(A - E) (F - J) (K - O) (P - T) (U - Z)

  • Base Bill : The base bill is calculated by multiplying the rate from the electric rate by the level of consumption.
  • Base Load : The minimum load experienced by an electric utility system over a given period of time.
  • Base Load Unit : A generating unit that normally operates at a constant output to take all or part of the base load of a system.
  • Base Rate : The portion of the total electric or gas rate covering the general costs of doing business unrelated to fuel expenses.
  • Base Year : The first year of the period of analysis. The base year does not have to be the current year.
  • Baseline Forecast : A prediction of future energy needs which does not take into account the likely effects of new conservation programs that have not yet been started.
  • Baseload Capacity : Generating equipment operated to serve loads 24-hours per day.
  • Basic Service : The four charges for generation, transmission, distribution and transition that all customers must pay in order to retail their electric service.
  • Bilateral Contract : A direct contract between the power producer and user or broker outside of a centralized power pool.
  • Biomass : Plant materials and animal waste used as a source of fuel.
  • Blackout : A power loss affecting many electricity consumers over a large geographical area for a significant period of time.
  • British Thermal Unit (BTU) : The standard unit for measuring quantity of heat energy. It is the amount of heat energy necessary to raise the temperature of one pound of water one degree Fahrenheit.
  • Broadband Communications : The result of utilities forming partnerships to offer consumers "one-stop-shopping" for energy-related and high-tech telecommunications services.
  • Broker : A retail agent who buys and sells power. The agent may also aggregate customers and arrange for transmission, firming and other ancillary services as needed.
  • Brownout : A controlled power reduction in which the utility decreases the voltage on the power lines, so customers receive weaker electric current. Brownouts can be used if total power demand exceeds the maximum available supply. The typical household does not notice the difference.
  • Bulk Power Market : Wholesale purchases and sales of electricity.
  • Bulk Power Supply : Often this term is used interchangeably with wholesale power supply. In broader terms, it refers to the aggregate of electric generating plants, transmission lines, and related equipment. The term may refer to those facilities within one electric utility, or within a group of utilities in which the transmission lines are interconnected.
  • Buy Through : An agreement between utility and customer to import power when the customer's service would otherwise be interrupted.

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