Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of property, plant and equipment

Pinnacle West’s property, plant and equipment included in the December 31, 2015 and 2014 consolidated balance sheets is composed of the following (dollars in thousands):



Property, Plant and Equipment:	2015			2014
Generation	$	7,336,902		$	7,158,729
Transmission	2,494,744			2,247,309
Distribution	5,543,561			5,339,322
General plant	847,025			797,703
Plant in service and held for future use	16,222,232			15,543,063
Accumulated depreciation and amortization	(5,594,094		)	(5,397,751		)
Net	10,628,138			10,145,312
Construction work in progress	816,307			682,807
Palo Verde sale leaseback, net of accumulated depreciation	117,385			121,255
Intangible assets, net of accumulated amortization	123,975			119,755
Nuclear fuel, net of accumulated amortization	123,139			125,201
Total property, plant and equipment	$	11,808,944		$	11,194,330

Summary of supplemental cash flow information

The following table summarizes supplemental Pinnacle West cash flow information for each of the last three years (dollars in thousands):



	Year ended December 31,
	2015		2014			2013
Cash paid (received) during the period for:
Income taxes, net of refunds	$	6,550	$	(102,154	)	$	18,537
Interest, net of amounts capitalized	170,209		177,074			184,010
Significant non-cash investing and financing activities:
Accrued capital expenditures	$	83,798	$	44,712		$	33,184
Dividends declared but not paid	69,363		65,790			62,528
Liabilities assumed relating to acquisition of SCE Four Corners’ interest (see Note 3)	—		—			145,609