Integrated Resource Plan
Learn more about Tacoma’s power supply and how we are planning to meet our future energy needs.
Mossyrock – One of Seven of Our Dams
The Integrated Resource Plan (IRP) is a tool to help Tacoma Power plan for an uncertain future so we can continue to meet our customers’ needs for decades to come. Approximately every four years, we complete a full refresh of the IRP. We also revisit and make small updates to the plan between the larger refresh years.
Read the full 2020 IRP report Read the summary 2020 IRP report- Public Input Process
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We welcome input from our community and hold a public input process as part of the development of each IRP. Our 2020 IRP process centered around a series of four half-day workshops with a stakeholder working group between late February and late June. Workshops are now complete. Workshop materials and records are available below.
Click here to read the full 2020 IRP report
Workshop One: Introductory Meeting
Click here to view the meeting materials
Click here to view the meeting notes
Click here to listen to a recording
Workshop Two: Key Inputs
Click here to view the meeting materials
Click here to view the meeting notes
Click here to watch a recording
Workshop Three: Current Resources and Future Options
Click here to view the meeting materials
Click here to view the meeting notes
Click here to watch a recording
Workshop Four: Analysis Results
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Other Resources
- Previous IRPs
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- 2015 IRP Technical Appendix
- IRP Compliance with Washington State standards
- Resource Adequacy Standard
- Climate Change Study
- BPA Product Analysis (Slive/Block vs. Block with Shaping Capacity Evaluation)
- Candidate Resources for Evaluation
- Development of Scenarios for the 2015 Integrated Resource Plan
- Power Price Forecast Presentation – June 2015
- Stakeholders Comments
- Energy Storage
- 2015 IRP Technical Appendix