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Transmission Settlements and Pricing

The Monthly Transmission Settlements process financially settles Transmission Customers’ use of the MISO transmission system and our mandated, non-competitive Ancillary Services. Customer charges for transmission and Ancillary Services are calculated based upon the FERC-approved Tariff, and collected funds are distributed to Transmission Owners and providers of the mandated Ancillary Services. 

Transmission Settlements follows a calendar-month billing cycle by which MISO determines what charges Transmission Customers have incurred and the distribution of revenue to Transmission Owners and/or generators.  Customers also may count on us for technical assistance and support on MISO Transmission rate-related matters. Our processes provide non-discriminatory reviews of Attachments O, GG, MM, SS, and ZZ submissions annually.

Transmission Owner Loss Data  

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Find historical rates on OASIS

Related Documents

Attachments, Schedules and TO Data

Transmission rates are effective as of the date of their posting and will not reflect any retroactive adjustments due to FERC Orders or any other reasons.


Rate changes were processed to incorporate the following: 

  • Schedule 2
    • AECS retired Edgewater 4 from the ATC-WPL zone per docket ER18-2069.
    • Reduced the revenue requirements for Carville GT1, Carville GT2, and Carville ST in the Entergy Louisiana TPZ.  The Interim Implementation of their Settlement Agreement was approved in Docket ER18-554.
    • Increased the revenue requirement for the NIPSCO Sch. 2 fleet refresh per Docket ER18-1737.
    • MISO system-wide rates decreased 0.03%. 

These changes are effective October 1, 2018.

General Documents