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In electric power distribution, a service drop is an overhead electrical line running from a utility pole, to a customer's building or other premises. It is the point where electric utilities provide power to their customers. [1] The customer connection to an underground distribution system is usually called a "service lateral".
These three wires run down the service drop to the building's electric meter and service panel. Connecting a load between the hot wire and the neutral gives 120 volts, which is used for lighting circuits. Connecting both hot wires gives 240 volts for heavy loads such as air conditioners, ovens, dryers, and electric vehicle charging stations.
The opposite of firm service is non-firm service, also called interruptible service or as-available service. The cost per unit for this service is called a non-firm rate or interruptible rate . The interruptible load is the portion of a utility's load that comes from customers with interruptible service.
A power purchase agreement (PPA), or electricity power agreement, is a long-term contract between an electricity generator and a customer, usually a utility, government or company. [ 1 ] [ 2 ] PPAs may last anywhere between 5 and 20 years, during which time the power purchaser buys energy at a pre-negotiated price.
In electric power transmission, wheeling is the transmission of power from one system to another through the third-party interconnecting network. [1] [2] [3] The wheeling provider, or utility, receives compensation for the service and for electricity losses incurred in the transmission.
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The standardized service contract is a software design principle [1] applied within the service-orientation design paradigm to guarantee that service contracts [2] within a service inventory [3] (enterprise or domain) adhere to the same set of design standards. [4] This facilitates standardized service contracts across the service inventory. [5]
In the electric power industry, a transmission service request is an application requesting a transmission-owning utility to allocate physical capacity in the form of transmission service rights (TSRs) for the transmission of electric power.