Middle Fork
5000 Mosquito Ridge Rd., Foresthill, CA 95631Plant Summary Information
Middle Fork is ranked #25 out of 209 hydroelectric power plants in California in terms of total annual net electricity generation.
Middle Fork is comprised of 2 generators and generated 154.6 GWh during the 3-month period between June 2025 to September 2025.
| Plant Name | Middle Fork |
|---|---|
| Utility Name | Placer County Water Agency |
| Location | Placer County, CA |
| Initial Operation Date | October 1966 |
| Last Update | Sep 2025 |
| Annual Generation | 364.9 GWh |
| Annual Consumption | 1.5 M MMBtu |
| Ranked #1,704 out of 12,539 Power Plants Nationwide | |
| Ranked #123 out of 1,332 Water Power Plants Nationwide | |
| Ranked #132 out of 1,600 California Power Plants | |
| Ranked #25 out of 209 California Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Middle Fork
Middle Fork Details
| Summary Information | |
|---|---|
| Plant Name | Middle Fork (425) |
| Plant Address | 5000 Mosquito Ridge Rd., Foresthill, CA 95631 |
| Utility | Placer County Water Agency (15127) |
| Latitude, Longitude | 39.0248, -120.59638 |
| Generation Dates on File | Jan 2001 to Sep 2025 |
| Initial Operation Date | October 1966 |
| Annual Generation | 364.9 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 | Rubicon River |
| Ash Impoundment | |
| Transmission / Distribution Owner | Pacific Gas & Electric Co (14328) CA |
| Grid Voltage | 230.00 kV |
| Energy Storage | No |
Generator 1 Details Operating October 1966
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 61.2 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 66 MW |
| Winter Capacity | 66 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | October 1966 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
Generator 2 Details Operating October 1966
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 61.2 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 66 MW |
| Winter Capacity | 66 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | October 1966 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
Middle Fork Plant Owners
| Owner Name | Address | Generator | 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 |
|---|---|---|---|
| #113 | White Rock/Slab Creek | Placerville, CA | 394.9 GWh |
| #114 | Parker Dam | Parker, CA | 390.7 GWh |
| #115 | Norris Dam | Norris, TN | 386.9 GWh |
| #116 | Mammoth Pool | North Fork, CA | 383.3 GWh |
| #117 | Spring Creek | Redding, CA | 375.4 GWh |
| #118 | Kerckhoff 2 | Auberry, CA | 370.5 GWh |
| #119 | Robert S Kerr | Keota, OK | 370.3 GWh |
| #120 | Table Rock | Branson, MO | 367.8 GWh |
| #121 | H M Jackson | Sultan, WA | 365.7 GWh |
| #122 | Collierville Powerhouse | Murphys, CA | 365.5 GWh |
| #124 | Caribou 2 | Belden, CA | 364.4 GWh |
| #125 | Pelton | Madras, OR | 361.8 GWh |
| #126 | Diablo | Rockport, WA | 361.4 GWh |
| #127 | Mitchell Dam | Verbena, AL | 355.5 GWh |
| #128 | Big Creek 2 | Auberry, CA | 355.2 GWh |
| #129 | Pensacola | Langley, OK | 349.1 GWh |
| #130 | Bartletts Ferry | Salem, AL | 348.0 GWh |
| #131 | Cordell Hull | Carthage, TN | 344.8 GWh |
| #132 | S C Moore | Littleton, NH | 341.5 GWh |
| #133 | Cherokee Dam | Rudledge, TN | 341.4 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Middle Fork.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Alta Powerhouse | Alta, CA | 1.4 GWh | 17.3 mi |
| Camino | Camino, CA | 271.0 GWh | 13.9 mi |
| Chicago Park | Colfax, CA | 59.8 GWh | 19 mi |
| Chili Bar | Placerville, CA | 32.8 GWh | 21 mi |
| Drum 1 | Alta, CA | 46.4 GWh | 18.5 mi |
| Drum 2 | Alta, CA | 148.6 GWh | 18.5 mi |
| Dutch Flat | Alta, CA | 27.1 GWh | 18.5 mi |
| Dutch Flat 2 | Dutch Flat, CA | 14.5 GWh | 18.5 mi |
| El Dorado | Pollock Pines, CA | 80.9 GWh | 16 mi |
| French Meadows | Foresthill, CA | 50.8 GWh | 10.9 mi |
| Jaybird | Camino, CA | 416.9 GWh | 13.6 mi |
| Jones Fork | Fresh Pond, CA | 8.6 GWh | 16.7 mi |
| Loon Lake | Fresh Pond, CA | 63.2 GWh | 14.9 mi |
| Oxbow (CA) | Foresthill, CA | 29.2 GWh | 8.2 mi |
| Ralston | Foresthill, CA | 328.1 GWh | 7.1 mi |
| Robbs Peak | Fresh Pond, CA | 37.0 GWh | 14.7 mi |
| Rollins | Colfax, CA | 38.6 GWh | 20.6 mi |
| Spaulding 1 | Emigrant Gap, CA | 17.6 GWh | 20.9 mi |
| Union Valley | Fresh Pond, CA | 76.5 GWh | 13.8 mi |
| White Rock/Slab Creek | Placerville, CA | 394.9 GWh | 20.7 mi |