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Decoupling is a regulatory mechanism designed to adjust future rates so that actual utility revenues match the revenues used to set...
Distribution lines can be configured in different ways depending on how they are wired into the transformer at the substation. Lines may...
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Demand (also called load) represents the power (measured in kW or MW) that a customer or group of customers is using at a given time....
A demand charge is based on the maximum usage by a customer within a given time frame and often varies from month to month. Most commonly...
Because electricity cannot be stored in transmission or distribution wires, electric providers must be prepared to service the total...
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Demand response, or DR, is a form of demand side management (DSM) that reduces demand during specific times or shifts demand across time....
DSM is the modification of consumer demand for energy and may be used to: reduce customer load during peak demand or during supply...
The United States Department of Energy is a cabinet-level executive department of the federal government responsible for energy policy...
The general concept behind depreciation is that most assets lose value over time. The loss of value comes through effects of wear and...
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The term deregulation describes modification of regulatory rules to provide for competition in certain sectors of the industry. In some...
Direct combustion is the controlled burning of biomass to create heat. The heat is then used to make steam, which spins a steam turbine...
There are two basic types of electrical current: direct current, or DC, and alternating current, or AC. In a direct current system, the...
A disallowance, also called a regulatory disallowance or cost disallowance, is an investor-owned utility expenditure that regulators do...
Electric dispatch is the act of a system operator instructing a supply resource to adjust its output to a specified level. Dispatch order...
A dispatch curve is a graph of variable operating costs for every available supply resource within a certain balancing authority area....
A distributed energy resource (DER) is a supply or storage resource that is located at an end-use consumer site or that is connected...
Distributed generation (DG) refers to generation that is located at an end-use consumer site or that is connected directly to the...
A distribution network operator, also called a DNO, is a distribution gas or electric utility that focuses solely on construction,...
By the mid 2010s, distribution utilities in many regions began the process of changing planning and design processes to account for...
Distribution substations receive high-voltage electricity from the transmission system, transform the voltage to distribution levels, and...
