Final 2021 Integrated Resource Plan
The Final 2021 Integrated Resource Plan (IRP) was published on April 1, 2021. This IRP was developed using feedback from stakeholders through a series of webinars between May 2020 and April 2021. PSE thanks stakeholders for contributing their time and thoughtful input to help shape the IRP. The Final 2021 IRP report, its chapters, appendices and supporting data files can be viewed and downloaded below.
Final 2021 IRP Report
- About PSE and Contents of Chapter Book [PDF, 7 MB]
- Definitions and Acronyms [PDF, 0.4 MB]
- Final 2021 IRP Chapter Book [PDF, 45 MB]
- Final 2021 IRP Appendix Book
Individual chapters and appendices can be found below.
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Chapters
- Chapter 1: Executive Summary [PDF, 0.9 MB]
- Chapter 2: Clean Energy Action Plan [PDF, 0.9 MB]
- Chapter 3: Resource Plan Decisions [PDF, 3.7 MB]
- Chapter 4: Planning Environment [PDF, 2 MB]
- Chapter 5: Key Analytical Assumptions [PDF, 3.4 MB]
- Chapter 6: Demand Forecasts [PDF, 3.4 MB]
- Chapter 7: Resource Adequacy Analysis [PDF, 1.4 MB]
- Chapter 8: Electric Analysis [PDF, 19 MB]
- Chapter 9: Natural Gas Analysis [PDF, 5.7 MB]
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Appendix
Please note that there are multiple supporting files associated with Appendices E, H and I. You may click on the appendix name to show the list of supporting files for each appendix. Some file sizes are large and may take several minutes to download.
- Appendix A: Public Participation [PDF, 42 MB]
- Appendix B: Legal Requirements [PDF, 2 MB]
- Appendix C: Environmental Regulations [PDF, 3 MB]
- Appendix D: Electric Resource Alternatives [PDF, 7.5 MB]
- Appendix E: Conservation Potential Assessment and Demand Response Assessment
- Appendix F: Demand Forecasting Models [PDF, 2.3 MB]
- Appendix G: Electric Analysis Models [PDF, 2.5 MB]
- Appendix H: Electric Analysis Inputs and Results
- Electric Analysis Inputs and Results [PDF, 5 MB]
- Hourly inputs for the AURORA LTCE model [Excel, 58 MB]
- Inputs for the AURORA LTCE model [Excel, 5 MB]
- Scenario Power prices used in AURORA [Excel, 49.8 MB]
- Carbon price calculations for the 2021 IRP [Excel, 0.2 MB]
- Annual demand forecasts for the 2021 IRP [Excel, 0.02 MB]
- Electric DSR data for the 6-Year ramp rate sensitivity [Excel, 156 MB]
- Electric DSR data for the base scenario [Excel, 185 MB]
- Electric DSR data for the Non-Energy impacts sensitivity [Excel, 155 MB]
- Electric DSR data for the Social Discount rate sensitivity [Excel, 152 MB]
- Hourly renewable inputs for the Idaho Solar resource [Excel, 37 MB]
- Hourly renewable inputs for the Idaho Wind resource [Excel, 52 MB]
- Hourly renewable inputs for the Montana Wind resource [Excel, 52 MB]
- Hourly renewable inputs for the Montana Wind resource [Excel, 56 MB]
- Hourly renewable inputs for the Offshore Wind resource [Excel, 27 MB]
- Hourly renewable inputs for the Washington Solar resource [Excel, 37 MB]
- Hourly renewable inputs for the Washington Wind resource [Excel, 49 MB]
- Hourly renewable inputs for the Wyoming Solar resource [Excel, 37 MB]
- Hourly renewable inputs for the Wyoming Wind resource [Excel, 54 MB]
- Hourly renewable inputs for the Wyoming Solar resource [Excel, 37 MB]
- Hourly renewable inputs for the Wyoming Wind resource [Excel, 55 MB]
- PLEXOS Outputs that calculate the Flexibility Benefits [Excel, 0.02 MB]
- PLEXOS Outputs that show the portfolio flexibility violations [Excel, 1 MB]
- AURORA Outputs used to calculate levelized resource costs [Excel, 6 MB]
- AURORA Outputs of all modeled sensitivities [Excel, 0.9 MB]
- AURORA stochastic modeling results [Excel, 3 MB]
- Appendix I: Natural Gas Analysis Results
- Natural Gas Analysis Results [PDF, 3 MB]
- Gas DSR data for the 6-Year ramp rate sensitivity [Excel, 0.7 MB]
- Gas DSR data for the base scenario [Excel, 0.7 MB]
- Gas DSR data for the Non-Energy impacts sensitivity [Excel, 0.7 MB]
- Gas DSR data for the Social Discount rate sensitivity [Excel, 0.7 MB]
- SENDOUT modeling results [Excel, 0.4 MB]
- Appendix J: Regional Transmission Resources [PDF, 3.3 MB]
- Appendix K: Economic, Health and Environmental Benefits Assessment of Current Conditions [PDF, 10 MB]
- Appendix L: Temperature Trend Study [PDF, 1.5 MB]
- Appendix M: Delivery System Planning [PDF, 6.3 MB]
