8-K

PINNACLE WEST CAPITAL CORP (PNW)

8-K 2022-05-04 For: 2022-05-04
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Added on April 08, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

| Date of report (Date of earliest event reported): | May 4, 2022 | | --- | --- || Commission File<br>Number | Exact Name of Each Registrant as specified in its<br>charter; State of Incorporation; Address; and<br>Telephone Number | | | IRS Employer<br>Identification No. | | --- | --- | --- | --- | --- | | 1-8962 | PINNACLE WEST CAPITAL CORPORATION | | | 86-0512431 | | | (an Arizona corporation) | | | | | | 400 North Fifth Street, P.O. Box 53999 | | | | | | Phoenix | Arizona | 85072-3999 | | | | (602) | 250-1000 | | | | 1-4473 | ARIZONA PUBLIC SERVICE COMPANY | | | 86-0011170 | | | (an Arizona corporation) | | | | | | 400 North Fifth Street, P.O. Box 53999 | | | | | | Phoenix | Arizona | 85072-3999 | | | | (602) | 250-1000 | | |

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered
Common Stock PNW The New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

This combined Form 8-K is separately filed or furnished by Pinnacle West Capital Corporation and Arizona Public Service Company. Each registrant is filing or furnishing on its own behalf all of the information contained in this Form 8-K that relates to such registrant and, where required, its subsidiaries. Except as stated in the preceding sentence, neither registrant is filing or furnishing any information that does not relate to such registrant, and therefore makes no representation as to any such information.

Item 2.02. Results of Operations and Financial Condition.

The following information is furnished pursuant to Item 2.02.

On May 4, 2022, Pinnacle West Capital Corporation (“Pinnacle West”) issued a press release regarding its financial results for the fiscal quarter ended March 31, 2022. A copy of the press release is attached hereto as Exhibit 99.1.

Item 7.01. Regulation FD Disclosure.

The following information is furnished pursuant to Item 7.01.

Pinnacle West is providing a copy of the slide presentation made in connection with the quarterly earnings conference call on May 4, 2022. This information contains Pinnacle West operating results for the fiscal quarter ended March 31, 2022, earnings outlook for 2022 and a quarterly consolidated statistical summary. The slide presentation is attached hereto as Exhibit 99.2 and is concurrently being posted to Pinnacle West’s website at www.pinnaclewest.com.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits

Exhibit No. Registrant(s) Description
99.1 Pinnacle West<br>Arizona Public Service Company Earnings News Release issued on May 4, 2022
99.2 Pinnacle West<br>Arizona Public Service Company Pinnacle West Capital Corporation First Quarter 2022 Results slide presentation accompanying May 4, 2022 conference call

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

PINNACLE WEST CAPITAL CORPORATION
(Registrant)
Dated: May 4, 2022 By: /s/ Theodore N. Geisler
Theodore N. Geisler
Senior Vice President and
Chief Financial Officer
ARIZONA PUBLIC SERVICE COMPANY
(Registrant)
Dated: May 4, 2022 By: /s/ Theodore N. Geisler
Theodore N. Geisler
Senior Vice President and
Chief Financial Officer

Document

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FOR IMMEDIATE RELEASE May 4, 2022
Media Contact:<br>Analyst Contact: Alan Bunnell (602) 250-3376<br>Amanda Ho (602) 250-3334
Website: pinnaclewest.com

PINNACLE WEST REPORTS 2022 FIRST-QUARTER RESULTS

•Lower quarterly results in line with company’s expectations following “financial reset” from recent rate case decision

•Robust sales and customer growth underscore Arizona’s economic strength

•APS employees focus on summer preparedness and reliability using advanced robotic technology

PHOENIX – Pinnacle West Capital Corp. (NYSE: PNW) today reported consolidated net income attributable to common shareholders of $17.0 million, or $0.15 per diluted share of common stock, for the quarter ended March 31, 2022. This result compares with $35.6 million, or $0.32 per diluted share, for the same period in 2021.

The lower first-quarter results reflect the adverse outcome of the company’s recent general rate case. Implemented on Dec. 1, 2021, the unfavorable rate case decision was the primary driver for the lower quarter-over-quarter results. The largest contributing factor was discontinuation of the Four Corners and Ocotillo cost deferrals. Other major factors negatively affecting the 2022 first-quarter results were higher depreciation and amortization expense due to increased plant assets and higher income taxes. These negative effects were partially offset by higher customer usage and customer growth, increased transmission revenue and lower operations and maintenance expense.

“Despite the impact the rate decision had on our first-quarter revenue, 2022 has started off in line with our expectations during what we’ve previously expressed as a ‘financial reset year,’ ” said Pinnacle West Chairman, President and Chief Executive Officer Jeff Guldner. “Our employees contributed to strong operational performance, and we continue to serve one of the fastest-growing service territories in the nation. Our quarterly customer growth was a robust 2.2%, and we experienced stronger-than-projected sales growth of 4.4%.”

“Though this growth is positive, it still does not make up for the negative impacts of the rate case outcome,” Guldner stated. “In fact, the tremendous growth we are experiencing accentuates the need for substantial capital investment in order to maintain the reliability and safety of our system, and it emphasizes the need for reasonable and timely recovery of those investments.”

Employees prepare for summer reliability

Guldner said as more families and companies choose Arizona to live and do business, “our employees are laser-focused on the critical preparations necessary to continue delivering

reliable power throughout our peak summer season – especially as energy supplies tighten in the western region.”

In addition to building new infrastructure to meet growth, maintaining new infrastructure to ensure reliability, and procuring additional energy to meet summer demand, APS employees are nearing completion of a scheduled maintenance and refueling outage at Palo Verde Generation Station Unit 1. As the largest source of carbon-free energy in the U.S., the three-unit nuclear plant is critical to meeting summer demand across the desert southwest.

APS employees also are conducting fire-mitigation line patrols and emergency operations drills; managing supply-chain constraints to acquire critical spare equipment; and performing preventative maintenance – all part of the company’s longstanding seasonal preparation activities.

Advanced technology keeps employees safe while ensuring customer reliability

As part of its proactive system upkeep, the company’s Predictive Maintenance (PDM) inspection team uses advanced technology to conduct safe and efficient facility assessments. With infrared cameras, three active drones and two robots, the company can perform safer inspections of hard-to-reach and dangerous areas such as transmission towers, power lines and manholes.

The latest addition to the PDM team is a Boston Dynamics-built robot named Spot the Dog. APS employees can remotely operate Spot to examine confined spaces, conduct night inspections and perform security work using a built-in infrared camera – all without an employee having to step foot in an unsafe or restricted area.

“APS has always been dedicated to technology and innovation, and Spot the Dog is just the next evolution in our reliability journey,” said Guldner. “This robot and other high-tech tools help our employees stay safe, while also improving efficiency and system reliability for our customers.”

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The company’s focus on technology also is allowing it to deliver a superior customer experience. Enhancements to the APS website, interactive outage map, and alerts by text and email have enhanced customers’ digital experience, grown transaction engagement and improved overall customer satisfaction.

Financial Outlook

For 2022, the company continues to expect its consolidated earnings guidance will be in the range of $3.90 to $4.10 per diluted share on a weather-normalized basis. Key factors and assumptions underlying the 2022 outlook can be found in the first-quarter 2022 earnings presentation slides at pinnaclewest.com/investors.

Conference Call and Webcast

Pinnacle West invites interested parties to listen to the live webcast of management’s conference call to discuss the company’s 2022 first-quarter results, as well as recent developments, at noon ET (9 a.m. Arizona time) today, May 4. Join the live webcast at www.pinnaclewest.com/presentations for audio of the call and slides, or dial (888) 506-0062 or (973) 528-0011 for international callers and enter participant access code 560292. A replay of the webcast can be accessed for 30 days at pinnaclewest.com/presentations. A replay of the call also will be available until 11:59 p.m. ET, Wednesday, May 11, 2022, by calling (877) 481-4010 in the U.S. and Canada or (919) 882-2331 internationally and entering replay passcode 45138.

General Information

Pinnacle West Capital Corp., an energy holding company based in Phoenix, has consolidated assets of approximately $22 billion, about 6,300 megawatts of generating capacity and nearly 5,900 employees in Arizona and New Mexico. Through its principal subsidiary, Arizona Public Service, the company provides retail electricity service to more than 1.3 million Arizona homes and businesses. For more information about Pinnacle West, visit the company’s website at pinnaclewest.com.

Dollar amounts in this news release are after income taxes. Earnings per share amounts are based on average diluted common shares outstanding. For more information on Pinnacle West’s operating statistics and earnings, please visit pinnaclewest.com/investors.

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements based on current expectations. These forward-looking statements are often identified by words such as "estimate," "predict," "may," "believe," "plan," "expect," "require," "intend," "assume," "project," "anticipate," "goal," "seek," "strategy," "likely," "should," "will," "could," and similar words. Because actual results may differ materially from expectations, we caution readers not to place undue reliance on these statements. Several factors could cause future results to differ materially from historical results, or from outcomes currently expected or sought by Pinnacle West or APS. These factors include, but are not limited to:

•the potential effects of the continued COVID-19 pandemic, including, but not limited to, demand for energy, economic growth, our employees and contractors, vaccine mandates, supply chain, expenses, inflation, capital markets, capital projects, operations and maintenance activities, uncollectable accounts, liquidity, cash flows or other unpredictable events;

•our ability to manage capital expenditures and operations and maintenance costs while maintaining reliability and customer service levels;

•variations in demand for electricity, including those due to weather, seasonality (including large increases in ambient temperatures), the general economy or social conditions, customers and sales growth (or decline), the effects of energy conservation measures and distributed generation, and technological advancements;

•the potential effects of climate change on our electric system, including as a result of weather extremes such as prolonged drought and high temperature variations in the area where APS conducts its business;

•power plant and transmission system performance and outages;

•competition in retail and wholesale power markets;

•regulatory and judicial decisions, developments and proceedings;

•new legislation, ballot initiatives and regulation or interpretations of existing legislation or regulations, including those relating to environmental requirements, regulatory and energy policy, nuclear plant operations and potential deregulation of retail electric markets;

•fuel and water supply availability;

•our ability to achieve timely and adequate rate recovery of our costs through our rates and adjustor recovery mechanisms, including returns on and of debt and equity capital investment;

•our ability to meet renewable energy and energy efficiency mandates and recover related costs;

•the ability of APS to achieve its clean energy goals (including a goal by 2050 of 100% clean, carbon-free electricity) and, if these goals are achieved, the impact of such achievement on APS, its customers, and its business, financial condition and results of operations;

•risks inherent in the operation of nuclear facilities, including spent fuel disposal uncertainty;

•current and future economic conditions in Arizona, including in real estate markets;

•the direct or indirect effect on our facilities or business from cybersecurity threats or intrusions, data security breaches, terrorist attack, war, acts of war, international sanctions, physical attack, severe storms, or other catastrophic events, such as fires, explosions, pandemic health events, or similar occurrences;

•the development of new technologies which may affect electric sales or delivery;

•the cost of debt and equity capital and the ability to access capital markets when required;

•general economic conditions, including inflation rates, monetary fluctuations, and supply chain constraints;

•environmental, economic and other concerns surrounding coal-fired generation, including regulation of greenhouse gas emissions;

•volatile fuel and purchased power costs;

•the investment performance of the assets of our nuclear decommissioning trust, pension, and other postretirement benefit plans and the resulting impact on future funding requirements;

•the liquidity of wholesale power markets and the use of derivative contracts in our business;

•potential shortfalls in insurance coverage;

•new accounting requirements or new interpretations of existing requirements;

•generation, transmission and distribution facility and system conditions and operating costs;

•the ability to meet the anticipated future need for additional generation and associated transmission facilities in our region;

•the willingness or ability of our counterparties, power plant participants and power plant landowners to meet contractual or other obligations or extend the rights for continued power plant operations; and

•restrictions on dividends or other provisions in our credit agreements and Arizona Corporation Commission orders.

These and other factors are discussed in Risk Factors described in Part 1, Item 1A of the Pinnacle West/APS Annual Report on Form 10-K for the fiscal year ended Dec. 31, 2021, and in Part II, Item 1A in of the Pinnacle West/APS Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, which readers should review carefully before placing any reliance on our financial statements or disclosures. Neither Pinnacle West nor APS assumes any obligation to update these statements, even if our internal estimates change, except as required by law.

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PINNACLE WEST CAPITAL CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

(unaudited)

(dollars and shares in thousands, except per share amounts)

THREE MONTHS ENDED
MARCH 31,
2022 2021
Operating Revenues $ 783,531 $ 696,475
Operating Expenses
Fuel and purchased power 265,269 198,227
Operations and maintenance 218,342 230,055
Depreciation and amortization 186,605 157,820
Taxes other than income taxes 57,998 59,483
Other expenses 825 3,356
Total 729,039 648,941
Operating Income 54,492 47,534
Other Income (Deductions)
Allowance for equity funds used during construction 9,747 9,207
Pension and other postretirement non-service credits - net 23,809 27,791
Other income 1,704 12,429
Other expense (3,422) (3,853)
Total 31,838 45,574
Interest Expense
Interest charges 65,389 61,938
Allowance for borrowed funds used during construction (4,482) (4,994)
Total 60,907 56,944
Income Before Income Taxes 25,423 36,164
Income Taxes 4,161 (4,350)
Net Income 21,262 40,514
Less: Net income attributable to noncontrolling interests 4,306 4,873
Net Income Attributable To Common Shareholders $ 16,956 $ 35,641
Weighted-Average Common Shares Outstanding - Basic 113,102 112,829
Weighted-Average Common Shares Outstanding - Diluted 113,295 113,093
Earnings Per Weighted-Average Common Share Outstanding
Net income attributable to common shareholders - basic $ 0.15 $ 0.32
Net income attributable to common shareholders - diluted $ 0.15 $ 0.32

a1q_2022xearningsxdeckxf

POWERING GROWTH DELIVERING VALUE First Quarter 2022 Results May 4, 2022 1


Forward Looking Statements 2 This presentation contains forward-looking statements based on current expectations, including statements regarding our earnings guidance and financial outlook and goals. These forward-looking statements are often identified by words such as “estimate,” “predict,” “may,” “believe,” “plan,” “expect,” “require,” “intend,” “assume,” “project,” "anticipate," "goal," "seek," "strategy," "likely," "should," "will," "could," and similar words. Because actual results may differ materially from expectations, we caution you not to place undue reliance on these statements. A number of factors could cause future results to differ materially from historical results, or from outcomes currently expected or sought by Pinnacle West or APS. These factors include, but are not limited to: the potential effects of the continued COVID-19 pandemic, including, but not limited to, demand for energy, economic growth, our employees and contractors, vaccine mandates, supply chain, expenses, inflation, capital markets, capital projects, operations and maintenance activities, uncollectable accounts, liquidity, cash flows, or other unpredictable events; our ability to manage capital expenditures and operations and maintenance costs while maintaining reliability and customer service levels; variations in demand for electricity, including those due to weather, seasonality (including large increases in ambient temperatures), the general economy or social conditions, customer and sales growth (or decline), the effects of energy conservation measures and distributed generation, and technological advancements; the potential effects of climate change on our electric system, including as a result of weather extremes such as prolonged drought and high temperature variations in the area where APS conducts its business; power plant and transmission system performance and outages; competition in retail and wholesale power markets; regulatory and judicial decisions, developments and proceedings; new legislation, ballot initiatives and regulation or interpretations of existing legislation or regulations, including those relating to environmental requirements, regulatory and energy policy, nuclear plant operations and potential deregulation of retail electric markets; fuel and water supply availability; our ability to achieve timely and adequate rate recovery of our costs through our rates and adjustor recovery mechanisms, including returns on and of debt and equity capital investments; our ability to meet renewable energy and energy efficiency mandates and recover related costs; the ability of APS to achieve its clean energy goals (including a goal by 2050 of 100% clean, carbon-free electricity) and, if these goals are achieved, the impact of such achievement on APS, its customers, and its business, financial condition and results of operations; risks inherent in the operation of nuclear facilities, including spent fuel disposal uncertainty; current and future economic conditions in Arizona, including in real estate markets; the direct or indirect effect on our facilities or business from cybersecurity threats or intrusions, data security breaches, war, acts of war, international sanctions, terrorist attack, physical attack, severe storms, or other catastrophic events, such as fires, explosions, pandemic health events, or similar occurrences; the development of new technologies which may affect electric sales or delivery; the cost of debt and equity capital and the ability to access capital markets when required; general economic conditions, including inflation rates, monetary fluctuations and supply chain constraints; environmental, economic and other concerns surrounding coal-fired generation, including regulation of greenhouse gas emissions; volatile fuel and purchased power costs; the investment performance of the assets of our nuclear decommissioning trust, pension, and other postretirement benefit plans and the resulting impact on future funding requirements; the liquidity of wholesale power markets and the use of derivative contracts in our business; potential shortfalls in insurance coverage; new accounting requirements or new interpretations of existing requirements; generation, transmission and distribution facility and system conditions and operating costs; the ability to meet the anticipated future need for additional generation and associated transmission facilities in our region; the willingness or ability of our counterparties, power plant participants and power plant land-owners to meet contractual or other obligations or extend the rights for continued power plant operations; and restrictions on dividends or other provisions in our credit agreements and ACC orders. These and other factors are discussed in Risk Factors described in Part I, Item 1A of the Pinnacle West/APS Annual Report on Form 10-K for the fiscal year ended December 31, 2021 and in Part II, Item 1A of the Pinnacle West/APS Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, which you should review carefully before placing any reliance on our financial statements, disclosures or earnings outlook. Neither Pinnacle West nor APS assumes any obligation to update these statements, even if our internal estimates change, except as required by law. In this presentation, references to net income and earnings per share (EPS) refer to amounts attributable to common shareholders. First Quarter 2022


1st Quarter results negatively impacted by rate case despite higher usage 3 1st Quarter 2022 vs. 1st Quarter 2021 1Q 2021 1Q 2022 $0.32 $0.15 Operating Revenue less Fuel and Purchased Power1 $0.13 O&M1 & 2 $0.08 D&A2 $(0.19) Operating Revenue less Fuel and Purchased Power Federal Tax Reform3 Sales/Usage Transmission Weather Other LFCR GRC Base Rate Impact $ $ $ $ $ $ $ 0.21 0.09 0.08 (0.01) (0.02) (0.07) (0.15) Pension & OPEB Non- service Credits, net $(0.03) Other, net2 $(0.06) 1 Includes costs and offsetting operating revenues associated with renewable energy and demand side management programs, see slide 19 for more information. 2 Includes the impacts from the absence of the Four Corners Selective Catalytic Reduction (SCR) equipment and Ocotillo Modernization Project (OMP) deferrals. 3 TEAM adjuster was transferred into Base Rates upon the conclusion of APS’s most recent rate case. 4 The Q1 2022 effective tax rate is impacted by a change in the timing of recognition for excess deferred taxes related to the 2017 Tax Cuts and Jobs Act. This timing difference is expected to resolve by year end. end First Quarter 2022 Effective Tax Rate4 $(0.10)


Key drivers for EPS guidance1 1 • Retail customer growth 1.5%-2.5% • Weather-normalized retail electricity sales growth of 1.5%-2.5% • Transmission revenues • Operations and maintenance savings • Depreciation and amortization First Quarter 20224 2022 key drivers • 2022 EPS guidance $3.90-$4.10 • Long-term EPS growth target of 5-7%2 • Retail customer growth 1.5%-2.5%3 • Weather-normalized retail electricity sales growth of 3.5-4.5%3 1 As of May 4, 2022. Long-term guidance and key drivers • Property Tax • Interest on new debt • AFUDC • Pension and OPEB 2 Long-term EPS growth rate based on the Company’s current 5-year compound annual growth rate projections from 2022-2026 3 Forecasted guidance range from 2022-2024


$170 $175 $185 $190 $595 $510 $530 $500 $263 $250 $210 $210 $260 $340 $330 $560 $214 $250 $270 $190 2021 2022E 2023E 2024E Other Generation Clean Generation Transmission Distribution Other Total 2022-2024 $4.7B $1.50B $1.53B $1.53B $1.65B 5 Managed capital plan to support customer growth, reliability, and clean transition 2022–2024 as disclosed in the First Quarter 2022 Form 10-Q. First Quarter 2022


Total Approved Rate BaseAPS Rate Base Growth Guidance Year-End Steady rate base growth First Quarter 20226 ACC FERC Rate Effective Date 12/01/2021 6/1/2021 Test Year Ended 06/30/20191 12/31/2020 Rate Base $8.6B $1.8B Equity Layer 54.7% 51.6% Allowed ROE 8.7% 10.75% 1 Adjusted to include post test-year plant in service through 06/30/2020 Rate base $ in billions, rounded $9.1 $11.2 $1.8 $2.4 2020 2021 2022 2023 2024 Projected 5-6% Annual FERC ACC $10.9 $13.6


Our goal is flat total O&M and declining O&M per MWh 7 2021 2022 2023 2024 $29/MWh O&M per MWh Total O&M1 2021: $865M 2022: $820M-$840M 1 Total O&M amounts exclude RES/DSM, and include planned outage amounts of $54M in 2021 and $40M-$50M in 2022. First Quarter 2022


Forecasted sources of capital to fund investments through 2024 No plans to issue equity before end of next rate case 8 Approx. $3 billion Approx. $1 billion $4.7 billion APS Debt2 PNW Debt2 Cash from Operations1 $200-$300 million $400-$500 million 1 Cash from operations is net of shareholder dividends. 2 APS and PNW debt issuance is net of maturities. First Quarter 2022 Total Capital Investment PNW Equity/ Alternatives


Strong balance sheet with attractive long-term debt maturity profile1 9 $M PNW Long-Term DebtAPS Long-Term Debt $0 $200 $400 $600 $800 $1,000 $1,200 2022 2024 2026 2028 2030 2032 2034 2036 2038 2040 2042 2044 2046 2048 2050 As of March 31, 2022 First Quarter 2022 1 Does not include debt at Bright Canyon Energy.


We continue to make progress towards key deliverables First Quarter 202210 ➢ File appeal of last rate case ✓ Filed notice of appeal on December 17 ✓ Filed opening brief on April 27 ➢ Make progress on financing plan ✓ Deferring equity issuance until after next rate case ➢ File new rate case to recover grid investments and reduce regulatory lag ➢ Work with stakeholders on common issues ✓ Received approval of Customer Education and Outreach Plan ➢ Flat total O&M and declining O&M per MWh ➢ Continued progress towards Clean Energy Commitment ➢ Continued support in attracting high tech growth and economic development


APPENDIX


2022 EPS guidance First Quarter 202212 Key Factors and Assumptions as of February 25, 2022 2022 Adjusted gross margin (operating revenues, net of fuel and purchased power expenses, x/RES,DSM,CCT) $2.52 – $2.55 billion • Retail customer growth about 1.5-2.5% • Weather-normalized retail electricity sales volume 1.5-2.5% higher compared to prior year o Includes 0.5-1.5% contribution to sales growth of new large manufacturing facilities and several large data centers • Assumes normal weather for full-year forecast Adjusted operating and maintenance (O&M x/RES,DSM,CCT) $820 – $840 million Other operating expenses (depreciation and amortization, and taxes other than income taxes) $987 – $998 million Other income (pension and other post-retirement non-service credits, other income and other expense) $62 – $66 million Interest expense, net of allowance for borrowed and equity funds used during construction (Total AFUDC ~$64 million) $214 – $232 million Net income attributable to noncontrolling interests $17 million Effective tax rate 13.5% Average diluted common shares outstanding 113.5 million EPS Guidance $3.90 – $4.10


Arizona remains among the fastest growing states in the U.S. 13 Annual Employment Growth Last Three Years1 Steady Housing Growth2 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 Single Family & Multifamily Housing Permits Maricopa County 8,425 43,378 2 Maricopa County population 4.5M, 62% of state population1 2019-2021 National Arizona (1)% 1% 18% CAGR First Quarter 2022


Best-in-class service territory supports high tech growth and economic development 14 Our Approach: Focus on Four Main Areas Supports Influx of Manufacturing and Data Centers – Examples • Business attraction and expansion • Community development • Entrepreneurial support • Infrastructure support • Taiwan Semiconductor Began building $12B factory • Chang Chun Petrochemical Building 250k sq ft facility • Williams-Sonoma Leased 1.2M sq ft facility • Nestle USA Building 625k sq ft facility • KORE Power Building 1M sq facility • Kohler Co. Building 1M sq ft facility Data centers are projected to create up to 640 MW of capacity needs by 2035 First Quarter 2022


A clear plan for clean energy transition 15 Progress Towards Meeting Clean Energy Commitment1 Pathway 2005 2019 2030 2050 Announced seasonal operations of Four Corners beginning 2023 Contracted for nearly 1600 MW of clean energy and storage to be in service for APS customers by end of 2024 Charted course for healthy mix of APS-owned and third party- owned assets, to be continued through future planned RFPs 24% 50% 65% 100% 1 Since January 2020 First Quarter 2022


Clean Energy Commitment – ~1,600MW in development since 2020 First Quarter 202216 Robust, Diverse Procurement Activity Energy Storage • 201 MW APS-owned resources to retrofit entire fleet of AZ Sun facilities • 300 MW under two long-term PPAs • All resources to be in service between 2022 and 2024 Solar • 150 MW owned by APS and sited near Redhawk generating facility • 160 MW under two long-term PPAs • All resources to be in service in 2023 Solar + Storage • 275 MW under single long-term innovative tolling PPA • Resources to be in service in 2023 and 2024 Wind • 438 MW under two long-term PPAs • Resources to be in service by 2023 Demand Response • 75 MW under 5-year load management agreement; service began in 2021 • APS can call up to 18 load reduction events between June and September annually


2022 Planned Outage schedule First Quarter 202217 Coal, Nuclear and Large Gas Planned Outages Q1 Q2 Q4 Plant Unit Estimated Duration in Days Plant Unit Estimated Duration in Days Plant Unit Estimated Duration in Days N/A N/A N/A Palo Verde 1 30 Palo Verde 3 30


$1 Q1 Q2 Q3 Q4 Gross margin effects of weather First Quarter 202218 Variances vs. Normal$ in millions pretax 2022 $1 Million All periods recalculated to current 10-year rolling average (2011 – 2020). Numbers may not foot due to rounding.


Renewable Energy & Demand Side Management expenses1 First Quarter 202219 $7 $6 $10 $13 $10 $11 $12 $18 $13 $13 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Demand Side Management Renewable Energy 2021 $89 Million 1 Renewable energy and demand side management expenses are offset by adjustment mechanisms. 2022 $23 Million Numbers may not foot due to rounding.


Residential PV applications1 First Quarter 202220 1Monthly data equals applications received minus cancelled applications. As of March 31, 2022 approximately 140,433 residential grid-tied solar photovoltaic (PV) systems have been installed in APS’s service territory, totaling approximately 1,191 MWdc of installed capacity. Excludes APS Solar Partner Program residential PV systems. Note: www.arizonagoessolar.org logs total residential application volume, including cancellations. Solar water heaters can also be found on the site but are not included in the chart above Residential DG (MWdc) Annual Additions 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2019 Applications 2020 Applications 2021 Applications 2022 Applications 122 139 169 52 2019 2020 2021 2022


Our credit ratings support growth opportunities 21 Corporate Ratings Senior Unsecured Ratings Short-Term Ratings Outlook APS1 Moody’s A3 A3 P-2 Negative S&P BBB+ BBB+ A-2 Negative Fitch BBB+ A- F2 Negative Pinnacle West1 Moody’s Baa1 Baa1 P-2 Negative S&P BBB+ BBB A-2 Negative Fitch BBB+ BBB+ F2 Negative Balance Sheet Targets • Strong investment grade credit ratings • APS equity layer >50% • FFO/Debt range of 16%-18% 1 We are disclosing credit ratings to enhance understanding of our sources of liquidity and the effects of our ratings on our costs of funds. Ratings are as of May 4, 2022. First Quarter 2022


Regulatory 2022 key dates First Quarter 202222 ACC Key Dates / Docket # Q1 Q2 Q3 Q4 Power Supply Adjustor (PSA): E-01345A-19-0236 Effective Feb 1 Lost Fixed Cost Recovery: E-01345A-22-0042 Filed Feb 15 Transmission Cost Adjustor: E-01345A-19-0236 To Be Filed: May 15; Effective Jun 1 2022 DSM/EE Implementation Plan: E-01345A-21-0087 2022 RES Implementation Plan: E-01345A-21-0240 2019 Rate Case: E-01345A-19-0236 Petition for Special Action Denied; Court of Appeals in process New TOU Hours to be implemented: Sept 1 Resource Planning and Procurement: E-00000V-19-0034 IRP Acknowledged on February 10 Resource Comparison Proxy (RCP): E-01345A-22-0105 Filed April 29 Rulemaking Requiring All-Source RFPs: RE-00000A-22-0029 Proposed Termination of Service Rule Modifications: RU-00000A-19-0132 Effective Apr 18 Fuel and Purchased Power Audit: E-01345A-21-0056 Staff Report Apr 1


Consolidated statistics1 First Quarter 202223 3 Months Ended June 30 Numbers may not foot due to rounding. 3 Months Ended June 30 2022 2021 Incr (Decr) TOTAL OPERATING REVENUES (Dollars in Millions) Retail Residential 367$ 341$ 27 Business 360 315 45 Total Retail 727 656 71 Sales for Resale (Wholesale) 29 18 11 Transmission for Others 26 19 6 Other Miscellaneous Services 2 4 (2) Total Operating Revenues 784$ 696$ 87 ELECTRIC SALES (GWH) Retail Residential 2,649 2,581 68 Business 3,304 3,143 161 Total Retail 5,954 5,725 229 Sales for Resale (Wholesale) 686 634 52 Total Electric Sales 6,640 6,359 281 3 Months Ended March 31, 2022 2021 Incr (Decr) RETAIL SALES (GWH) - WEATHER NORMALIZED Residential 2,643 2,553 90 Business 3,315 3,154 161 Total Retail Sales 5,958 5,707 251 Retail sales (GWH) (% over prior year) 4.4% 0.2% 4.2% AVERAGE ELECTRIC CUSTOMERS Retail Customers Residential 1,197,775 1,170,332 27,443 Business 140,830 139,500 1,330 Total Retail 1,338,604 1,309,832 28,773 Wholesale Customers 53 40 14 Total Customers 1,338,658 1,309,871 28,786 Total Customer Growth (% over prior year) 2.2% 2.1% 0.1% RETAIL USAGE - WEATHER NORMALIZED (KWh/Average Customer) Residential 2,207 2,182 25 Business 23,537 22,608 929 3 Months Ended March 31, 1 Retail electricity sales in kWh, adjusted to exclude the effects of weather variations, for the year ended December 31, 2021 compared with the prior-year period increased 4.2%, which reflects a correction to 2020 commercial and industrial customer sales volumes of 111 GWh.


Consolidated statistics First Quarter 202224 Numbers may not foot due to rounding. 3 Months Ended June 30 2022 2021 Incr (Decr) WEATHER INDICATORS - RESIDENTIAL Actual Cooling Degree-Days - - - Heating Degree-Days 451 506 (55) Average Humidity 0% 0% 0% 10-Year Averages (2011 - 2020) Cooling Degree-Days - - - Heating Degree-Days 443 443 Average Humidity 0% 0% - 3 Months Ended March 31, 2022 2021 Incr (Decr) ENERGY SOURCES (GWH) Generation Production Nuclear 2,397 2,459 (62) Coal 1,830 1,334 496 Gas, Oil and Other 1,539 1,927 (388) Renewables 116 137 (21) Total Generation Production 5,882 5,857 25 Purchased Power - Conventional 509 364 146 Resales 4 5 (1) Renewables 634 541 93 Total Purchased Power 1,147 909 238 Total Energy Sources 7,030 6,766 263 POWER PLANT PERFORMANCE Capacity Factors - Owned Nuclear 97% 99% (3)% Coal 62% 46% 17% Gas, Oil and Other 20% 25% (5)% Solar 24% 28% (4)% System Average 43% 43% 0% 3 Months Ended March 31,