Revenue (Tables)

6 Months Ended

Jun. 30, 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 June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Retail Electric Revenue
Residential	$	531,717	$	515,128	$	872,555	$	840,201
Non-Residential	420,995		381,121		735,778		684,472
Wholesale Energy Sales	18,007		15,927		35,604		30,595
Transmission Services for Others	22,579		14,766		41,572		30,693
Other Sources	6,951		2,648		11,215		5,559
Total operating revenues	$	1,000,249	$	929,590	$	1,696,724	$	1,591,520

Schedule of Accounts Receivable

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

	June 30, 2021		December 31, 2020
Allowance for doubtful accounts, balance at beginning of period	$	19,782	$	8,171
Bad debt expense	10,048		20,633
Actual write-offs	(7,061)		(9,022)
Allowance for doubtful accounts, balance at end of period	$	22,769	$	19,782