This page houses IRPs from the last several years, as well as accompanying stakeholder comments and Directors' Draft and Final IRP Reports. The webpage with the most recently submitted IRPs can be found here.
Questions regarding IRPs should be directed to the Commission's Research, Policy, and Planning Division at (317) 232-2736 or via email.
Archived Integrated Resource Plans by Utility
2021 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Indiana State Conference of the NAACP | PDF
- Indiana Advanced Energy Economy | PDF
- Duke Industrial Group | PDF
- Hoosier Environmental Council | PDF
- Sierra Club | PDF
- Reliable Energy | PDF
- Energy Matters Community Coalition - Letter | Report
- Citizens Action Coalition of Indiana; Earth Justice; Vote Solar - Report | Modeling
- Office of Utility Consumer Counselor | PDF
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Report regarding Duke Energy Indiana's 2021 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Industrial Group | PDF
- CAC, Earthjustice, and Vote Solar | PDF
- Energy Matters Community Coalition, Inc. | PDF
- Reliable Energy | PDF
- Duke Energy Indiana | PDF
2018 Integrated Resource Plan
Submitted IRP documents:
- Letter Submitting IRP
- Submitted IRP - Volume 1
- Submitted IRP - Volume 2 (Part 1)
- Submitted IRP - Volume 2 (Part 2)
Comments on IRP:
- Clean Grid Alliance | PDF
- Indiana Advanced Energy Economy | PDF
- Indiana Coal Council | PDF
- Indiana Office of Utility Consumer Counselor | PDF
- Industrial Group | PDF
- Joint Commenters - Citizens Action Coalition of Indiana, Energy Matters Community Coalition, Earthjustice, Carmel Green Initiative, Environmental Working Group, Indiana Distributed Energy Alliance, Sierra Club, and Valley Watch | Cover Letter | PDF 1 | PDF 2
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Report Regarding Duke Energy Indiana's 2018-2019 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Duke Energy Indiana, LLC | PDF
- Mike Mullett | PDF
- CAC and Earthjustice | PDF
- Sierra Club | PDF
- Indiana Coal Council | PDF
2015 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
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Report Regarding 2015 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Joint Commenters
- Wabash Valley Power
2013 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Clean Line Energy: Comments
- CAC, Earthjustice, and Sierra Club: Comments
- Hoosier Environmental Council: Comments
- Wind on the Wires: Comments
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Report Regarding 2013 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Mullett & Associates, and Sierra Club
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Indiana Office of Utility Consumer Counselor
- Wabash Valley Power
2011 Integrated Resource Plan
Submitted IRP documents:
2020 Integrated Resource Plan
Submitted IRP documents:
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Reporting regarding Hoosier Energy's 2020 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Hoosier Energy | PDF
2017 Integrated Resource Plan
Submitted IRP documents:
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Report Regarding 2017 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
2016 Integrated Resource Plan
Submitted IRP documents:
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Report Regarding 2016 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Indiana Distributed Energy Alliance, Sierra Club, and Valley Watch
- Indiana Coal Council
- Indianapolis Power & Light
- Northern Indiana Public Service Company
- Vectren South
2014 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
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Report Regarding 2014 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Hoosier Energy
- Indianapolis Power & Light Company
- Indianapolis Power & Light Company, NIPSCO, and Vectren joint comments
- Vectren
- NIPSCO
- OUCC
- Citizens Action Coalition
2012 Integrated Resource Plan
Submitted IRP documents:
2021 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
- Update posted on 8-27-24: 2021 I&M IRP Update | Updated IRP Section Summary
Comments on IRP:
- Office of Utility Consumer Counselor | PDF
- Indiana Advanced Energy Economy | PDF
- Reliable Energy | PDF
- Citizens Action Coalition, Earthjustice, & Vote Solar | PDF
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Reporting regarding Indiana Michigan Power Company’s 2021 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Office of Utility Consumer Counselor | PDF
- Indiana Michigan Power Company | PDF
- Reliable Energy | PDF
- Citizens Action Coalition, Earthjustice, & Vote Solar | PDF
2018 Integrated Resource Plan
Submitted IRP documents:
- Letter Submitting IRP
- Public Summary
- Submitted IRP & Appendix Vol. 1
- Appendix Vol. 2
- Appendix Vol. 3
- Market Potential Study - Prepared for I&M by AEG (2016)
Executive Summary
I&M Report - Indiana
I&M Report - Michigan
Comments on IRP:
- Advanced Energy Economy | PDF
- Clean Grid Alliance | PDF
- Citizens Action Coalition, Carmel Green Initiative, Earthjustice, IndianaDG, Sierra Club, and Valley Watch | PDF
- Indiana Coal Council | PDF
- Indiana Office of Utility Consumer Counselor | PDF
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Report regarding I&M's 2018-2019 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
2015 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- CNVann
- JWVann
- MCooley
- AFant
- RFredericks
- HHanauer
- MMessineo
- NRose
- HTraxmor
- JWWingate
- EWolner
- City of Fort Wayne
- City of South Bend
- CAC, Earthjustice, IndianaDG, M. Mullett, Sierra Club, and ValleyWatch
----------------------------
Report Regarding 2015 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Joint Commenters
- Wabash Valley Power
2013 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- CAC-Earthjustice-Sierra Club: Comments
- Clean Line Energy: Comments
- Hoosier Environmental Council: Comments
- Wind on the Wires: Comments
----------------------------
Report Regarding 2013 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Mullett & Associates, and Sierra Club
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Indiana Office of Utility Consumer Counselor
- Wabash Valley Power
2011 Integrated Resource Plan
Submitted IRP documents:
2020 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Sierra Club | PDF
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Report regarding IMPA's 2020 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- IMPA | PDF
2017 Integrated Resource Plan
Submitted IRP documents:
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Report Regarding 2017 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
2015 Integrated Resource Plan
Submitted IRP documents:
----------------------------
Report Regarding 2015 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Joint Commenters
- Wabash Valley Power
2013 Integrated Resource Plan
Submitted IRP documents:
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Report Regarding 2013 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Mullett & Associates, and Sierra Club
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Indiana Office of Utility Consumer Counselor
- Wabash Valley Power
2011 Integrated Resource Plan
Submitted IRP documents:
2022 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Advanced Energy United | PDF
- Citizens Action Coalition, Earthjustice, Solar United Neighbors, Vote Solar | PDF
- Hoosier Environmental Council | PDF
- Office of Utility Consumer Counselor | PDF
- Reliable Energy | PDF
- Sierra Club | PDF
- Solar United Neighbors, Vote Solar, and Citizens Action Coalition | PDF
Indianapolis Power & Light's (AES Indiana) Response Comments to Stakeholder Comments | PDF
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Report regarding AES Indiana's 2022 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Advanced Energy United | PDF
- AES Indiana | PDF
- Office of Utility Consumer Counselor | PDF
- Reliable Energy | PDF
2019 Integrated Resource Plan
Submitted IRP documents:
- Volume 1 | PDF
- Volume 2 | PDF
- Volume 3 | PDF
- IPL's Response to Stakeholder Comments
Comments on IRP:
- Sierra Club | PDF
- Advanced Energy Economy | PDF
- Indiana Coal Council | PDF
- OUCC | PDF
- City of Indianapolis | PDF
- Citizens Action Coalition and Earthjustice | PDF
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Report regarding IPL's 2019 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
2016 Integrated Resource Plan
Submitted IRP documents:
- Submitted IRP
- IRP Attachment Vol. 1
- IRP Attachment Vol. 2
- IPL's Response to Stakeholder Comments
- Petition for Confidentiality
Comments on IRP:
- CAC, Earthjustice, Indiana DG, Sierra Club, and ValleyWatch - Summary Report
- Indiana Coal Council
- Midwest Energy Efficiency Alliance
- OUCC
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Report Regarding 2016 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Indiana Distributed Energy Alliance, Sierra Club, and Valley Watch
- Indiana Coal Council
- Indianapolis Power & Light
- Northern Indiana Public Service Company
- Vectren South
2014 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- HEC
- OUCC
- Sierra Club
- Sierra Club, Indianapolis Green Congregations, Citizens Action Coalition, Linda Porter, Indiana NAACP, and Hoosier Interfaith Power & Light
- Redacted comments-Citizens Action Coalition, Earthjustice, Indiana DG, and Sierra Club
----------------------------
Report Regarding 2014 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Hoosier Energy
- Indianapolis Power & Light Company
- Indianapolis Power & Light Company, NIPSCO, and Vectren joint comments
- Vectren
- NIPSCO
- OUCC
- Citizens Action Coalition
2012 Integrated Resource Plan
Submitted IRP documents:
2021 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Office of Utility Consumer Counselor | Word Doc
- Wartsila | PDF
- Indiana Advanced Energy Economy | PDF
- Citizens Action Coalition | PDF | Attachment A
- Reliable Energy | PDF
NIPSCO's Response Comments to Stakeholder Comments | PDF
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Report regarding NIPSCO's 2021 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
2018 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Citizens Action Coalition of Indiana (CAC), Earthjustice, Indiana Distributed Energy Alliance (IndianaDG), Sierra Club, and Valley Watch
- Clean Grid Alliance and American Wind Energy Association
- Indiana Coal Council (ICC)
- Indiana Coalition for Affordable and Reliable Electricity (ICARE)
- Indiana Office of Utility Consumer Counselor (OUCC)
- Midwest Energy Efficiency Alliance (MEEA)
- Peabody COALSALES, LLC
NIPSCO's Response Comments to Stakeholder Comments | PDF
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Report Regarding NIPSCO's 2018 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
2016 Integrated Resource Plan
Submitted IRP documents:
- Submitted IRP
- Appendices Vol. 1
- Appendices Vol. 2
- NIPSCO's Response to Stakeholder Comments
- Petition for Confidentiality
Comments on IRP:
- Gibson County Coal Comments
- Indiana Coal Council
- Indiana Coal Council Supplemental Comments
- Joint Commenters Comments, and Summary
- Midwest Energy Efficiency Alliance
- NIPSCO Industrial Group
- OUCC
- Sunrise Coal, LLC
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Report Regarding 2016 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Indiana Distributed Energy Alliance, Sierra Club, and Valley Watch
- Indiana Coal Council
- Indianapolis Power & Light
- Northern Indiana Public Service Company
- Vectren South
2014 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- HEC
- OUCC
- Sierra Club
- Redacted comments - Citizens Action Coalition, Earthjustice, Indiana DG, and Sierra Club
----------------------------
Report Regarding 2014 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Hoosier Energy
- Indianapolis Power & Light Company
- Indianapolis Power & Light Company, NIPSCO, and Vectren joint comments
- Vectren
- NIPSCO
- OUCC
- Citizens Action Coalition
2012 Integrated Resource Plan
Submitted IRP documents:
2023 Integrated Resource Plan
Submitted IRP documents:
- Executive Summary (Non-technical Summary)
- Submitted IRP Volume 1 of 2
- Submitted IRP Volume 2 of 2 (Part 1)
- Submitted IRP Volume 2 of 2 (Part 2)
- Submitted IRP Volume 2 of 2 (Part 3)
- Submitted IRP Volume 2 of 2 (Part 4)
- Submitted IRP Volume 2 of 2 (Part 5)
- Submitted IRP Volume 2 of 2 (Part 6)
Comments on IRP:
- Advanced Energy United | PDF
- Citizens Action Coalition, Earthjustice, Solar United Neighbors, and Vote Solar | PDF
- Office of Utility Consumer Counselor | PDF
- Reliable Energy | PDF
- Sierra Club | PDF
- Solar United Neighbors, Vote Solar, and Citizens Action Coalition | PDF
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Report regarding CenterPoint Energy Indiana South's 2023 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- CenterPoint Energy Indiana South | PDF
- Office of Utility Consumer Counselor | PDF
- Reliable Energy | PDF
2020 Integrated Resource Plan
Submitted IRP documents:
- Submitted IRP Volume 1 of 2
- Submitted IRP Volume 2 of 2 (Part 1)
- Submitted IRP Volume 2 of 2 (Part 2)
Comments on IRP:
- Berry Global - Evansville, IN | PDF
- Economic Development Coalition of Southwest Indiana and Evansville Industrial Foundation | PDF
- Indiana Coal Council | Submission Letter | PDF
- Indiana Office of Utility Consumer Counselor (OUCC) | PDF
- City of Evansville | PDF
- AstraZeneca | PDF
- Advanced Energy Economy Indiana | PDF
- Sierra Club | PDF
- CAC, CGI, Earthjustice, Solarize Indiana, SUN, Valley Watch, and Vote Solar | PDF
Vectren's Response Comments to Stakeholder Comments | PDF
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Report regarding Vectren's 2020 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
2016 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Alliance Resource Partners, LP
- Citizens Action Coalition
- CAC, Earthjustice, IndianaDG, Sierra Club, and Valley Watch - Summary Report
- Indiana Coal Council
- Indiana Coal Council Supplemental Comments
- Midwest Energy Efficiency Alliance
- Joe Nickolick
- OUCC
- Sunrise Coal, LLC
- Valley Watch (1)
- Valley Watch (2)
- Final Vectren South Response Comments
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Report Regarding 2016 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Indiana Distributed Energy Alliance, Sierra Club, and Valley Watch
- Indiana Coal Council
- Indianapolis Power & Light
- Northern Indiana Public Service Company
- Vectren South
2014 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Jean Webb
- HEC
- OUCC
- John Blair - Valley Watch
- Redacted comments - Citizens Action Coalition, Earthjustice, Indiana DG, and Sierra Club
- Mark Bryant - Valley Watch
----------------------------
Report Regarding 2014 Integrated Resource Plans
Comments on the Director's Draft IRP Report:
- Hoosier Energy
- Indianapolis Power & Light Company
- Indianapolis Power & Light Company, NIPSCO, and Vectren joint comments
- Vectren
- NIPSCO
- OUCC
- Citizens Action Coalition
2012 Integrated Resource Plan
Submitted IRP documents:
2020 Integrated Resource Plan
Submitted IRP documents:
Comments on IRP:
- Tipmont | PDF
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Reporting regarding the 2020 Integrated Resource Plan
2017 Integrated Resource Plan
Submitted IRP documents:
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Report Regarding the 2017 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
2015 Integrated Resource Plan
Submitted IRP documents:
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Report Regarding the 2015 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Joint Commenters
- Wabash Valley Power
2013 Integrated Resource Plan
Submitted IRP documents:
----------------------------
Report Regarding the 2013 Integrated Resource Plan
Comments on the Director's Draft IRP Report:
- Citizens Action Coalition, Earthjustice, Mullett & Associates, and Sierra Club
- Duke Energy Indiana
- Indiana Michigan Power Company
- Indiana Municipal Power Agency
- Indiana Office of Utility Consumer Counselor
- Wabash Valley Power
2011 Integrated Resource Plan
Submitted IRP documents: