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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.

Related Documents


Rate changes were processed for the following items:

 Schedule 2

  • Per Docket ER19-1132, Cottonwood Tenant's Revenue Requirement was reduced, pending settlement proceedings.
  • Per Dockets ER15-502, ER15-1136, and ER14-2080, revenue requirements were reduced for Bayou Cove, Big Cajun 1, and Big Cajun 2, respectively, pending settlement proceedings.
  • Overall, the MISO Schedule 2 rate decreased by 0.79% 


Schedules 7,8 & 9

  • Otter Tail Power incorporated the 9.88% ROE impact authorized in EL14-12 to the Docket ER20-176 - Attachment O corrections processed in January, 2020.
  • The 5 Entergy Operating Companies (Arkansas, Louisiana, Mississippi, Texas, and New Orleans) removed Prepaid & Accrued Pension Cost & associated ADIT (Pension) from Rate Base impacts from their Attachment Os in compliance with the order issued in ER15-1436.
  • Overall, the MISO Schedule 7/8/9 rate decreased by 0.12% 


Schedule 26, 37, & 38

  • Otter Tail Power incorporated the 9.88% ROE impact authorized in EL14-12 to the Docket ER20-175 - Pre-2018 Error Corrections on Attachment GG corrections processed in January, 2020.
  • Overall, the MISO Schedule 26 rate decrease was negligible.   

 These changes are effective February 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