Fourth Quarter 2023 Earnings Review and Business Update

Electric utilities & infrastructure EIGHT UTILITIES IN HIGH-QUALITY REGIONS OF THE U.S. CAROLINAS FLORIDA MIDWEST Duke Energy Carolinas (NC/SC) Duke Energy Progress (NC/SC) Duke Energy Florida Duke Energy Indiana Duke Energy Ohio / Kentucky REGULATED ELECTRIC 2023 EARNINGS BASE REGULATED ELECTRIC 2024-2028 CAPEX DEO/DEK - Electric DEO - Electric 4% DEI 12% DEK - Electric 1% 4% DEI 10% BALANCED CUSTOMER MIX Wholesale 17% Residential DEC DEC 34% 37% 36% DEF GWh $89 B $66 B Industrial DEF 18% Sold 19% 22% DEP 24% DEP 32% Commercial 30% DUKE ENERGY. FOURTH QUARTER 2023 EARNINGS REVIEW AND BUSINESS UPDATE // 48

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