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SRP has identified strategies to guide power system planning through 2035.
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 have been making progress.
Since publishing the first Integrated System Plan, we have made significant progress in advancing the 10 ISP actions. These actions are designed to be specific steps that SRP can take today and moving forward to support the implementation of the System Strategies and SRP's long-term goals.
Learn more about SRP’s customer programs and electrification efforts
Read more about SRP’s RFPs through a 2024 news release, a 2025 news release or by exploring SRP’s general RFP site
SRP is currently experiencing changes driven by rapid economic growth, supply chain challenges, regulatory changes, climate change, and the increasing momentum behind decarbonization and electrification.
Given the rapid pace of change in the power industry, minimizing risk and meeting our customers’ needs over the next decade will require a complete transformation of the SRP power system, including:
As part of this transformation, SRP has evolved to an Integrated System Plan which engages hundreds of community representatives while providing key insights and a roadmap to serving our community’s energy needs.
SRP is currently experiencing changes driven by rapid economic growth, supply chain challenges, regulatory changes, climate change, and the increasing momentum behind decarbonization and electrification.
Given the rapid pace of change in the power industry, minimizing risk and meeting our customers’ needs over the next decade will require a complete transformation of the SRP power system, including:
As part of this transformation, SRP has evolved to an Integrated System Plan which engages hundreds of community representatives while providing key insights and a roadmap to serving our community’s energy needs.
During our ISP analysis, we studied how customer needs, infrastructure buildout and operations could evolve under a wide range of future scenarios and uncertainties. We also learned how our actions can influence reliability, affordability and sustainability.
We will need to double or triple resource capacity over the next decade.
A least-cost energy portfolio combines new renewables with conventional power sources.
In a high-load-growth scenario, without firm* power sources, the power system cannot satisfy reliability requirements.
We will need to evolve customer programs to help shift consumer behavior.
We will need to make significant investments in new and upgraded transmission and distribution infrastructure.
We will need to double or triple resource capacity over the next decade.
A least-cost energy portfolio combines new renewables with conventional power sources.
In a high-load-growth scenario, without firm* power sources, the power system cannot satisfy reliability requirements.
We will need to evolve customer programs to help shift consumer behavior.
We will need to make significant investments in new and upgraded transmission and distribution infrastructure.
*Firm resources include reliable power sources at all hours and over long durations.
Invest in renewable resources and storage to manage fuel consumption and drive carbon and water reductions.
Invest in firm generation, including natural gas, to support reliability and manage affordability, while also supporting advancement of emerging firm technologies.
Proactively plan to expand transmission infrastructure to enable generator interconnections and load growth.
Ensure distribution grid readiness to maintain reliability and enable customer innovations to drive carbon reductions.
Explore partnerships and supply chain and development solutions that manage cost and availability to meet the pace of transformation.
Evolve pricing and customer programs to improve economy-wide carbon reductions and pace infrastructure development, while recognizing customers' diverse needs.
Reinforce and maximize value of existing infrastructure with strategic investments to manage affordability and ensure future performance, grid security and resilience.
By planning for the entire power system within one process, we can identify solutions across the entire system and how those solutions must work together to better serve our customers. Looking ahead, here are some things our customers can expect from us:
Explore our document repository for a full list of available resources from SRP’s ISP process and analysis.
(Study Plan Companion Document)Aug. 29, 2023, 9:30 a.m.–12:30 p.m. (MST)
Aug. 30, 2023, 9:30 a.m.–12:30 p.m. (MST)
Nov. 30, 2021, 9–11 a.m. (MST)
April 29, 2022, 8 a.m. - 10 a.m. (MST)
May 12, 2023, 10 a.m. - 1 p.m. (MST)
September 28, 2023, 9:30 a.m. - 1 p.m. (MST)
April 29, 2022, 10:15 a.m.–12 p.m. (MST)
January 17, 2023, 9–11:30 a.m. (MST)
February 24, 2023, 1–3:30 p.m. (MST)
March 31, 2023, 9–11:30 a.m. (MST)
July 12, 2023, 1–3:30 p.m. (MST)
Nov. 18, 2021, 1–3 p.m. (MST)
Dec. 6, 2021, 3–5 p.m. (MST)
Jan. 19, 2022, 9–11:30 a.m. (MST)
Feb. 11, 2022, 9–11:30 a.m. (MST)
Feb. 15, 2022, 9 a.m–12 p.m. (MST)
March 14, 2022 9 a.m–12 p.m. (MST)
March 21, 2022 10 a.m–12:30 p.m. (MST)
April 4, 2022 1–2:30 p.m. (MST)
April 15, 2022 9 a.m.–1 p.m. (MST)
June 8, 2022 9 a.m.–12:30 p.m. (MST)
September 28, 2022 8:30 a.m.–3:00 p.m. (MST)
October 25, 2022 1:30–4:00 p.m. (MST)
January 27, 2023 8:30 a.m.–1:00 p.m. (MST)
March 10, 2023 8:30 a.m.–2:30 p.m. (MST)
April 21, 2023 8:30 a.m.–12:30 p.m. (Modeling Subgroup 12:30–2:30 p.m.) (MST)
May 19, 2023 8:30 a.m.–2:30 p.m. (MST)
August 11, 2023 8:30 a.m.–4:00 p.m. (MST)
September 8, 2023 8:30 a.m.–12:30 p.m. (MST)
Oct. 18, 2024 12:00 p.m. - 4:10 p.m. (MST)
Aug. 11, 2025 9 a.m. - 1 p.m. (MST)
To see a summary from the Summer Series stakeholder engagements, view the ISP Summer Series Summary Report
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.
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.
Aug. 16, 2021, 8:30–10:00 a.m. (PST)
Engaged stakeholders in early development of the ISP.
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.
SRP will not be providing additional stakeholder updates on the 2017-2018 IRP following the February 2021 Appendix publication.
