Entergy (NYSE:ETR) took the Arkansas Nuclear One Unit 2 offline Sept. 20 to begin a regularly-scheduled refueling and maintenance outage at the facility in Russellville, Ark.
More than 1,100 additional workers are being brought in to help with the outage, Entergy said in a news release. Prior to the outage, ANO Unit 2 ran for 465 days of commercial operation, the company said.
Work will be completed by nearly 1,000 ANO full-time employees and supported by Entergy employees from its other nuclear plants and contract workers including pipefitters, millwrights, ironworkers, carpenters, boilermakers, electricians, laborers, valve technicians, engineers, operating engineers and radiation protection technicians, Entergy said.
ANO is investing more than $62.7m to complete the refueling and other important maintenance projects for Unit 2. ANO Unit 2 is on an 18-month refuel cycle.
ANO Unit 1 continues to run at 100% power while Unit 2 is down for refueling.
Arkansas Nuclear One Units 1 and 2 are both pressurized water reactors (PWRs). Together the two units have a generating capacity of roughly 1,800 MW.
There was a fatal heavy equipment accident at the Arkansas Nuclear One station in 2013. In June 2014 the Nuclear Regulatory Commission (NRC) issued two “yellow” findings, of substantial safety significance against Entergy after investigating the fatal accident.
According to NRC data, 10 of the 99 nuclear reactor units in the United States were at zero generation early Sept. 22. Nuclear units typically refuel during the shoulder months of spring or fall when demand tends to be lower.