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Ancillary Services

Recently Published Ancillary Services Data

Download the latest reports on clearing prices in the Regulation Markets, reserve requirements, and reserve-zone prices and designations.
 

"Ancillary services" are a group of market services, such as reserves and regulation, that ensure reliability of the power system at all times and especially during periods of heavy demand or system emergencies. Like electricity, ancillary services are bought and sold through wholesale markets.
 

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    Ancillary Services
    Description Timestamp Download
    Five-Minute Reserve Zone Prices and Designations 09/20/2024 04:35 PM EDT CSV
    Five-Minute Reserve Requirements 09/20/2024 04:35 PM EDT CSV
    Five-Minute Regulation Clearing Prices 09/20/2024 04:35 PM EDT CSV
    Preliminary Hourly Reserve Zone Prices and Designations 09/20/2024 04:06 PM EDT CSV
    Hourly Reserve Requirements 09/20/2024 04:06 PM EDT CSV
    Final Hourly Reserve Zone Prices and Designations 09/20/2024 11:23 AM EDT CSV
    Final Hourly Regulation Clearing Prices 12/01/2017 09:53 AM EST CSV
    Preliminary Hourly Regulation Clearing Prices 12/01/2017 12:06 AM EST CSV