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Day-ahead energy refers to electricity scheduled in the day prior to the actual day of flow. The day ahead is the common point at which...
Distribution lines can be configured in different ways depending on how they are wired into the transformer at the substation. Lines may...
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....
Because electricity cannot be stored in transmission or distribution wires, electric providers must be prepared to service the total...
Demand response, or DR, is a form of demand side management (DSM) that reduces demand during specific times or shifts demand across time....
There are two basic types of electrical current: direct current, or DC, and alternating current, or AC. In a direct current system, the...
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...
Distribution lines include four types: Supply main This is the pipe that runs between the interconnection with the transmission system...
A distribution network operator, also called a DNO, is a distribution gas or electric utility that focuses solely on construction,...
Distribution pipe installed today may be steel or plastic. Typical pipe thickness is 1/8 inch to 1/4 inch for steel, and 1/2 inch or...
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...
With the growth of distributed energy resources (DERs) and the potential benefits of using DERs as grid resources, there is a greater...
With the growth of distributed energy resources (DERs), and their potential benefits as grid resources, there is a need for an entity to...
Hydropower plants that depend on river flows without a large reservoir are called a diversion or run-of-the-river facility. These...
The natural gas delivery chain comprises three groups: upstream (generally associated with the production aspect of the industry),...
The duck curve is the name given to the shape of the net load curve in a market with a significant penetration of solar energy. The net...
