We take a look at an Arizona regulator at the center of a new investigation by the attorney general and an ASU project to reduce carbon dioxide pollution.
Palo Verde Nuclear Generating Station Cuts Power Output
The Palo Verde Nuclear Generating Station has cut power output at one of its reactors after a valve failed.
The Nuclear Regulatory Commission said a crew doing routine maintenance accidentally over-pressurized part of the steam valve’s controls, leaving one of the valves inoperative. Workers found the problem Wednesday afternoon, and the Unit 1 reactor was cut to 60 percent power.
An Arizona Public Service spokesman said it could take several days for the problem to be fixed. Engineers are already working on a tiny leak in the Unit 3 reactor that was found after the vessel was shut down for refueling in early October. Unit 3 is not expected to come back online until next month. Palo Verde is owned by APS and Salt River Project and provides power to more than 4 million customers around the Southwest.