LOSS (LOSSES) - The general term applied to energy (kilowatt-hours) and power (kilowatts) lost in the operation of an electric system. Losses occur principally as energy transformations from kilowatt-hours to waste heat in electric conductors and apparatus.
Average - The total difference in energy input and output or power input and output (due to losses) averaged over a time interval and expressed either in physical quantities or as a percentage of total input.
Energy - The kilowatt-hours lost in the operation of an electric system.
Line - Kilowatt-hours and kilowatts lost in transmission and distribution lines under specified conditions.
Peak Percent - The difference between the power input and output, as a result of losses due to the transfer of power between two or more points on a system at the time of maximum load, divided by the power input.
System - The difference between the system net energy or power input and output, resulting from characteristic losses and unaccounted for between the sources of supply and the metering points of delivery on a system.
MARGIN OF RESERVE CAPACITY - See CAPABILITY MARGIN.
MAXIMUM DEMAND - See DEMAND, MAXIMUM.
MAXIMUM LOAD - See DEMAND, MAXIMUM.
MEGAWATT (MW) - 1,000 kilowatts. See WATT.
MEGAWATT-HOUR (MWH) - 1,000 kilowatt-hours. See KILOWATT-HOURS.
MUNICIPALLY-OWNED ELECTRIC SYSTEM - An electric utility system owned and/or operated by a municipality engaged in serving residential, commercial, and/or industrial customers, usually, but not always, within the boundaries of the municipality.
NAMEPLATE RATING - The full-load continuous rating of a generator, prime mover, or other electrical equipment under specified conditions as designated by the manufacturer. It is usually indicated on a nameplate attached to the individual machine or device. The nameplate rating of a steam electric turbine-generator wet is the guaranteed continuous output in kilowatts or KVA (kilovolt-amperes - 1,000 volt-amperes) and power factor at generator terminals when the turbine is clean and operating under specified throttle steam pressure and temperature, specified reheat temperature, specified exhaust pressure, and with full extraction from all extraction openings.
NET CAPABILITY - See CAPABILITY, NET GENERATING STATION.
NET ENERGY FOR LOAD - A term used in Federal Energy Regulatory Commission reports and comprising:
The net generation by the system's own plants, plus
Energy received from others (exclusive of receipts for borderline customers), less
Energy delivered for resale to those Class I and II systems which obtain a part of their power
supply from sources other than the company's system.