12 of 12 |
| 2024 | 3,936 | 37.3% | 12 of 12 |
| 2025 | 4,651 | 44.2% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 1.2 | January 1987 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Calleguas Mun Water District as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near East Portal Generator
More plants operated by Calleguas Mun Water District
Questions about East Portal Generator
How much power does East Portal Generator produce?
East Portal Generator reported 4,651 MWh (4.65 GWh) of net generation in 2025, a 44.2% capacity factor on 1.2 MW of nameplate capacity.
Where is East Portal Generator?
East Portal Generator is in Los Angeles County, California, at 34.2619, −118.6242. It is in the California Independent System Operator balancing area (CISO).
Who operates East Portal Generator?
EIA-860M for August 2026 lists Calleguas Mun Water District as the operator (EIA operator ID 30076). The operator is not always the owner.
When did East Portal Generator start operating?
Its first generator began operating in January 1987, according to EIA-860M.
Does InfraMap have power prices for East Portal Generator?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to East Portal Generator, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page