IRP Advisory Council
UniSource is forming a Resource Planning Advisory Council (RPAC) which will solicit stakeholder input and provide transparency on development of the company’s 2026 Integrated Resource Plan (IRP). The RPAC will foster in-depth discussions with engaged community stakeholders. Members will include residential and business customers, environmental and low-income advocates, and representatives from local governments and educational institutions.
UniSource believes that input from a diverse, knowledgeable group of community members will inform a long-term plan that helps our community achieve a flexible resource plan that maintains reliable and affordable electric service.
Stay Informed on UNSE’s 2026 IRP
Follow-up and stay informed on the 2026 IRP (Docket No. E-99999A-25-0058) on the Arizona Corporation Commission (ACC) webpage.
If you would like to receive notice of each filing made in the docket you will need to create an account on the ACC website portal.
Details on how to follow a docket are provided here.
IRP Dates and Materials
The UniSource RPAC will take place remotely on the following dates. Dates and topics are subject to change. Materials will be posted as they become available.
August 27, 2025: RPAC Purpose & Ground Rules, Utility Basics and UniSource Overview
October 22, 2025: Technical Session: IRP Basics, Key Assumptions, and Inputs
December 17, 2025: Technical Session: Portfolios and Modeling
February 25, 2026: Focus On: Affordability, Rates, and New Resources
April 23, 2026: Technical Session: Preferred Portfolio
May 1, 2026: Modeling inputs due to stakeholders (no meeting)
June 24, 2026: Review and Wrap-up
July 29, 2026: Public Workshop (Virtual)
August 3, 2026: IRP Due Date (no meeting)
Membership
Membership in the UniSource RPAC is by invitation. Invitations will be sent by August 8th, 2025. If you believe your organization has been omitted in error, please email us at RPAC@tep.com.