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 116.6 GWh during the 3-month period between February 2026 to May 2026.
| Plant Name | Middle Fork |
|---|---|
| Utility Name | Placer County Water Agency - (CA) |
| Location | Placer County, CA |
| Initial Operation Date | October 1966 |
| Last Update | May 2026 |
| Annual Generation | 444.4 GWh |
| Annual Consumption | 1.6 M MMBtu |
| Ranked #1,500 out of 13,081 Power Plants Nationwide | |
| Ranked #93 out of 1,311 Water Power Plants Nationwide | |
| Ranked #97 out of 1,606 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) |
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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 May 2026 |
| Initial Operation Date | October 1966 |
| Annual Generation | 444.4 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 |
|---|---|---|---|
| #83 | Cheoah | Tapoco, NC | 472.4 GWh |
| #84 | Rock Creek | Storrie, CA | 471.6 GWh |
| #85 | Caribou 2 | Belden, CA | 470.8 GWh |
| #86 | Meldahl Hydroelectric Project | Foster, KY | 470.5 GWh |
| #87 | Box Canyon | Ione, WA | 459.8 GWh |
| #88 | Pit 5 | Big Bend, CA | 456.3 GWh |
| #89 | Jaybird | Camino, CA | 454.3 GWh |
| #90 | Fairfield Pumped Storage | Jenkinsville, SC | 450.6 GWh |
| #91 | White Rock/Slab Creek | Placerville, CA | 446.1 GWh |
| #92 | Spring Creek | Redding, CA | 444.5 GWh |
| #94 | Kerckhoff 2 | Auberry, CA | 444.1 GWh |
| #95 | Cordell Hull | Carthage, TN | 441.3 GWh |
| #96 | Thompson Falls | Thompson Falls, MT | 439.8 GWh |
| #97 | Long Lake | Ford, WA | 435.4 GWh |
| #98 | Merwin | Ariel, WA | 422.6 GWh |
| #99 | Pensacola | Langley, OK | 422.2 GWh |
| #100 | Smithland Hydroelectric Plant | Smithland, KY | 420.6 GWh |
| #101 | Cannelton Hydroelectric Plant | Hawesville, KY | 416.9 GWh |
| #102 | Norris Dam | Norris, TN | 416.3 GWh |
| #103 | Belden | Belden, CA | 415.3 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 | 293.9 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 | 454.3 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 | 446.1 GWh | 20.7 mi |