Preliminary 2025 facility recordOperating

Little Rock, AR · EIA plant 55221

Harry L. Oswald

Harry L. Oswald is a oil & gas power facility in Little Rock, AR, with 600 MW of operating capacity.

Operating capacity600 MW9 operating generators
Proposed capacity0 MW0 proposed generators
UtilityArkansas Electric Coop CorpEIA-reported operator
Balancing authorityMISOMidcontinent Independent Transmission System Operator, Inc..

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas600 MW
ProposedNo proposed capacity reported
Reported technologiesNatural Gas Fired Combined Cycle

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source