Rocky Mountain Power 2026 Inter-Jurisdictional Cost Allocation Protocol
Summary
Utah Public Service Commission docket tracking Rocky Mountain Power's application for approval of the 2026 Inter-Jurisdictional Cost Allocation Protocol. The docket includes testimony from the Utah Large Customer Group, responses from the Office of Consumer Services, and procedural motions. The most recent filing (April 1, 2026) is a motion to extend the procedural schedule.
What changed
The Utah PSC has opened Docket No. 25-035-47 to review Rocky Mountain Power's proposed 2026 Inter-Jurisdictional Cost Allocation Protocol. The Utah Large Customer Group has submitted direct testimony including the Multistate Cost Allocation Framework Proposal (Exhibit JKL-1), protocol comparisons (Exhibit JKL-2), year-end balance results from 2021-2024 (Exhibit JKL-3), and regulatory adjustments in Oregon and Washington. The Office of Consumer Services filed Appendix A from Lane Kollen on March 24, 2026.\n\nRocky Mountain Power filed motions on February 20 and April 1, 2026 to suspend the procedural schedule and extend deadlines, which were granted. The Utah Large Customer Group also filed a motion to deviate from electronic filing requirements. Parties should monitor this docket for responsive testimony deadlines and the eventual commission decision on the cost allocation methodology affecting multistate operations across six states.
What to do next
- Monitor Docket No. 25-035-47 for responsive testimony deadlines
- Review filed testimony and exhibits for implications on cost allocation methodology
- Track procedural schedule extensions for upcoming deadlines
Source document (simplified)
Docket No: 25-035-47
Electric Docket Year: 2025
Application of Rocky Mountain Power for Approval of the 2026 Inter-Jurisdictional Cost Allocation Protocol
For questions regarding documents not linked call 801-530-6716
| Date | Description |
| --- | --- |
| April 1, 2026 | Rocky Mountain Power’s Motion to Extend the Procedural Schedule |
| March 24, 2026 | Appendix A, Re: Lane Kollen for the Office of Consumer Services |
| March 5, 2026 | Order Granting Motions to Suspend Schedule and Discovery |
| February 20, 2026 | Rocky Mountain Power’s Motion to Suspend the Procedural Schedule and to Suspend Discovery |
| February 13, 2026 | Correspondence from Gary L. Widerburg, re: the Utah Large Customer Group’s Motion to Deviate from Electronic Filing Requirement |
| February 5, 2026 | Direct Testimony of Jeffrey K. Larsen Submitted on behalf of the Utah Large Customer Group
UTLCG Exhibit JKL-1 – Multistate Cost Allocation Framework Proposal
UTLCG Exhibit JKL-2 – Total Company – Six State 2020 Protocol vs Five States (2020 Protocol) & WIJAM
UTLCG Exhibit JKL-3 – 2021-2024 – 2020 Protocol – Year End Balance Results of Operations Summary
UTLCG Exhibit JKL-4 – Regulatory Adjustments in Oregon and Washington to Reflect Accelerated Depreciation
UTLCG Exhibit JKL-5 – RMP Responses to Data Requests
Certificate of Service |
| February 5, 2026 | Redacted Direct Testimony of Bradley G. Mullins Submitted on behalf of the Utah Large Customer Group
Direct Testimony of Bradley G. Mullins Submitted on behalf of the Utah Large Customer Group [CONFIDENTIAL]
UTLCG Exhibit BGM-1 – Qualification Statement of Bradley G. Mullins
UTLCG Exhibit BGM-2 – RMP’s Responses to Data Requests
UTLCG Exhibit BGM-3 – Estimate of RMP Over-Recovery of NPC from Washington
Redacted UTLCG Exhibit BGM-4 – Five State vs. Washington Net Position Balancing Method
UTLCG Exhibit BGM-4 – Five State vs. Washington Net Position Balancing Method [CONFIDENTIAL]
UTLCG Exhibit BGM-5 – Reserves Pool Allocation Illustration
Certificate of Service |
| February 5, 2026 | The Utah Large Customer Group’s Motion to Deviate from Electronic Filing Requirement |
| February 5, 2026 | Redacted Direct Testimony of Edward Burgess on behalf of Sierra Club
Direct Testimony of Edward Burgess on behalf of Sierra Club [CONFIDENTIAL]
Sierra Club Exhibit 1.1 – Edward Burgess CV
Sierra Club Exhibit 1.2 – RMP’s Response to DPU Data Request 1.2
Sierra Club Exhibit 1.3 – RMP’s Responses to Sierra Club Data Requests 1.3, 1.4, 1.5, 1.13, 1.15, and 2.3
Sierra Club Exhibit 1.4 – RMP’s Response to UTLCG Data Request 4.5
Sierra Club Exhibit 1.5 – RMP’s Attachment to Sierra Club Data Request 1.3
Sierra Club Exhibit 1.6 – CEG Workpaper “RMP Attachment 2_CEG Analysis
Sierra Club Exhibit 1.7 – CEG Confidential Workpaper “25-035-47 RMP PROPRIETARYMGW Direct Testimony Individual State WRAP ViewCEG Analysis CONF” [CONFIDENTIAL]
Certificate of Service |
| February 5, 2026 | Redacted Direct Testimony of Timothy M. Lenell for the Division of Public Utilities
Direct Testimony of Timothy M. Lenell for the Division of Public Utilities [CONFIDENTIAL]
DPU Exhibit 2.1 – Resume of Timothy Lenell
DPU Exhibit 2.2 – RMP’s Response to Data Requests in the Testimony of Timothy Lenell
DPU Exhibit 2.3 – RMP’s Response to DPU Data Request 8.14-2, Duvall Test [CONFIDENTIAL]
DPU Exhibit 2.4 – RMP’s Response to DPU Data Request 8.14-2, Chehalis Slides [CONFIDENTIAL]
DPU Exhibit 2.5 – RMP’s Response Attachment to DPU Data Request 6.1 [CONFIDENTIAL]
Certificate of Service [CONFIDENTIAL]
|
| February 5, 2026 | Redacted Direct Testimony of Matt Pernichele for the Division of Public Utilities
Direct Testimony of Matt Pernichele for the Division of Public Utilities [CONFIDENTIAL]
DPU Exhibits 1.1 to 1.7 and 1.10 – RMP’s Responses to Data Requests
DPU Exhibit 1.8 – Docket No. UE-250224, Rebuttal Testimony of Ramon J. Mitchell [CONFIDENTIAL]
DPU Exhibit 1.9 – Docket No. UE-250224, Final Order
Certificate of Service
Certificate of Service [CONFIDENTIAL]
|
| February 5, 2026 | Direct Testimony of Logan Mitchell, Ph.D. on behalf of Utah Clean Energy
Certificate of Service |
| February 5, 2026 | Direct Testimony of Justin Bieber on behalf of the Utah Association of Energy Users
UAE Exhibit 1.1 – RMP’s Responses to Data Requests Referenced in the Direct Testimony of Justin Bieber
Certificate of Service |
| February 5, 2026 | Direct Testimony of Nancy L. Kelly on behalf of Western Resource Advocates
WRA Exhibit NK-1 – Nancy Kelly CV
WRA Exhibit NK-2 – RMP’s Data Request Responses to UTLCG, Sierra Club, and DPU
WRA Exhibit NK-3 – Utah Letter Agreement
WRA Exhibit NK-4 – Initial Comments of Western Resource Advocates in 2025 IRP, Docket No. 25-035-22 (filed September 25, 2025)
WRA Exhibit NK-5 – Phase I Direct Testimony of Nancy L. Kelly in 2024 GRC, Docket No. 24-035-04 (filed October 17, 2024), Sections II. A.-E.
Certificate of Service |
| February 5, 2026 | Direct Testimony of Leah J. Wellborn for the Office of Consumer Services
OCS Exhibit 1.1D – Resume of Leah Justin Wellborn
Redacted OCS Exhibit 1.2D – Data Requests Referenced by Leah J. Wellborn in the Direct Testimony
OCS Exhibit 1.2D – Data Requests Referenced by Leah J. Wellborn in the Direct Testimony [CONFIDENTIAL]
Certificate of Service [CONFIDENTIAL]
|
| January 12, 2026 | Appendix A, Re: Randall J. Falkenberg and Stephen J. Baron for the Office of Consumer Services |
| November 25, 2025 | Appendix A, Re: Adam Bednarczyk for the Division of Public Utilities |
| October 31, 2025 | Appendix A, Re: Josh Craft, Kevin Emerson, and Sierra Goodridge for Utah Clean Energy |
| October 10, 2025 | Appendix A, Re: Thomas Phillips, Laura Burford, and Edward Burgess for Sierra Club
Certificate of Service |
| October 7, 2025 | Appendix A, Re: Jeffry Pollock, Stone Davis, and Shawn McGlothlin for the Utah Large Customer Group |
| October 7, 2025 | Appendix A, Re: W. Fripp Prioleau, Jeffrey Larsen, and Bradley Mullins for the Utah Large Customer Group |
| September 23, 2025 | Appendix A, Re: Jeremy R. Cook, Eric J. Lacey, and Peter J. Mattheis for Nucor Steel-Utah, a Division of Nucor Corporation |
| September 22, 2025 | Scheduling Order and Notice of Hearing |
| September 22, 2025 | Order Granting Intervention of Nucor Steel-Utah, a Division of Nucor Corporation |
| September 17, 2025 | Appendix A, Re: Courtney Higgins for the Utah Association of Energy Users |
| September 17, 2025 | Appendix A, Re: Rose Monahan for Sierra Club |
| September 16, 2025 | The Utah Large Customer Group’s Notice of Appearance of Counsel |
| September 16, 2025 | Appendix A, Re: Kelsey Martin for the Division of Public Utilities |
| September 15, 2025 | Appendix A, Re: Timothy Lenell, Dan Koehler, Jeffrey Bower, Karan Pol, and Vasker Neupane for the Division of Public Utilities |
| September 10, 2025 | Order Granting Intervention of Sierra Club |
| September 5, 2025 | Appendix A, Re: Michelle Brandt King, Austin W. Jensen, Nikolas S. Stoffel, Adele Lee, and Tracy Friel for the Utah Large Customer Group |
| September 5, 2025 | Order Granting Intervention of Western Resource Advocates |
| September 4, 2025 | Comments from the Division of Public Utilities |
| September 4, 2025 | Order Granting Intervention of the Utah Large Customer Group |
| September 4, 2025 | Order Granting Intervention of the Utah Association of Energy Users |
| September 4, 2025 | Order Granting Intervention of Utah Clean Energy |
| September 2, 2025 | Petition to Intervene of Nucor Steel-Utah, a Division of Nucor Corporation |
| August 26, 2025 | Notice of Second Virtual Scheduling Conference |
| August 25, 2025 | Sierra Club’s Petition to Intervene |
| August 20, 2025 | Petition for Leave to Intervene of Western Resource Advocates |
| August 19, 2025 | Petition for Leave to Intervene of the Utah Large Customer Group |
| August 18, 2025 | Appendix A, Re: Philip Hayet and Leah Wellborn for the Utah Office of Consumer Services |
| August 15, 2025 | Appendix A, Re: Kevin C. Higgins, Keirsten Ignjatovic, Neal Townsend, Justin Bieber, and Phillip J. Russell for the Utah Association of Energy Users |
| August 15, 2025 | Petition to Intervene of the Utah Association of Energy Users |
| August 14, 2025 | Petition for Leave to Intervene for Utah Clean Energy |
| August 13, 2025 | Notice of Virtual Scheduling Conference |
| August 11, 2025 | Appendix A, Re: Sophie Hayes, Karl Boothman, Jessica Loeloff, Nancy Kelly, and Gwen Farnsworth for Western Resource Advocates |
| August 6, 2025 | Action Request, Due: September 4, 2025 |
| August 5, 2025 | Rocky Mountain Power’s Application for Approval of the 2026 Inter-Jurisdictional Allocation Protocol
RMP Attachment 1 – Direct Testimony of Shelley E. McCoy for Rocky Mountain Power
RMP Attachment 2 – SEM Workpapers
RMP Attachment 3 – Direct Testimony of Cindy A. Crane for Rocky Mountain Power
RMP Attachment 4 – Direct Testimony of Rick T. Link for Rocky Mountain Power
Redacted RMP Attachment 5 – Direct Testimony of Ramon J. Mitchell for Rocky Mountain Power
RMP Attachment 5 – Direct Testimony of Ramon J. Mitchell for Rocky Mountain Power [CONFIDENTIAL]
RMP Attachment 6 – RJM Workpapers [CONFIDENTIAL]
Redacted RMP Attachment 7 – Direct Testimony of Michael G. Wilding for Rocky Mountain Power
RMP Attachment 7 – Direct Testimony of Michael G. Wilding for Rocky Mountain Power [CONFIDENTIAL]
RMP Attachment 8 – MGW Workpapers [CONFIDENTIAL]
|
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