Investor Presentaiton

STUDIES & REPORTS INFORMING THE CLEAN ENERGY POLICY BRIEF Accelerating Our Energy Transition: Identifying Pathways to Achieve Oregon's Clean Energy and Climate Goals OREGON STUDIES: STATEWIDE AND LOCAL Electrification Impact Analysis: Phase 1 Eugene Water & Electric Board | October 2020 Electrification Impact Analysis: Phase 2 Eugene Water & Electric Board | November 2021 Exploring Pathways to Deep Decarbonization for the Portland General Electric Service Territory Evolved Energy Research | April 2018 Oregon Clean Energy Pathways Analysis Evolved Energy Research, GridLab, and the Clean Energy Transition Institute | July 2021 Oregon Energy Policy Simulator Insights: Recent Development, Policies to Meet Emissions Goals Energy Innovation | March 2022 Vision 2050: Destination Zero NW Natural Carbon Neutrality Scenario Analysis NW Natural | November 2021 Destination Zero - NW Natural Carbon Neutrality Scenario Analysis NW Natural REGIONAL Affordable and Reliable Decarbonization Pathways for Montana Vibrant Clean Energy and Grid Lab | February 2021 Meeting the Challenge of Our Time: Pathways to a Clean Energy Future for the Northwest - An Economy-wide Deep Decarbonization Pathways Study Clean Energy Transition Institute | June 2019 Pacific Northwest Zero-Emitting Resources Study Energy and Environmental Economics (E3) | January 2020 Pacific Northwest Pathways to 2050: Achieving an 80% reduction in economy-wide GHGs by 2050 Evolved Energy Research | November 2018 Seattle City Light Electrification Assessment Electric Power Research Institute (EPRI) | January 2022 Washington 2021 State Energy Strategy: Transitioning to an Equitable Clean Energy Future Evolved Energy Research | December 2020 NATIONAL AND OTHER STATE AND LOCAL STUDIES Analysis of Selective 2010-2018 Economy-Wide Decarbonization Studies Clean Energy Transition Institute | April 2018 The Challenge of Retail Gas in California's Low-Carbon Future: Technology options, Customer Costs, and Public Health Benefits of Reducing Natural Gas Use Energy and Environmental Economics (E3) | April 2020 Getting to Net Zero - Pathways Toward Carbon Neutrality: A Review of Recent Mid-Century Deep Decarbonization Studies for the United States Energy and Environmental Economics (E3) | July 2021 LA100: The Los Angeles 100% Renewable Energy Study National Renewable Energy Laboratory (NREL) | March 2021 Princeton Net-Zero America Project Evolved Energy Research | June 2020 The Role of Clean Fuels and Gas Infrastructure in Achieving California's Net Zero Climate Goal SoCal Gas | October 2021 The Role of Electricity in Decarbonizing California's Energy System Energy and Environmental Economics (E3) | September 2021 If there are any major studies or reports missing from this list, please send them by July 18 to: [email protected] 00 8

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