NA Not available. Z Less than half the unit of measure.
1 As of yearend.
2 Net summer capability is the peak steady hourly output thatgenerating equipment is expected to supply to system load, exclusiveof auxiliary and other powerplant, as demonstrated by test at the timeof summer peak demand.
3 Weighted average of monthly capacity factors. Monthly factors are derived by dividing actual monthly generation by the maximum possiblegeneration for the month (hours in month times net maximum dependablecapacity).

Source: U.S. Energy Information Administration,Annual Energy Review.http://www.eia.doe.gov/fuelnuclear.html

Electric Utility: A corporation, person, agency, authority, or other legal entity orinstrumentality that owns and/or operates facilities within the United States, itsterritories, or Puerto Rico for the generation, transmission, distribution, or sale ofelectric energy primarily for use by the public and files forms listed in the Code ofFederal Regulations, Title 18, Part 141. Facilities that qualify as cogenerators orsmall power producers under the Public Utility Regulatory Policies Act (PURPA) arenot considered electric utilities.

Energy: The capacity for doing work as measured by the capability of doing work(potential energy) or the conversion of this capability to motion (kinetic energy).Energy has several forms, some of which are easily convertible and can be changedto another form useful for work. Most of the world's convertible energy comes fromfossil fuels that are burned to produce heat that is then used as a transfer medium tomechanical or other means in order to accomplish tasks. Electrical energy is usuallymeasured in kilowatthours, while heat energy is usually measured in British thermalunits.

Net Generation: Gross generation minus plant use from all electric utility ownedplants. The energy required for pumping at a pumped-storage plant is regarded asplant use and must be deducted from the gross generation.

Net Summer Capability: The steady hourly output, which generating equipment isexpected to supply to system load exclusive of auxiliary power, as demonstrated bytests at the time of summer peak demand.

Nuclear Fuel: Fissionable materials that have been enriched to such a compositionthat, when placed in a nuclear reactor, will support a self-sustaining fission chainreaction, producing heat in a controlled manner for process use.

Nuclear Power Plant: A facility in which heat produced in a reactor by the fissioningof nuclear fuel is used to drive a steam turbine.

Operable Nuclear Unit: A nuclear unit is :q.operable:eq. after it completeslow-power testing and is granted authorization to operate at full power. This occurswhen it receives its full power amendment to its operating license from the NuclearRegulatory Commission.

Power: The rate at which energy is transferred. Electrical energy is usually measuredin watts. Also used for a measurement of capacity.

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