Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

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

	Three Months Ended March 31,
	2021		2020
Retail Electric Revenue
Residential	$	340,838	$	325,073
Non-Residential	314,783		303,351
Wholesale Energy Sales	17,597		14,668
Transmission Services for Others	18,993		15,927
Other Sources	4,264		2,911
Total operating revenues	$	696,475	$	661,930

Schedule of Accounts Receivable

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

	March 31, 2021		December 31, 2020
Allowance for doubtful accounts, balance at beginning of period	$	19,782	$	8,171
Bad debt expense	4,151		20,633
Actual write-offs	(3,528)		(9,022)
Allowance for doubtful accounts, balance at end of period	$	20,405	$	19,782