599.5 MW Natural Gas operating in Pulaski, AR — Midcontinent Independent Transmission System Operator, Inc..
599.5 MW
Nameplate Capacity
9
Generators
units
Natural Gas Fired Combined Cycle
Technology
2002
Operating Since
Coordinates
34.5923, -92.2166
County
Pulaski, AR
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arkansas Electric Coop Corp | — | — |
| Owner(s) | Arkansas Electric Coop Corp | — | — |
| Status | Operating | — | — |
The Harry L. Oswald power plant is a 599.5 MW natural gas-fired combined cycle facility located in Pulaski County, Arkansas. It began operating in 2002 and is owned and operated by Arkansas Electric Cooperative Corporation. The plant consists of 9 generators utilizing natural gas as its primary fuel source. It is located within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC Reliability Corporation NERC region.
In the most recent year of record, the Harry L. Oswald plant generated 1,149,051 MWh of electricity, achieving a capacity factor of 21.8%. The plant ranks as the 5th largest out of 12 power plants in the state of Arkansas, and 404th out of 945 plants nationally. Recent news coverage of the plant includes 1 article related to industry trends and 1 article related to regulatory matters.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
500 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
39.2K MWh
Latest Month
1.1M MWh
Annual Generation
21.8%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Wrightsville Substation · 500 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
EAI.CC.AECCWRT
Pricing Hub
ARKANSAS.HUB
Node Source
EIA-860 direct report
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Last updated 2026-03-14
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