Threemile Digester
75906 Threemile Road, Boardman, OR 97818Plant Summary Information
Threemile Digester is ranked #14 out of 17 natural gas power plants in Oregon in terms of total annual net electricity generation.
Threemile Digester is comprised of 3 generators and generated 9.1 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Threemile Digester |
|---|---|
| Utility Name | TMF-RIG, LLC |
| Location | Morrow County, OR |
| Initial Operation Date | December 2012 |
| Last Update | Dec 2025 |
| Annual Generation | 35.4 GWh |
| Annual Consumption | 423.4 k MMBtu |
| Ranked #4,631 out of 13,081 Power Plants Nationwide | |
| Ranked #1,209 out of 2,206 Natural Gas Power Plants Nationwide | |
| Ranked #90 out of 275 Oregon Power Plants | |
| Ranked #14 out of 17 Oregon Natural Gas Power Plants | |
| Fuel Types | Natural Gas |
| Previous Operator |
TMF Biofuels, LLC (2013 to 2023) TMF-RIG, LLC (2024 to 2025) |
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Monthly Net Generation for Threemile Digester
Monthly Plant Fuel Consumption for Threemile Digester
Threemile Digester Details
| Summary Information | |
|---|---|
| Plant Name | Threemile Digester (58382) |
| Plant Address | 75906 Threemile Road, Boardman, OR 97818 |
| Utility | TMF-RIG, LLC (66969) |
| Latitude, Longitude | 45.71, -119.90111 |
| Generation Dates on File | Jan 2013 to Dec 2025 |
| Initial Operation Date | December 2012 |
| Annual Generation | 35.4 GWh |
| Fuel Types | Natural Gas |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | Yes |
| FERC Small Power Producer Docket Number | QF11-486-000 |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | PacifiCorp - West (PACW) |
| NAICS Code | Utilities (22) |
| Sector | IPP CHP (3) |
| Water Source | Wells |
| Ash Impoundment | No |
| Transmission / Distribution Owner | PacifiCorp (14354) OR |
| Grid Voltage | 34.50 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Pipeline Name | TRANSCANADA - GAS TRANSMISSION NW |
| Natural Gas Storage | No |
| Liquefied Natural Gas Storage | No |
Generator GEN1 Details Operating December 2012
| Technology | Natural Gas Internal Combustion Engine |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.6 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 1.6 MW |
| Winter Capacity | 1.6 MW |
| Minimum Load | 0.8 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | December 2012 |
| Planned Retirement | March 2026 |
| Combined Heat & Power | Yes |
|---|---|
| Sector Name | IPP CHP (3) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator GEN2 Details Operating December 2012
| Technology | Natural Gas Internal Combustion Engine |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.6 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 1.6 MW |
| Winter Capacity | 1.6 MW |
| Minimum Load | 0.8 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | December 2012 |
| Planned Retirement | March 2026 |
| Combined Heat & Power | Yes |
|---|---|
| Sector Name | IPP CHP (3) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator GEN3 Details Operating December 2012
| Technology | Natural Gas Internal Combustion Engine |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.6 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 1.6 MW |
| Winter Capacity | 1.6 MW |
| Minimum Load | 0.8 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | December 2012 |
| Planned Retirement | January 2026 |
| Combined Heat & Power | Yes |
|---|---|
| Sector Name | IPP CHP (3) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | No |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Threemile Digester Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
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| #1215 | Niland Gas Turbine Plant | Niland, CA | 35.0 GWh |
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Nearby Power Plants
Below are closest 20 power plants surrounding Threemile Digester.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Arlington Wind Power Project | Arlington, OR | 199.4 GWh | 14.5 mi |
| Carty Generating Station | Boardman, OR | 3.3 TWh | 4.3 mi |
| Coyote Springs | Boardman, OR | 2.0 TWh | 14.5 mi |
| Coyote Springs II | Boardman, OR | 2.0 TWh | 14.5 mi |
| Finley Buttes Landfill Gas | Boardman, OR | 13.0 GWh | 14.1 mi |
| Horseshoe Bend Wind LLC | Arlington, OR | 626.8 GWh | 10 mi |
| Leaning Juniper | Arlington, OR | 269.5 GWh | 15.4 mi |
| Leaning Juniper Wind Power II | Arlington, OR | 296.5 GWh | 17.8 mi |
| Montague Solar | Arlington, OR | 341.0 GWh | 17.9 mi |
| Montague Wind Power Facility LLC | Arlington, OR | 495.2 GWh | 12.5 mi |
| North Hurlburt Wind LLC | Arlington, OR | 581.3 GWh | 8.9 mi |
| Pacific Canyon Windfarm LLC | Echo, OR | 16.8 GWh | 20.4 mi |
| Pebble Springs Wind LLC | Wasco, OR | 194.2 GWh | 10.8 mi |
| South Hurlburt Wind LLC | Arlington, OR | 612.0 GWh | 8.6 mi |
| Threemile Canyon | Boardman, OR | 17.8 GWh | 2.9 mi |
| Tower Solar, LLC | Boardman, OR | 35.7 GWh | 9.1 mi |
| Wheat Field Wind Power Project | Arlington, OR | 197.5 GWh | 20.3 mi |
| Wheatridge 1 | Lexington, OR | 243.0 GWh | 16.6 mi |
| Wheatridge Hybrid | Morrow, OR | 655.7 GWh | 16.6 mi |
| Willow Creek Energy Center | Lone, OR | 157.7 GWh | 5.9 mi |