Hermiston Generating Plant
78145 Westland Road, Hermiston, OR 97838Plant Summary Information
Hermiston Generating Plant is ranked #7 out of 249 power plants in Oregon in terms of total annual net electricity generation.
Hermiston Generating Plant is comprised of 4 generators and generated 852.5 GWh during the 3-month period between December 2024 to March 2025.
| Plant Name | Hermiston Generating Plant |
|---|---|
| Utility Name | Hermiston Generating Co LP |
| Location | Umatilla County, OR |
| Initial Operation Date | June 1996 |
| Last Update | Mar 2025 |
| Annual Generation | 3.3 TWh |
| Annual Consumption | 27.4 M MMBtu |
| Ranked #358 out of 11,623 Power Plants Nationwide | |
| Ranked #209 out of 2,187 Natural Gas Power Plants Nationwide | |
| Ranked #7 out of 249 Oregon Power Plants | |
| Ranked #3 out of 18 Oregon Natural Gas Power Plants | |
| Fuel Types | Natural Gas |
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Monthly Net Generation for Hermiston Generating Plant
Hermiston Generating Plant Details
| Summary Information | |
|---|---|
| Plant Name | Hermiston Generating Plant (54761) |
| Plant Address | 78145 Westland Road, Hermiston, OR 97838 |
| Utility | Hermiston Generating Co LP (8503) |
| Latitude, Longitude | 45.8042, -119.37 |
| Generation Dates on File | Jan 2001 to Mar 2025 |
| Initial Operation Date | June 1996 |
| Annual Generation | 3.3 TWh |
| Fuel Types | Natural Gas |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | Yes |
| FERC Exempt Wholesale Generator Docket Number | 96-70-000 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | PacifiCorp - West (PACW) |
| NAICS Code | Utilities (22) |
| Sector | IPP CHP (3) |
| Water Source | Columbia River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Bonneville Power Administration (1738) OR |
| Grid Voltage | 230.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Local Distribution Company (LDC) | CASCADE NAT GAS CORP |
| Natural Gas Storage | No |
| Liquefied Natural Gas Storage | No |
Generator GEN1 Details Operating June 1996
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | CC1 |
| Ownership | Jointly Owned |
| Duct Burners | No |
| Nameplate Capacity | 106.1 MW |
| Nameplate Power Factor | 0.98 |
| Summer Capacity | 80 MW |
| Winter Capacity | 83 MW |
| Minimum Load | 65 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 1996 |
|---|---|
| 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 |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator GEN2 Details Operating June 1996
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | CC1 |
| Ownership | Jointly Owned |
| Can Bypass Heat Recovery Steam Generator | No |
| Nameplate Capacity | 204.5 MW |
| Nameplate Power Factor | 0.98 |
| Summer Capacity | 152 MW |
| Winter Capacity | 160 MW |
| Minimum Load | 99 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 1996 |
|---|---|
| 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 |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator GEN3 Details Operating June 1996
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | CC2 |
| Ownership | Jointly Owned |
| Duct Burners | No |
| Nameplate Capacity | 106.1 MW |
| Nameplate Power Factor | 0.98 |
| Summer Capacity | 80 MW |
| Winter Capacity | 83 MW |
| Minimum Load | 65 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 1996 |
|---|---|
| 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 |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator GEN4 Details Operating June 1996
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | CC2 |
| Ownership | Jointly Owned |
| Can Bypass Heat Recovery Steam Generator | No |
| Nameplate Capacity | 204.5 MW |
| Nameplate Power Factor | 0.98 |
| Summer Capacity | 152 MW |
| Winter Capacity | 160 MW |
| Minimum Load | 99 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | June 1996 |
|---|---|
| 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 |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Hermiston Generating Plant Plant Owners
| Owner Name | Address | Generator | Ownership |
|---|---|---|---|
| Hermiston Generating Co LP | 78145 Westland Rd, Hermiston, OR 97838 | Generator GEN1 | 50.00% |
| PacifiCorp | 825 NE Multnomah, Suite 600, Portland, OR 97232 | Generator GEN1 | 50.00% |
| Hermiston Generating Co LP | 78145 Westland Rd, Hermiston, OR 97838 | Generator GEN2 | 50.00% |
| PacifiCorp | 825 NE Multnomah, Suite 600, Portland, OR 97232 | Generator GEN2 | 50.00% |
| Hermiston Generating Co LP | 78145 Westland Rd, Hermiston, OR 97838 | Generator GEN3 | 50.00% |
| PacifiCorp | 825 NE Multnomah, Suite 600, Portland, OR 97232 | Generator GEN3 | 50.00% |
| Hermiston Generating Co LP | 78145 Westland Rd, Hermiston, OR 97838 | Generator GEN4 | 50.00% |
| PacifiCorp | 825 NE Multnomah, Suite 600, Portland, OR 97232 | Generator GEN4 | 50.00% |
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Nearby Power Plants
Below are closest 20 power plants surrounding Hermiston Generating Plant.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Big Top LLC | Echo, OR | 3.2 GWh | 11.3 mi |
| Butter Creek Power LLC | Echo, OR | 10.2 GWh | 7.5 mi |
| Carty Generating Station | Boardman, OR | 3.1 TWh | 22.6 mi |
| Coyote Springs | Boardman, OR | 2.0 TWh | 14.9 mi |
| Coyote Springs II | Boardman, OR | 2.3 TWh | 14.9 mi |
| Finley Buttes Landfill Gas | Boardman, OR | 32.4 GWh | 14 mi |
| Four Corners Windfarm LLC | Echo, OR | 17.0 GWh | 5.7 mi |
| Four Mile Canyon Windfarm LLC | Echo, OR | 17.3 GWh | 11.7 mi |
| Hermiston Power Partnership | Hermiston, OR | 4.4 TWh | 2.8 mi |
| McNary | Umatilla, OR | 3.6 TWh | 10 mi |
| McNary Dam Fish Attraction Project | Plymouth, WA | 73.8 GWh | 10 mi |
| Nine Canyon | Kennewick, WA | 194.7 GWh | 24.1 mi |
| NorWest Energy 9 LLC | Pendleton, OR | 11.4 GWh | 7.9 mi |
| Oregon Trail Windfarm LLC | Echo, OR | 21.2 GWh | 6.6 mi |
| Pacific Canyon Windfarm LLC | Echo, OR | 16.0 GWh | 11.8 mi |
| Sand Ranch Windfarm LLC | Echo, OR | 19.2 GWh | 12.2 mi |
| Wagon Trail LLC | Echo, OR | 6.2 GWh | 11.4 mi |
| Ward Butte Windfarm LLC | Echo, OR | 14.2 GWh | 7.7 mi |
| Wheatridge 1 | Lexington, OR | 284.0 GWh | 21.2 mi |
| Wheatridge Hybrid | Morrow, OR | 711.9 GWh | 21.2 mi |