APS Regional Energy Overview

Coal Exit Strategy - 7 Years Earlier than Originally Projected Navajo 315 MW (now retired) 2018 Cholla 387 MW 2025 2019 2031 Coal Free ¹Starting in 2023 and subject to the necessary approvals, Four Corners will move to a seasonal operating schedule that will further reduce annual carbon emissions at Four Corners by an estimated 20-25%. Remaining Four Corners 970 MW 2031¹ 2025 Original projection 2038 PINNACLE WEST CAPITAL CORPORATION

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