Integrated Resource Plan
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. We completed a full refresh of the IRP in 2020 and will complete an update in 2022.
Read the full 2020 IRP report Read the summary 2020 IRP report
- Get Involved
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We welcome input from our community and offer a variety of ways for you to get involved.
Participate in a workshop
Tacoma Power’s IRP workshops are open to the public, and anyone is welcome to participate. We will hold four IRP workshops between December 2021 and August 2022. All workshops will be virtual.
Thursday, June 30, 2022
Details to be added
Tuesday, July 19, 2022
Details to be added
Click here to sign up for our mailing list.
Completed Workshops
Wednesday, March 2, 2022
- Click here to view workshop agenda
- Click here to view workshop preparation materials
- Click here to view workshop slides
- Click here to view workshop notes
- Click here to view the recording
Monday, December 20, 2021
- Click here to view workshop agenda
- Click here to view workshop preparation materials
- Click here to view workshop slides
- Click here to view workshop notes
- Click here to view the recording
Provide Feedback
We occasionally post key IRP documents for public review and feedback. We are currently seeking feedback on the assumptions we are making to model potential power resources. Click here to review our resource assumptions.
Click here to email our team your written feedback and comments.
- Clean Energy Implementation Plan
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In 2019, Governor Jay Inslee signed into law the Clean Energy Transformation Act (CETA), which commits the State of Washington to an electricity supply free of greenhouse gas emissions by 2045. The landmark law imposes new clean energy mandates on electric utilities in Washington as well as planning and reporting requirements. One of those new requirements is that utilities complete a Clean Energy Implementation Plan (CEIP) by January 1, 2022 and every four years thereafter. Our draft 2022 CEIP is available for you to review now. We will seek Public Utility Board approval of the plan in December 2021.
Review our plan
Click here to review the Clean Energy Implementation Plan
Click here to view our Clean Energy Implementation Plan indicator map
Comment on our Clean Energy Implementation Plan
CEIP Workshop Materials
We held two virtual workshops to review key aspects of the CEIP with the public.
October 4, 2021 CEIP workshop
- Click here to view a recording of this workshop
- Click here to view workshop notes
- Click here to review workshop slides
August 17, 2021 CEIP workshop
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
- 2020 IRP Appendix A
- 2020 IRP Summary
- 2020 IRP public input materials
- Workshop One: Introductory Meeting
- Workshop Two: Key Inputs
- Workshop Three: Current Resources and Future Options
- Workshop Four: Analysis Results
- 2015 IRP Technical Appendix