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Home Markets and Operations Settlements Transmission Settlements and Pricing Transmission Owner Loss Data

TO Loss Data

Pursuant to FERC Docket No. ER15-197 that was effective on January 1, 2015, each reporting entity or Host Transmission Owner in MISO will update its transmission line loss percentage coincident with its annual Attachment O update and provide that information to MISO. Loss percentages are effective for 12 months.  Entities that have not participated in the MISO market long enough to accumulate 12 months of S105 statements will provide a loss percentage and a methodology to MISO for approval.

Host Transmission Owners and Reporting Entities submit percentages based on whether they use forward looking data or historical data. Loss data for forward looking entities is due by January One of their rate year.  Loss data for historical pricing entities is due by June 30 of their current rate year. 

 

                                                                                                                                                               Updated January 9, 2023

Zone

Transmission Owner

Forward
Looking

 Historical

   Loss %

   Effective
   Date

1

 ITC Midwest (ITCM)

      X

 

      5.6766

   1/1/2023

2A

 ATCLLC - Madison Gas and Electric (MGE)

      X

 

      1.9900

  10/1/2022

2B

 ATCLLC - Wisconsin Public Service Corporation (WPS)

      X

 

      1.9900

  10/1/2022

2C

 ATCLLC - Wisconsin Power & Light Company (ALTE)

      X

 

      1.9900

  10/1/2022

2D

 ATCLLC - Wisconsin Energy Corporation (WEC)

      X

 

      1.9900

  10/1/2022

2E

 ATCLLC - Upper Peninsula Power Company (UPPC)

      X

 

      1.9900

  10/1/2022

3A

 Ameren Illinois (AMIL)

      X

 

      2.1600

  1/1/2023

3B

 Ameren Missouri (AMMO)

 

        X

      2.4500

  6/1/2022

5

 Cinergy Services (DEI only including IMPA and WVPA) (CIN)

 

        X

      3.0352

  6/1/2022

6

 City of Columbia, MO (CWLD)

 

        X

0.7708

  6/1/2022

7

 City Water, Light & Power (Springfield, Illinois)  (CWLP)

 

        X

0.5085

  6/1/2022

8

 Great River Energy (GRE)

      X

 

     1.1754

  1/1/2023

9

 Hoosier Energy (HE)

 

        X

     3.4000

  6/1/2022

10

 International Transmission Company (DECO)

      X

 

    2.2261

  1/1/2023

11

 Indianapolis Power & Light Company (IPL)

 

        X

     1.6100

  6/1/2022

13

 Michigan Joint Zone (CONS)

      X

        X

     3.3705

  1/1/2023

14

 Minnesota Power (MP)

      X

 

     1.8700

  1/1/2023

15

 Montana-Dakota Utilities Co. (MDU)

      X

 

     1.5797

  1/1/2023

16

 NSP Companies (NSP)

      X

 

     4.380

  1/1/2023

17

 Northern Indiana Public Service Company (NIPS)

      X

 

     1.9961

  1/1/2023

18

 Otter Tail Power Company (OTP)

      X

 

    5.2066

  1/1/2023

19

 Southern Illinois Power Cooperative (SIPC)

 

        X

2.5808

  6/1/2022

20

 Southern Minnesota Municipal Power Agency (SMP)

 

        X

1.0651

  6/1/2022

23

 Vectren Energy (SIGE)

      X

 

 1.9760

  1/1/2023

24

 MidAmerican Energy Company (MEC)

      X

 

3.3715

  1/1/2023

25

 Muscatine Power and Water (MPW)

 

        X

 0.5790

  6/1/2022

26

 Dairyland Power Cooperative (DPC)

      X

 

5.4768

  1/1/2023

27

 Big Rivers Electric Corporation (BREC)

 

        X

 2.2287

  6/1/2022

28

 Entergy Arkansas, Inc. (EATO)

 

        X

 2.2492

  6/1/2022

29

 Entergy Louisiana, LLC (ELTO)

 

        X

 1.7920

  6/1/2022

30

 Entergy Mississippi, Inc. (EMTO)

 

        X

 2.3625

  6/1/2022

31

 Entergy Texas, Inc. (ETTO)

 

        X

 1.7920

  6/1/2022

32

 Cleco Power LLC  (CLEC)

 

        X

1.6753

  6/1/2022

33

 Cooperative Energy (SME)

 

        X

 1.0895

  6/1/2022

34

 Lafayette City - Parish Consolidated (LAFA)

 

        X

 0.7186

  6/1/2022

35

Entergy New Orleans (ENTO)

  

        X

 1.7920

  6/1/2022

Disclaimer:  The data and information provided on this page is the responsibility of the individual transmission owner.  MISO’s role, as administrator of the Tariff, is to post the information provided by the transmission owners.  Any questions related to the documents or information posted on this page should be directed to the individual transmission owner.