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Nuclear power plant Arkansas Nuclear One-1

Nuclear power plant Arkansas Nuclear One-1

The Arkansas Nuclear One nuclear power plant (ANO) is located on Lake Dardanelle near Russellville, in the state of Arkansas, in the United States. It is the only nuclear power plant in the state of Arkansas.

The owner and operator of the nuclear plant is Entergy Nuclear.

The Arkansas nuclear power plant is composed of two pressurized water nuclear reactors.

  • Unit 1. The reactor of unit 1 has a power generation capacity of 846 MW. It was connected to the electricity grid on May 21, 1974. It is currently licensed to operate until May 20, 2034. Its nuclear reactor was supplied by Babcock & Wilcox. This unit does not have a cooling tower and releases the excess heat energy in Lake Dardanelle.
  • Unit 2. The reactor of unit 2 has a power generation capacity of 930 megawatts. It has been in operation since September 1, 1978. Its license to operate is extinguished on July 18, 2038. The nuclear reactor of Unit 2 was supplied by Combustion Engineering. Unit two is the only one from the Arkansas nuclear power plant that uses a cooling tower.

According to a study by NRK, published in August 2010, according to the Nuclear Regulatory Commission, the risk of an earthquake is quite small (1/243902) and can cause serious damage to the reactor.

Incident of March 2013

On March 31, 2013, an industrial accident at the facility killed one person and wounded eight other workers, including four seriously. The accident occurred "in an area without radiation, and there was no risk to public health and safety."

According to Entergy, the old stator of the Unit One generator. It fell during an operation to replace it. The component that fell broke a water pipe, causing the infiltration of water into the switching equipment of the nuclear plant, which eliminated the power supply of the entire electrical system of Unit One and one of the electrical system of Unit Two, which I was online at that time.

The power failure caused an automatic shutdown of Unit Two. The plant's emergency electric generators started and restored the energy of the emergency systems of both units. Unit One was in a nuclear fuel refill cut. Emergency diesel generators, water pumps, and feedwater operated after a loss of all off-site energy in Unit One, according to the NRC event notification.

The nuclear power plant was placed under a "classification of unusual events", which is the lowest of the four levels of emergency classification for abnormal events designated by the Federal Nuclear Regulatory Commission, which regulates US civil nuclear facilities.

One worker at the plant died and ten other injuries required medical treatment off-site. The company released an official statement of condolence. Entergy announced that they would begin repairs immediately to Unit Two and that they hope to have the unit back online within several weeks. Entergy also acknowledged that Unit One would be offline for a prolonged period of time while the company investigated the damage and established a schedule for repairs.

[Ambas unidades fueron reparadas y se pusieron en marcha el 7 de agosto de 2013, capaces de regresar a plena potencia. Durante la recuperación del incidente, una compañía de ingeniería especializada llamada Lowther-Rolton asistió en la recuperación del Estator existente y realizó una "Auditoría Técnica" de la ingeniería para levantar e instalar el nuevo Estator para garantizar la seguridad de operaciones Lowther-Rolton fueron los desarrolladores originales del sistema de auditoría técnica para las operaciones de movimiento de carga durante los años 80.]

Local population

The US Nuclear Regulatory Commission UU He identified two emergency zones around the nuclear power plant: the first zone (about 10 miles (16 km) around the nuclear power plant), the zone of radioactive damage and the second zone 50 miles (80 km) - the area associated with radioactive effects in food and water.

In 2010, the population within a radius of 10 miles (16 km) of the Arkansas nuclear power plants was 44.139 people. According to the United States census for 10 years, the population growth was 17.2 percent. In 2010, the population within a radius of 50 miles (80 km) was 308,219 people, the population growth was 13.3 percent, compared to 2000.

Reactor typePWR
Reactor modelB&W (L-loop) DRYAMB
Grid connection1974-08-17
OwnerEntergy Arkansas Inc.
OperatorEntergy Nuclear Operations, Inc.
CountryUnited States
ZoneLondon, Arkansas
valoración: 3 - votos 1

Last review: November 15, 2018

Nuclear power plants in United States