ER27-432-001 · 2026-11-10 · Southwest Power Pool, Inc.

Marked8543-c98d2db8-21b1-4bff-8977-95b41bb9803c.pdf

Upper Missouri Zone 
Rate Sheet for Point-To-Point Transmission Service 
 
The currently effective rates for Point-To-Point Transmission Service in the Upper 
Missouri (“UMZ”) rate zone are set forth in the “UMZ PTP Rate Att T” tab of the Revenue 
Requirements and Rates File (“RRR File”) posted on the SPP website.  Transmission Owners 
that have Commission approved rate(s) in the UMZ rate zone are:  Basin Electric Power 
Cooperative (“Basin Electric”); Heartland Consumers Power District (“Heartland”); Missouri 
River Energy Services (“MRES”); East River Electric Power Cooperative, Inc. (“East River”); 
Corn Belt Power Cooperative (“Corn Belt”); NorthWestern Energy Public Service Corporation  
(“NWPS”); Northwest Iowa Power Cooperative (“NIPCO”); Harlan Municipal Utilities 
(“HMU”); Western Area Power Administration, Upper Great Plains Region (“Western-UGP”); 
Central Electric Power Cooperative, Inc. (“Central Power”); Mountrail-Williams Electric 
Cooperative (“Mountrail-Williams”); Mor-Gran-Sou Electric Cooperative, Inc. (“Mor-Gran-
Sou”); Roughrider Electric Cooperative, Inc. (“Roughrider”); L and O Power Cooperative 
(“LOPC”); and Upper Missouri G. & T. Electric Cooperative, Inc (“UMGT”). 
 
Balanced Portfolio Reallocation Adjustment of Point-To-Point Rates   
Rates for Point-To-Point Transmission Service specified in this Attachment T shall be 
adjusted to reflect any amount reallocated from the Zonal Annual Transmission Revenue 
Requirement in accordance with Section IV.A of Attachment J.  The rates, including any 
applicable reallocation adjustment, shall be set forth in the RRR File posted on the SPP website. 
 
Point-To-Point Transmission Service and Conditional High Impact Large Load Service 
Revenue Crediting for Point-To-Point Rates 
Rates for Point-To-Point Transmission Service under this Attachment T shall reflect any 
adjustments for Schedules 7, and 8 revenues, 14, Scheduleand 15 revenues, Incremental Market 
Efficiency Use revenues, and revenues distributed and allocated under Attachment AU, 
implemented in accordance with Section 34.1(2) of this Tariff.  The rates, including any 
applicable adjustments for Schedules 7 and, 8, 14 revenues, andSchedule 15 revenues,

Incremental Market Efficiency Use revenues, and revenues distributed and allocated under 
Attachment AU, shall be set forth in the RRR File. 
 
Firm Point-To-Point Transmission Service 
The Transmission Customer shall compensate the Transmission Provider each month for 
Reserved Capacity at the sum of the applicable charges based upon the rates set forth in the RRR 
File, calculated pursuant to the formula rates of Basin Electric, Heartland, MRES, MRES 
Members (includes Moorhead Public Service; Orange City Municipal Utilities; City of Pierre, 
South Dakota; City of Sioux Center, Iowa; Watertown Municipal Utility Department; Denison 
Municipal Utilities; and Vermillion Light & Power), East River, Corn Belt, NWPS, NIPCO, 
HMU, Western-UGP, Central Power, Mountrail-Williams, Mor-Gran-Sou, Roughrider, LOPC, 
and UMGT including any ATRR associated with facility credits provided in the UMZ rate zone, 
set forth in Attachment H, Addendums 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 
40, 41, 42, 45, 47, 49, and 53 (list appropriate addendums, respectively) of the Tariff, and as 
described below: 
1. 
Yearly delivery: the UMZ Monthly delivery rate multiplied by 12 months. 
2. 
Monthly delivery: the sum of the Basin Electric, Heartland, MRES, MRES 
Members, East River, Corn Belt, NWPS, NIPCO, HMU, Western-UGP, 
Central Power, Mountrail-Williams, Mor-Gran-Sou, Roughrider, LOPC, 
and UMGT Annual Transmission Revenue Requirements determined 
under these entities’ formula rates, including any ATRR associated with 
facility credits provided in the UMZ rate zone, divided by the UMZ total 
load estimate and divided by 12 months. 
3. 
Weekly delivery:  the UMZ Yearly delivery rate divided by 52.  
4. 
Daily delivery:  the UMZ Weekly delivery rate divided by 7. 
 
Non-Firm Point-To-Point Transmission Service 
The Transmission Customer shall compensate the Transmission Provider for Non-Firm 
Point-To-Point Transmission Service up to the sum of the applicable charges based upon the 
rates set forth in the RRR File, calculated pursuant to the formula rates of Basin Electric, 
Heartland, MRES, MRES Members, East River, Corn Belt, NWPS, NIPCO, HMU, Western-

UGP, Central Power, Mountrail-Williams, Mor-Gran-Sou, Roughrider, LOPC, and UMGT 
including any ATRR associated with facility credits provided in the UMZ rate zone, and as 
described below:  
1. 
Monthly delivery: the sum of the Basin Electric, Heartland, MRES, MRES 
Members, East River, Corn Belt, NWPS, NIPCO, HMU, Western-UGP, 
Central Power, Mountrail-Williams, Mor-Gran-Sou, Roughrider, LOPC, 
and UMGT Annual Transmission Revenue Requirements determined 
under these entities’ formula rates, including any ATRR associated with 
facility credits provided in the UMZ rate zone, divided by the UMZ total 
load estimate and divided by 12 months. 
2. 
Weekly delivery:  the UMZ Monthly delivery rate multiplied by 12 and 
divided by 52.  
3. 
Daily delivery:  the UMZ Weekly delivery rate divided by 7. 
4. 
Hourly delivery:  the UMZ Monthly delivery rate divided by 730 hours 
per month.