Combined Notice of Filings #1

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Energy Federal Energy Regulatory Commission Take notice that the Commission received the following electric corporate filings: Docket Numbers: EC26-48-000. Applicants: IN Solar 1, LLC, Duke Energy Indiana, LLC. Description: Joint Application for Authorization Under Section 203 of the Federal Power Act of Duke Energy Indiana, LLC, et al. Filed Date: 1/14/26. Accession Number: 20260114-5194. Comment Date: 5 p.m. ET 2/4/26. Take notice that the Commission received the following exempt wholesale generator filings: Docket Numbers: EG26-136-000. Applicants: Mammoth Plains Energy Storage, LLC. Description: Mammoth Plains Energy Storage, LLC submits Notice of Self-Certification of Exempt Wholesale Generator Status. Filed Date: 1/15/26. Accession Number: 20260115-5110. Comment Date: 5 p.m. ET 2/5/26. Take notice that the Commission received the following Complaints and Compliance filings in EL Dockets: Docket Numbers: EL26-40-000. Applicants: Public Citizen, Inc. v. Public Service Electric and Gas Company . Description: Complaint of Public Citizen, Inc. v. Public Service Electric and Gas Company. Filed Date: 1/14/26. Accession Number: 20260114-5199. Comment Date: 5 p.m. ET 2/3/26. Take notice that the Commission received the following electric rate filings: Docket Numbers: ER25-3070-003. Applicants: Midcontinent Independent System Operator, Inc., Indianapolis Power & Light Company. Description: Tariff Amendment: Indianapolis Power & Light Company submits tariff f…