Arizona Public Service 8-K Pinnacle West Reports 2010 Fourth-quarter and Full-year Results

Exhibit 99.2

Last Updated 2/18/2011

Pinnacle West Capital Corporation
 
Quarterly Consolidated Statistical Summary
Periods Ended December 31, 2010 and 2009

		3 Months Ended December									12 Months Ended December
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	EARNINGS CONTRIBUTION BY SUBSIDIARY ($ Millions)
1	Arizona Public Service	$	13		$	(4	)	$	17		$	356		$	270		$	86
2	APS Energy Services		2			(1	)		3			5			(4	)		9
3	SunCor		—			—			—			—			—			—
4	El Dorado		—			(1	)		1			2			(7	)		9
5	Parent Company		(3	)		(5	)		2			(12	)		(6	)		(6	)
6	Income From Continuing Operations		12			(11	)		23			351			253			98
	Income (Loss) From Discontinued Operations — Net of Tax
7	SunCor		—			(26	)		26			(9	)		(294	)		285
8	Other		—			12			(12	)		28			114			(86	)
9	Total		—			(14	)		14			19			(180	)		199
10	Net Income		12			(25	)		37			370			73			297
11	Less: Net Income (Loss) Attributable to Noncontrolling Interests		5			5			—			20			5			15
12	Net Income Attributable to Common Shareholders	$	7		$	(30	)	$	37		$	350		$	68		$	282
	EARNINGS PER SHARE BY SUBSIDIARY — DILUTED
13	Arizona Public Service	$	0.12		$	(0.04	)	$	0.16		$	3.32		$	2.67		$	0.65
14	APS Energy Services		0.01			(0.01	)		0.02			0.05			(0.04	)		0.09
15	SunCor		—			—			—			—			—			—
16	El Dorado		—			(0.01	)		0.01			0.01			(0.07	)		0.08
17	Parent Company		(0.02	)		(0.05	)		0.03			(0.11	)		(0.07	)		(0.04	)
18	Income From Continuing Operations		0.11			(0.11	)		0.22			3.27			2.49			0.78
	Income (Loss) From Discontinued Operations — Net of Tax
19	SunCor		0.01			(0.26	)		0.27			(0.08	)		(2.91	)		2.83
20	Other		—			0.12			(0.12	)		0.27			1.13			(0.86	)
21	Total		0.01			(0.14	)		0.15			0.19			(1.78	)		1.97
22	Net Income		0.12			(0.25	)		0.37			3.46			0.71			2.75
23	Less: Net Income (Loss) Attributable to Noncontrolling Interests		0.05			0.05			—			0.19			0.04			0.15
24	Net Income Attributable to Common Shareholders	$	0.07		$	(0.30	)	$	0.37		$	3.27		$	0.67		$	2.60
25	BOOK VALUE PER SHARE	$	33.86		$	32.69		$	1.17		$	33.86		$	32.69		$	1.17
	COMMON SHARES OUTSTANDING (Thousands)
26	Average — Diluted		109,224			101,320			7,904			107,138			101,264			5,874
27	End of Period		108,770			101,435			7,335			108,770			101,435			7,335

See Glossary of Terms. Page 1 of 4

Last Updated 2/18/2011

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended December 31, 2010 and 2009

		3 Months Ended December									12 Months Ended December
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	ELECTRIC OPERATING REVENUES (Dollars in Millions)
	REGULATED ELECTRICITY SEGMENT
	Retail
28	Residential	$	281		$	275		$	6		$	1,504		$	1,496		$	8
29	Business		324			334			(10	)		1,441			1,467			(26	)
30	Total retail		605			609			(4	)		2,945			2,963			(18	)
	Wholesale revenue on delivered electricity
31	Traditional contracts		11			10			1			65			59			6
32	Off-system sales		20			16			4			86			58			28
33	Transmission for others		8			8			—			34			33			1
34	Other miscellaneous services		10			7			3			50			36			14
35	Total regulated operating electricity revenues		654			650			4			3,180			3,149			31
	MARKETING AND TRADING
36	Electricity and other commodity sales		—			—			—			1			—			1
37	Total operating electric revenues	$	654		$	650		$	4		$	3,181		$	3,149		$	32
	ELECTRIC SALES (GWH)
	REGULATED ELECTRICITY SEGMENT
	Retail sales
38	Residential		2,613			2,587			26			13,035			13,214			(179	)
39	Business		3,463			3,484			(21	)		14,674			14,959			(285	)
40	Total retail		6,076			6,071			5			27,709			28,173			(464	)
	Wholesale electricity delivered
41	Traditional contracts		127			137			(10	)		750			829			(79	)
42	Off-system sales		674			437			237			2,742			2,228			514
43	Retail load hedge management		116			137			(21	)		679			1,054			(375	)
44	Total regulated electricity		6,993			6,782			211			31,880			32,284			(404	)
	MARKETING AND TRADING
45	Wholesale sales of electricity		—			—			—			—			—			—
46	Total electric sales		6,993			6,782			211			31,880			32,284			(404	)
	POWER SUPPLY ADJUSTOR (“PSA”) - - REGULATED ELECTRICITY SEGMENT (Dollars in Millions)
47	Deferred fuel and purchased power regulatory asset — beginning balance	$	(41	)	$	(60	)	$	19		$	(87	)	$	8		$	(95	)
48	Deferred fuel and purchased power costs — current period		(44	)		5			(49	)		(93	)		52			(145	)
49	Interest on deferred fuel		—			—			—			—			—			—
50	Amounts recovered through revenues		27			(32	)		59			122			(147	)		269
51	Deferred fuel and purchased power regulatory asset — ending balance	$	(58	)	$	(87	)	$	29		$	(58	)	$	(87	)	$	29

See Glossary of Terms. Page 2 of 4

Last Updated 2/18/2011

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended December 31, 2010 and 2009

		3 Months Ended December									12 Months Ended December
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	AVERAGE ELECTRIC CUSTOMERS
	Retail customers
52	Residential		990,319			985,077			5,242			989,989			983,539			6,450
53	Business		125,232			125,320			(88	)		125,320			125,242			78
54	Total		1,115,551			1,110,397			5,154			1,115,309			1,108,781			6,528
55	Wholesale customers		51			51			—			51			48			3
56	Total customers		1,115,602			1,110,448			5,154			1,115,360			1,108,829			6,531
57	Customer growth (% over prior year)		0.5	%		0.5	%		0.0	%		0.6	%		0.6	%		0.0	%
	RETAIL SALES (GWH) - WEATHER NORMALIZED
58	Residential		2,614			2,616			(2	)		13,131			13,218			(87	)
59	Business		3,460			3,524			(64	)		14,789			14,983			(194	)
60	Total		6,074			6,140			(66	)		27,920			28,201			(281	)
	RETAIL USAGE (KWh/Average Customer)
61	Residential		2,639			2,627			12			13,167			13,435			(268	)
62	Business		27,654			27,798			(144	)		117,092			119,441			(2,349	)
	RETAIL USAGE - WEATHER NORMALIZED (KWh/Average Customer)
63	Residential		2,640			2,656			(16	)		13,263			13,439			(176	)
64	Business		27,629			28,116			(487	)		118,010			119,634			(1,624	)
	ELECTRICITY DEMAND (MW)
65	Native load peak demand		5,758			4,873			885			6,936			7,218			(282	)
	WEATHER INDICATORS — RESIDENTIAL
	Actual
66	Cooling degree-days		60			22			38			1,740			1,824			(84	)
67	Heating degree-days		309			399			(90	)		829			806			23
68	Average humidity		38	%		24	%		14	%		26	%		23	%		3	%
	10-Year Averages
69	Cooling degree-days		50			50			0	%		1,730			1,730			0	%
70	Heating degree-days		374			374			0	%		896			896			0	%
71	Average humidity		28	%		28	%		0	%		26	%		26	%		0	%

See Glossary of Terms. Page 3 of 4

Last Updated 2/18/2011

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended December 31, 2010 and 2009

		3 Months Ended December									12 Months Ended December
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	ENERGY SOURCES (GWH)
	Generation production
72	Nuclear		2,169			1,872			297			9,079			8,923			156
73	Coal		3,160			3,311			(151	)		12,383			12,510			(127	)
74	Gas, oil and other		1,314			1,347			(33	)		5,366			5,941			(575	)
75	Total generation production		6,643			6,530			113			26,828			27,374			(546	)
	Purchased power
76	Firm load		611			472			139			5,429			5,100			329
77	Marketing and trading		206			251			(45	)		1,531			1,990			(459	)
78	Total purchased power		817			723			94			6,960			7,090			(130	)
79	Total energy sources		7,460			7,253			207			33,788			34,464			(676	)
	POWER PLANT PERFORMANCE
	Capacity Factors
80	Nuclear		86	%		74	%		12	%		91	%		89	%		2	%
81	Coal		82	%		86	%		(4	)%		81	%		82	%		(1	)%
82	Gas, oil and other		18	%		18	%		0	%		18	%		20	%		(2	)%
83	System average		48	%		47	%		1	%		49	%		50	%		(1	)%
	ECONOMIC INDICATORS
	Building Permits — Metro Phoenix (a)
84	Single-family		903			1,637			(734	)		5,602			6,352			(750	)
85	Multi-family		164			181			(17	)		760			1,198			(438	)
86	Total		1,067			1,818			(751	)		6,362			7,550			(1,188	)
	Arizona Job Growth (b)
87	Payroll job growth (% over prior year)		1.2	%		(6.6	)%		7.8	%		(0.9	)%		(7.3	)%		6.4	%
88	Unemployment rate (%, seasonally adjusted)		9.4	%		9.3	%		0.1	%		9.5	%		9.1	%		0.4	%

Sources:

(a)	Arizona Real Estate Center, Arizona State University W.P. Carey College of Business
(b)	Arizona Department of Economic Security

See Glossary of Terms. Page 4 of 4