20190808
4.21 MB
32
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</xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2019-08-08</xbrli:startDate> <xbrli:endDate>2019-08-08</xbrli:endDate> </xbrli:period> </xbrli:context></ix:resources></ix:header></div><div><a id="s43CCDF5E1C3E55D6AA41A31342194A3F"></a></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;"><hr></hr></div><div style="line-height:120%;padding-top:5px;text-align:center;font-size:18pt;"><span style="font-family:inherit;font-size:18pt;font-weight:bold;">UNITED STATES</span></div><div style="line-height:120%;text-align:center;font-size:18pt;"><span style="font-family:inherit;font-size:18pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;font-weight:bold;">WASHINGTON, DC 20549</span><span style="font-family:inherit;font-size:12pt;"> </span></div><div style="line-height:120%;padding-bottom:2px;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;"><hr></hr></div><div style="line-height:120%;padding-top:17px;text-align:center;font-size:18pt;"><span style="font-family:inherit;font-size:18pt;font-weight:bold;">FORM </span><span><ix:nonNumeric id="d100355815e88-wk-Fact-5334D645B6CE5E2CBAC23288DFC3CF23" name="dei:DocumentType" contextRef="D2019Q3Aug08"><span style="font-size:18pt;font-weight:bold;">8-K</span></ix:nonNumeric></span><span style="font-family:inherit;font-size:12pt;"> </span></div><div style="line-height:120%;padding-bottom:2px;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;"><hr></hr></div><div style="line-height:120%;padding-top:17px;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;font-weight:bold;">CURRENT REPORT</span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;font-weight:bold;">Pursuant to Section 13 or 15(d) of the</span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;font-weight:bold;">Securities Exchange Act of 1934</span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="4"></td></tr><tr><td style="width:7%;"></td><td style="width:56%;"></td><td style="width:21%;"></td><td style="width:16%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-top:17px;text-align:right;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;font-weight:bold;">Date of report (Date of earliest event reported):</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-top:17px;text-align:right;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><span><span style="white-space:nowrap"><ix:nonNumeric id="d100355815e135-wk-Fact-BD94B59198275F0AAAED3ECF3709278F" name="dei:DocumentPeriodEndDate" contextRef="D2019Q3Aug08" format="ixt:datemonthdayyearen">August 8, 2019</ix:nonNumeric></span></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;"><hr></hr></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="8"></td></tr><tr><td style="width:16%;"></td><td style="width:3%;"></td><td style="width:9%;"></td><td style="width:16%;"></td><td style="width:16%;"></td><td style="width:17%;"></td><td style="width:3%;"></td><td style="width:20%;"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Commission File</span></div><div style="font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Number</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:1pt;"><span style="font-family:inherit;font-size:1pt;font-weight:bold;"> </span></div></td><td colspan="4" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Exact Name of Each Registrant as specified in its</span></div><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">charter; State of Incorporation; Address; and</span></div><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Telephone Number</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">IRS Employer</span></div><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Identification No.</span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e220-wk-Fact-CB780F0D56DE52EBA65F76F8B2A19ABD" name="dei:EntityFileNumber" contextRef="D2019Q3Aug08">1-8962</ix:nonNumeric></span></span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"> </span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;font-weight:bold;"><span><ix:nonNumeric id="d100355815e230-wk-Fact-C6A289219FB4577492017BAF66CAB59F" name="dei:EntityRegistrantName" contextRef="D2019Q3Aug08">PINNACLE WEST CAPITAL CORPORATION</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e255-wk-Fact-AA9B6253BFDC517D8F83256260E5DC02" name="dei:EntityTaxIdentificationNumber" contextRef="D2019Q3Aug08">86-0512431</ix:nonNumeric></span></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">(an Arizona corporation)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e312-wk-Fact-F5DD6DBCB7A35AD68E543066BC5954E9" name="dei:EntityAddressAddressLine1" contextRef="D2019Q3Aug08">400 North Fifth Street, P.O. Box 53999</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e353-wk-Fact-EF7A4669974057C99B29A04B3799BDB6" name="dei:EntityAddressCityOrTown" contextRef="D2019Q3Aug08">Phoenix</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><span><ix:nonNumeric id="d100355815e358-wk-Fact-AE1DECBD69BB54A8957A80EFBF1D0C85" name="dei:EntityAddressStateOrProvince" contextRef="D2019Q3Aug08" format="ixt-sec:stateprovnameen">Arizona</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e363-wk-Fact-F31D1364DDCA5A18A48E8099A1B53987" name="dei:EntityAddressPostalZipCode" contextRef="D2019Q3Aug08">85072-3999</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e394-wk-Fact-13C44ED0DBF55EC1ABCE3D2B44EBA3EB" name="dei:CityAreaCode" contextRef="D2019Q3Aug08">(602) </ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e399-wk-Fact-E4ED314074E35B3BB215F9DC81F25F59" name="dei:LocalPhoneNumber" contextRef="D2019Q3Aug08">250-1000</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e425-wk-Fact-161D7C82FDF65EFEA6C57948E66FCC8D" name="dei:EntityFileNumber" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">1-4473</ix:nonNumeric></span></span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"> </span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;font-weight:bold;"><span><ix:nonNumeric id="d100355815e435-wk-Fact-3FFDF6A650435B99837D8E4049E41329" name="dei:EntityRegistrantName" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">ARIZONA PUBLIC SERVICE COMPANY</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e460-wk-Fact-3F3F5ED7EDE7546B8649009E45451BA1" name="dei:EntityTaxIdentificationNumber" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">86-0011170</ix:nonNumeric></span></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">(an Arizona corporation)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e517-wk-Fact-B0848FDB5B2F538DA792DC4ED11F629C" name="dei:EntityAddressAddressLine1" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">400 North Fifth Street, P.O. Box 53999</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e558-wk-Fact-3E0EB1C4BD3A5CC9A42339B8D00CF648" name="dei:EntityAddressCityOrTown" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">Phoenix</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><span><ix:nonNumeric id="d100355815e563-wk-Fact-CA103F7EBDA059EF8D1A6AFC1E5A6680" name="dei:EntityAddressStateOrProvince" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember" format="ixt-sec:stateprovnameen">Arizona</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e568-wk-Fact-5AC769655111570890616DB05039B974" name="dei:EntityAddressPostalZipCode" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">85072-3999</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e599-wk-Fact-67BC2157CD095904916B382C04FEFB76" name="dei:CityAreaCode" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">(602)</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e604-wk-Fact-BD7C68EB042E530B815936AF141596A6" name="dei:LocalPhoneNumber" contextRef="D2019Q3Aug08_dei_LegalEntityAxis_pnw_ArizonaPublicServiceCompanyMember">250-1000</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></div><div style="line-height:120%;text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:11.5pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:4%;"></td><td style="width:96%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-top:17px;text-align:right;font-size:11.5pt;"><span style="font-family:Arial Unicode MS;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e647-wk-Fact-E84FCACEA3F35B0AB82816DB943C2D9A" name="dei:WrittenCommunications" contextRef="D2019Q3Aug08" format="ixt-sec:boolballotbox">☐</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:11.5pt;"><span style="font-family:Arial Unicode MS;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e669-wk-Fact-B2BF37363DB45058A5C0C1C4A9F81295" name="dei:SolicitingMaterial" contextRef="D2019Q3Aug08" format="ixt-sec:boolballotbox">☐</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:11.5pt;"><span style="font-family:Arial Unicode MS;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e691-wk-Fact-DF994966ECBF5AC79DF789170BEA96EF" name="dei:PreCommencementTenderOffer" contextRef="D2019Q3Aug08" format="ixt-sec:boolballotbox">☐</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:11.5pt;"><span style="font-family:Arial Unicode MS;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e713-wk-Fact-A0A23BADAE7E57B688CD28BB305F4C57" name="dei:PreCommencementIssuerTenderOffer" contextRef="D2019Q3Aug08" format="ixt-sec:boolballotbox">☐</ix:nonNumeric></span></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><br/></span></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><hr style="page-break-after:always"></hr><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Securities registered pursuant to Section 12(b) of the Act:</span></div><div style="line-height:120%;font-size:11.5pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:38%;"></td><td style="width:22%;"></td><td style="width:40%;"></td></tr><tr><td style="vertical-align:top;border-bottom:1px solid #00000a;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00000a;border-right:1px solid #00000a;border-top:1px solid #00000a;"><div style="padding-bottom:2px;text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Title of each class</span></div></td><td style="vertical-align:top;border-bottom:1px solid #00000a;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00000a;border-right:1px solid #00000a;border-top:1px solid #00000a;"><div style="padding-bottom:2px;text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Trading Symbol(s)</span></div></td><td style="vertical-align:top;border-bottom:1px solid #00000a;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00000a;border-right:1px solid #00000a;border-top:1px solid #00000a;"><div style="padding-bottom:2px;text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Name of each exchange on which registered</span></div></td></tr><tr><td style="vertical-align:top;border-bottom:1px solid #00000a;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00000a;border-right:1px solid #00000a;border-top:1px solid #00000a;"><div style="padding-bottom:2px;text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e755-wk-Fact-DFB063E094FE5BB796EA92536ABED8E0" name="dei:Security12bTitle" contextRef="D2019Q3Aug08">Common Stock</ix:nonNumeric></span></span></div></td><td style="vertical-align:top;border-bottom:1px solid #00000a;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00000a;border-right:1px solid #00000a;border-top:1px solid #00000a;"><div style="padding-bottom:2px;text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e760-wk-Fact-1379D3FBB4C451EEA8969C3AC1F79601" name="dei:TradingSymbol" contextRef="D2019Q3Aug08">PNW</ix:nonNumeric></span></span></div></td><td style="vertical-align:top;border-bottom:1px solid #00000a;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00000a;border-right:1px solid #00000a;border-top:1px solid #00000a;"><div style="padding-bottom:2px;text-align:center;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e765-wk-Fact-25BAA7F9D43C583AAC6ECA5BF9192262" name="dei:SecurityExchangeName" contextRef="D2019Q3Aug08" format="ixt-sec:exchnameen">The New York Stock Exchange</ix:nonNumeric></span></span></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><br/></span></div><div style="line-height:120%;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).</span></div><div style="line-height:120%;text-indent:384px;font-size:11.5pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:43.75%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:72%;"></td><td style="width:28%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-top:17px;text-align:right;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">Emerging growth company</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:11.5pt;"><span style="font-family:Arial Unicode MS;font-size:11.5pt;"><span><ix:nonNumeric id="d100355815e790-wk-Fact-DC53A95DC43559D3AB77D2FEADAA6DFF" name="dei:EntityEmergingGrowthCompany" contextRef="D2019Q3Aug08" format="ixt-sec:boolballotbox">☐</ix:nonNumeric></span></span></div></td></tr></table></div></div><div style="line-height:120%;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><br/></span></div><div style="line-height:120%;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. </span><span style="font-family:Wingdings;font-size:11.5pt;">¨</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;">This combined Form 8-K is separately filed or furnished by Pinnacle West Capital Corporation and Arizona Public Service Company. Each registrant is filing or furnishing on its own behalf all of the information contained in this Form 8-K that relates to such registrant and, where required, its subsidiaries. Except as stated in the preceding sentence, neither registrant is filing or furnishing any information that does not relate to such registrant, and therefore makes no representation as to any such information.</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:48px;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><br/></span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:48px;font-size:11.5pt;"><span style="font-family:inherit;font-size:11.5pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><hr style="page-break-after:always"></hr><div><a id="s41ed11ef7bf64dd3a984d4985a9b1c5b"></a></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;text-align:left;-sec-extract:summary;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Item 2.02. Results of Operations and Financial Condition.</span><span style="font-family:inherit;font-size:11pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">The following information is furnished pursuant to Item 2.02.</span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">On August 8, 2019, Pinnacle West issued a press release regarding its financial results for the fiscal quarter ended June 30, 2019 and its earnings outlook for 2019. A copy of the press release is attached hereto as Exhibit 99.1.</span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Item 7.01. Regulation FD Disclosure.</span><span style="font-family:inherit;font-size:11pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">The following information is furnished pursuant to Item 7.01.</span></div><div style="line-height:120%;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">The Company is providing a copy of the slide presentation made in connection with the quarterly earnings conference call on August 8, 2019. This information contains Company operating results for the fiscal quarter ended June 30, 2019, earnings outlook for 2019 and a quarterly consolidated statistical summary. The slide presentation is attached hereto as Exhibit 99.2 and is concurrently being posted to the Company’s website at www.pinnaclewest.com. </span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">  </span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Item 9.01.</span><span style="font-family:inherit;font-size:10pt;">    </span><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Financial Statements and Exhibits.</span><span style="font-family:inherit;font-size:11pt;"> </span></div><div style="line-height:120%;text-indent:48px;font-size:11pt;"><span style="font-family:inherit;font-size:10pt;"></span><span style="font-family:inherit;font-size:11pt;font-weight:bold;">(d)</span><span style="font-family:inherit;font-size:10pt;">    </span><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Exhibits</span><span style="font-family:inherit;font-size:11pt;"> </span></div><div style="line-height:120%;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;padding-bottom:14px;text-align:center;font-size:11pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:91.40625%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:11%;"></td><td style="width:20%;"></td><td style="width:69%;"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Exhibit No.</span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Registrant(s)</span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;font-weight:bold;">Description</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">99.1</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">Pinnacle West</span></div><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">APS</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11pt;"><a style="text-decoration:underline;color:#0000FF;-sec-extract:exhibit;" href="#pnw201906308kexhibit991.htm"><span style="font-family:inherit;font-size:11pt;">Earnings News Release issued on August 8, 2019</span></a><span style="font-family:inherit;font-size:11pt;">.</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">99.2</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">Pinnacle West</span></div><div style="text-align:center;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;">APS</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:11pt;"><a style="text-decoration:underline;color:#0000FF;-sec-extract:exhibit;" href="#exhibit992.htm"><span style="font-family:inherit;font-size:11pt;">Pinnacle West Capital Corporation Second Quarter 2019 Results slide presentation accompanying August 8, 2019 conference call.</span></a></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><hr style="page-break-after:always"></hr><div><a id="s56376eef78a149ff979e186e57007e09"></a></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div><div><br/></div><div style="line-height:120%;padding-bottom:4px;padding-top:16px;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">SIGNATURES</span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></div><div style="line-height:120%;text-align:justify;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:12pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:640px;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:184px;"></td><td style="width:64px;"></td><td style="width:392px;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">PINNACLE WEST CAPITAL CORPORATION</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">(Registrant)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Dated: August 8, 2019</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">By: /s/ James R. Hatfield            </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">James R. Hatfield</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Executive Vice President and</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Chief Financial Officer</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">ARIZONA PUBLIC SERVICE COMPANY</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">(Registrant)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Dated: August 8, 2019</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">By: /s/ James R. Hatfield            </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">James R. Hatfield</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Executive Vice President and</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;">Chief Financial Officer</span></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:11pt;"><span style="font-family:inherit;font-size:11pt;"><br/></span></div><div style="line-height:120%;font-size:12pt;"><span style="font-family:inherit;font-size:12pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div><br/></div><div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></div> </body> </html>