Federal Power Act Section 202(c): TransAlta Order No. 202-26-44

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On September 11, 2026, the U.S. Department of Energy (DOE) issued emergency DOE Order No. 202-26-44, pursuant to section 202(c) of the Federal Power Act, to TransAlta Centralia Generation, LLC (TransAlta). The order directs TransAlta to ensure Unit 2 of the Centralia Generating Station in Centralia, Washington remains available to operate at the direction of either Gridforce Energy Management, LLC or Southwest Power Pool Western RC. This order is in effect beginning on September 13, 2026, through December 11, 2026.

Date of DocumentSubmitterDocument Title
September 11, 2026Department of Energy DOE Order No. 202-26-44
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 1 – 10-3
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 11 – 11-15
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 12 – 20
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 21 – 23-17
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 24 – 35
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 36 – 41-23
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 42 – 51-7
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 52 – 65
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 66 – 67 part 7
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 68 – 70
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 71 – 85
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 86 – 100
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 101 – 110
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 111 – 130
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 131 – 140
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibits 141 – 150
October 8, 2026State of WashingtonMotion to Intervene, Request for Rehearing, and Motion to Stay by State of Washington Exhibit 151
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-01 – 2-18
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-19 – 2-38
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-39 – 2-75
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-76 – 2-95
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-96 – 2-120
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-121 – 2-130
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibit 2-131
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-132 – 2-135
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-135 – 2-155
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 2-156 – 2-159
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 3-01 – 3-06
October 9, 2026Sierra Club, NW Energy Coalition, Washington Conservation Action, Climate Solutions, Public Citizen, and Environmental Defense Fund (collectively, “Public Interest Organizations” or “PIOs”)Motion to Intervene, Motion for Clarification, and Request for Rehearing and Stay of PIOs Exhibits 4-01 – 4-08
November 10, 2026Department of Energy Notice of Denial of Rehearing by Operation of Law and Providing for Further Consideration