South Carolina Electric & Gas Company (SCE&G), principal subsidiary of SCANA Corporation (NYSE:SCG), and its partners placed on Dec. 6 the CA05 structural module on the V.C. Summer Unit 2 nuclear island. This is one of several milestones achieved this year in the construction of nuclear reactors that are among the first in the U.S. in 30 years.
Weighing approximately 180,000 pounds, CA05 forms part of the chemical and volume control system tunnel and passive core cooling system walls within the containment vessel. It consists of reinforced steel plates that will be filled with concrete to provide structural support for the containment building, and the walls will separate multiple rooms in the containment building.
Approximately 3,300 Chicago Bridge & Iron and Westinghouse personnel and subcontractors are employed on the nuclear construction site in Fairfield County, S.C., where Unit 1 has operated safely and reliably for more than 30 years. State-owned utility Santee Cooper is a co-owner. The two 1,117-megawatt AP1000 units will add 600 to 800 permanent jobs when operational. Once the two units are complete, SCE&G anticipates its generation mix will be about 30 percent nuclear, 30 percent natural gas, and 30 percent scrubbed coal, with the balance in hydro, solar and biomass.