Combined Notice of Filings #1

 AIV, L.P. Description: Joint Application for Authorization Under Section 203 of the Federal Power Act of Chief Conemaugh Power, LLC, et al. Filed Date: 6/29/26. Accession Number: 20260629-5258. Comment Date: 5 p.m. ET 7/20/26. Take notice that the Commission received the following electric rate filings: Docket Numbers: ER10-2249-012. Applicants: Portland General Electric Company. Description: Supplement to 06/30/2025, Updated Triennial Market Power Analysis for Northwest Region of Portland General Electric Company. Filed Date: 6/26/26. Accession Number: 20260626-5276. Comment Date: 5 p.m. ET 7/17/26. Docket Numbers: ER10-2249-015. Applicants: Portland General Electric Company. Description: Compliance filing: Change in Status and MBR Tariff Revisions for EDAM to be effective 12/31/9998. Filed Date: 6/29/26. Accession Number: 20260629-5186. Comment Date: 5 p.m. ET 7/20/26. Docket Numbers: ER26-1085-002. Applicants: Midcontinent Independent System Operator, Inc. Description: Compliance filing: 2026-06-30_SA 4656 ATXI-Ameren MO 2nd Sub GIA (E0013) to be effective 3/22/2026. Filed Date: 6/30/26. Accession Number: 20260630-5057. Comment Date: 5 p.m. ET 7/21/26. Docket Numbers: ER26-1990-001. Applicants: PSEG Energy Resources & Trade LLC. Description: Tariff Amendment: Response to Deficiency Notice to be effective 6/1/2026. Filed Date: 6/29/26. Accession Number: 20260629-5184. Commen