Pinnacle West Capital Corporation
Pinnacle West Capital Corporation is an energy holding company based in Arizona. It provides electricity to customers through its subsidiary, Arizona Public Service.

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Performance
In 2024, Pinnacle West Capital Corporation reported a 9.1% year-over-year revenue increase to $5.13 billion and a 21.4% rise in net income to $608.8 million ($5.24 per share), driven by strong customer growth, increased energy demand, and new rates. The company also announced plans to add 9,805 MW of mostly carbon-free energy capacity by 2028 to support projected annual sales growth of 4–6%.
Quality of Earnings
The company demonstrates strong adherence to General Accounting Principles, with financial reports that conform to GAAP, are decision-useful, sustainable, and offer returns exceeding the cost of capital. There have been no recent changes to accounting policies, and all required financial reports are submitted on time. Revenue quality is also robust, marked by high predictability—with a substantial portion of clients returning year after year—strong profitability with gross margins exceeding 70%, diversified income sources with no client accounting for more than 15% of revenue, and clear growth in both revenue and net income. Additionally, there are no significant financial report warning signs: earnings contain minimal accrual components, do not narrowly beat benchmarks in a suspicious pattern, and revenue is not recognized prematurely. Expenses are not misrepresented, audit opinions are unqualified, goodwill is properly assessed, and the company does not rely on aggressive accounting tactics such as related-party transactions or off-balance-sheet debt. Operating ccash flows align with net income, earnings are recurring and persistent, and there is no history of restatements or enforcement actions, reinforcing the reliability and quality of the company’s financial reporting.

Company Summary
Pinnacle West Capital Corporation is an investor-owned electric utility holding company based in Phoenix, Arizona, primarily operating through its subsidiary, Arizona Public Service Company (APS), to provide electricity to approximately 1.4 million customers across the state.
