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    ACCESSION NUMBER:		0001104659-18-021232
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		14
    FILED AS OF DATE:		20180329
    DATE AS OF CHANGE:		20180329
    EFFECTIVENESS DATE:		20180329

    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:		18722525

    	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
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