East Portal Generator
w/o Devonshire and Larwin, Chatsworth, CA 91311Plant Summary Information
East Portal Generator is ranked #179 out of 207 hydroelectric power plants in California in terms of total annual net electricity generation.
East Portal Generator is comprised of 1 generator and generated 816.0 MWh during the 3-month period between September 2025 to December 2025.
| Plant Name | East Portal Generator |
|---|---|
| Utility Name | Calleguas Mun Water District |
| Location | Los Angeles County, CA |
| Initial Operation Date | January 1987 |
| Last Update | Dec 2025 |
| Annual Generation | 4.7 GWh |
| Annual Consumption | 16.2 k MMBtu |
| Ranked #8,411 out of 13,081 Power Plants Nationwide | |
| Ranked #1,104 out of 1,311 Water Power Plants Nationwide | |
| Ranked #1,088 out of 1,606 California Power Plants | |
| Ranked #179 out of 207 California Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for East Portal Generator
Monthly Plant Fuel Consumption for East Portal Generator
East Portal Generator Details
| Summary Information | |
|---|---|
| Plant Name | East Portal Generator (50375) |
| Plant Address | w/o Devonshire and Larwin, Chatsworth, CA 91311 |
| Utility | Calleguas Mun Water District (30076) |
| Latitude, Longitude | 34.2619, -118.6242 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | January 1987 |
| Annual Generation | 4.7 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | Yes |
| FERC Small Power Producer Docket Number | 68-68-000 |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | California Independent System Operator (CISO) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Water Pipeline |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Southern California Edison Co (17609) CA |
| Grid Voltage | 16.00 kV |
| Energy Storage | No |
Generator GEN1 Details Operating January 1987
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.2 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 1.2 MW |
| Winter Capacity | 1.2 MW |
| Minimum Load | 0.3 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | January 1987 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
East Portal Generator Plant Owners
| Owner Name | Address | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #1094 | Stillwater Reservoir Hydro | Webb, NY | 4.9 GWh |
| #1095 | Wanship | Wanship, UT | 4.9 GWh |
| #1096 | Dunn Paper | Gouverneur, NY | 4.8 GWh |
| #1097 | Spillway | Pineville, SC | 4.8 GWh |
| #1098 | Upper Sterling | Rock Falls, IL | 4.8 GWh |
| #1099 | Kleber | Onaway, MI | 4.8 GWh |
| #1100 | Clam River Dam | Danbury, WI | 4.8 GWh |
| #1101 | Piedmont Hydro Power Project | Piedmont, SC | 4.8 GWh |
| #1102 | Upper Pacolet Hydro | Pacolet, SC | 4.8 GWh |
| #1103 | East Barnet | Barnet, VT | 4.7 GWh |
| #1105 | Gold Creek | Juneau, AK | 4.6 GWh |
| #1106 | Hydro Plant No 3 | east of Ephraim, UT | 4.6 GWh |
| #1107 | Head of U Canal Hydro Project | Jerome, ID | 4.6 GWh |
| #1108 | Mora Drop Hydroelectric Project | Kuna, ID | 4.6 GWh |
| #1109 | Gosselin Hydro Plant | Ruth, CA | 4.6 GWh |
| #1110 | North Gooding Main Hydro | Gooding, ID | 4.6 GWh |
| #1111 | Milton Hydro | Milton, NH | 4.6 GWh |
| #1112 | Tuckasegee | Tuckasegee, NC | 4.5 GWh |
| #1113 | Uintah | Neola, UT | 4.5 GWh |
| #1114 | Beaver Valley Patterson Dam | Beaver Falls, PA | 4.4 GWh |
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Below are closest 20 power plants surrounding East Portal Generator.
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|---|---|---|---|
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