<SEC-DOCUMENT>0001209191-15-076530.txt : 20151022
<SEC-HEADER>0001209191-15-076530.hdr.sgml : 20151022
<ACCEPTANCE-DATETIME>20151022205013
ACCESSION NUMBER:		0001209191-15-076530
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151020
FILED AS OF DATE:		20151022
DATE AS OF CHANGE:		20151022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PINNACLE WEST CAPITAL CORP
		CENTRAL INDEX KEY:			0000764622
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				860512431
		STATE OF INCORPORATION:			AZ
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		400 NORTH FIFTH STREET
		STREET 2:		MS8695
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85004
		BUSINESS PHONE:		602 250 1000

	MAIL ADDRESS:	
		STREET 1:		400 NORTH FIFTH STREET
		STREET 2:		MS8695
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85004

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AZP GROUP INC
		DATE OF NAME CHANGE:	19870506

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOMEZ BARBARA M
		CENTRAL INDEX KEY:			0001094564

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08962
		FILM NUMBER:		151171428

	MAIL ADDRESS:	
		STREET 1:		400 NORTH FIFTH STREET
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85004
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-10-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000764622</issuerCik>
        <issuerName>PINNACLE WEST CAPITAL CORP</issuerName>
        <issuerTradingSymbol>PNW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001094564</rptOwnerCik>
            <rptOwnerName>GOMEZ BARBARA M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>400 N. 5TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PHOENIX</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85004</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>VP, Human Resources - APS</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2015-10-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
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                <transactionCode>A</transactionCode>
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            <transactionTimeliness>
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            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1609</value>
                    <footnoteId id="F1"/>
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                <transactionPricePerShare>
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                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <transactionDate>
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                </transactionShares>
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                <value>Common Stock</value>
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                <transactionCode>G</transactionCode>
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                <footnoteId id="F4"/>
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                <value></value>
            </transactionTimeliness>
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                <transactionShares>
                    <value>962</value>
                </transactionShares>
                <transactionPricePerShare>
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                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3147</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5835</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by 401(k)</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares acquired upon the vesting of a portion of the performance shares granted in 2012.</footnote>
        <footnote id="F2">Shares retained by the Company for the purpose of meeting tax withholding requirements.  The recipient retained all other shares.</footnote>
        <footnote id="F3">Represents shares of common stock received by the individual in settlement of dividend rights that vested in connection with the performance shares that vested on October 20, 2015.</footnote>
        <footnote id="F4">The reporting person gifted the shares received on October 20, 2015 to a revocable family trust.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Diane Wood, Attorney-in-Fact</signatureName>
        <signatureDate>2015-10-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
