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Nuclear Sites
Utility Owned:
Arkansas Nuclear One
Grand Gulf
River Bend
Waterford 3
Entergy Wholesale Commodities Owned:
Indian Point Energy Center
Vermont Yankee
Entergy Wholesale Commodities Management Services:
Arkansas Nuclear One

Arkansas Nuclear One

Arkansas Nuclear One is a source of safe, clean, secure and reliable power located in Russellville. The site is home to two pressurized water reactors. ANO Unit 1 began commercial operations December 19, 1974, followed less than six years later by Unit 2, which began commercial operations March 26, 1980. For more than 40 years, the station has provided low cost power to customers in Arkansas, including the River Valley. Together, the units have enough capacity to supply more than 60 percent of the total energy demand of Entergy's commercial and residential customers in Arkansas.

In addition to electricity, ANO also generates a significant positive economic impact in the River Valley. Entergy remains one of the area's premiere employers and attracts highly-skilled, well compensated workers who live and invest in the community. The station currently employs approximately 900 full-time workers and more than 100 baseline contractors employed to assist in daily plant activities.

One of Entergy's core values is a commitment to communities, and ANO employees maintain a strong presence in Russellville and the surrounding Arkansas River Valley area. Each year, grants totaling more than $100,000 are awarded to local non-profit organizations, and employees partner with Entergy Corporation to donate in excess of $200,000 to the River Valley United Way for distribution to its partner agencies.

Arkansas Nuclear One
Russellville, Ark.

Unit 1

Unit 2


Entergy Arkansas, Inc.

Entergy Arkansas, Inc.

Maximum Dependable Capacity: 836 MW 987 MW

Reactor Type:

Pressurized Water Reactor

Pressurized Water Reactor

Reactor Manufacturer:

Babcock and Wilcox

Combustion Engineering

Turbine Generator Manufacturer:


General Electric


Bechtel Power

Bechtel Power

Commercial Operation Date:



License Expiration Date:



Cooling Water Source: Illinois Bayou Recirculating-water system from
a 447-foot tall cooling tower
Number of Employees: 950 (Units 1 and 2)
Counties included in Emergency Planning Zone: Pope, Johnson, Yell and Logan

Environmental Impact

Generating electricity with nuclear energy prevents the emission of pollutants like sulfur dioxide (SO2) and nitrogen oxides (NOx) and greenhouse gases like carbon dioxide (CO2) associated with burning fossil fuels.

According to 2013 data, environmental emissions avoided due to nuclear power plant operation in Arkansas included 13,756 short tons of sulfur dioxide, 9,863 short tons of nitrogen oxide and 8.47 million metric tons of CO2.*

Emissions of SO2 lead to the formation of acid rain. NOx is a key precursor of both ground-level ozone and smog. Greenhouse gases like CO2 contribute to global warming.

* Source: Emissions avoided by nuclear power are calculated using regional fossil fuel emissions rates from the Environmental Protection Agency and plant generation data from the Energy Information Administration.