Sequoyah Nuclear Plant

Sequoyah Nuclear Plant
Sequoyah Nuclear Generating Station.jpg
CountryUnited States
LocationHamilton County, near Soddy-Daisy, Tennessee
Coordinates35°13′35″N 85°5′30″W / 35°13′35″N 85°5′30″W / 35.22639; -85.09167
Commission dateUnit 1: July 1, 1981
Unit 2: June 1, 1982
Construction cost$3.455 billion (2007 USD)[1]
Owner(s)Tennessee Valley Authority
Operator(s)Tennessee Valley Authority
Nuclear power station
Reactor typePWR
Reactor supplierWestinghouse
Cooling towers2 × Natural Draft
(supplemental only)
Cooling sourceChickamauga Lake
Thermal capacity2 × 3455 MWth
Power generation
Units operational2 × 1220 MW
Make and modelWH 4-loop (ICECND)
Nameplate capacity2440 MW
Capacity factor91.38% (2017)
75.50% (lifetime)
Sequoyah Nuclear Plant
CommonsRelated media on Commons

The Sequoyah Nuclear Plant is a nuclear power plant located on 525 acres (212 ha) located 7 miles (11 km) east of Soddy-Daisy, Tennessee, and 20 miles (32 km) north of Chattanooga, abutting Chickamauga Lake, on the Tennessee River. The facility is owned and operated by the Tennessee Valley Authority (TVA).

The plant has two Westinghouse pressurized water reactors. Sequoyah units 1 & 2, as well as their sister plant at Watts Bar, both have ice condenser containment systems. In case of a large loss-of-coolant accident, steam generated by the leak is directed toward borated ice which helps condense the steam creating a lower pressure, allowing for a smaller containment building.

Description

Sequoyah's two units have a winter net dependable capacity of 2,440 megawatts,[2] making Sequoyah the most productive of TVA's three nuclear plants. Sequoyah is the second-most powerful power plant in Tennessee, second only to the Cumberland Fossil Plant northwest of Nashville, but actually generates more power.[3] Following the restart of Brown's Ferry Unit 1, that plant again became most productive at 3,440 MW.

TVA constructed dry cask storage facilities at Sequoyah and purchased special storage containers for the purpose of storing spent nuclear fuel. The storage facilities have been approved by the NRC.[2]