v3.26.1
Business Segments (Tables)
 6 Months Ended
Jun. 30, 2026
Segment Reporting [Abstract]  
Schedule of Reportable Segment’s Revenues, Significant Expenses, Net Income, and Assets
The following table reconciles our reportable segment’s revenues, significant expenses, and net income (loss) to the Pinnacle West consolidated amounts (dollars in millions):
Three Months Ended June 30,
20262025
Regulated Electricity SegmentOther Pinnacle West ConsolidatedRegulated Electricity SegmentOther Pinnacle West Consolidated
Operating revenues$1,456 $— $1,456 $1,359 $— $1,359 
Fuel and purchased power (558)— (558)(477)— (477)
Operations and maintenance(281)(2)(283)(285)(2)(287)
Depreciation and amortization (243)— (243)(229)— (229)
Taxes other than income taxes (62)— (62)(58)— (58)
Allowance for equity funds used during construction17 — 17 15 — 15 
Pension and other postretirement non-service credits, net5 — 5 4 — 4 
Other income and (expense), net(8)10 2 (2)9 7 
Interest charges, net of allowance for borrowed funds used during construction(97)(25)(122)(80)(22)(102)
Income (taxes) benefit
(36)5 (31)(39)4 (35)
Less: Net income attributable to noncontrolling interests(2)— (2)(4)— (4)
Net Income (Loss) Attributable to Common Shareholders
$191 $(12)$179 $204 $(11)$193 
Six Months Ended June 30,
20262025
Regulated Electricity SegmentOtherPinnacle West ConsolidatedRegulated Electricity SegmentOtherPinnacle West Consolidated
Operating revenues$2,605 $— $2,605 $2,391 $— $2,391 
Fuel and purchased power (995)— (995)(857)— (857)
Operations and maintenance(554)(6)(560)(582)(5)(587)
Depreciation and amortization (483)— (483)(464)— (464)
Taxes other than income taxes (124)— (124)(117)— (117)
Allowance for equity funds used during construction32 — 32 28 — 28 
Pension and other postretirement non-service credits, net9 — 9 7 — 7 
Other income and (expense), net(10)11 1 2 20 22 
Interest charges, net of allowance for borrowed funds used during construction(189)(49)(238)(159)(38)(197)
Income taxes(44)12 (32)(36)7 (29)
Less: Net income attributable to noncontrolling interests(4)— (4)(9)— (9)
Net Income (Loss) Attributable to Common Shareholders
$243 $(32)$211 $204 $(16)$188 
The following table reconciles our reportable segment’s assets to the Pinnacle West consolidated amount (dollars in millions):
June 30, 2026December 31, 2025
Regulated Electricity SegmentOtherPinnacle West ConsolidatedRegulated Electricity SegmentOtherPinnacle West Consolidated
Total Assets$32,401 $176 $32,577 $29,886 $146 $30,032