Portal
Hwy168 Sierra Nat'l Forest, Lakeshore, CA 93634Plant Summary Information
Portal is ranked #107 out of 207 hydroelectric power plants in California in terms of total annual net electricity generation.
Portal is comprised of 1 generator and generated 7.7 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Portal |
|---|---|
| Utility Name | Southern California Edison Co |
| Location | Fresno County, CA |
| Initial Operation Date | December 1956 |
| Last Update | Dec 2025 |
| Annual Generation | 26.2 GWh |
| Annual Consumption | 91.3 k MMBtu |
| Ranked #5,035 out of 13,081 Power Plants Nationwide | |
| Ranked #634 out of 1,311 Water Power Plants Nationwide | |
| Ranked #630 out of 1,606 California Power Plants | |
| Ranked #107 out of 207 California Water Power Plants | |
| Fuel Types | Water |
Map of Portal
Full Screen MapRegister Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Portal.
Monthly Net Generation for Portal
Monthly Plant Fuel Consumption for Portal
Portal Details
| Summary Information | |
|---|---|
| Plant Name | Portal (354) |
| Plant Address | Hwy168 Sierra Nat'l Forest, Lakeshore, CA 93634 |
| Utility | Southern California Edison Co (17609) |
| Latitude, Longitude | 37.25705, -119.15894 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | December 1956 |
| Annual Generation | 26.2 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | WECC |
| Balancing Authority | California Independent System Operator (CISO) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Portal Forebay |
| Ash Impoundment | |
| Transmission / Distribution Owner | Southern California Edison Co (17609) CA |
| Grid Voltage | 33.00 kV |
| Energy Storage | No |
Generator 1 Details Operating December 1956
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 10.8 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 10.8 MW |
| Winter Capacity | 10.8 MW |
| Minimum Load | 1.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | December 1956 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 10M |
Portal 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 |
|---|---|---|---|
| #624 | Little Falls (MN) | Little Falls, MN | 27.0 GWh |
| #625 | Rio Bravo Hydro Project | Bakersfield, CA | 27.0 GWh |
| #626 | McSwain | Snelling, CA | 26.9 GWh |
| #627 | Bulls Bridge | New Milford, CT | 26.9 GWh |
| #628 | Drop 2 (CA) | Holtville, CA | 26.7 GWh |
| #629 | Kansas River Project | Lawrence, KS | 26.7 GWh |
| #630 | McClure Dam | Marquette, MI | 26.5 GWh |
| #631 | Deerfield 3 | Buckland, MA | 26.5 GWh |
| #632 | South Forks Hydro | Hansen, ID | 26.3 GWh |
| #633 | Wailuku River Hydroelectric | Hilo, HI | 26.3 GWh |
| #635 | Stevens Point | Stevens Point, WI | 25.9 GWh |
| #636 | PHP 2 | Sandy, OR | 25.8 GWh |
| #637 | Kingsford | Kingsford, MI | 25.7 GWh |
| #638 | Falls Village | Falls Village, CT | 25.7 GWh |
| #639 | Inghams | Little Falls, NY | 25.6 GWh |
| #640 | Alcona | Glennie, MI | 25.5 GWh |
| #641 | Chili Bar | Placerville, CA | 25.2 GWh |
| #642 | Peterson | Milton, VT | 25.1 GWh |
| #643 | High Falls - Croghan NY | Croghan, NY | 25.0 GWh |
| #644 | White River Lock and Dam 3 | Marcella, AR | 24.9 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Portal.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| A G Wishon | North Fork, CA | 24.1 GWh | 20.4 mi |
| Balch 1 | Balch Camp, CA | 71.2 GWh | 24.4 mi |
| Balch 2 | Balch Camp, CA | 342.3 GWh | 24.4 mi |
| Big Creek 1 | Big Creek, CA | 409.1 GWh | 5.7 mi |
| Big Creek 2 | Auberry, CA | 376.6 GWh | 9 mi |
| Big Creek 2A | Auberry, CA | 273.7 GWh | 9 mi |
| Big Creek 3 | Auberry, CA | 747.3 GWh | 14.6 mi |
| Big Creek 4 | North Fork, CA | 392.1 GWh | 20 mi |
| Big Creek 8 | Auberry, CA | 151.8 GWh | 9.9 mi |
| Bishop Creek 2 | Bishop, CA | 13.2 GWh | 32.2 mi |
| CD4 | Mammoth Lakes, CA | 236.3 GWh | 30 mi |
| Haas | Balch Camp, CA | 154.8 GWh | 24 mi |
| J S Eastwood | Shaver Lake, CA | 130.6 GWh | 9.3 mi |
| Kerckhoff 2 | Auberry, CA | 444.1 GWh | 25.4 mi |
| Kings River PH | Balch Camp, CA | 80.8 GWh | 25.5 mi |
| Mammoth G1 | Mammoth lakes, CA | 43.6 GWh | 30 mi |
| Mammoth G2 | Mammoth Lakes, CA | 83.8 GWh | 30.2 mi |
| Mammoth G3 | Mammoth Lakes, CA | 75.3 GWh | 30.1 mi |
| Mammoth Pool | North Fork, CA | 568.6 GWh | 10.2 mi |
| Pine Flat | Piedra, CA | 353.0 GWh | 30.8 mi |