Exelon starts refueling outage at Calvert Cliffs in Maryland

Exelon (NYSE:EXC) reported Feb. 15 that plant operators have removed Unit 1 of the Calvert Cliffs nuclear complex in Maryland from service early in the morning for a planned refueling and maintenance outage. Unit 2 remains at full power. 

During the outage, workers will replace about one-third of the reactor’s fuel and perform maintenance activities, tests and safety inspections on a variety of plant components and systems. Many of the activities performed during the outage cannot be accomplished while the unit is online.

Calvert Cliffs 1 had experienced a brief, unplanned outage during late January during a major East Coast winter storm.

Calvert Cliffs 1 held a refueling and maintenance outage in the late winter of 2014 that last 26 days, according to the Nuclear Energy Institute (NEI) website.

Calvert Cliffs is located on the western shore of the Chesapeake Bay in Calvert County and is Maryland’s only nuclear energy facility. The station is home to two pressurized water reactors (PWRs) capable of generating 1,756 MW combined. Units 1 and 2 began commercial operation in 1975 and 1977, respectively.

“Scheduled refueling outages allow us to update equipment, ensuring the plant uses the most up-to-date technology,” said Site Vice President George Gellrich. “To complete this important work, more than 1,500 additional nuclear professionals will be on-site, providing a crucial boost to the local economy during the winter season.”

About Wayne Barber 4201 Articles
Wayne Barber, Chief Analyst for the GenerationHub, has been covering power generation, energy and natural resources issues at national publications for more than 20 years. Prior to joining PennWell he was editor of Generation Markets Week at SNL Financial for nine years. He has also worked as a business journalist at both McGraw-Hill and Financial Times Energy. Wayne also worked as a newspaper reporter for several years. During his career has visited nuclear reactors and coal mines as well as coal and natural gas power plants. Wayne can be reached at wayneb@pennwell.com.