Transmission Owner 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 June 07, 2017

Zone  Transmission Owner

Forward
Looking

Historical

Loss
Percentage

Effective Date
1  ITC Midwest 

X

 2.6535 1/1/2017
2A  ATCLLC - Madison Gas and Electric 

X

 1.88 10/1/2017
2B  ATCLLC - Wisconsin Public Service Corporation 

X

 1.88 10/1/2017 
2C  ATCLLC - Wisconsin Power & Light Company

X

 1.88 10/1/2017 
2D  ATCLLC - Wisconsin Energy Corporation 

X

 1.88 10/1/2017 
2E  ATCLLC - Upper Peninsula Power Company 

X

 1.88 10/1/2017 
3A  Ameren Illinois

X

 1.0249 1/1/2017
3B  Ameren Missouri

 

X

 1.0188 6/1/2017
5  Cinergy Services (DEI only including IMPA and WVPA)

 

X

 3.8013 6/1/2017
6  City of Columbia, MO

X

 0.7811 6/1/2017
7  City Water, Light & Power (Springfield, Illinois)  

X

 0.6723 6/1/2017
8  Great River Energy

X

 1.1769 1/1/2017
9  Hoosier Energy

 

X

 2.2400 6/1/2017
10  International Transmission Company

X

 1.9993 1/1/2017
11  Indianapolis Power & Light Company

 

X

 2.0100 6/1/2017
13  Michigan Joint Zone (METC)

X

X

 3.3793 1/1/2017
14  Minnesota Power

X

 1.7100 1/1/2017
15  Montana-Dakota Utilities Co.

X

 1.1619 1/1/2017
16  NSP Companies

X

 2.9629 1/1/2017
17  Northern Indiana Public Service Company

X

 

 1.9700 1/1/2017
18  Otter Tail Power Company

X

 

 4.1142 1/1/2017
19  Southern Illinois Power Cooperative

X

 2.6869 6/1/2017
20  Southern Minnesota Municipal Power Agency

X

 0.9600 6/1/2017
23  Vectren Energy 

X

 

 2.0600 1/1/2017
24  MidAmerican Energy Company

X

 

 2.3504 1/1/2017
25  Muscatine Power and Water

X

 .5563 6/1/2017
26  Dairyland Power Cooperative

X

 

 3.9300 1/1/2017
27  Big Rivers Electric Corporation

X

 1.9367 6/1/2017
28  Entergy Arkansas, Inc.

X

 2.0893 6/1/2017
29  Entergy Louisiana, LLC

X

 2.0378 6/1/2017
30  Entergy Mississippi, Inc.

X

 2.7051 6/1/2017
31  Entergy Texas, Inc.

X

 2.0378 6/1/2017
32  Cleco Power LLC  

X

 2.4858 6/1/2017
33  Cooperative Energy

X

 1.3381 6/1/2017
34  Lafayette City - Parish Consolidated

X

 0.8671 6/1/2017

 

 

 

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.