Preliminary 2025 facility recordOperating

Russellville, AR · EIA plant 8055

Arkansas Nuclear One

Arkansas Nuclear One is a nuclear power facility in Russellville, AR, with 1,845 MW of operating capacity.

Operating capacity1,845 MW2 operating generators
Proposed capacity0 MW0 proposed generators
UtilityEntergy Arkansas LLCEIA-reported operator
Balancing authorityMISOMidcontinent Independent Transmission System Operator, Inc..

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Nuclear1,845 MW
ProposedNo proposed capacity reported
Reported technologiesNuclear

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