Pinnacle West Capital Corporation (PNW)

Arizona electric utility, holding company counted. Read October 19, 2026 from the annual report for the period ending December 31, 2025, filed February 25, 2026. Ranked 20 of the 30 Utilities companies read so far, by the share within reach now.

Pinnacle West’s 6,610 employees are 6,516 at Arizona Public Service, including about 2,400 at jointly-owned plants it manages, and 94 at the holding company, both counted.

The figures on this page come from the company's own annual report and from BLS staffing patterns for its industries, never from a roster. They are estimates with a stated method. Nothing here says what the company will do: within reach is not a forecast of jobs lost or of savings.

What follows from the reading

Share of working time within reach of AI, on the long-run pace at four in five: 21% now, 35% at the end of 2027, 42% at the end of 2028, 45% at the end of 2030. By the patterns, the work is about 45% desk work, 15% people work and 40% body work. These are the site's industry estimates weighted by the shares below: estimates with a stated method and range, not a forecast of what the company will do. By the same patterns, at the end of 2028 about 53% of the working time stays with people (conversation, in-person and hands-on work), 38% becomes checking a model's work and 5% could be handed over with lighter checks, from the industries' own figures, not the company's roles.

Headcount

6,610 employees as of December 31, 2025 (stated). Arizona Public Service serves Arizona; the filing describes no operations abroad, so the share is recorded as 1 with a flag.

The filing: “Approximate number of employees at December 31, 2025: Pinnacle West 94, APS 6,516 (including approximately 2,400 at jointly-owned generating facilities for which APS serves as the generating facility manager), total 6,610.”

The workforce as industry patterns

What the filing says about the workforce: 6,610 employees: Pinnacle West 94, APS 6,516 including about 2,400 at jointly-owned generating facilities APS manages; about 1,120 APS employees represented by the IBEW under an agreement amendable April 1, 2026.

Companies read with the same leading pattern

Other companies whose largest staffing pattern is also Electric Power Generation, Transmission and Distribution, largest first, each read from its own annual report. Within reach now and at the end of 2028, long-run pace, four in five.

• The Southern Company (SO, 29,800 employees)22% now, 45% by 2028
• PG&E Corporation (PCG, 29,010 employees)21% now, 42% by 2028
• Duke Energy Corporation (DUK, 26,441 employees)21% now, 41% by 2028
• Exelon Corporation (EXC, 20,571 employees)22% now, 45% by 2028
• American Electric Power Company, Inc. (AEP, 17,581 employees)24% now, 50% by 2028
• NextEra Energy, Inc. (NEE, 17,400 employees)21% now, 41% by 2028
• NRG Energy, Inc. (NRG, 16,702 employees)19% now, 32% by 2028
• Consolidated Edison, Inc. (ED, 15,407 employees)21% now, 42% by 2028

What the filing says about AI

10 sentences in the filing name AI. The filing names AI ten times: load growth from data centers supporting AI, and AI in its glossary and risk factors.

• “Part II, Item 8 also includes Combined Notes to Consolidated Financial Statements. i Table of Contents GLOSSARY OF NAMES AND TECHNICAL TERMS ACC Arizona Corporation Commission ADEQ Arizona Department of Environmental Quality AFUDC Allowance for funds used during construction AI Artificial intelligence ANPP Arizona Nuclear Power Project, also known as Palo Verde APS Arizona Public Service Compan...”
• “In addition to the Risk Factors described in Part I, Item 1A and in Part II, Item 7 - "Management's Discussion and Analysis of Financial Condition and Results of Operations" of this report, these factors include, but are not limited to: our ability to achieve timely and adequate rate recovery of our costs through our regulated rates and adjustor recovery mechanisms, including returns on and of...”
• “Recent industry trends and projections of load growth reflect significant demand from data centers to support AI as well as onshoring of manufacturing, such as advanced semiconductor manufacturing.”
• “Additionally, the future demand from these customers may not be realized to the extent currently projected and significant uncertainties exist regarding the future energy demand associated with data centers and AI.”
• “APS's strategy, including the timing of such strategy, in adopting new technologies, such as artificial intelligence, could also adversely impact APS's business.”

Its annual reports, year by year

Sentences naming AI in each annual report, counted by one rule, beside the median report in the Index that year. Each count links its filing. Every company, by year and sector

• Fiscal 20210median 0
• Fiscal 20220median 0
• Fiscal 20231median 1
• Fiscal 20245median 4
• Fiscal 202510median 10

Headcount by filing year

As reported in each year's annual report, with the filing. A year marked not read had no figure the reading could take from the report's text.

Limits of this reading

• The collector’s 1,120 was the IBEW union count; the filing’s table totals 6,610 (rule 2).
• The U.S. share is recorded as 1 from the filing’s Arizona service territory.
• About 2,400 of the APS count work at jointly-owned generating facilities APS manages, counted as the filing counts them.

Source: the company's annual report on EDGAR, accession 0000764622-26-000011, the filing. Read by Claude Fable 5.1 under rubric version 1, by the method. A company can write to info@stratussc.com to have its reading checked against its filing.