Unit 1 of the Arizona Public Service Palo Verde nuclear plant in Arizona was listed back at 100% power early Sept. 15, according to data from the Nuclear Regulatory Commission (NRC).
Palo Verde 1 had gone offline Sept. 7 after experiencing a problem with a stuck open main spray valve. The facility had returned to partial generation on Sept. 14, when it was listed by NRC at 31%.
The Pinnacle West Capital (NYSE:PNW) utility describes the Palo Verde nuclear station as the nation’s largest producer of emission-free energy.
In 2015, the three-unit nuclear complex generated 32.5 million megawatt-hours (MWh) of carbon-free electricity.
When operating fully, the three pressurized water reactors (PWRs) at the Palo Verde station in Maricopa County, Arizona can together generate about 5,000 MW.