Langley Gulch Power Plant
Interstate 84 and Highway 30, New Plymouth, ID 83655Plant Summary Information
Langley Gulch Power Plant is ranked #2 out of 141 power plants in Idaho in terms of total annual net electricity generation.
Langley Gulch Power Plant is comprised of 2 generators and generated 583.0 GWh during the 3-month period between November 2025 to February 2026.
| Plant Name | Langley Gulch Power Plant |
|---|---|
| Utility Name | Idaho Power Co |
| Location | Payette County, ID |
| Initial Operation Date | June 2012 |
| Last Update | Feb 2026 |
| Annual Generation | 1.7 TWh |
| Annual Consumption | 14.4 M MMBtu |
| Ranked #554 out of 12,637 Power Plants Nationwide | |
| Ranked #345 out of 2,243 Natural Gas Power Plants Nationwide | |
| Ranked #2 out of 141 Idaho Power Plants | |
| Ranked #1 out of 9 Idaho Natural Gas Power Plants | |
| Fuel Types | Natural Gas |
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Monthly Net Generation for Langley Gulch Power Plant
Monthly Plant Fuel Consumption for Langley Gulch Power Plant
Langley Gulch Power Plant Details
| Summary Information | |
|---|---|
| Plant Name | Langley Gulch Power Plant (57028) |
| Plant Address | Interstate 84 and Highway 30, New Plymouth, ID 83655 |
| Utility | Idaho Power Co (9191) |
| Latitude, Longitude | 43.90444, -116.81972 |
| Generation Dates on File | Jun 2012 to Feb 2026 |
| Initial Operation Date | June 2012 |
| Annual Generation | 1.7 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 | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | WECC |
| Balancing Authority | Idaho Power Company (IPCO) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Snake River Plain Aquifer Well |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Idaho Power Co (9191) ID |
| Grid Voltage | 230.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Pipeline Name | NORTHWEST PIPELINE GP |
| Natural Gas Storage | No |
| Liquefied Natural Gas Storage | No |
Generator GTG Details Operating June 2012
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Combustion Turbine Part |
| Unit Code | LG1 |
| Ownership | Single Owner |
| Can Bypass Heat Recovery Steam Generator | No |
| RTO ISO LMP Node Designation | LGPR_2_G011_G012-APND |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | LGPR_2_G011_G012 |
| Nameplate Capacity | 187 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 186.77 MW |
| Winter Capacity | 202.21 MW |
| Minimum Load | 120 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | June 2012 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Startup 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 |
Generator STG Details Operating June 2012
| Technology | Natural Gas Fired Combined Cycle |
|---|---|
| Prime Mover | Combined Cycle Steam Part |
| Unit Code | LG1 |
| Ownership | Single Owner |
| Duct Burners | Yes |
| RTO ISO LMP Node Designation | LGPR_2_G011_G012-APND |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | LGPR_2_G011_G012 |
| Nameplate Capacity | 131.5 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 118.66 MW |
| Winter Capacity | 99.42 MW |
| Minimum Load | 23.7 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | June 2012 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Natural Gas |
| Startup 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 |
Langley Gulch Power Plant 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 Natural Gas.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #335 | Cunningham | Hobbs, NM | 1.8 TWh |
| #336 | Houston Chemical Complex Battleground | Houston, TX | 1.8 TWh |
| #337 | Bowline Point | West Haverstraw, NY | 1.8 TWh |
| #338 | Mystic Generating Station | Charlestown, MA | 1.8 TWh |
| #339 | Rockingham County CT Station | Reidsville, NC | 1.8 TWh |
| #340 | AES Huntington Beach Energy Project | Huntington Beach, CA | 1.8 TWh |
| #341 | Hopewell Cogeneration | Hopewell, VA | 1.8 TWh |
| #342 | Russell City Energy Center | Hayward, CA | 1.8 TWh |
| #343 | Salem Harbor Power Development LP | Salem, MA | 1.7 TWh |
| #344 | St Francis Energy Facility | Campbell, MO | 1.7 TWh |
| #346 | Nichols | Amarillo, TX | 1.7 TWh |
| #347 | Frederickson Power LP | Tacoma, WA | 1.7 TWh |
| #348 | Nueces Bay | Corpus Christi, TX | 1.7 TWh |
| #349 | Treasure Coast Energy Center | Ft. Pierce, FL | 1.7 TWh |
| #350 | Beaver | Clatskanie, OR | 1.7 TWh |
| #351 | West Lorain | Lorain, OH | 1.7 TWh |
| #352 | Luna Energy Facility | Deming, NM | 1.7 TWh |
| #353 | Cedar Bayou | Baytown, TX | 1.7 TWh |
| #354 | Mustang Station Unit 4 | Denver City, TX | 1.7 TWh |
| #355 | Moselle | Moselle, MS | 1.7 TWh |
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