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Integrated Resource Plan (IRP)


About the IRP

Every three years, Vectren is required to submit its Integrated Resource Plan to the Indiana Utility Regulatory Commission (IURC). The IRP describes the analysis process used to determine the best mix of generation and energy efficiency resources to meet customers' needs for reliable, low cost, environmentally acceptable power over the next 20 years. The IRP can be thought of as a compass setting the direction for future generation and energy efficiency options. Future analysis, filings, and subsequent approvals from the IURC are needed to finalize the detailed course. Below is a summary of our most recent IRP, which was filed in December of 2016.

Stakeholder engagement

Prior to filing the 2016 Integrated Resource Plan, Vectren held a stakeholder engagement process. Vectren met with interested stakeholders five times in 2016.


Objectives of the stakeholder engagement process

As part of the development of the Integrated Resource Plan, there are three objectives for the stakeholder engagement process:


Understand concerns and objectives.


Increase stakeholder understanding of the Integrated Resource Plan process, key assumptions and the challenges facing Vectren and the electric utility industry.


Provide a forum for relevant, timely stakeholder feedback at key points in the Integrated Resource Plan process to inform Vectren's decision making

Question about the IRP?

Have questions about our integrated resource plan? Email us at

Additional information

2016 IRP information

Vectren held three public advisory meetings or workshops with interested parties (stakeholders) during the development and analysis of the 2016 Integrated Resource Plan. The advisory meetings have informed stakeholders about Vectren's resource planning process, assumptions, and modeling methods as well as provide input from stakeholders to Vectren regarding these topics. The first meeting was held on April 7, 2016, and the second meeting was held on July 22, 2016. Additionally, Vectren held an IRP webinar information session on its 2016 IRP DSM modeling assumptions on October 14, 2016. Finally, on November 29, 2016 Vectren held the final meeting to discuss the preferred resource plan.


Meeting materials

First stakeholder meeting (April 7, 2016)

2nd stakeholder meeting (July 22, 2016)

Webinar on modeling assumptions (October 14, 2016)

3rd stakeholder meeting (November 29, 2016)

Stakeholder education session

Indianapolis Power & Light Company (IPL), Indiana Michigan Power (I&M), Vectren, Northern Indiana Public Service Company (NIPSCO) and Duke Energy jointly presented an educational session to discuss the foundation of the IRP process. This all-day meeting was hosted on Feb. 3, 2016 and topics covered at the meeting include load forecasting, resource options, scenarios and sensitivities, RTOs and resource modeling.

Note: The Indiana electric utilities provide these materials for educational purposes only. Any statements and/or opinions expressed through these materials are those of the presenter and not the company with whom they are affiliated or employed.

  •  Meeting agenda
  •  Complete presentation slide deck
  •  PDF   MP3  Welcome & Objective, Mark Maassel, Indiana Energy Association (IEA)
  •  PDF   MP3  IURC Director's Report Development Process, Dr. Bob Pauly, Indiana Utility Regulatory Commission (IURC)
  •  PDF   MP3  IRP Public Advisory Process, Barbara Smith, Office of Utility Consumer Counselor (OUCC)
  •  PDF   MP3  IRP Building Blocks & Development, Joan Soller, IPL
  •  PDF   MP3  Load Forecasting, Matt Rice, Vectren
  •  PDF   MP3  Resources, Scott Park, Duke Energy
  •  PDF   MP3  Scenarios & Sensitivities, Ted Leffler, IPL
  •  PDF   MP3  Regional Transmission Organizations (RTOs), Paul Kelly & Bill SeDoris, NIPSCO
  •  PDF   MP3  Resource Modeling, Ismael Martinez Jr., I&M

Need more information? Contact us