Contractor Shaw Nuclear has begun testing a 560-ft. derrick at the Plant Vogtle Unit 3 & 4 construction site near Waynesboro, Ga. Built to install large reactor, cooling and turbine components for the $6.1 billion project, the derrick is engineered with a single-lift capacity to move the equivalent of five 747 jets a distance of nearly four football fields. Actual picks exceeding 1,000 tons are scheduled.
Southern Nuclear, a subsidiary of Atlanta-based Southern Co., will operate the Unit 3 & 4 reactors—1,100-megawatt Westinghouse AP1000 models—for sister company Georgia Power and three project partner utilities. Shaw Nuclear is supplying upward of 500,000 yd. of concrete for the project from a twin central mixed plant, with a fleet of about 15 mixer trucks (Concrete Products, March 2012 cover report). The new units are scheduled to begin producing electricity in 2016 and 2017.