Sequoyah Nuclear Unit 1 Begins Scheduled Refueling, Maintenance Outage

Apr 12, 2021

SODDY-DAISY, Tenn. – The Tennessee Valley Authority’s Sequoyah Nuclear Plant Unit 1 started a scheduled refueling and maintenance outage early Saturday morning after generating over 13.5 billion kilowatt-hours of carbon-free energy in 494 days of operation.  

“This scheduled outage allows us to complete necessary work to ensure we continue delivering reliable, low-cost, carbon-free electricity to the people and businesses we serve,” said Tom Marshall, TVA Sequoyah site vice president. “The team will load 85 new nuclear fuel assemblies and perform key maintenance activities that can only be safely completed with the unit offline.”

According to Marshall, preparations for these refueling outages begin years in advance. Planning for this outage began more than three years ago, in December 2017, as part of the site’s standard work management practices to ensure all work can be completed safely and as scheduled. 

“We know that reliability matters, and Sequoyah’s highly-skilled workforce is making the most of this opportunity to ensure Unit 1 continues to operate safely and reliably until its next refueling outage about 18 months from now,” added Marshall.

Over 10,000 work activities are planned, including loading new fuel assemblies, performing inspections of reactor components, maintenance of plant equipment and installing unit enhancements.

In keeping with safe work practices and COVID-19 conditions, Sequoyah continues to take multiple and significant steps to help protect the health and well-being of employees and supplemental workers, including health screenings with the use of thermal scanning devices at plant entrance points, face-mask requirements and social distancing.

Sequoyah Unit 1 is one of seven operational TVA nuclear reactors across the Valley. TVA’s nuclear fleet is the third largest in the nation, safely and reliably providing more than 40% of all electricity used by nearly 10 million people in the Tennessee Valley.

For more information about TVA and its 87-year mission of service to the Tennessee Valley, click here.


Malinda Hunter
Public Relations
[email protected]

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