SCHEDULE II - RESERVE FOR UNCOLLECTIBLES

12 Months Ended

Dec. 31, 2012

SCHEDULE II - RESERVE FOR UNCOLLECTIBLES

SCHEDULE II - RESERVE FOR UNCOLLECTIBLES

PINNACLE WEST CAPITAL CORPORATION

SCHEDULE II — RESERVE FOR UNCOLLECTIBLES

(dollars in thousands)

Column A	Column B		Column C				Column D		Column E
			Additions
Description	Balance at beginning of period		Charged to cost and expenses		Charged to other accounts		Deductions		Balance at end of period
Reserve for uncollectibles:
2012	$	3,748	$	5,290	$	—	$	5,698	$	3,340
2011	4,709		5,672		—		6,633		3,748
2010	4,573		6,905		—		6,769		4,709

ARIZONA PUBLIC SERVICE COMPANY

SCHEDULE II — RESERVE FOR UNCOLLECTIBLES

(dollars in thousands)

Column A	Column B		Column C				Column D		Column E
			Additions
Description	Balance at beginning of period		Charged to cost and expenses		Charged to other accounts		Deductions		Balance at end of period
Reserve for uncollectibles:
2012	$	3,748	$	5,290	$	—	$	5,698	$	3,340
2011	4,376		5,751		—		6,379		3,748
2010	4,483		6,756		—		6,863		4,376