Other Income and Other Expense (Tables)

3 Months Ended

Mar. 31, 2018

Component of Other Income and Other Expense Nonoperating [Line Items]

Detail of other income and other expense

The following table provides detail of Pinnacle West's Consolidated other income and other expense for the three months ended March 31, 2018 and 2017 (dollars in thousands):

	Three Months Ended   March 31,
	2018			2017
Other income:
Interest income	$	1,891		$	477
Debt return on Four Corners SCR deferral (Note 4)	2,092			—
Miscellaneous	2			3
Total other income	$	3,985		$	480
Other expense:
Non-operating costs	$	(1,646	)	$	(1,959	)
Investment losses — net	(176		)	(301		)
Miscellaneous	(1,407		)	(1,420		)
Total other expense	$	(3,229	)	$	(3,680	)

Arizona Public Service Company

Component of Other Income and Other Expense Nonoperating [Line Items]

Detail of other income and other expense

The following table provides detail of APS’s other income and other expense for the three months ended March 31, 2018 and 2017 (dollars in thousands):

	Three Months Ended   March 31,
	2018			2017
Other income:
Interest income	$	1,678		$	338
Debt return on Four Corners SCR deferral (Note 4)	2,092			—
Miscellaneous	2			4
Total other income	$	3,772		$	342
Other expense:
Non-operating costs	$	(1,539	)	$	(1,752	)
Miscellaneous	(1,406		)	(1,376		)
Total other expense	$	(2,945	)	$	(3,128	)