Combined Notice of Filings #1

led Date: 8/31/26. Accession Number: 20260831-5286. Comment Date: 5 p.m. ET 9/21/26. Docket Numbers: ER26-2747-001. Applicants: California Independent System Operator Corporation. Description: Compliance filing: 2026-09-01 Compliance Filing-- Interconnection Process Enhancements 5 to be effective 8/5/2026. Filed Date: 9/1/26. Accession Number: 20260901-5162. Comment Date: 5 p.m. ET 9/22/26. Docket Numbers: ER26-3624-001. Applicants: Portland General Electric Company. Description: Tariff Amendment: Amendment to Updated and Restated Jane Wind II Concurrence to be effective 8/10/2026. [[Page 56876]] Filed Date: 9/1/26. Accession Number: 20260901-5080. Comment Date: 5 p.m. ET 9/22/26. Docket Numbers: ER26-3654-000. Applicants: HILLMAN POWER COMPANY L.L.C. Description: Request for Prospective Tariff Waiver, et al. of Hillman Power Company L.L.C. Filed Date: 8/28/26. Accession Number: 20260828-5302. Comment Date: 5 p.m. ET 9/18/26. Docket Numbers: ER26-3667-000. Applicants: Ameren Transmission Company of Illinois. Description: Sec. 205(d) Rate Filing: Submission of JOU (RS No. 13) and TUA (RS No. 14) to be effective 10/31/2026. Filed Date: 8/31/26. Accession Number: 20260831-5249. Comment Date: 5 p.m. ET 9/21/26. Docket Numbers: ER26-3668-000. Applicants: Southwest Power Pool, Inc. Description: Sec. 205(d) Rate Filing: Revisions to Modify Addendum 1 to Schedule 1-A to be effective 1/