Middle Fork
5000 Mosquito Ridge Rd., Foresthill, CA 95631Plant Summary Information
Middle Fork is ranked #18 out of 207 hydroelectric power plants in California in terms of total annual net electricity generation.
Middle Fork is comprised of 2 generators and generated 133.7 GWh during the 3-month period between March 2026 to June 2026.
| Plant Name | Middle Fork |
|---|---|
| Utility Name | Placer County Water Agency - (CA) |
| Location | Placer County, CA |
| Initial Operation Date | October 1966 |
| Last Update | Jun 2026 |
| Annual Generation | 434.8 GWh |
| Annual Consumption | 1.7 M MMBtu |
| Ranked #1,526 out of 13,094 Power Plants Nationwide | |
| Ranked #95 out of 1,309 Water Power Plants Nationwide | |
| Ranked #100 out of 1,607 California Power Plants | |
| Ranked #18 out of 207 California Water Power Plants | |
| Fuel Types | Water |
| Previous Operator |
Placer County Water Agency (2013 to 2024) Placer County Water Agency - (CA) (2025 to 2025) |
Map of Middle Fork
Full Screen MapRegister Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Middle Fork.
Monthly Net Generation for Middle Fork
Monthly Plant Fuel Consumption 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 - (CA) (15127) |
| Latitude, Longitude | 39.0248, -120.59638 |
| Generation Dates on File | Jan 2001 to Jun 2026 |
| Initial Operation Date | October 1966 |
| Annual Generation | 434.8 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 |
|---|---|---|---|
| #85 | Caribou 2 | Belden, CA | 468.5 GWh |
| #86 | Spring Creek | Redding, CA | 462.6 GWh |
| #87 | Box Canyon | Ione, WA | 459.8 GWh |
| #88 | Rock Creek | Storrie, CA | 448.9 GWh |
| #89 | Kerckhoff 2 | Auberry, CA | 443.6 GWh |
| #90 | Jaybird | Camino, CA | 441.8 GWh |
| #91 | Cordell Hull | Carthage, TN | 441.3 GWh |
| #92 | Thompson Falls | Thompson Falls, MT | 439.8 GWh |
| #93 | White Rock/Slab Creek | Placerville, CA | 438.7 GWh |
| #94 | Long Lake | Ford, WA | 435.4 GWh |
| #96 | Fairfield Pumped Storage | Jenkinsville, SC | 433.6 GWh |
| #97 | Smithland Hydroelectric Plant | Smithland, KY | 433.6 GWh |
| #98 | Belden | Belden, CA | 432.0 GWh |
| #99 | Merwin | Ariel, WA | 422.6 GWh |
| #100 | Pensacola | Langley, OK | 422.2 GWh |
| #101 | Cannelton Hydroelectric Plant | Hawesville, KY | 416.9 GWh |
| #102 | Norris Dam | Norris, TN | 416.3 GWh |
| #103 | Bradley Lake | Homer, AK | 414.7 GWh |
| #104 | New Melones | Jamestown, CA | 410.5 GWh |
| #105 | Big Creek 1 | Big Creek, CA | 409.1 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Middle Fork.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Alta Powerhouse | Alta, CA | 2.2 GWh | 17.3 mi |
| Camino | Camino, CA | 288.9 GWh | 13.9 mi |
| Chicago Park | Colfax, CA | 65.2 GWh | 19 mi |
| Drum 1 | Alta, CA | 15.1 GWh | 18.5 mi |
| Drum 2 | Alta, CA | 164.2 GWh | 18.5 mi |
| Dutch Flat | Alta, CA | 66.0 GWh | 18.5 mi |
| Dutch Flat 2 | Dutch Flat, CA | 15.2 GWh | 18.5 mi |
| El Dorado | Pollock Pines, CA | 80.5 GWh | 16 mi |
| French Meadows | Foresthill, CA | 50.8 GWh | 10.9 mi |
| Jaybird | Camino, CA | 441.8 GWh | 13.6 mi |
| Jones Fork | Fresh Pond, CA | 14.9 GWh | 16.7 mi |
| Loon Lake | Fresh Pond, CA | 78.0 GWh | 14.9 mi |
| Oxbow (CA) | Foresthill, CA | 23.2 GWh | 8.2 mi |
| Ralston | Foresthill, CA | 302.6 GWh | 7.1 mi |
| Robbs Peak | Fresh Pond, CA | 41.4 GWh | 14.7 mi |
| Rollins | Colfax, CA | 36.9 GWh | 20.6 mi |
| Spaulding 1 | Emigrant Gap, CA | 17.4 GWh | 20.9 mi |
| Spaulding 2 | Emigrant Gap, CA | 21.0 MWh | 20.9 mi |
| Union Valley | Fresh Pond, CA | 89.1 GWh | 13.8 mi |
| White Rock/Slab Creek | Placerville, CA | 438.7 GWh | 20.7 mi |