Revenue (Tables)

12 Months Ended

Dec. 31, 2023

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,
	2023		2022		2021
Retail Electric Service
Residential	$	2,289,196	$	2,046,111	$	1,913,324
Non-Residential	2,048,416		1,767,616		1,586,940
Wholesale Energy Sales	208,985		383,126		187,640
Transmission Services for Others	138,631		116,628		99,285
Other Sources	10,763		10,904		16,646
Total Operating Revenues	$	4,695,991	$	4,324,385	$	3,803,835

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,
	2023		2022		2021
Allowance for doubtful accounts, balance at beginning of period	$	23,778	$	25,354	$	19,782
Bad debt expense	23,399		17,006		22,251
Actual write-offs	(24,744)		(18,582)		(16,679)
Allowance for doubtful accounts, balance at end of period	$	22,433	$	23,778	$	25,354