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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.


ROE Complaint/Resettlement Update

On November 21, 2019 FERC issued Opinion 569 (ROE Docket EL14-12) which lowers the base ROE from 10.32% to 9.88%, and requires refunds for 2 periods: #1) 11/12/13 - 02/11/2015 & #2) 09/28/16 – 11/21/19.  Materials related to the Resettlement can be located below.

TO Matrix of ROE Refund Applicability

Related Documents






Rate changes were processed to incorporate a change in ROE per FERC Docket EL14-12 (Opinion 569A).


In addition, the following changes were made:


Schedule 2 - 

  • Per Docket ER19-585, Quilt Block Wind Farm LLC was added to the ATC-WPL (2C) zone
  • Per Docket ER19-1488, revenue requirements for SIGE units were reduced in the Vectren (23) zone
  • Per Docket ER20-1691- revenue requirement for AECC’s Bailey unit was prorated due to retirement in the Entergy Arkansas (28) zone.
  • Overall, the MISO Schedule 2 rate increased by 0.09%.      


Schedule 7, 8, & 9 – Per Docket ER20-1167, Republic Transmission LLC became a TO and is in the Vectren (23) zone.  Republic Transmission LLC assets affect only Schedule 26.


The overall impact on MISO system rates follows:

  • Schedule 2:                   0.09%  increase
  • Schedules 7, 8, & 9:      0.59% increase
  • Schedule 26:                 2.06% increase
  • Schedule 45:                 0.57% increase


Schedule 42B – ROE change resulting in increased rates: EAI increase 0.60%; ELL increase 0.57%; EMI increase 0.56%; ETI increase 0.59%.



These changes are effective July 1, 2020.



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.

General Documents