Pinnacle West Capital Corporation · NYSE:PNW

Pinnacle West Capital — Q1 2023 Earnings Presentation

30 slides from Pinnacle West Capital's earnings presentation, May 4, 2023

  1. Slide 1: Powering Growth, Delivering Value: First Quarter 2023 Results

    POWERING GROWTH DELIVERING VALUE First Quarter 2023 Results May 4, 2023 1

  2. Slide 2: Forward Looking Statements

    Forward Looking Statements 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,” “

  3. Slide 3: 1st Quarter higher expenses partially offset by weather and sales

    1st Quarter higher expenses partially offset by weather and sales 1st Quarter 2023 vs. 1st Quarter 2022 Pension & OPEB Non- D&A service $(0.04) Credits, net Operating O&M1 $(0.09) Revenue $(0.21) Interest, net $0.15 less Fuel AFUDC and $(0.05) Purchased All other2 Power1 $(0.01) 1Q 2022 Operating Re

  4. Slide 4: 2023 EPS guidance

    2023 EPS guidance Key Factors and Assumptions as of May 4, 2023 2023 Adjusted gross margin (operating revenues, net of fuel and $2.67 – $2.72 billion purchased power expenses, x/RES,DSM,CCT)1 • Retail customer growth 1.5%-2.5% • Weather-normalized retail electricity sales growth of 3.5%-5.5% • Inclu

  5. Slide 5: Key drivers for EPS guidance

    Key drivers for EPS guidance1 1 2023 EPS guidance of $3.95-$4.15 key drivers1,2  Retail customer growth 1.5%-2.5%  Normal Weather  Weather-normalized retail electricity  Depreciation, amortization and property taxes sales growth of 3.5%-5.5% due to higher plant in service  Transmission revenues

  6. Slide 6: Managed capital plan to support customer growth, reliability, and clean transition

    Managed capital plan to support customer growth, reliability, and clean transition $1.80B $1.85B $1.67B $245 $245 $1.53B $265 $226 $465 $520 Other Generation $360 $345 Clean Generation $260 $300 $300 $217 Transmission $520 $530 $530 Distribution $577 Other $167 $265 $260 $255 2022 2023E 2024E 2025E

  7. Slide 7: Steady rate base growth

    Steady rate base growth APS Rate Base Growth Guidance Total Approved Rate Base Year-End 5-7% ACC FERC Annual $15.2 $2.7 Rate Effective 12/01/2021 6/1/2022 $11.7 FERC Date $1.9 Test Year 06/30/20191 12/31/2021 Ended $12.5 Rate Base $8.6B $1.9B ACC $9.8 Equity Layer 54.7% 51.3% Allowed ROE 8.7% 10.75%

  8. Slide 8: Our goal continues to be declining O&M (as adjusted) per MWh

    Our goal continues to be declining O&M (as adjusted) per MWh O&M (as adjusted) per MWh $29.60/MWh Total O&M (as adjusted)1 2022: $892M 2023: $885M-$905M 2022 1 O&M amounts, as adjusted, exclude RES/DSM amounts of $95M in 2022 and $110M-$120M in 2023. Planned outage amounts included in O&M are $43M i

  9. Slide 9: No plans to issue equity before end of next rate case

    No plans to issue equity before end of next rate case Forecasted sources of capital to fund investments from 2022-2024 Approx. $400-$500 Approx. $300 million $5.0 billion $1.25 million billion PNW Equity/ PNW Debt2 Alternatives Approx. $3 billion APS Debt2 Cash from Total Capital Operations1 Investm

  10. Slide 10: Strong balance sheet with attractive long-term debt maturity profile

    Strong balance sheet with attractive long-term debt maturity profile1 $M APS Long-Term Debt PNW Long-Term Debt $1,200 $1,000 $800 $600 $400 $200 $0 2022 2024 2026 2028 2030 2032 2034 2036 2038 2040 2042 2044 2046 2048 2050 As of March 31, 2023 1 Does not include debt at Bright Canyon Energy. 10 Firs

  11. Slide 11: Appendix

    PINNACLE WEST APPENDIX

  12. Slide 12: Arizona remains among the fastest growing states in the U.S.

    Arizona remains among the fastest growing states in the U.S. Consistent Residential Growth Past Five Years Strong 2.5% Sales CAGR Past Three Years Residential Customer Growth1 Total Sales Growth2,3 3% 6% APS Residential Growth Natn'l Avg. - Residential 5% 1.5%-2.5% 2.4% 2.3% 3.5%-5.5% 2.2% 4% 4.2% 2

  13. Slide 13: Best-in-class service territory supports high tech growth and economic development

    Best-in-class service territory supports high tech growth and economic development Our Approach: Supports Influx of Manufacturing Focus on Four Main Areas and Distribution – Examples • Taiwan • Rehrig Pacific • Business attraction and expansion Semiconductor Company Increased investment from $80M in

  14. Slide 14: A clear plan for clean energy transition

    A clear plan for clean energy transition Progress Towards Meeting Clean Energy Commitment Since 2020, have contracted over 2,300 MW of clean energy and storage to be in service for APS customers by end of 2025 Successfully installed 141 MWs of APS owned batteries at our AZ Sun sites as of April 2023

  15. Slide 15: Clean Energy Commitment – ~2,300MW in development since 2020

    Clean Energy Commitment – ~2,300MW in development since 2020 Robust, Diverse Procurement Activity Energy Storage • 201 MW APS-owned resources to retrofit entire fleet of AZ Sun facilities − 141 MWs in service as of April 2023 • 300 MW under two long-term PPAs • All resources to be in service between

  16. Slide 16: 2023 Planned Outage schedule

    2023 Planned Outage schedule Coal, Nuclear and Large Gas Planned Outages Q2 Q4 Plant Unit Estimated Duration in Days Plant Unit Estimated Duration in Days Palo Verde 2 35 Palo Verde 1 35 Redhawk CC1 56 16 First Quarter 2023

  17. Slide 17: Gross margin effects of weather

    Gross margin effects of weather $ in millions pretax Variances vs. Normal $15 Q1 Q2 Q3 Q4 2023 $15 Million All periods recalculated to current 10-year rolling average (2012 – 2021). Numbers may not foot due to rounding. 17 First Quarter 2023

  18. Slide 18: Renewable Energy & Demand Side Management expenses

    Renewable Energy & Demand Side Management expenses1 Demand Side Management Renewable Energy $18 $18 $13 $11 $16 $15 $12 $11 $10 $4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 2022 2023 $95 Million $33 Million 1Renewable energy and demand side management expenses are substantially offset by adjustment mechanisms. 18 Fir

  19. Slide 19: Residential PV applications

    Residential PV applications1 Residential DG (MWdc) Annual Additions 201 5,000 169 139 71 4,500 2020 2021 2022 2023 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2020 Applications 2021 Applications 2022 Applications 2023 Applications 1Monthly data equ

  20. Slide 20: Credit Ratings Summary

    Credit Ratings Summary Senior Corporate Unsecured Short-Term Ratings Ratings Ratings Outlook APS1 Balance Sheet Targets Moody’s A3 A3 P-2 Negative • Strong investment grade credit ratings S&P BBB+ BBB+ A-2 Negative • APS equity layer >50% Fitch BBB+ A- F2 Negative • FFO/Debt range of Pinnacle West1

  21. Slide 21: 2022 APS Rate Case Application

    2022 APS Rate Case Application 1 Overview of Rate Increase Request ($ in Millions) Key Components1 Rate Base Growth $130 12 Months Post Test Year Plant 140 Weighted Average Cost of Capital of 7.17% 78 1% Fair Value Increment 78 New Customer Programs, Coal Community 34 Transition and Other Total Reve

  22. Slide 22: 2022 APS Rate Case Application

    2022 APS Rate Case Application 1 Adjustment Mechanisms Overview • Eliminate the Environmental Improvement Surcharge and collect costs through base rates • Eliminate the Lost Fixed Cost Recovery Mechanism and collect costs through base rates and the Demand Side Management Adjustor Charge • Modify the

  23. Slide 23: 2022 APS Rate Case Application

    2022 APS Rate Case Application Key Financials Test year ended June 30, 2022 Total Rate Base - Adjusted $13.1 Billion ACC Rate Base - Adjusted $10.5 Billion Embedded Long-Term Cost of Debt 3.85% Allowed Return on Equity 10.25% Capital Structure Long-term debt 48.07% Common equity 51.93% Base Fuel Rat

  24. Slide 24: 2022 APS Rate Case Procedural Schedule

    2022 APS Rate Case Procedural Schedule1 Arizona Public Service Company Docket # E-01345A-22-0144 Application Filed October 28, 2022 Staff/Intervenor Direct Testimony Due May 22, 2023 Staff/Intervenor Direct Testimony (Rate Design) Due June 5, 2023 APS Rebuttal Testimony Due June 28, 2023 Staff/Inter

  25. Slide 25: Regulatory 2023 key dates

    Regulatory 2023 key dates1 ACC Key Dates / Docket # Q1 Q2 Q3 Q4 APS Rebuttal due Hearing to begin 2022 Rate Case: E-01345A-22-0144 June 28 August 2 2024 PSA Rate to Power Supply Adjustor (PSA) E-01345A-19-0236: Effective March 1 be filed Nov 30 To be filed May 15; Transmission Cost Adjustor E-01345A

  26. Slide 26: Pension & Other Post Retirement Benefits (OPEB)

    Pension & Other Post Retirement Benefits (“OPEB”) Pension Funded Status1 Components of Benefit Cost 2023E2 Service Cost + 107% Non-Service Costs/(Credit): 106% Interest Cost - Expected Return on Assets3 - 104% Amortization of Prior Service Costs = Amortization of Actuarial Losses/(Gains) - YE 2020 Y

  27. Slide 27: Components and Key Drivers of Benefit Costs

    Components and Key Drivers of Benefit Costs1 Service Cost (a cost that increases Benefit Cost): • When discount rates decrease Service Cost increases and Benefit Cost increases (and vice versa) • Not impacted by asset assumptions Interest Cost (a cost that increases Benefit Cost): • When discount ra

  28. Slide 28: Non-GAAP Measure Reconciliation

    Non-GAAP Measure Reconciliation 2022 Actuals4 2023 Guidance4 Operating revenues1 $4.32 billion $4.43 - $4.52 billion Fuel and purchased power expenses1 $1.63 billion $1.64 - $1.67 billion Gross Margin $2.69 billion $2.79 - $2.85 billion Adjustments: Renewable energy and demand side management progra

  29. Slide 29: Consolidated statistics

    Consolidated statistics 3 Months Ended March 31, 3 Months Ended March 31, Incr 2023 2022 Incr (Decr) 2023 2022 (Decr) AVERAGE ELECTRIC TOTAL OPERATING REVENUES (Dollars in Millions) CUSTOMERS Retail Retail Customers 3 Months Ended June 30 3 Months Ended June 30 Residential $ 410 $ 367 42 Residential

  30. Slide 30: Consolidated statistics

    Consolidated statistics 3 Months Ended March 31, 3 Months Ended March 31, 3 Months Ended June 30 2023 2022 Incr (Decr) 2023 2022 Incr (Decr) WEATHER INDICATORS - ENERGY SOURCES (GWH) RESIDENTIAL Generation Production Actual Nuclear 2,507 2,397 110 Cooling Degree-Days - - - Coal 2,068 1,830 239 Heati

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