    <SEC-DOCUMENT>0001206774-19-001109-index.html : 20190328
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    <ACCEPTANCE-DATETIME>20190328133323
    ACCESSION NUMBER:		0001206774-19-001109
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		13
    FILED AS OF DATE:		20190328
    DATE AS OF CHANGE:		20190328
    EFFECTIVENESS DATE:		20190328

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08962
    		FILM NUMBER:		19711143

    	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
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>pnw3494631-defa14a.htm
    <DESCRIPTION>DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS
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    Document 1 - file: pnw3494631-defa14a.htm

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: pnw3494631-def14a1logo.jpg

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    <FILENAME>pnw3494631-defa14ax1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: pnw3494631-defa14ax1x1.jpg

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: pnw3494631-defa14ax2x1.jpg

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    Document 5 - file: pnw3494631-defa14ax2x2.jpg

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    <FILENAME>pnw3494631-defa14ax2x3.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: pnw3494631-defa14ax2x3.jpg

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    <FILENAME>pnw3494631-defa14ax3x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: pnw3494631-defa14ax3x1.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 8 - file: pnw3494631-defa14ax4x1.jpg

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    Document 9 - file: pnw3494631-defa14ax5x2.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 10 - file: pnw3494631-defa14ax5x3.jpg

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    <FILENAME>pnw3494631-defa14ax5x4.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: pnw3494631-defa14ax5x4.jpg

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    <FILENAME>pnw3494631-defa14ax5x5.jpg
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    <TEXT>
    Document 12 - file: pnw3494631-defa14ax5x5.jpg

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