Jurisdictional electric utilities are required to submit Integrated Resource Plans (IRPs) every three years according to Indiana Code § 8-1-8.5-3(e)(2). The IRPs are subject to a rigorous stakeholder process. IRPs describe how the utility plans to deliver safe, reliable, and efficient electricity at just and reasonable rates. Further, these plans must be in the public interest and consistent with state energy and environmental policies. Each utility’s IRP explains how it will use existing and future resources to meet customer demand. When selecting these resources, the utility must consider a broad range of potential future conditions and variables and select a combination that would provide reliable service in an efficient and cost-effective manner.
The following utilities must submit IRPs to the Commission. Click on the utility names below to find the utilities’ most recent IRPs, comments received about the plans, and the RPP Division’s Final Report on each IRP. IRPs older than the most recent submitted versions can be found on the IRP archive page here.
Questions regarding IRPs should be directed to the Commission's Research, Policy, and Planning Division at (317) 232-2736 or via email.
Submitting Comments
For more information on the Commission's guidelines for IRPs, please see 170 IAC 4-7-1. Interested parties may submit comments on a utility’s IRP. A comment must:
- be in writing;
- be received by the Commission within ninety (90) days from the date a utility submits its IRP to the Commission;
- be electronically submitted to the director unless otherwise agreed by the director;
- clearly identify the utility upon which written comments are submitted; and
- be provided to the utility using the utility contact information provided in the IRP.
Please submit your comments via email or by mailing them to the Commission:
Indiana Utility Regulatory Commission
Attn: Research, Policy, and Planning Division
101 W. Washington Street, Suite 1500 E.
Indianapolis, IN 46204-3407
Integrated Resource Plans by Utility
2024 Integrated Resource Plan
Submitted IRP documents:
- 2024 IRP Executive Summary
- 2024 Duke Energy Indiana Integrated Resource Plan (Volume I)
- 2024 IRP Attachments (Volume II)
Comments on IRP:
- Advanced Energy United | PDF
- Energy Matters Community Coalition | PDF
- Citizens Action Coalition, Earthjustice, Environmental Law & Policy Center, Solar United Neighbors, Vote Solar | PDF
- Citizens Action Coalition, Earthjustice, Solar United Neighbors, Vote Solar | PDF
- Clean Grid Alliance | PDF
- Office of Utility Consumer Counselor | PDF
- Reliable Energy | PDF
- Sierra Club | PDF
- Allura Eckert, Andre Simmons, Ann Tobin, April Chancy, Ashley Ehringer, Barbara Edler, Barbara Noble, Ben Cvengros, Betsy Pike, Carol Oconner, Carolyn Back, Cherie Ticknor, Cindi Younce, Colin Norris, Conner Sturgeon, Daniel Fontes, David Wildemann, Dee Nelson, Devin Kellerman, Donna Burgher, Donna Parman, Edith Sarra, Emily Bledsoe, Emily Myers, Eric Daniels, Evelyn Enteman, Felicia Lattimore , Flora Clyde, Glen Boise, Gordon Pryor, Grace Von Lehman, Helen Harrell, Isabel Piedmont-Smith (1) , Isabel Piedmont-Smith (2), Isell Fuentes Santos, Jamie Bromley, Janet Cianteo, Janine Sullivan, Jill Cutshall, Jon Macy, Joshua Mott, Juliana Dills, Kalli Singleton, Katherine Arritt, Kathleen Childers, Kathy Stanfield, Keeley Hollen , Les Ticknor, Linda Fahrenbach, Linda Schnautz , M Simons, Margaret Lock, Marilyn Kofler, Mary Bronson (1), Mary Bronson (2), Mary Grathwohl, Matt Caldie , Mia Strahl, Nissa Watkinson, Pamela Scott , Robert Webster, Romayne Dorsey, Ronald Sieg , Sanglim Yoo, Sara Vevia, Shauna Moore, Sheryl Venola, Stephanie LaFontaine, Susan Cochran, Susan Gaw, Susan Trierweiler, Tammie Eppley, Ted King , Theresa Ray, Timothy Fisher, Tom Hougham , Tom Moore, Vaughn Zeller
Duke Energy Indiana's Response Comments to Stakeholder Comments | PDF
Archive IRPs and Reports can be found on the archive webpage here.
2023 Integrated Resource Plan
Submitted IRP documents:
- Volume I: Main Report
- Volume II: Technical Appendices (A, B)
- Volume III: Technical Appendices (C, D, E, I)
- Appendix F
- Appendix G
- Appendix H
Reporting regarding Hoosier Energy’s 2023 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Hoosier Energy | PDF
Archive IRPs and Reports can be found on the archive webpage here.
2024 Integrated Resource Plan
Submitted IRP documents:
- Letter submitting IRP
- IRP Summary
- Submitted IRP
- Appendix Vol. 1
- Appendix Vol. 2
- Appendix Vol. 3
- Appendix Vol. 4
Comments on IRP:
- Advanced Energy United | PDF
- American Council for an Energy-Efficient Economy | PDF
- Citizens Action Coalition, Environmental Law & Policy Center, Solar United Neighbors, and Vote Solar | PDF
- Citizens Action Coalition, Earthjustice, Environmental Law & Policy Center, Solar United Neighbors, and Vote Solar | PDF
- Office of Utility Consumer Counselor | PDF
Archive IRPs and Reports can be found on the archive webpage here.
2025 Integrated Resource Plan
Submitted IRP documents:
- Submission Letter
- Non Technical Summary
- Integrated Resource Plan (Volume I)
- Integrated Resource Plan (Volume II)
- Integrated Resource Plan (Volume III)
Comments on IRP:
- Advanced Energy United | PDF
- OUCC | PDF
- City of Indianapolis | PDF
- Reliable Energy, Inc. | PDF
- Clean Grid Alliance | PDF
- CAC, Solar United Neighbors, and Vote Solar | PDF
- CAC, Environmental Law & Policy Center, Solar United Neighbors, and Vote Solar | PDF
- Hoosier Environmental Council | PDF
AES Indiana Response Comments to Stakeholder Comments | PDF
Archive IRPs and Reports can be found on the archive webpage here.
2024 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Clean Grid Alliance | PDF
- Citizens Action Coalition, Earthjustice, Solar United Neighbors, Vote Solar | PDF
- Office of Utility Consumer Counselor | PDF
- Reliable Energy | PDF
- James Weber, James Yoder
Archive IRPs and Reports can be found on the archive webpage here.
Note: Public comments on CenterPoint Energy Indiana South's 2025 Integrated Resource Plan were accepted through April 2, 2026. If you have questions, please contact Research, Policy, and Planning Division Director, Dr. Borum at bborum@urc.in.gov or 317-232-2304.
2025 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Sierra Club | PDF
- Hoosier Environmental Council | PDF
- Clean Grid Alliance | PDF
- Reliable Energy | PDF
- Office of Utility Consumer Counselor (OUCC) | PDF
- Advanced Energy United | PDF
- Citizens Action Coalition (CAC), Solar United Neighbors (SUN), and Vote Solar | PDF
- CAC, SUN, Vote Solar, and Environmental Law & Policy Center | PDF
CEI South Response Comments to Stakeholder Comments | PDF
Archive IRPs and Reports can be found on the archive webpage here.