Transmission Settlements Notices

Stay informed of changes to transmission rates and review billing cycle communications. Rate updates are posted monthly, reflecting any changes from the prior month. Billing cycle notices will be posted when statements are available for download on the portal. Learn which months are being resettled and know what to expect in the current and upcoming billing cycles.  

June 2026 Rate Changes

    Rate changes were processed for the following item: 

    Schedule 1:

    • Updated Schedule 1 expense amounts for Historical Transmission Owners. Updated divisors from the Attachment Os.

     

    • The MISO average rate increased .355%.

     

    Schedules 7, 8 & 9:

    • Annual Rate Update of Annual Transmission Revenue Requirement (ATRR) for Historical Transmission Owners, Updated divisors from the Attachment Os.

     

    • The MISO average rate decreased by -1.2%.

     

    Schedules 26, 37 & 38:

    • Annual Rate Update of Attachment GG Annual Transmission Revenue Requirement (ATRR) for Historical Transmission Owners, Updated divisors from the Attachment Os.

     

    • The MISO average rate decreased by -2.312%.

     

    Schedule 26A:

    • Annual Rate Update of Attachment MM Annual Transmission Revenue Requirement (ATRR) for Historical Transmission Owners, Updated divisors from the Attachment Os.

     

    • The overall Revenue Requirement decreased by -0.04%.

     

    Schedule 26C:

    • Annual Rate Update of Attachment MM Annual Transmission Revenue Requirement (ATRR) for Historical Transmission Owners, Updated divisors from the Attachment Os.

     

    • The overall Revenue Requirement decreased by -11.77%.

     

    Schedule 26D:

    • Rate Update of Annual Transmission Revenue Requirement (ATRR) for select number of forward-looking Transmission Owners to incorporate their 2024 True-Up adjustment at the correct ROE.

     

    • TOs include: FE

     

    • The overall Revenue Requirement increased by 0.001%.

    Schedule 26E:

     

    • Rate Update of Annual Transmission Revenue Requirement (ATRR) for select number of forward-looking Transmission Owners to incorporate their 2024 True-Up adjustment at the correct ROE.

     

    • TOs include: NIPS

     

    • The overall Revenue Requirement did not change.

     

     

    Schedule 33:

     

    • Ludington units 2, 3, & 5 were removed from rates, per Docket Number ER25-2771.

     

    • Updated the Blackstart Service Revenue Requirement for participating Blackstart units. Updated the divisors for the Historical Transmission Owners as part of the June Rate Update.

     

    • The overall Revenue Requirement decreased by -0.093%.

     

    Schedule 41:

     

    • Annual update of Annual Transmission Revenue Requirement (ATRR) for Historical Transmission Owners. Updated the divisors for the Historical Transmission Owners as part of the June Rate Update.

     

    • The overall Revenue Requirement decreased by -3.77%.

     

    Schedule 42B:

     

    • Annual update of Annual Transmission Revenue Requirement (ATRR) for historical Transmission Owners. Updated the divisors for the Historical Transmission Owners as part of the June Rate Update.

     

    • The overall Revenue Requirement decreased by -3.92%.

     

    Schedule 45:

     

    • Updated the divisors for the Historical Transmission Owners as part of the June Rate Update.

     

    • The MISO system average rate decreased by -2.09%.

     

    Effective June 1, 2026

     

    June 2026 Billing Cycle

    Preliminary transmission (Day 1) monthly settlement files for June 2026 will be posted to the market portal by 8am July 2, 2026. The files end with _D2.txt or _D2.xlsx

    Final transmission (Day 1) monthly settlement files for June 2026 will be posted to the market portal by 8am July 8, 2026. The files end with _TS0.txt or _TS0.xlsx

     

    The full schedule of 2026 billing cycle key dates is posted here.

    https://cdn.misoenergy.org/2026%20Transmission%20Settlements%20Billing%20Cycle%20Key%20Dates666671.pdf?v=20241212093257

     

     

    YEAR

    TS0

    TS1

    R3

    TS4

    TS8

    TS12

    R16

    2026

    Jun-26

    May-26

    Mar-26

    Feb-26

    Oct-25

    Jun-25

    Feb-25

     

     

    June 2026 Prior Period Adjustments

    Continuing error secondary redirects from zero rate zone

    ·        February 2025

    ·        Affects Schedules 1, 8, 26, 33 and 45 for customer MAG and revenue recipients

    ·        No interest will be applied

    ·        Adjustments will be found on the Feb-25 settlement instance tab

    SHECO Attachment O correction – ER26-628

    ·        February – March 2026

    ·        Affects Schedules 7,8,9 for customers in the ETTO pricing zone and out/through

    ·        No interest will be applied

    ·        Adjustments will be found on each settlement instance tab

     

     

    Updated 6/29/2026

    July 2026 Prior Period Adjustments

    ·        None at this time.

     

    Disclaimer: Adjustments and timing are subject to change.

     

    Updated 6/29/2026