Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/57028
EIA plant 57028
New Plymouth · Payette · ID
Langley Gulch Power Plant
Operated by Idaho Power Co
Published location
Where is Langley Gulch Power Plant?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
43.904444, -116.819722
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the ID plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
1214,589
2190,145
3199,458
454,344
51,355
6159,971
7195,167
8193,409
9188,883
1055,475
11183,265
12190,879
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 214,589 |
| 2 | 190,145 |
| 3 | 199,458 |
| 4 | 54,344 |
| 5 | 1,355 |
| 6 | 159,971 |
| 7 | 195,167 |
| 8 | 193,409 |
| 9 | 188,883 |
| 10 | 55,475 |
| 11 | 183,265 |
| 12 | 190,879 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 214,589 MWh |
| 2 | 190,145 MWh |
| 3 | 199,458 MWh |
| 4 | 54,344 MWh |
| 5 | 1,355 MWh |
| 6 | 159,971 MWh |
| 7 | 195,167 MWh |
| 8 | 193,409 MWh |
| 9 | 188,883 MWh |
| 10 | 55,475 MWh |
| 11 | 183,265 MWh |
| 12 | 190,879 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| GTG | Natural Gas Fired Combined Cycle | NG | 187 | OP |
| STG | Natural Gas Fired Combined Cycle | NG | 131.5 | OP |
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Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
57028
Sector
Electric Utility
Water source
Snake River Plain Aquifer Well
Data edition
2024-final
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Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right Langley Gulch Power Plant power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at Langley Gulch Power Plant
Variation in the published months
Across 12 numeric monthly generation entries, 1 has the highest recorded value (214,589 MWh) and 5 the lowest (1,355 MWh). Their difference is 213,234 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| GTG | Natural Gas Fired Combined Cycle | 187.0 | 186.77 | 202.21 | 120.0 |
| STG | Natural Gas Fired Combined Cycle | 131.5 | 118.66 | 99.42 | 23.7 |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.