Harry L. Oswald
Natural gas power plant · Pulaski County, Arkansas
Nameplate capacity
600 MW
Rank in Arkansas
#10
of 122 plants
In service since
2002
July 2002
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Arkansas Electric Coop Corp
- County
- Pulaski County
- Generating units
- 9
- Share of state capacity
- 3.13%
- Rank among natural gas plants in Arkansas
- #5 of 18
- EIA plant code
- 55221
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| G8 | Natural Gas Fired Combined Cycle | 105 MW | 95 MW | 2002 | Operating |
| G9 | Natural Gas Fired Combined Cycle | 105 MW | 95 MW | 2002 | Operating |
| G7 | Natural Gas Fired Combined Cycle | 84 MW | 76 MW | 2002 | Operating |
| G1 | Natural Gas Fired Combined Cycle | 51 MW | 47 MW | 2002 | Operating |
| G2 | Natural Gas Fired Combined Cycle | 51 MW | 47 MW | 2002 | Operating |
| G3 | Natural Gas Fired Combined Cycle | 51 MW | 47 MW | 2002 | Operating |
| G4 | Natural Gas Fired Combined Cycle | 51 MW | 47 MW | 2002 | Operating |
| G5 | Natural Gas Fired Combined Cycle | 51 MW | 47 MW | 2002 | Operating |
| G6 | Natural Gas Fired Combined Cycle | 51 MW | 47 MW | 2002 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Arkansas
| Dell Power Station | Natural gas | 679 MW |
| John W Turk Jr Power Plant | Coal | 609 MW |
| Flint Creek | Coal | 558 MW |
| Lake Catherine | Natural gas | 553 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 600 MW solar plant and a 600 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Arkansas power plants · What Arkansas actually generates