Investor Presentaiton

AT A GLANCE Arizona's Largest Electric Company Service Territory¹ Nevada Utah Colorado Key Facts as of Dec. 31, 2021 Consolidated assets $22B FARMINGTON LAS VEGAS Arizona FOUR CORNERS Revenues $3.8B New Mexico KINGMAN FLAGSTAFF WINSLOW HOLBROOK CHOLLA Market cap ~$8B BAGDAD Generating capacity owned California or leased year end ~6.3 GW PRESCOTT PHOENIX PALO VERDE OCOTILLO GLOBE WEST PHOENIX SUNDANCE 00 REDHAWK CASA YUMA GILA BEND GRANDE Customers 1.3M Current % from clean energy ~50% YUCCA SAGUARO TUCSON APS Retail Electric Service Territory Major APS Power Plants Nuclear plant in U.S. Largest DOUGLAS NOGALES Principal APS Transmission Lines Major APS Solar Power Plants As of December 31,2021 PINNACLE WEST CAPITAL CORPORATION

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