Alta Powerhouse
904 Alta PH Rd, Alta, CA 95701Plant Summary Information
Alta Powerhouse is ranked #195 out of 207 hydroelectric power plants in California in terms of total annual net electricity generation.
Alta Powerhouse is comprised of 1 generator and generated 571.0 MWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Alta Powerhouse |
|---|---|
| Utility Name | Pacific Gas & Electric Co. |
| Location | Placer County, CA |
| Initial Operation Date | November 1902 |
| Last Update | Dec 2025 |
| Annual Generation | 2.2 GWh |
| Annual Consumption | 7.7 k MMBtu |
| Ranked #10,576 out of 13,081 Power Plants Nationwide | |
| Ranked #1,229 out of 1,311 Water Power Plants Nationwide | |
| Ranked #1,361 out of 1,606 California Power Plants | |
| Ranked #195 out of 207 California Water Power Plants | |
| Fuel Types | Water |
| Previous Operator |
Pacific Gas & Electric Co (2013 to 2016) Pacific Gas & Electric Co. (2017 to 2025) |
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Monthly Net Generation for Alta Powerhouse
Monthly Plant Fuel Consumption for Alta Powerhouse
Alta Powerhouse Details
| Summary Information | |
|---|---|
| Plant Name | Alta Powerhouse (214) |
| Plant Address | 904 Alta PH Rd, Alta, CA 95701 |
| Utility | Pacific Gas & Electric Co. (14328) |
| Latitude, Longitude | 39.21598, -120.80355 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | November 1902 |
| Annual Generation | 2.2 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 | Towle Canal |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Pacific Gas & Electric Co (14328) CA |
| Grid Voltage | 12.00 kV |
| Energy Storage | No |
Generator 1 Details Operating November 1902
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | BONNIEN_7_N002 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | BONNIEN_7_N002 |
| Nameplate Capacity | 1 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 1 MW |
| Winter Capacity | 1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | November 1902 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Alta Powerhouse 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 |
|---|---|---|---|
| #1219 | Skagway | Skagway, AK | 4.3 GWh |
| #1220 | Salisbury | Salisbury, VT | 2.4 GWh |
| #1221 | Rocky River (SC) | Iva, SC | 2.4 GWh |
| #1222 | Sissonville Hydro | Potsdam, NY | 2.4 GWh |
| #1223 | Danbury Dam | Danbury, WI | 2.3 GWh |
| #1224 | Boltonville Hydro Associates | Boltonville, VT | 2.3 GWh |
| #1225 | Pepperell Hydro Power Plant | Pepperell, MA | 2.3 GWh |
| #1226 | San Gabriel Hydro Project | Azusa, CA | 2.3 GWh |
| #1227 | Taftville | Taftville, CT | 2.2 GWh |
| #1228 | West Danville 15 | Danville, VT | 2.2 GWh |
| #1230 | Cadys Falls | Morrisville, VT | 2.2 GWh |
| #1231 | Gilman Mill | Gilman, VT | 2.2 GWh |
| #1232 | Lochmere Hydroelectric Plant | Tilton, NH | 2.1 GWh |
| #1233 | Salmon Falls | South Berwick, ME | 2.1 GWh |
| #1234 | Deadwood Creek | Dobbins, CA | 2.1 GWh |
| #1235 | Hillsborough Hosiery | Hillsboro, NH | 2.1 GWh |
| #1236 | Manitou Springs | Manitou Spring, CO | 2.0 GWh |
| #1237 | Puueo | Hilo, HI | 2.0 GWh |
| #1238 | Kings Falls Hydroelectric | Copenhagen, NY | 2.0 GWh |
| #1239 | Tacoma | Durango, CO | 1.9 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Alta Powerhouse.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Bowman | Nevada City, CA | 14.2 GWh | 17.9 mi |
| Chicago Park | Colfax, CA | 65.2 GWh | 5.4 mi |
| Colgate | Dobbins, CA | 1.3 TWh | 22.2 mi |
| Combie South | Auburn, CA | 3.7 GWh | 19.8 mi |
| Deer Creek PH | Nevada City, CA | 15.2 GWh | 6.1 mi |
| Drum 1 | Alta, CA | 15.1 GWh | 3.4 mi |
| Drum 2 | Alta, CA | 164.2 GWh | 3.5 mi |
| Dutch Flat | Alta, CA | 66.0 GWh | 1.7 mi |
| Dutch Flat 2 | Dutch Flat, CA | 15.2 GWh | 1.7 mi |
| French Meadows | Foresthill, CA | 50.8 GWh | 23.3 mi |
| Halsey | Auburn, CA | 21.5 GWh | 22 mi |
| Middle Fork | Foresthill, CA | 444.4 GWh | 17.3 mi |
| Narrows 2 | Browns Valley, CA | 181.2 GWh | 25 mi |
| Oxbow (CA) | Foresthill, CA | 23.2 GWh | 15 mi |
| Ralston | Foresthill, CA | 302.6 GWh | 15.4 mi |
| Rollins | Colfax, CA | 36.9 GWh | 9.8 mi |
| Scott Flat | Nevada City, CA | 3.8 GWh | 7.9 mi |
| Spaulding 1 | Emigrant Gap, CA | 17.4 GWh | 11.3 mi |
| Spaulding 2 | Emigrant Gap, CA | 21.0 MWh | 11.3 mi |
| Spaulding 3 | Emigrant Gap, CA | 16.9 GWh | 12.3 mi |