Ancillary services

英文Ancillary services

中文 (征集中)


(1)A collection of secondary services offered to help ensure the reliability and availability of energy to consumers. It generally refers to any service related to provision (but not generation) of energy other than the use of transmission facilities. These services are typically offered by energy utilities and support companies and sold to wholesalers, producers and consumers. These services may include supplementary energy generation during peak demand periods, demand-side management (DSM), maintenance of replacement reserves, management of control systems that maintain steady system voltage, and a host of others. (2)Services needed to shift a large-scale customer (eg, a municipality or industrial consumer) from one energy supplier to another when the need arises, and they are usually (but not always) required as part of any wellrounded energy package negotiated with a large-scale consumer. Some types of ancillary services may be required by regional or national regulations when providing service for certain types of customers. (3)Service necessary to support the transmission of energy from resources to loads while maintaining reliable operation of the Transmission Provider’s transmission system in accordance with Good Utility Practice



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