Investor Presentaiton

• • • • PacifiCorp Business Update Actual retail load for the nine months ending September 30, 2021, was 42,553 GWh; a 1,790 GWh (4.39%) increase compared with the same time period last year, primarily due to favorable residential and commercial customer usage, favorable weather and an increase in the average number of customers Energy Vision 2020, Pryor Mountain wind facility, and repowering of Foote Creek I wind project are fully in-service Energy Vision 2024 projects are on track - - 590 MWs of new wind in Wyoming Repowering development milestones are on track for an additional 93 MWs Transmission projects include a new 416-mile 500-kV line from Aeolus to Mona, and a new 59-mile 230-kV line from Windstar to Shirley Basin Negotiations with partners are progressing favorably on the Boardman-Hemingway 290-mile 500-kV transmission project to support 2026 in-service PacifiCorp's 2021 Integrated Resource Plan (IRP) was filed with its state commissions September 1, 2021. Developed with comprehensive data analysis and active stakeholder input spanning more than a year-and-a-half, the plan results in a 74% reduction of greenhouse gas emissions from 2005 levels by 2030 • • TM TerraPower, a nuclear innovation company founded by Bill Gates, is seeking to site a Natrium advanced nuclear reactor demonstration project at a retiring coal plant site in Wyoming PacifiCorp is evaluating advanced clean energy technologies such as pumped hydro storage 39

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