U.S. Nuclear Plants

Vermont Yankee
Vermont�

Unit 1�� Nuclear system supplied by General Electric Company (U.S.) �
Capacity Net MW(e)	Generation in 2003 Megawatthours	Capacity Factor	Type	On-line Date	License Expiration Date
P506	4,444,152	100 %	BWR	February 28, 1973	March 21, 2012

BWR= Boiling Water Reactor
P= Preliminary (note: the Entergy Corporation has applied to the U.S. Nuclear Regulatory Commission for a 20 percent increase in licensed capacity.)
Sources: Capacity (net summer capability): Energy Information Administration (EIA) survey form, EIA-860, “Annual Electric Generator Report,” Generation in 2003: EIA survey form EIA-906, (Delete: Capacity Factor in 2003: Platts: Nucleonics Week, a copyrighted publication, McGraw-Hill Company, February 12, 2004.

Description:� The plant is on a 125-acre site at Vernon, Vermont, in Windham County. In 2003, Vermont Yankee provided 4,444 million megawatt hours of electricity, 73.4 percent of the total electricity generation for the entire State (6,058 million megawatt hours). According to the 2004 Vermont Electric Plan, this was “about 35 percent of Vermont’s energy requirements and almost 28 percent of the peak capacity requirements of the State.”*

*This paragraph was revised to update the data and modified for clarity. We previously reported, “Typically, Vermont Yankee provides 80 percent of the electricity for the entire State.” This implied that 80 percent of the electricity consumed by Vermont was supplied by nuclear power. It was intended to refer to 80 percent of the electricity produced by electric utilities. With non-utilities included, it is slightly over 70 percent. As the Vermont Electric Plan indicates, it represented a little over a third of the State’s energy requirements. Our appreciation to Annette Smith for calling this to our attention, and our apologies for any confusion.

Ownership: Vermont Yankee is owned and operated by Entergy Nuclear Vermont Yankee LLC.

The Impact of the Nuclear Industry on Vermont

News item: Yankee OK with safety review
Highlights
Nuclear-provided Electricity Generation
Competition in the State Electricity Market
Environmental Trends: Emissions levels
Various Links to related sites.

Sources: Capacity, for purposes of this report, is the net summer capability as reported in Energy Information Administration (EIA) survey form 860, "Annual Electric Generator Report." Capacity Factor is a calculation in which the maximum possible generation (based on net summer capability) is divided into the actual generation than multiplied by 100 to get a percentage. Generation is the electricity output reported by plant owners on EIA survey form 902. Type of Unit: All U.S. commercial reactors currently in operation are one of two types: BWR (boiling water reactor) or PWR (pressurized light water reactor). The type is identified in EIA's Nuclear Power Generation and Fuel Cycle Report. Both the On-line Date and the License Expiration Date are reported annually in Information Digest by the U.S. Nuclear Regulatory Commission.

Contact: