Pinnacle West Capital (PNW) 8-K Pinnacle West Reports Second-quarter Results

Exhibit 99.2

Last Updated 7/29/2010

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended June 30, 2010 and 2009

		3 Months Ended June									6 Months Ended June
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	EARNINGS CONTRIBUTION BY SUBSIDIARY ($ Millions)
1	Arizona Public Service	$	95		$	83		$	12		$	111		$	72		$	39
2	APS Energy Services		1			(1	)		2			1			(2	)		3
3	SunCor		—			—			—			—			—			—
4	El Dorado		—			—			—			—			(6	)		6
5	Parent Company		(1	)		(1	)		—			(5	)		(4	)		(1	)
6	Income From Continuing Operations		95			81			14			107			60			47
	Income (Loss) From Discontinued Operations — Net of Tax
7	SunCor		(2	)		(19	)		17			(23	)		(247	)		224
8	Other		27			11			16			35			94			(59	)
9	Total		25			(8	)		33			12			(153	)		165
10	Net Income		120			73			47			119			(93	)		212
11	Less: Net Income (Loss) Attributable to Noncontrolling Interests		5			5			—			10			(5	)		15
12	Net Income Attributable to Common Shareholders	$	115		$	68		$	47		$	109		$	(88	)	$	197
	EARNINGS PER SHARE BY SUBSIDIARY — DILUTED
13	Arizona Public Service	$	0.88		$	0.82		$	0.06		$	1.06		$	0.72		$	0.34
14	APS Energy Services		0.01			(0.01	)		0.02			0.01			(0.02	)		0.03
15	SunCor		—			—			—			—			—			—
16	El Dorado		—			—			—			—			(0.06	)		0.06
17	Parent Company		(0.02	)		(0.01	)		(0.01	)		(0.06	)		(0.04	)		(0.02	)
18	Income From Continuing Operations		0.87			0.80			0.07			1.01			0.60			0.41
	Income (Loss) From Discontinued Operations — Net of Tax
19	SunCor		(0.02	)		(0.18	)		0.16			(0.22	)		(2.45	)		2.23
20	Other		0.26			0.11			0.15			0.34			0.93			(0.59	)
21	Total		0.24			(0.07	)		0.31			0.12			(1.52	)		1.64
22	Net Income		1.11			0.73			0.38			1.13			(0.92	)		2.05
23	Less: Net Income (Loss) Attributable to Noncontrolling Interests		0.04			0.05			(0.01	)		0.09			(0.05	)		0.14
24	Net Income Attributable to Common Shareholders	$	1.07		$	0.68		$	0.39		$	1.04		$	(0.87	)	$	1.91
25	BOOK VALUE PER SHARE	$	32.07		$	31.70		$	0.37		$	32.07		$	31.70		$	0.37
	COMMON SHARES OUTSTANDING (Thousands)
26	Average — Diluted		107,764			101,193			6,571			104,857			101,048			3,809
27	End of Period		108,511			101,171			7,340			108,511			101,071			7,440

See Glossary of Terms. Page 1 of 4

Last Updated 7/29/2010

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended June 30, 2010 and 2009

		3 Months Ended June									6 Months Ended June
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	ELECTRIC OPERATING REVENUES (Dollars in Millions)
	REGULATED ELECTRICITY
	SEGMENT
	Retail
28	Residential	$	360		$	377		$	(17	)	$	627		$	633		$	(6	)
29	Business		382			389			(7	)		672			687			(15	)
30	Total retail		742			766			(24	)		1,299			1,320			(21	)
	Wholesale revenue on delivered electricity
31	Traditional contracts		16			17			(1	)		34			28			6
32	Off-system sales		19			12			7			36			34			2
33	Transmission for others		9			8			1			17			15			2
34	Other miscellaneous services		13			9			4			26			18			8
35	Total regulated operating electricity revenues		799			812			(13	)		1,411			1,415			(4	)
	MARKETING AND TRADING
36	Electricity and other commodity sales		2			—			2			1			—			1
37	Total operating electric revenues	$	801		$	812		$	(11	)	$	1,412		$	1,415		$	(3	)
	ELECTRIC SALES (GWH)
	REGULATED ELECTRICITY
	SEGMENT
	Retail sales
38	Residential		2,957			3,180			(223	)		5,532			5,679			(147	)
39	Business		3,719			3,842			(123	)		6,886			7,102			(216	)
40	Total retail		6,676			7,022			(346	)		12,418			12,781			(363	)
	Wholesale electricity delivered
41	Traditional contracts		206			232			(26	)		361			397			(36	)
42	Off-system sales		674			720			(46	)		1,283			1,417			(134	)
43	Retail load hedge management		98			225			(127	)		299			377			(78	)
44	Total regulated electricity		7,654			8,199			(545	)		14,361			14,972			(611	)
	MARKETING AND TRADING
45	Wholesale sales of electricity		—			—			—			—			—			—
46	Total electric sales		7,654			8,199			(545	)		14,361			14,972			(611	)
	POWER SUPPLY ADJUSTOR (“PSA”) — REGULATED ELECTRICITY SEGMENT (Dollars in Millions)
47	Deferred fuel and purchased power regulatory asset — beginning balance	$	(105	)	$	(49	)	$	(56	)	$	(87	)	$	8		$	(95	)
48	Deferred fuel and purchased power costs — current period		(21	)		15			(36	)		(65	)		(13	)		(52	)
49	Interest on deferred fuel					—			—						—			—
50	Amounts recovered through revenues		29			(37	)		66			56			(66	)		122
51	Deferred fuel and purchased power regulatory asset — ending balance	$	(97	)	$	(71	)	$	(26	)	$	(97	)	$	(71	)	$	(26	)

See Glossary of Terms. Page 2 of 4

Last Updated 7/29/2010

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended June 30, 2010 and 2009

		3 Months Ended June									6 Months Ended June
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	AVERAGE ELECTRIC CUSTOMERS
	Retail customers
52	Residential		989,122			981,749			7,373			992,088			985,212			6,876
53	Business		125,533			125,245			288			125,465			125,178			287
54	Total		1,114,655			1,106,994			7,661			1,117,553			1,110,390			7,163
55	Wholesale customers		51			44			7			51			47			4
56	Total customers		1,114,706			1,107,038			7,668			1,117,604			1,110,437			7,167
57	Customer growth (% over prior year)		0.7	%		0.7	%		0.0	%		0.6	%		0.7	%		(0.1	)%
	RETAIL SALES (GWH) — WEATHER NORMALIZED
58	Residential		3,196			3,150			46			5,751			5,736			15
59	Business		3,813			3,818			(5	)		7,009			7,078			(69	)
60	Total		7,009			6,968			41			12,760			12,814			(54	)
	RETAIL USAGE (KWh/Average Customer)
61	Residential		2,989			3,239			(250	)		5,576			5,764			(188	)
62	Business		29,628			30,678			(1,083	)		54,886			56,738			(1,852	)
	RETAIL USAGE - WEATHER NORMALIZED (KWh/Average Customer)
63	Residential		3,231			3,209			22			5,796			5,822			(26	)
64	Business		30,374			30,513			(139	)		55,865			56,550			(685	)
	ELECTRICITY DEMAND (MW)
65	Native load peak demand		6,463			6,443			20			6,463			6,443			20
	WEATHER INDICATORS
	Actual
66	Cooling degree-days		381			461			(80	)		381			461			(80	)
67	Heating degree-days		19			24			(5	)		520			407			113
68	Average humidity		19	%		20	%		(1	)%		32	%		28	%		4	%
	10-Year Averages
69	Cooling degree-days		511			501			10			511			501			10
70	Heating degree-days		20			20			—			522			522			—
71	Average humidity		20	%		20	%		—			28	%		31	%		(3	)%

See Glossary of Terms. Page 3 of 4

Last Updated 7/29/2010

Pinnacle West Capital Corporation

Quarterly Consolidated Statistical Summary
Periods Ended June 30, 2010 and 2009

		3 Months Ended June									6 Months Ended June
Line		2010			2009			Incr (Decr)			2010			2009			Incr (Decr)
	ENERGY SOURCES (GWH)
	Generation production
72	Nuclear		2,011			2,014			(3	)		4,376			4,507			(131	)
73	Coal		3,116			2,857			259			6,123			5,808			315
74	Gas, oil and other		1,196			1,283			(87	)		2,012			2,308			(296	)
75	Total generation production		6,323			6,154			169			12,511			12,623			(112	)
	Purchased power
76	Firm load		1,356			1,890			(534	)		1,828			2,398			(570	)
77	Marketing and trading		423			726			(303	)		844			986			(142	)
78	Total purchased power		1,779			2,616			(837	)		2,672			3,384			(712	)
79	Total energy sources		8,102			8,770			(668	)		15,183			16,007			(824	)
	POWER PLANT PERFORMANCE
	Capacity Factors
80	Nuclear		80	%		81	%		(1	)%		88	%		31	%		57	%
81	Coal		81	%		75	%		6	%		81	%		77	%		4	%
82	Gas, oil and other		20	%		21	%		(1	)%		15	%		19	%		(4	)%
83	System average		48	%		45	%		3	%		47	%		46	%		1	%
	ECONOMIC INDICATORS
	Building Permits — Metro Phoenix (a)
84	Single-family		935			1,007			(72	)		2,861			1,844			1,017
85	Multi-family		135			317			(182	)		404			856			(452	)
86	Total		1,070			1,324			(254	)		3,265			2,700			565
	Arizona Job Growth (b)
87	Payroll job growth (% over prior year)		(0.8	)%		(7.9	)%		7.1	%		(2.4	)%		(7.2	)%		4.8	%
88	Unemployment rate (%, seasonally adjusted)		9.6	%		9.2	%		0.4	%		9.5	%		8.8	%		0.7	%

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