Filed under: Uncategorized | Tags: Calvert Cliffs, Constellation, Electricite de France, energy, Exelon, high neutron flux, Limerick nuclear plant, Nine Mile, nuclear energy, nuclear power, Oconee, reactor, reactor core
Constellation Nuclear Energy Group’s 630-megawatt Nine Mile Point 1 nuclear reactor in New York automatically shut on Tuesday due to high neutron flux — meaning neutrons are not equally spread around the reactor core. Power traders guessed it could have been a faulty sensor and the unit could be back soon.
Constellation Nuclear is a venture between French power company Electricite de France SA (EDF) and Chicago power company Exelon Corp.
A unit at Exelon’s Limerick nuclear plant in Pennsylvania shut early Wednesday, according to power traders. Officials at the company and the U.S. Nuclear Regulatory Commission could not confirm the Limerick shutdown.
Constellation Nuclear 855-MW took the Unit 1 at the Calvert Cliffs nuclear plant in Maryland offline by early Wednesday due to a small leak in an instrument line. The company said it had already fixed the plant and was ramping up the unit.
North Carolina-based Duke Energy’s 846-MW Unit 1 at the Oconee nuclear plant in South Carolina also shut by early Wednesday. Details about the Oconee shutdown were not immediately available to comment.