River Mill
Kilowatt Rd, Estacada, OR 97023Plant Summary Information
River Mill is ranked #23 out of 55 hydroelectric power plants in Oregon in terms of total annual net electricity generation.
River Mill is comprised of 5 generators and generated 21.2 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | River Mill |
|---|---|
| Utility Name | Portland General Electric Co |
| Location | Clackamas County, OR |
| Initial Operation Date | November 1911 |
| Last Update | Dec 2025 |
| Annual Generation | 77.3 GWh |
| Annual Consumption | 303.3 k MMBtu |
| Ranked #3,788 out of 13,081 Power Plants Nationwide | |
| Ranked #386 out of 1,311 Water Power Plants Nationwide | |
| Ranked #69 out of 275 Oregon Power Plants | |
| Ranked #23 out of 55 Oregon Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for River Mill
Monthly Plant Fuel Consumption for River Mill
River Mill Details
| Summary Information | |
|---|---|
| Plant Name | River Mill (3049) |
| Plant Address | Kilowatt Rd, Estacada, OR 97023 |
| Utility | Portland General Electric Co (15248) |
| Latitude, Longitude | 45.29999, -122.35002 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | November 1911 |
| Annual Generation | 77.3 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 | Portland General Electric Company (PGE) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Clackamas River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Portland General Electric Co (15248) OR |
| Grid Voltage | 57.00 kV |
| Energy Storage | No |
Generator 1 Details Operating November 1911
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | RMP1_7_GNODE1 |
| Nameplate Capacity | 3.3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 4.3 MW |
| Winter Capacity | 4.3 MW |
| Minimum Load | 2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | November 1911 |
| 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 |
| Multiple Fuels | No |
Generator 2 Details Operating December 1911
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | RMP1_7_GNODE1 |
| Nameplate Capacity | 3.3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 4.3 MW |
| Winter Capacity | 4.3 MW |
| Minimum Load | 2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | December 1911 |
| 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 |
| Multiple Fuels | No |
Generator 3 Details Operating January 1912
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | RMP1_7_GNODE1 |
| Nameplate Capacity | 3.3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 4.3 MW |
| Winter Capacity | 4.3 MW |
| Minimum Load | 2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | January 1912 |
| 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 |
| Multiple Fuels | No |
Generator 4 Details Operating December 1927
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | RMP1_7_GNODE1 |
| Nameplate Capacity | 3.9 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 5.2 MW |
| Winter Capacity | 5.2 MW |
| Minimum Load | 3 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | December 1927 |
| 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 |
| Multiple Fuels | No |
Generator 5 Details Operating May 1952
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | RMP1_7_GNODE1 |
| Nameplate Capacity | 5 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 6.6 MW |
| Winter Capacity | 6.6 MW |
| Minimum Load | 2.5 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1952 |
| 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 |
| Multiple Fuels | No |
River Mill Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
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| #385 | Swan Lake | Ketchikan, AK | 77.6 GWh |
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Below are closest 20 power plants surrounding River Mill.
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| Auburn Solar LLC (CSG) | Boring, OR | 4.2 GWh | 6.4 mi |
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| Colton Solar | Molalla, OR | 3.4 GWh | 10.8 mi |
| Day Hill Solar, LLC | Estacada, OR | 3.9 GWh | 2.4 mi |
| Dunn Road Solar | Sandy, OR | 2.8 GWh | 9.6 mi |
| Duus Solar, LLC | Estacada, OR | 19.1 GWh | 1.6 mi |
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| Firwood Solar, LLC | Sandy, OR | 19.9 GWh | 6 mi |
| Mompano | Beavercreek, OR | 3.2 GWh | 7.8 mi |
| North Fork | Estacada, OR | 164.0 GWh | 5.2 mi |
| NSE Astoria - Skyward | Boring, OR | 4.1 GWh | 8.9 mi |
| OR - Green Key - Buckner CSG | Oregon, OR | 847.0 MWh | 10.7 mi |
| OR - Solops - SPI 18 - Clayfield | Estacada, OR | 3.2 GWh | 2.6 mi |
| PHP 2 | Sandy, OR | 25.8 GWh | 14.1 mi |
| Sandy River Solar (CSG) | Sandy, OR | 2.3 GWh | 9.4 mi |
| SSD Clackamas 1, LLC | Boring, OR | 6.1 GWh | 8.3 mi |
| Sullivan | West Linn, OR | 84.6 GWh | 13.6 mi |
| SulusSolar17 | Oregon City, OR | 4.1 GWh | 5.3 mi |
| SulusSolar29 | Boring, OR | 3.8 GWh | 11.4 mi |
| Tickle Creek Solar | Sandy, OR | 2.9 GWh | 6.6 mi |