The Dominion (NYSE:D) Surry 1 nuclear unit in Surry County, Va., was listed at 30% generation early May 28, according to Nuclear Regulatory Commission (NRC) data on reactor status.
Dominion had returned the unit to service one day earlier following a scheduled refueling and maintenance outage, which had started around April 18.
During the outage, one third of the reactor fuel was replaced with new fuel, and a number of complex maintenance activities were conducted, Dominion said in a statement distributed to employees. Also conducted were inspections that involved multiple components including the heat exchangers that generate steam to turn the turbines.
Also during the outage, two of the pumps that circulate water through the reactor were replaced, according to Dominion.
Surry Unit 1 had operated continuously during the previous 18-month cycle. This was the second of four refueling outages scheduled this year. North Anna, also located in Virginia, conducted a refueling outage on Unit 1 in March. Surry Unit 2 and Millstone Unit 2 in Connecticut will conduct refueling outages in the fall.
Surry Units 1 and 2 are both pressurized water reactors (PWRs) and each unit is listed with a nameplate capacity of about 850 MW, according to GenerationHub data.