Revenue (Tables)

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table provides detail of Pinnacle West’s consolidated revenues disaggregated by revenue sources (dollars in thousands):

	Year Ended December 31,
	2025		2024		2023
Retail Electric Service
Residential	$	2,541,320	$	2,562,822	$	2,289,196
Non-Residential	2,542,936		2,334,925		2,048,416
Wholesale Energy Sales	108,661		96,857		208,985
Transmission Services for Others	129,667		119,038		138,631
Other Sources	17,355		11,273		10,763
Total Operating Revenues	$	5,339,939	$	5,124,915	$	4,695,991

Schedule of Allowance for Doubtful Accounts

The following table provides a rollforward of Pinnacle West’s allowance for doubtful accounts (dollars in thousands):

	Year Ended December 31,
	2025		2024		2023
Balance at beginning of period	$	24,849	$	22,433	$	23,778
Bad debt expense	28,603		35,799		23,399
Actual write-offs	(27,957)		(33,383)		(24,744)
Balance at end of period	$	25,495	$	24,849	$	22,433