IRP cover image 

Integrated Resource Plan—planning for the future

The Integrated Resource Plan (IRP) is a forecast of conservation resources and supply-side resource additions that appear to be cost effective to meet the growing needs of our customers over the next 20 years.

We know these forecasts will change as the future unfolds and conditions change.

The IRP:

  • Examines the many energy-resource options available to PSE, including the maximum amount of new energy "supply" we can acquire through energy efficiency.
  • Makes a thorough, objective assessment of the benefits, costs and risks associated with each energy-supply option.
  • Analyzes the region's population and economic trends, including a forecast of PSE customers' natural gas and electricity needs two decades into the future.
  • Evaluates political and economic policies and trends, and their potential impact on energy production, usage and availability.

Every two years, a team of in-house economists, energy specialists, environmental advocates, demographers and other experts develops a new IRP.


2019 IRP Plan Public Participation

Information and presentations concerning the 2019 public participation process are available below. The Work Plan for the 2019 IRP will be filed with the Washington Utilities and Transportation Commission on or before July 13, 2019. PSE intends to remove the 2017 IRP meeting archive by or before that date, but materials concerning that process will be available upon request.
The IRP Advisory Group (IRPAG) and the Technical Advisory Group (TAG) are teams of external stakeholders and regulators who meet to provide input during the integrated resource planning process. Their valuable input helps to guide the development of PSE's Integrated Resource Plan (IRP).
The kickoff meeting for the 2019 IRP was on May 30, 2019. The meeting covered team introductions, basic IRP education, ground rules, electric scenarios and sensitives, and system planning.

IRP draft charters and draft meeting schedules:

  1. IRP TAG charter
  2. IRPAG charter
  3. IRP Stakeholder meeting schedule

Materials from the May 30 meeting:

  1. Meeting agenda
  2. Presentation materials
  3. Draft stakeholder charter
  4. Final meeting notes


The first TAG meeting was held on July 26, 2018 at Bellevue College. Please see agenda for additional details. The meeting will cover electric resource costs and the TAG Charter. Meeting materials include:

  1. Meeting agenda
  2. Updated draft TAG charter
  3. PSE 2019 Work Plan, filed July 13, 2018
  4. HDR presentation slides - electric resource costs
  5. HDR draft electric resource costs report
  6. IRP TAG Meeting 1 Slide Deck with updated HDR presentation slides
  7. Handout 1: Comparison Generic Resource Costs
  8. Handout 2: 2019 IRP Generic Renewable Inputs
  9. Handout 3: 2019 IRP Generic Energy Storage Inputs
  10. Handout 4: 2019 IRP Generic Thermal Inputs
  11. Handout 5: Document detailing changes between first issue of HDR draft materials and the TAC meeting
  12. Handout 6: Letter from Willard Westre to PSE dated June 14, 2018
  13. Handout 7: Action item report from May 30 IRPAG meeting
  14. Final meeting summary from TAG 1 meeting July 26, 2018

PSE received questions concerning the HDR report prior to the meeting.
PSE’s responses are provided below:

  1. PSE and HDR responses to pre-TAG #1 meeting Questions and Answers dated July 7, 2018

PSE received feedback on the HDR report by stakeholders. The feedback was due by August 2 and PSE responded on August 16.
The documentation is provided below:

  1. TAG comments and PSE responses dated August 16, 2018

The second IRPAG meeting was held on Tuesday, August 28 from 6 to 8 p.m. at the Meydenbauer Center located in Bellevue. The meeting covered IRP overview, load forecasts, planning standards, and electric resource costs. Meeting materials include:

  1. Meeting agenda
  2. IRP public comment guidelines
  3. PSE presentation slides
  4. Draft meeting summary

2017 IRP Advisory Group

Information and presentations for the 2017 IRP Advisory Group meetings are available below.

Show meeting information »

1: Friday, June 17, 2016—IRP Advisory Group
2: Monday, July 25, 2016—Thermal Generation RAC
  • PSE has worked with Black and Veech on thermal plant acquisition and development work for some time. They have been the primary source of plant cost assumptions for IRPs in the past.
  • They, along with others, will be available to discuss updates to their detailed cost assumptions.
  • The focus is on details needed for portfolio modeling, not levelized cost screening.
  • Meeting Notes
  • Presentation
  • Meeting Handouts
3: Wednesday, July 27, 2016—DSR-AC and IRP Advisory Group
  • DSR-AC: 9 am to noon. Navigant is replacing Cadmus in consulting on conservation resource potential assessments. Representatives will be here to walk through the details of how they will be approach that work.
  • IRPAG: 12:30 to 3:30 pm. Focus on discussing scenarios and sensitivities for both electric and gas. While there may be overlap in some areas, we will discuss scenarios that will be different.
4: Monday, August 22, 2016—Renewable RAC
  • Renewable Resources: 9 am – 12:30 pm. PSE has worked with RES on renewable resource acquisition and development for some time. RES has been the primary source of plant cost assumptions for IRPs in the past and will be available to discuss updated assumptions.
  • Energy Storage: 1 pm to 3 pm. Focus on energy storage with several developers joining us in person or via web. Will include RES energy Storage and a few others.
  • Meeting Notes
  • Presentation
5: Wednesday, August 31, 2016—IRP Advisory Group
  • Continue discussion of Scenarios and Sensitivities.
  • Focus on how PSE will approach each of the issues identified.
  • Meeting Notes
  • Presentation
6: Monday, September 26, 2016—GRAC and IRP Advisory Group
7: Thursday, October 27, 2016
  • IRPAG: 
    • Gas Resource Advisory Committee: Discuss details of  supply-side natural gas resources for modeling, including timing costs, and what expansions would be contingent on different market participants.
    • Electric Resource Alternative Assumptions
    • Final scenarios discussion and power prices
8: Monday, November 14, 2016—IRP Advisory Group
  • IRPAG: 
    • Electric and gas load forecasts: customers, loads and peaks
    • Electric resource needs — or check-in if not final
    • Gas resource needs
    • Discuss regional resource adequacy and approach to addressing market reliance given regional short-fall in 2022
8a: Wednesday, December 14th, 2016-IRPAG meeting–postponed
  • DSR-TAC: Review Conservation Potential Assessment
  • Final Scenario Power Prices
  • Final Resource Assumptions (including Montana Wind)
9: Wednesday, January 25, 2017—IRP Advisory Group
10: Friday, February 3, 2017—IRP Advisory Group

11: Thursday, March 16, 2017—IRP Advisory Group

12: Monday, May 22, 2017—IRP Advisory Group

13: June 22, 2017 IRP Advisory Group

13b: Demand Side Resource Conservation Potential Assessment Report
authored by Navigant was filed with the WUTC on Friday, June 30.

14: July 21, 2017 IRP Advisory Group

15: August 11, 2017—IRP Advisory Group

    • Review final draft electric resource plans
    • Review draft results of scenarios and sensitivities
      that will be presented in draft IRP
    • Review final draft gas resource plans
    • Final Meeting Notes
    • PSE Presentation
16: Written Q & As provided to PSE 2017 IRPAG “Share” email list distribution
       between 12/16 & 08/17
17: October 5, 2017—IRP Advisory Group: