Integrated Resource Plan

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 an IRP update in 2022.

Read our 2022 IRP


Get Involved

We held four public workshops for our 2022 IRP. All workshops were held over Zoom and open to the public.

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Completed Workshops

Tuesday, June 19, 2022

Thursday. June 30, 2022

Wednesday, March 2, 2022

Monday, December 20, 2021

Provide Feedback

Click here to email our team your questions and comments about our IRP.

Clean Energy Implementation Plan

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.

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

August 17, 2021 CEIP workshop

Tacoma Power Conservation Potential Assessment 2022-2041

In 2021, the Tacoma Public Utility Board adopted a ten-year 2022-2031 conservation potential and a two-year 2022-2023 conservation target based on the 2022-2041 Conservation Potential Assessment (CPA). The CPA helps us determine where the most cost-effective energy efficiency lies and where to target program efforts. The results of a CPA feed into our Integrated Resource Plans (IRPs) to help us optimize our electric supply-side and demandside resources. The next assessment will be conducted in 2023. 

Click here to read the Tacoma Power Conservation Potential Assessment, 2022-2041
Demand Response Potential Study

Demand response saves electricity during times of high demand. Consumers play a significant role in the operation of the electric grid by reducing or shifting their electricity usage during peak periods in response to time-based rates or other forms of financial incentives. Engaging customers in demand response efforts includes offering time-based rates such as time-of-use pricing, critical peak pricing, variable peak pricing, real-time pricing, and critical peak rebates. It also includes direct load control programs, which allow power companies to cycle air conditioners and water heaters on and off during periods of peak demand in exchange for a financial incentive and lower electric bills.

Tacoma Power has recently conducted a Demand Response Potential Study.

Click here to view the results

Previous IRPs

2001 IRP 

2010 IRP

2013 IRP

2015 IRP

2017 IRP Update

2020 IRP