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Integrated System Plan

The electric power industry is undergoing a dramatic transformation fueled by changing customer expectations and desires, technological innovations and a focus on the environment.

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    Integrated System Plan Update

    We are one of the first U.S. utilities to shift from an Integrated Resource Plan (IRP) to an Integrated System Plan (ISP). While an IRP focuses solely on generation resources, an ISP plans for the entire power system in one process and integrates a variety of community stakeholder and customer perspectives.

    This first ISP serves as a holistic roadmap for the power system of the future. It considers evolving customer needs for reliability, affordability and sustainability while also achieving our 2035 Sustainability Goals.

    See how we are planning for the power system of the future.

    Download the ReportDocument is a PDF.

    This new Integrated System Plan:

    • Collaboratively integrates all internal planning functions for generation, transmission, distribution and customer-sided resources
    • Adapts to evolving industry demands and enhances long-term resource value for our customers and communities
    • Addresses energy challenges through the lenses of sustainability, reliability and affordability
    • Creates inclusive opportunities for active external stakeholder engagement

    Companion documents

    View the ISP Executive Summary and other companion documents to learn more.

    Engaging our stakeholders along the way

    In the summer of 2021, SRP hosted an ISP Summer Stakeholder Series to update, educate and engage with external community stakeholders regarding the ISP transition. Working alongside communities is how SRP has helped to successfully grow the Valley. This transition is no different. Working with you through this transition is essential as we chart the course to a successful ISP.

    ISP Stakeholder Engagement Opportunities

     

    Other Engagement Opportunities

    • Technical Working Sessions, open to all Large Stakeholders and Advisory Groups with an interest in the technical aspects of power system planning, will be offered around various topics of interest throughout the project.
    • Advisory Group Technical Subgroups, composed of self-selected Advisory Group members who have a strong interest in diving into specific Integrated System Plan topics, will have sessions around various topics of interest throughout the project.
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    Board & Council Work Study Sessions

    Board & Council Study Session Day 1

    Aug. 29, 2023, 9:30 a.m.–12:30 p.m. (MST)

    Meeting Documents

    Board & Council Study Session Day 2

    Aug. 30, 2023, 9:30 a.m.–12:30 p.m. (MST)

    Meeting Documents

    ISP Large Stakeholder Group

    Meeting 1: ISP Launch and Vision

    Nov. 30, 2021, 9–11 a.m. (MST)

    Meeting Documents

    Meeting 2: ISP Study Plan

    April 29, 2022, 8 a.m. - 10 a.m. (MST)

    Meeting Documents

    Meeting 3: ISP Early Key Findings

    May 12, 2023, 10 a.m. - 1 p.m. (MST)

    Meeting Documents

    Meeting 4: ISP Path Forward

    September 28, 2023, 9:30 a.m. - 1 p.m. (MST)

    Meeting Documents

    ISP Technical Working Sessions

    Integrated System Plan Study Plan Details - Modeling Ecosystem

    April 29, 2022, 10:15 a.m.–12 p.m. (MST) 

    Meeting Documents

    Inflation Reduction Act

    January 17, 2023, 9–11:30 a.m. (MST) 

    Meeting Documents

    Inverter-Based Resource Integration

    February 24, 2023, 1–3:30 p.m. (MST) 

    Meeting Documents

    Regional Market Developments

    March 31, 2023, 9–11:30 a.m. (MST) 

    Meeting Documents

    Evolution of Time-of-Day Programs

    July 12, 2023, 1–3:30 p.m. (MST) 

    ISP Advisory Group

    Meeting 1: Meet & Greet Role Discussion/Orientation

    Nov. 18, 2021, 1–3 p.m. (MST)

    Meeting Documents

    Meeting 2: Planning Amidst Change

    Dec. 6, 2021, 3–5 p.m. (MST)

    Meeting Documents

    Meeting 3: Our Power Future, Together

    Jan. 19, 2022, 9–11:30 a.m. (MST)

    Meeting Documents

    Advisory Modeling Subgroup Meeting 1: ISP Modeling Ecosystem

    Feb. 11, 2022, 9–11:30 a.m. (MST)

    Meeting Documents

    Meeting 4: Scenario Planning Framework – Part 2 & Strategic Approach Options – Part 1

    Feb. 15, 2022, 9 a.m–12 p.m. (MST)

    Meeting Documents

    Meeting 5: Strategic Approach Options – Part 2 & Integrated System Plan Metrics – Part 1

    March 14, 2022 9 a.m–12 p.m. (MST)

    Meeting Documents

    Advisory Modeling Subgroup Meeting 2: Inputs for the ISP Study Plan

    March 21, 2022 10 a.m–12:30 p.m. (MST)

    Meeting Documents

    Advisory Modeling Subgroup Meeting 3: Inputs for the ISP Study Plan – Part 2

    April 4, 2022 1–2:30 p.m. (MST)

    Meeting Documents

    Meeting 6: Integrated System Plan Study Launch [Hybrid]

    April 15, 2022 9 a.m.–1 p.m. (MST)

    Meeting Documents

    Meeting 7: Final Metrics, Customer Research Update & Process Reflections

    June 8, 2022 9 a.m.–12:30 p.m. (MST)

    Meeting Documents

    Meeting 8: ISP Progress Update & Engagement Framework for the Synthesize Phase

    September 28, 2022 8:30 a.m.–3:00 p.m. (MST)

    Meeting Documents

    Advisory Modeling Subgroup Meeting 4: In-Depth ISP Analysis Review Part 1

    October 25, 2022 1:30–4:00 p.m. (MST)

    Meeting Documents

    Meeting 9: Continuing Forward

    January 27, 2023 8:30 a.m.–1:00 p.m. (MST)

    Meeting Documents

    Meeting 10: ISP Preliminary Results

    March 10, 2023 8:30 a.m.–2:30 p.m. (MST)

    Meeting Documents

    Meeting 11: ISP Analysis Key Findings & Modeling Subgroup Technical Q&A Session

    April 21, 2023 8:30 a.m.–12:30 p.m. (Modeling Subgroup 12:30–2:30 p.m.) (MST)

    Meeting Documents

    Meeting 12: ISP Analysis Key Findings & ISP Draft Strategies

    May 19, 2023 8:30 a.m.–2:30 p.m. (MST)

    Meeting Documents

    Meeting 13: Meeting Forward Together Part 1

    August 11, 2023 8:30 a.m.–4:00 p.m. (MST)

    Meeting Documents

    Meeting 14: Moving Forward Together Part 2

    September 8, 2023 8:30 a.m.–12:30 p.m. (MST)

    Meeting Documents

    Summer Series Recap

    To see a summary from the Summer Series stakeholder engagements, view the ISP Summer Series Summary ReportDocument is a PDF

    ISP Summer Series Meeting 1: "Since We Last Met"

    June 16, 2021, 9:30–11:30 a.m. (PST)

    In this webinar, we provided an update on actions taken in accordance with Strategic Resource Directions from the 2017-2018 Integrated Resource Plan.

    Overview of Topics

    • 2017-2018 Integrated Resource Plan Refresh
    • 2017-2018 Integrated Resource Plan Strategic Direction Progress
    • System Planning Foundations (Distribution, Transmission and Load Growth)

    Webinar 1 Documents

    ISP Summer Series Meeting 2: "Near-Term Planning"

    July 22, 2021, 10 a.m.–noon (PST)

    In this webinar, we educated stakeholders and discussed the forces of change affecting the industry and SRP’s near-term 2021-2024 planning focus.

    Overview of Topics

    • Integrated Resource Plan to Integrated System Plan transition
    • Current planning environment
    • Near-term reliability challenges and solutions

    Webinar 2 Documents

    ISP Summer Series Meeting 3: "Where We Want to Go"

    Aug. 16, 2021, 8:30–10:00 a.m. (PST)

    Engaged stakeholders in early development of the ISP.

    Overview of Topics

    • IRP to ISP transition topics
    • ISP stakeholder involvement & education opportunities

    Webinar 3 Documents

    ISP Summer Series Meeting 4: "Near-Term Planning: Part 2"

    Aug. 23, 2021, 10 – 11:30 a.m. (PST)

    In this webinar, we informed stakeholders about the next decision in SRP’s near-term plan.

    Overview of Topics

    • SRP’s next resource decision in the near-term “AND” strategy

    Webinar 4 Documents

    Related links

    SRP will not be providing additional stakeholder updates on the 2017-2018 IRP following the February 2021 Appendix publication.

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