Avista Corporation, et al. v. Bonneville Power Administration, et al.
Petitioner: NORTHWESTERN CORPORATION, d/b/a Northwestern Energy, AVISTA CORPORATION, PACIFICORP, PORTLAND GENERAL ELECTRIC COMPANY, PUGET SOUND ENERGY, INC. and IDAHO POWER COMPANY
Respondent: BONNEVILLE POWER ADMINISTRATION and JOHN HAIRSTON, Administrator and Chief Executive Officer, Bonneville Power Administration
Intervenor: NORTHWEST REQUIREMENTS UTILITIES, PUBLIC POWER COUNCIL INC, WESTERN PUBLIC AGENCIES GROUP, PACIFIC NORTHWEST GENERATING COOPERATIVE and CITY OF SEATTLE
Amicus Curiae: PUBLIC COUNSEL UNIT OF THE WASHINGTON STATE ATTORNEY GENERAL'S OFFICE, OREGON CITIZENS' UTILITY BOARD, PUBLIC UTILITY COMMISSION OF OREGON and WASHINGTON UTILITIES AND TRANSPORTATION COMMISSION
Case Number: 26-2569
Filed: April 24, 2026
Court: U.S. Court of Appeals, Ninth Circuit
Nature of Suit: Other
Docket Report

This docket was last retrieved on September 29, 2026. A more recent docket listing may be available from PACER.

Date Filed Document Text
September 29, 2026 Filing 44 ADDED Counsel for Amicus Curiae - Pending Stephanie Andrus [Entered: 09/29/2026 03:13 PM]
September 29, 2026 Filing 43 ADDED Amicus Curiae - Pending Public Utility Commission of Oregon, Counsel for Amicus Curiae - Pending Jordan R. Silk [Entered: 09/29/2026 03:06 PM]
September 29, 2026 Filing 41 ADDED Amicus Curiae - Pending Public Counsel Unit of the Washington State Attorney General's Office, Counsel for Amicus Curiae - Pending Rachel M. Breslin [Entered: 09/29/2026 09:30 AM]
September 28, 2026 Filing 40 CLERK ACTION: Amicus Brief submitted at DE 36 by Oregon Citizens' Utility Board is filed. No paper copies are required. [Entered: 09/28/2026 09:47 AM]
September 28, 2026 Filing 39 CLERK ACTION: Amicus Brief submitted at DE 34 by Utilities and Transportation Commission is filed. No paper copies are required. [Entered: 09/28/2026 09:47 AM]
September 28, 2026 Filing 38 ADDED Amicus Curiae Oregon Citizens' Utility Board, Amicus Curiae Washington Utilities and Transportation Commission, Counsel for Amicus Curiae Leonard Jeffrey Roberson, Counsel for Amicus Curiae Claire Valentine-Fossum [Entered: 09/28/2026 09:44 AM]
September 25, 2026 Filing 42 AMICUS BRIEF and MOTION for leave to file amicus brief filed by Public Utility Commission of Oregon (OPUC).--[Court Update: Backdated to reflect original filing date, originally filed at DE 35] [Entered: 09/29/2026 02:26 PM] [Edited: 09/29/2026 03:14 PM]
September 25, 2026 Filing 37 AMICUS BRIEF and MOTION for leave to file amicus brief filed by Public Counsel Unit of the Washington State Attorney General's Office.--[COURT UPDATE: Corrected PDF attached as of 9/29/2026, REPLACING original attachment] [Entered: 09/25/2026 03:59 PM] [Edited: 09/29/2026 09:25 AM]
September 25, 2026 Filing 36 AMICUS BRIEF by government or with consent submitted for filing by Oregon Citizens' Utility Board. [Entered: 09/25/2026 03:38 PM]
September 25, 2026 Filing 35 DEFECTIVE --- AMICUS BRIEF by government or with consent submitted for filing by Public Utility Commission of Oregon (OPUC).--[Wrong filing type, correct entry is DE 42] [Entered: 09/25/2026 03:36 PM] [Edited: 09/29/2026 03:07 PM]
September 25, 2026 Filing 34 AMICUS BRIEF by government or with consent submitted for filing by Utilities and Transportation Commission. [Entered: 09/25/2026 03:24 PM]
September 15, 2026 Filing 33 CLERK ACTION: Opening Brief and Excerpts of Record submitted at DE 31, DE 32 by Petitioner Avista Corporation, Petitioner Idaho Power Company, Petitioner NorthWestern Corporation, Petitioner PacifiCorp, Petitioner Portland General Electric Company, Petitioner Puget Sound Energy, Inc. are filed. No paper copies are required. [Entered: 09/15/2026 09:07 AM]
September 11, 2026 Filing 32 EXCERPTS OF RECORD submitted for filing by Petitioner NorthWestern Corporation, Petitioner Avista Corporation, Petitioner PacifiCorp, Petitioner Portland General Electric Company, Petitioner Puget Sound Energy, Inc., Petitioner Idaho Power Company. [Entered: 09/11/2026 03:19 PM]
September 11, 2026 Filing 31 OPENING BRIEF submitted for filing by Petitioner NorthWestern Corporation, Petitioner Avista Corporation, Petitioner PacifiCorp, Petitioner Portland General Electric Company, Petitioner Puget Sound Energy, Inc., Petitioner Idaho Power Company. [Entered: 09/11/2026 03:04 PM]
September 10, 2026 Opinion or Order Filing 30 ORDER FILED. The motion (Docket Entry No. 27) to intervene is granted. The existing briefing schedule remains in effect. [Entered: 09/10/2026 04:25 PM]
July 24, 2026 Filing 29 CERTIFIED LIST OF AGENCY RECORD filed by Respondent Bonneville Power Administration, Respondent John Hairston. [Entered: 07/24/2026 02:07 PM]
July 1, 2026 Filing 28 ADDED Intervenor - Pending City of Seattle, Counsel for Intervenor - Pending Jonathan Wells Monson [Entered: 07/01/2026 12:28 PM]
July 1, 2026 Filing 27 MOTION to Intervene filed by City of Seattle, by and through its City Light Department. [Entered: 07/01/2026 12:17 PM]
July 1, 2026 Filing 26 MEDIATION ORDER (text only). The briefing schedule previously set by the court is amended as follows: the administrative record is due July 24, 2026; Petitioners opening brief is due September 11, 2026; Petitioner-Aligned Intervenor Brief and Amicus Briefs in Support of Petitioner or Neither Party are due September 25, 2026; Respondents answering brief is due November 6, 2026; Respondent-Aligned Intervenor Brief and Amicus Briefs in Support of Respondent are due November 20, 2026; the optional reply brief is due December 16, 2026. [Entered: 07/01/2026 11:25 AM]
July 1, 2026 Filing 25 MEDIATION ORDER. This case is released from the Mediation Program. The briefing schedule previously set by the court is amended as follows: the administrative record is due July 24, 2026; Petitioners opening brief is due September 11, 2026; Petitioner-Aligned Intervenor Brief is due September 25, 2026; Respondents answering brief is due November 6, 2026; Respondent-Aligned Intervenor Brief is due November 20, 2026; the optional reply brief is due December 16, 2026. [Entered: 07/01/2026 09:57 AM]
June 29, 2026 Opinion or Order Filing 24 ORDER FILED. The motions (Docket Entry Nos. 20 & 22) to intervene are granted. The opening brief is due July 13, 2026. The answering brief is due August 12, 2026. The intervenors briefs are due September 11, 2026. The optional reply brief is due 21 days after the last intervenors brief is served. [Entered: 06/29/2026 01:24 PM]
June 16, 2026 Filing 23 ADDED Intervenor - Pending Pacific Northwest Generating Cooperative, Counsel for Intervenor - Pending Richard W. Stover [Entered: 06/16/2026 01:25 PM]
June 16, 2026 Filing 22 MOTION to Intervene filed by Pacific Northwest Generating Cooperative. [Entered: 06/16/2026 11:11 AM]
June 5, 2026 Filing 21 ADDED Intervenor - Pending Western Public Agencies Group, with counsel Ryan Sean Neale. [Entered: 06/05/2026 11:56 AM]
June 5, 2026 Filing 20 MOTION to Intervene filed by Western Public Agencies Group. [Entered: 06/05/2026 09:53 AM]
June 2, 2026 Filing 19 MEDIATION STATUS REPORT DUE. Mediation Petitioner Status Report due (Petitioner) 7/8/2026, Mediation Respondent Status Report due (Respondent) 7/8/2026. See order for instructions and details. [Entered: 06/02/2026 01:07 PM]
May 28, 2026 Opinion or Order Filing 18 ORDER FILED. The motions (Docket Entry Nos. 13 & 16) to intervene are granted. The opening brief is due July 13, 2026. The answering brief is due August 12, 2026. The intervenors briefs are due September 11, 2026. The optional reply brief is due 21 days after the last intervenors brief is filed. [Entered: 05/28/2026 04:31 PM]
May 21, 2026 Filing 17 ADDED Intervenor - Pending Public Power Council Inc, Counsel for Intervenor - Pending Irion Sanger [Entered: 05/21/2026 04:28 PM]
May 21, 2026 Filing 16 MOTION to Intervene filed by Public Power Council. [Entered: 05/21/2026 04:10 PM]
May 20, 2026 Filing 15 MEDIATION CONFERENCE SCHEDULED - DIAL-IN Assessment Conference, 6/2/2026, 10:00 a.m. PACIFIC Time. See order for instructions and details. [Entered: 05/20/2026 10:22 AM]
May 5, 2026 Filing 14 ADDED Intervenor - Pending Northwest Requirements Utilities, Counsel for Intervenor - Pending Matthew Schroettnig [Entered: 05/05/2026 09:19 AM]
May 4, 2026 Filing 13 MOTION to Intervene filed by Northwest Requirements Utilities. [Entered: 05/04/2026 06:01 PM]
April 30, 2026 Filing 12 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Petitioner Idaho Power Company. [Entered: 04/30/2026 07:28 AM]
April 27, 2026 Filing 11 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Petitioner Puget Sound Energy, Inc.. [Entered: 04/27/2026 03:32 PM]
April 27, 2026 Filing 10 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Petitioner Portland General Electric Company. [Entered: 04/27/2026 03:21 PM]
April 27, 2026 Filing 9 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Petitioner PacifiCorp. [Entered: 04/27/2026 03:19 PM]
April 27, 2026 Filing 8 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Petitioner NorthWestern Corporation. [Entered: 04/27/2026 03:15 PM]
April 27, 2026 Filing 7 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Petitioner Avista Corporation. [Entered: 04/27/2026 02:53 PM]
April 27, 2026 Filing 6 MEDIATION QUESTIONNAIRE filed by Petitioner NorthWestern Corporation, Petitioner Avista Corporation, Petitioner PacifiCorp, Petitioner Portland General Electric Company, Petitioner Puget Sound Energy, Inc.. To submit pertinent confidential information directly to the Circuit Mediators, please email #[email protected] and include the case name and number in the subject line. Confidential submissions may include any information relevant to mediation of the case and settlement potential, including, but not limited to, settlement history, ongoing or potential settlement discussions, non-litigated party related issues, other pending actions, and timing considerations that may impact mediation efforts. [Entered: 04/27/2026 02:15 PM]
April 27, 2026 Filing 5 ADDED Counsel for Respondent Richard A. Greene [Entered: 04/27/2026 09:31 AM]
April 27, 2026 Filing 4 NOTICE OF APPEARANCE by Richard A. Greene for Respondent Bonneville Power Administration, Respondent John Hairston. [Entered: 04/27/2026 09:25 AM]
April 24, 2026 Filing 3 SCHEDULE NOTICE. Petitioner Opening Brief due (Petitioner) 7/13/2026, Mediation Questionnaire due (Petitioner) 4/29/2026, Respondent Answering Brief due (Respondent) 8/12/2026. All briefs shall be served and filed pursuant to FRAP 31 and 9th Cir. R. 31-2.1. Failure of the petitioner to comply with this briefing schedule will result in automatic dismissal of the appeal. See 9th Cir. R. 42-1 [Entered: 04/24/2026 04:45 PM]
April 24, 2026 Filing 2 CASE OPENED. Petition for Review has been received in the Clerk's office of the United States Court of Appeals for the Ninth Circuit on 4/24/2026. The U.S. Court of Appeals docket number 26-2569 has been assigned to this case. All communications with the court must indicate this Court of Appeals docket number. Please carefully review the docket to ensure the name(s) and contact information are correct. It is your responsibility to alert the court if your contact information changes. Resources Available For more information about case processing and to assist you in preparing your brief, please review the Case Opening Information (for #attorneys and #pro se litigants) and review the #Appellate Practice Guide. Attorneys should consider contacting the court's #Appellate Mentoring Program for help with the brief and argument. [Entered: 04/24/2026 04:43 PM]
April 24, 2026 Filing 1 PETITION FOR REVIEW filed by Petitioner Avista Corporation, Petitioner Idaho Power Company, Petitioner NorthWestern Corporation, Petitioner PacifiCorp, Petitioner Portland General Electric Company, Petitioner Puget Sound Energy, Inc.. [Entered: 04/24/2026 04:42 PM]

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Search for this case: Avista Corporation, et al. v. Bonneville Power Administration, et al.
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Petitioner: NORTHWESTERN CORPORATION, d/b/a Northwestern Energy
Represented By: Ms. Sarah Douglas
Represented By: Mr. Ronald Scott Novak, Jr
Represented By: Christopher Edward Tutunjian
Represented By: Mr. Aaron Michael Streett
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Petitioner: AVISTA CORPORATION
Represented By: Ms. Sarah Douglas
Represented By: Mr. Ronald Scott Novak, Jr
Represented By: Christopher Edward Tutunjian
Represented By: Mr. Aaron Michael Streett
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Petitioner: PACIFICORP
Represented By: Ms. Sarah Douglas
Represented By: Mr. Ronald Scott Novak, Jr
Represented By: Christopher Edward Tutunjian
Represented By: Mr. Aaron Michael Streett
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Petitioner: PORTLAND GENERAL ELECTRIC COMPANY
Represented By: Ms. Sarah Douglas
Represented By: Mr. Ronald Scott Novak, Jr
Represented By: Christopher Edward Tutunjian
Represented By: Mr. Aaron Michael Streett
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Petitioner: PUGET SOUND ENERGY, INC.
Represented By: Ms. Sarah Douglas
Represented By: Mr. Ronald Scott Novak, Jr
Represented By: Christopher Edward Tutunjian
Represented By: Mr. Aaron Michael Streett
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Petitioner: IDAHO POWER COMPANY
Represented By: Ms. Sarah Douglas
Represented By: Mr. Ronald Scott Novak, Jr
Represented By: Christopher Edward Tutunjian
Represented By: Mr. Aaron Michael Streett
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Respondent: BONNEVILLE POWER ADMINISTRATION
Represented By: Mr. Sean Edward Martin
Represented By: Mr. Marcus Chong Tim
Represented By: Richard A. Greene
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Respondent: JOHN HAIRSTON, Administrator and Chief Executive Officer, Bonneville Power Administration
Represented By: Richard A. Greene
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Intervenor: NORTHWEST REQUIREMENTS UTILITIES
Represented By: Matthew Schroettnig
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Intervenor: PUBLIC POWER COUNCIL INC
Represented By: Mr. Irion Sanger
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Intervenor: WESTERN PUBLIC AGENCIES GROUP
Represented By: Mr. Ryan Sean Neale
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Intervenor: PACIFIC NORTHWEST GENERATING COOPERATIVE
Represented By: Richard W. Stover
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Intervenor: CITY OF SEATTLE
Represented By: Mr. Jonathan Wells Monson
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Amicus curiae: PUBLIC COUNSEL UNIT OF THE WASHINGTON STATE ATTORNEY GENERAL'S OFFICE
Represented By: Ms. Rachel M. Breslin
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Amicus curiae: OREGON CITIZENS' UTILITY BOARD
Represented By: Ms. Claire Valentine-Fossum
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Amicus curiae: PUBLIC UTILITY COMMISSION OF OREGON
Represented By: Ms. Stephanie Andrus
Represented By: Jordan R. Silk
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Amicus curiae: WASHINGTON UTILITIES AND TRANSPORTATION COMMISSION
Represented By: Leonard Jeffrey Roberson
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