LEGAL NOTICE OF EVIDENTIARY HEARING INDIANA UTILITY REGULATORY COMMISSION CAUSE NO. 46293 VERIFIED PETITION OF DUKE ENERGY INDIANA, LLC ("DUKE ENERGY INDIANA") FOR AN ORDER: (1) AUTHORIZING PETITIONER TO ENTER INTO A POWER PURCHASE AGREEMENT ("PPA") TO PURCHASE ALL CAPACITY AND DISCHARGING ENERGY FROM THE 150 MW WILLIAMS BATTERY PROJECT, AND FINDING THAT THE PROJECT AND TERMS OF THE PPA ARE JUST AND REASONABLE (THE "WILLIAMS PPA" AND "WILLIAMS BATTERY PROJECT"); (2) AUTHORIZING PETITIONER TO ENTER INTO A PPA TO PURCHASE ALL CAPACITY AND DISCHARGING ENERGY FROM THE 118 MW FLETCHER BATTERY PROJECT, AND FINDING THAT THE PROJECT AND TERMS OF THE PPA ARE JUST AND REASONABLE (THE "FLETCHER PPA" AND THE "FLETCHER BATTERY PROJECT") (COLLECTIVELY, THE "BATTERY PPAS" AND THE "BATTERY PROJECTS"); (3) DETERMINING THE BATTERY PROJECTS TO BE ELIGIBLE CLEAN ENERGY PROJECTS FOR PURPOSES OF IND. CODE CH. 8-1-8.8; (4)AUTHORIZING FULL RECOVERY OF ENERGY COSTS ATTRIBUTABLE TO THE BATTERY PROJECTS THROUGH PETITIONER'S FUEL COST ADJUSTMENT("FAC") OVER THE ENTIRE TERMS OF THE BATTERY PPAS; (5) AUTHORIZING FULL RECOVERY OF CAPACITY COSTS ATTRIBUTABLE TO THE BATTERY PPAS THROUGH PETITIONER'S RELIABILITY ADJUSTMENT ("RA") FILINGS OVER THE ENTIRE TERMS OF THE BATTERY PPAS; (6) AUTHORIZING FULL RECOVERY OF NON-FUEL REGIONAL TRANSMISSION OPERATOR ("RTO") CHARGES AND CREDITS ATTRIBUTABLE TO THE BATTERY PROJECTS THROUGH PETITIONER'S RTO FILINGS OVER THE ENTIRE TERMS OF THE BATTERY PPAS; (7)AUTHORIZING FINANCIAL INCENTIVES; AND (8)APPROVING CONFIDENTIAL TREATMENT FOR PRICING AND OTHER NEGOTIATED COMMERCIAL TERMS AND RELATED CONFIDENTIAL INFORMATION. Notice is hereby given that the Indiana Utility Regulatory Commission will conduct a public Evidentiary Hearing in the above-captioned Cause in Room 222 of the PNC Center, 101 W. Washington Street, Indianapolis, Indiana, commencing at 1:00 PM on November 7, 2025. This hearing is open to the public. If an accommodation is required to allow an individual with a disability to participate, please contact the Office of the Executive Secretary of the IURC at 317.232.2701 or TDD 317. 232.8556 at least 48 hours in advance. INDIANA UTILITY REGULATORY COMMISSION OFFICE OF THE EXECUTIVE SECRETARY 317.232.2701 BY: IURC – Sean Gorman, ALJ DATE: September 23, 2025 HSPAXLP September 26 2025 LSBN0376805