Consolidation and Nature of Operations (Tables)

9 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Supplemental Cash Flow Information

The following table summarizes supplemental Pinnacle West cash flow information (dollars in thousands):

	Nine Months Ended September 30,
	2025		2024
Cash paid during the period for:
Income taxes, net of refunds	$	7,701	$	49,385
Interest, net of amounts capitalized	283,358		265,673
Significant non-cash investing and financing activities:
Accrued capital expenditures	228,182		169,375
BCE Sale non-cash consideration (Note 19)	—		19,967

The following table summarizes supplemental APS cash flow information (dollars in thousands):

	Nine Months Ended September 30,
	2025		2024
Cash paid during the period for:
Income taxes, net of refunds	$	10,328	$	72,133
Interest, net of amounts capitalized	243,761		230,520
Significant non-cash investing and financing activities:
Accrued capital expenditures	228,182		169,375