Glossary by "V"

  • 596

    Value proposition

    One or more individual benefits associated with a specific use.  A value proposition is said to be attractive if the total value of all benefits exceeds all costs, including required return on investment, if any.  

    Source: ESA Technical Working Group
  • 597

    Variable cost

    Costs which change in proportion to the amount of energy generated or used. Variable costs may be associated with the cost for fuel, variable operating expenses, variable equipment and facility maintenance and depreciation from equipment wear.  

    Source: ESA Technical Working Group
  • 598

    Vertically integrated utility

    A utility that owns and operates all elements of the utility infrastructure and that provides all customer services.

    Source: ESA Technical Working Group
  • 599

    Virtual power plant

    Acronym(s): VPP

    A combination of electric resources including distributed generation and storage and demand response that can be aggregated and operated in concert such that they operate as if they were one entity (i.e. a virtual power plant). The aggregated resources may be used to manage the supply and demand balance and/or they may used as a merchant or wholesale electric resource.

    Source: ESA Technical Working Group
  • 600

    Volt/VAR Control

    In electric power transmission and distribution, volt-ampere reactive (var) is a unit used to measure reactive power in an AC electric power system. VAR control manages the reactive power, usually attempting to get a power factor near unity (1).  

  • 601

    Volt/VAR Optimization

    VAR optimization manages the reactive power, usually attempting to get a power factor near unity (1).

  • 602

    Voltage conservation

    See: Conservation voltage reduction