NYSE PNW 66.77 -0.34 20 min delay HOME ABOUT US INVESTORS NEWSROOM CORPORATE RESPONSIBILITY PINNACLE WEST DECLARES QUARTERLY DIVIDEND PINNACLE WEST REPORTS 2021 THIRD QUARTER EARNINGS FINANCIALS Pinnacle West Reports 3rd Quarter 2021 Results November 5, 2021 3rd Quarter 2021 Earnings News Release 3rd Quarter 2021 Presentation 2021 Form 10-Q 3rd Quarter 2021 Webcast NEWS Pinnacle West Reports 2021 Third-Quarter Results, Shares Long-Term Financial Outlook November 5, 2021 Lower quarterly revenue driven by the effects of milder weather Strong operational performance, increased sales and customer growth help offset weather impacts Company to pursue legal challenges following recent rate case decision Pinnacle Wes... View News Story » VIEW ALL » FEATURE REPORTS 2020 Annual Report 2021 Proxy Statement 2021 Shareholder Engagement EVENTS 3rd Quarter 2021 Earnings November 5, 2021 LISTEN TO WEBCAST DOWNLOAD PRESENTATION VIEW ALL » Site Map Contact Us Supplier Web Regulatory Compliance By using this website, you accept our Terms of Use and Privacy Policy agreements. All rights reserved. © 2021 Pinnacle West Capital Corporation. Powered By Q4 Inc. 5.56.0.1

NYSE PNW 66.77 -0.34 20 min delay HOME ABOUT US INVESTORS NEWSROOM CORPORATE RESPONSIBILITY CORPORATE RESPONSIBILITY CORPORATE RESPONSIBILITY Creating a Sustainable Energy Future At Pinnacle West and our primary subsidiary, Arizona Public Service (APS), our approach to sustainability is clear and simple: we work to advance a clean and healthy environment, a vibrant economy and strong communities, for today and for future generations. As Arizona stewards, we do what is right for the people and prosperity of our state. Our vision is to create a sustainable energy future for Arizona, while serving our customers with clean, reliable and affordable energy. Highlights EXECUTIVE LETTER A letter from our CEO and Vice President of Sustainability that outlines the highlights of our ESG accomplishments in 2020. PRIORITY SUSTAINABILITY ISSUES OVERVIEW An informed sustainability strategy is critical to creating value shared among multiple stakeholders. APS SUSTAINABILITY TIMELINE APS has made sustainability a priority throughout the years, learn more about our story. COLLABORATION, OPERATIONAL EXCELLENCE ADVANCE TOWARD CARBON-FREE FUTURE In the year since APS announced its commitment to 100% clean, carbon-free energy by 2050, the company has made steady progress. 2020 CORPORATE RESPONSIBILITY REPORT OVERVIEW Highlights of the substantive actions we took in the environmental, social and governance spaces. DIVERSITY, EQUITY AND INCLUSION Our commitment to Diversity, Equity and Inclusion is a key force driving the APS Promise and Principles. QUICK LINKS Earnings Events 10-K 10-Q Annual Statistical Report Proxy Statement Corporate Responsibility Report EMAIL ALERTS Press Releases SEC Filings Events Earnings Unsubscribe SUBMIT Site Map Contact Us Supplier Web Regulatory Compliance By using this website, you accept our Terms of Use and Privacy Policy agreements. All rights reserved. © 2021 Pinnacle West Capital Corporation. Powered By Q4 Inc. 5.56.0.1