Nuclear, Reactors, Retrofits & Upgrades

TVA’s Sequoyah nuclear unit 1 getting refuel, overhaul during outage

The Tennessee Valley Authority has shut down its Sequoyah Nuclear Plant’s Unit 1 for a scheduled refueling and maintenance outage.

The break comes after Sequoyah Unit 1 generated nearly 1.4 billion kWh of electricity over more than 500 days of operation.

“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.”

An additional 872 contract employees are supplementing the site’s regular staff during the scheduled outage. Over 11,443 work activities are planned, including loading new fuel assemblies, performing inspections of reactor components, maintenance of plant equipment and installing unit enhancements.

Sequoyah’s two units each can produce close to 1,160 MW at capacity. Unit 1 went into commercial operation in 1981 and Unit 1 a year later.

Sequoyah operates two of seven TVA nuclear reactors across the valley. Collectively, TVA’s nuclear fleet safely and reliably provides more than 40 percent of all electricity used by nearly 10 million people in the Tennessee Valley.