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. Our last full IRP refresh was conducted in 2015, and an update was completed in 2017.
The 2020 IRP is available for public comment and will be brought to the Public Utility Board for approval on August 12. We encourage you to comment on the 2020 IRP either by emailing the IRP manager or submitting your comments in the form below. You may attend the virtual Public Utility Board meeting on August 12 and make comments or submit them directly to the Public Utility Board via email by 2 p.m. on August 11.
Read the 2020 IRPComments
If you would like to submit comments or feedback on Tacoma’s IRP electronically, please use this form.
- 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.
The 2020 IRP is available for public comment and will be brought to the Public Utility Board for approval on August 12. You are encouraged to comment on the 2002 IRP either by contacting the IRP manager or by submitting comments using the above form. You may attend the virtual Public Utility Board meeting on August 12 and make comments or submit them directly to the Public Utility Board via email by 2 p.m. on August 11.
A shorter, more accessible version of the 2020 IRP will be available at the beginning of October.
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
Click here to view the meeting materials
Other Resources
- Archives
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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