Dion R Holm
Cherry Lake Road, Groveland, CA 95321Plant Summary Information
Dion R Holm is ranked #9 out of 187 hydroelectric power plants in California in terms of total annual net electricity generation.
Dion R Holm is comprised of 2 generators and generated 178.0 GWh during the 3-month period between December 2024 to March 2025.
| Plant Name | Dion R Holm |
|---|---|
| Utility Name | City & County of San Francisco |
| Location | Tuolumne County, CA |
| Initial Operation Date | August 1960 |
| Last Update | Mar 2025 |
| Annual Generation | 497.3 GWh |
| Annual Consumption | 1.9 M MMBtu |
| Ranked #1,303 out of 11,623 Power Plants Nationwide | |
| Ranked #79 out of 1,242 Water Power Plants Nationwide | |
| Ranked #80 out of 1,487 California Power Plants | |
| Ranked #9 out of 187 California Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Dion R Holm
Dion R Holm Details
| Summary Information | |
|---|---|
| Plant Name | Dion R Holm (380) |
| Plant Address | Cherry Lake Road, Groveland, CA 95321 |
| Utility | City & County of San Francisco (16612) |
| Latitude, Longitude | 37.89665, -119.9675 |
| Generation Dates on File | Jan 2001 to Mar 2025 |
| Initial Operation Date | August 1960 |
| Annual Generation | 497.3 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 | Cherry Reservoir |
| Ash Impoundment | No |
| Transmission / Distribution Owner | City & County of San Francisco (16612) CA |
| Grid Voltage | 230.00 kV |
| Energy Storage | No |
Generator 1 Details Operating August 1960
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | INTKEP_2_UNITS-APND |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | INTKEP_2_UNITS |
| Nameplate Capacity | 78.4 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 78.4 MW |
| Winter Capacity | 78.4 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | August 1960 |
| 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 | 1H |
| Multiple Fuels | No |
Generator 2 Details Operating August 1960
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | INTKEP_2_UNITS-APND |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | INTKEP_2_UNITS |
| Nameplate Capacity | 78.4 MW |
| Nameplate Power Factor | 0.95 |
| Summer Capacity | 78.4 MW |
| Winter Capacity | 78.4 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | August 1960 |
| 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 | 1H |
| Multiple Fuels | No |
Dion R Holm 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 |
|---|---|---|---|
| #69 | Trinity | Weaverville, CA | 531.0 GWh |
| #70 | Swift 1 | Cougar, WA | 525.6 GWh |
| #71 | Calderwood | Tallassee, TN | 521.6 GWh |
| #72 | Yale | Amboy, WA | 516.9 GWh |
| #73 | Walter Bouldin Dam | Wetumpka, AL | 514.5 GWh |
| #74 | Nickajack | New Hope, TN | 509.6 GWh |
| #75 | Wyman Hydro | Bingham, ME | 501.6 GWh |
| #76 | Fairfield Pumped Storage | Jenkinsville, SC | 501.0 GWh |
| #77 | Barkley | Kuttawa, KY | 500.5 GWh |
| #78 | Table Rock | Branson, MO | 499.1 GWh |
| #80 | Collierville Powerhouse | Murphys, CA | 495.9 GWh |
| #81 | Balch 2 | Balch Camp, CA | 489.7 GWh |
| #82 | Ryan | Great Falls, MT | 486.3 GWh |
| #83 | Pit 5 | Big Bend, CA | 472.5 GWh |
| #84 | Merwin | Ariel, WA | 471.6 GWh |
| #85 | Wolf Creek | Jamestown, KY | 470.5 GWh |
| #86 | Narrows (NC) | Badin, NC | 462.5 GWh |
| #87 | Cannelton Hydroelectric Plant | Hawesville, KY | 460.6 GWh |
| #88 | Ralston | Foresthill, CA | 459.9 GWh |
| #89 | Middle Fork | Foresthill, CA | 458.4 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Dion R Holm.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Angels | Angels Camp, CA | 7.2 GWh | 33.4 mi |
| Beardsley | None, CA | 82.7 GWh | 22 mi |
| Collierville Powerhouse | Murphys, CA | 495.9 GWh | 28.3 mi |
| Don Pedro | La Grange, CA | 377.1 GWh | 28.3 mi |
| Donnells | None, CA | 347.7 GWh | 24.5 mi |
| Exchequer | Snelling, CA | 250.6 GWh | 27.1 mi |
| La Grange | La Grange, CA | 8.2 GWh | 30.4 mi |
| Moccasin | Moccasin, CA | 277.9 GWh | 19.1 mi |
| Murphys | Murphys, CA | 17.8 GWh | 31.3 mi |
| New Melones | Jamestown, CA | 427.8 GWh | 30.8 mi |
| Pacific-Ultrapower Chinese Station | Jamestown, CA | 146.9 GWh | 27.9 mi |
| Phoenix | Sonora, CA | 6.7 GWh | 21.7 mi |
| R C Kirkwood | Groveland, CA | 416.7 GWh | 1.5 mi |
| Sand Bar Power Plant | Stanislaus Ntl. Fores, CA | 124.3 GWh | 22.3 mi |
| Sierra Pacific Chinese Camp | Chinese Camp, CA | 4.9 GWh | 26.6 mi |
| Sierra Pacific Sonora | Standard, CA | 34.0 GWh | 19.7 mi |
| Sonora 1 | Jamestown, CA | 2.7 GWh | 30.6 mi |
| Spring Gap | Long Barn, CA | 31.1 GWh | 21.5 mi |
| Stanislaus | Vallecito, CA | 334.5 GWh | 27.6 mi |
| Upper Dawson | La Grange, CA | 11.5 GWh | 32.3 mi |