Business Context and Reporting Period
This Form 10-Q covers the quarterly period ended September 30, 2025, for Pinnacle West Capital Corporation (Pinnacle West) and its principal subsidiary, Arizona Public Service Company (APS). Pinnacle West is an investor-owned electric utility holding company, while APS is Arizona's largest electric utility, serving approximately 1.4 million retail customers. The filing includes unaudited condensed consolidated financial statements for both entities.
Key Financial Metrics (Nine Months Ended Sept 30, 2025)
| Metric | Pinnacle West (Consolidated) | APS (Consolidated) |
|---|---|---|
| Operating Revenues | $4,211.8 million | $4,211.8 million |
| Net Income Attributable to Common Shareholders | $601.1 million | $631.8 million |
| Earnings Per Share (Diluted) | $4.93 | N/A |
| Operating Cash Flow | $1,328.3 million | $1,356.5 million |
| Capital Expenditures | $1,955.1 million | $1,955.1 million |
| Total Assets | $29,892.9 million | $29,746.3 million |
| Long-Term Debt (less current) | $9,204.3 million | $7,889.7 million |
| Cash and Cash Equivalents | $30.9 million | $29.0 million |
Material Changes vs. Prior Period
- Revenue Growth: Operating revenues increased by $182.3 million (4.5%) compared to the nine months ended September 30, 2024. This was driven by higher retail revenues due to customer growth and usage patterns, increased transmission revenues, and the impact of new rates from the 2022 Rate Case.
- Net Income Decline: Net income attributable to common shareholders decreased by $14.5 million (2.4%) year-over-year. The decline was primarily due to the effects of weather, higher operations and maintenance expenses, lower pension non-service credits, and higher interest charges. These were partially offset by increased usage and the gain on the sale of Bright Canyon Energy (BCE) recognized in the prior year.
- Expense Increases: Operations and maintenance expenses rose by $48 million, largely due to increased information technology costs ($24 million) and corporate resource costs ($18 million). Fuel and purchased power expenses increased by $87 million.
- Asset Retirement Obligations: Asset retirement obligations increased by approximately $48 million, primarily due to revised cost estimates for the Cholla coal-fired power plant closure related to Coal Combustion Residuals (CCR) rules.
Guidance, Outlook, and Management Commentary
- 2025 Rate Case: APS filed an application on June 13, 2025, seeking a net base rate increase of $579.5 million (13.99%). The request addresses a revenue deficiency and includes proposals for a "Formula Rate Adjustment Mechanism" (FRAM) to reduce regulatory lag. Hearings are scheduled to begin in May 2026.
- Capital Expenditures: Estimated capital expenditures for the full year 2025 are approximately $2.4 billion. Future years (2026-2028) are projected to range between $2.6 billion and $2.7 billion annually, focusing on generation, distribution, and transmission upgrades.
- Resource Planning: APS continues to pursue a balanced energy mix to meet growing demand, particularly from large load customers like data centers. The company issued a 2024 All-Source Request for Proposal (ASRFP) seeking 2,000 MW of resources.
- Dividends: On October 22, 2025, the Board declared a quarterly dividend of $0.910 per share, increasing the indicated annual dividend to $3.64 per share.
- Regulatory Risks: Significant uncertainty remains regarding the repeal of Renewable Energy Standard (RES) and Energy Efficiency Standards (EES) rules by the Arizona Corporation Commission (ACC), as well as ongoing litigation regarding the Grid Access Charge (GAC) for solar customers.
Important Facts for Investor Verification
- Rate Case Outcome: Verify the final decision on the 2025 Rate Case, specifically the approved rate increase and the implementation of the Formula Rate Adjustment Mechanism (FRAM).
- Regulatory Repeals: Monitor the status of the ACC's vote to repeal RES and EES rules and the potential impact on APS's cost recovery mechanisms and surcharges.
- Cholla Plant Costs: Track the recovery of unrecovered book value and environmental remediation costs associated with the April 2025 cessation of coal operations at the Cholla Power Plant.
- Large Load Growth: Assess the execution of the "growth pays for growth" strategy and the subscription model for large load customers (e.g., data centers) to ensure infrastructure costs are covered without cross-subsidizing residential rates.
- Environmental Compliance: Review the financial impact of new EPA regulations regarding Coal Combustion Residuals (CCR) and potential changes to carbon emission standards for power plants.