Revenue (Tables)

3 Months Ended

Mar. 31, 2018

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,
	2018
Retail residential electric service	$	316,675
Retail non-residential electric service	343,189
Wholesale energy sales	12,089
Transmission services for others	14,845
Other sources	5,916
Total operating revenues	$	692,714