The final module for Georgia Power's Vogtle Unit 3, a massive water tank, has been placed atop the containment vessel and shield building roof at the company's Vogtle 3 & 4 nuclear expansion project near Waynesboro, Georgia. The installation represents the final module placement for Unit 3, marking another significant milestone for the project.
The large module, known as CB-20, is a major part of the AP1000 reactor's advanced passive safety system. Standing 35 feet tall and weighing more than 720,000 pounds, the large component will hold approximately 750,000 gallons of water ready to flow down in the unlikely event of an emergency to help cool the reactor. The water can also be directed into the used fuel pool, while the tank itself can be refilled from water stored elsewhere on site.
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