MangumRetired
Greer County, Oklahoma · EIA plant ID 2991 · Operator: City of Mangum - (OK)
×7 MW natural gas retired since 2020 (latest Oct 2025)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online—
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 0.5 | 0.9% | 11,368 |
| 2002 | 0.3 | 0.5% | 20,337 |
| 2003 | 0.1 | 0.1% | 11,720 |
| 2004 | 0 | 0.1% | 13,677 |
| 2005 | 0 | 0.1% | 12,879 |
| 2006 | 1.6 | 2.9% | 11,874 |
| 2007 | -0.3 | -0.5% | — |
| 2008 | -0.3 | -0.6% | — |
| 2009 | 0.1 | 0.1% | 13,776 |
| 2010 | 0.1 | 0.1% | 13,721 |
| 2011 | 0.7 | 1.4% | — |
| 2013 | 0 | 0.1% | — |
| 2014 | 0 | 0.0% | — |
| 2015 | 0 | 0.1% | 17,500 |
| 2016 | 0 | 0.0% | 15,071 |
| 2017 | 0 | 0.0% | — |
| 2018 | 0 | 0.1% | 18,783 |
| 2019 | 0 | 0.1% | 12,658 |
| 2020 | 0 | 0.0% | 4,600 |
| 2021 | 0.2 | 0.3% | 18,411 |
| 2022 | 0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.0% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Internal Combustion Engine | IC | 1.1 | 0.9 | Jan 1946 | Retired Oct 2025 | — | coming soon |
| 2 | Natural Gas Internal Combustion Engine | IC | 0.6 | 0.5 | — | Retired Dec 2007 | — | coming soon |
| 3 | Natural Gas Internal Combustion Engine | IC | 0.4 | 0.2 | — | Retired Sep 2007 | — | coming soon |
| 4 | Natural Gas Internal Combustion Engine | IC | 1.5 | 1.2 | Jan 1956 | Retired Oct 2025 | — | coming soon |
| 5 | Natural Gas Internal Combustion Engine | IC | 2 | 1.7 | Jul 1963 | Retired Oct 2025 | — | coming soon |
| 6 | Natural Gas Internal Combustion Engine | IC | 2.1 | 1.6 | Nov 1969 | Retired Oct 2025 | — | coming soon |
Owner / operator
Operator: City of Mangum - (OK). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Seven Cowboy Wind Project, LLC | 302 MW | 52 km |
| Rocky Ridge Wind Project | 149 MW | 53.4 km |
| Kiowa County Solar Project, LLC | 100 MW | 54.8 km |
| North Fork Solar Project | 120 MW | 55.9 km |
| Little Elk Wind Project LLC | 74 MW | 64.3 km |
| Blue Summit Storage, LLC | 30 MW | 65.7 km |