Technical Overview

Plant Design Information

Type (BWR or PWR) & manufacturer: BWR 3/4 – Mark 1 containment

Manufacturer: General Electric

Cooling water source: Connecticut River with once through cooling towers (seasonal)

Primary Containment

Height: 105 feet 10 7/32 inches

Steel Liner Thickness: 11/16 to 2 1/2 inches

Concrete Reinforcement Thickness: 4 to 6 feet thick

Milestone Dates

Commercial operation: November, 1972

License renewal status: Nuclear Regulatory Commission renewed Vermont Yankee’s license for operation March 21, 2012 – March 21, 2032

Plant Operation

Maximum dependable capacity: 650 MW

Last power uprate of approximately 100 MW date: May 2006

Vermont Yankee produces power approximately equal to 80% of the total energy demand of Vermont

Number of employees: 650

Counties included in emergency planning zone. Windham County, VT  Franklin County, MA Cheshire County, NH