Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/59284
EIA plant 59284
Oakwood · Dewey · OK
Mammoth Plains
Operated by Mammoth Plains Wind Project
Published location
Where is Mammoth Plains?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
35.978889, -98.710278
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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 OK 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.
153,964
280,350
376,280
478,571
554,026
659,853
750,755
842,872
935,974
1068,515
1173,754
1244,954
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 | 53,964 |
| 2 | 80,350 |
| 3 | 76,280 |
| 4 | 78,571 |
| 5 | 54,026 |
| 6 | 59,853 |
| 7 | 50,755 |
| 8 | 42,872 |
| 9 | 35,974 |
| 10 | 68,515 |
| 11 | 73,754 |
| 12 | 44,954 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 53,964 MWh |
| 2 | 80,350 MWh |
| 3 | 76,280 MWh |
| 4 | 78,571 MWh |
| 5 | 54,026 MWh |
| 6 | 59,853 MWh |
| 7 | 50,755 MWh |
| 8 | 42,872 MWh |
| 9 | 35,974 MWh |
| 10 | 68,515 MWh |
| 11 | 73,754 MWh |
| 12 | 44,954 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| GE1.7 | Onshore Wind Turbine | WND | 199 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
59284
Sector
IPP Non-CHP
Water source
Unavailable
Data edition
2024-final
Use this record
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 Mammoth Plains 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 Mammoth Plains
Variation in the published months
Across 12 numeric monthly generation entries, 2 has the highest recorded value (80,350 MWh) and 9 the lowest (35,974 MWh). Their difference is 44,376 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 |
|---|---|---|---|---|---|
| GE1.7 | Onshore Wind Turbine | 199.0 | 199.0 | 199.0 | 0.0 |
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.