Revenue (Tables)

12 Months Ended

Dec. 31, 2024

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of revenue

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

	Year Ended December 31,
	2024		2023		2022
Retail Electric Service
Residential	$	2,562,822	$	2,289,196	$	2,046,111
Non-Residential	2,334,925		2,048,416		1,767,616
Wholesale Energy Sales	96,857		208,985		383,126
Transmission Services for Others	119,038		138,631		116,628
Other Sources	11,273		10,763		10,904
Total Operating Revenues	$	5,124,915	$	4,695,991	$	4,324,385

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,
	2024		2023		2022
Balance at beginning of period	$	22,433	$	23,778	$	25,354
Bad debt expense	35,799		23,399		17,006
Actual write-offs	(33,383)		(24,744)		(18,582)
Balance at end of period	$	24,849	$	22,433	$	23,778