B-C

back fill

The material used to refill a ditch or other excavation, or the process of doing so.

backup power

Power provided by contract to a customer when that customer's normal source of power is not available.

banking

Energy delivered or received by a utility with the intent that it will be returned in kind in the future.

See also energy exchange.

barrel (bbl)

The amount fixed for a certain commodity; used as a measure, i.e., 42 gallons in the case of petroleum.

baseload

The minimum amount of electric power delivered or required during a given period at a constant rate.

baseload capacity

Capacity used to serve an essentially constant level of customer demand. Baseload generating units typically operate whenever they are available, and they generally have a capacity factor that is above 60%.

baseload unit

A generating unit operated close to its maximum output all the time it is available for service; generally, units whose energy costs are among the lowest on the system.

billing cycle

The time interval during which all meters of a class or subclass of customers are read. The reading of meters is generally distributed over a period of time (one or two months). A billing cycle comprises the time from the date the first customer of the group is read until the last customer is read.

billing demand

The demand upon which customer billing is based as specified in a rate schedule or contract. It may be based...

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The Handbook of Microturbine Generators

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