UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~Washington~~WASHINGTON, ~~D.C.~~DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): June 2730, ~~2017~~2023

Commission File Number	~~Exact Name of Registrant as Specified in Charter; State of Incorporation;Address and Telephone Number~~	~~IRS~~Exact ~~EmployerIdentification~~Name of Each Registrant as specified in its charter; State of Incorporation; Address; and Telephone Number		IRS Employer Identification No.
1-8962	~~Pinnacle West Capital Corporation(an Arizona corporation)400 North Fifth Street, P.O. Box 53999Phoenix, AZ 85072-3999(602) 250-1000~~	~~86-0512431~~PINNACLE WEST CAPITAL CORPORATION		86-0512431
1-4473	Arizona Public Service Company(an Arizona corporation)400 North Fifth Street, P.O. Box 53999Phoenix, AZ 85072-3999(602) 250-1000	86-0011170
		(an Arizona corporation)
		400 North Fifth Street, P.O. Box 53999
		Phoenix Arizona	85072-3999
		(602) 250-1000
1-4473		ARIZONA PUBLIC SERVICE COMPANY		86-0011170
		(an Arizona corporation)
		400 North Fifth Street, P.O. Box 53999
		Phoenix Arizona	85072-3999
		(602) 250-1000

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:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

¨Securities ~~Soliciting~~registered ~~material~~ pursuant to ~~Rule 14a-~~Section 12(b) of ~~under~~ the ~~Exchange~~ Act ~~(17 CFR 240.14a-12)~~:

¨Title ~~Pre-commencement~~of ~~communications~~each ~~pursuant~~class toTrading ~~Rule 14d-2~~Symbol(bs) ~~under~~Name ~~the~~of ~~Exchange~~each ~~Act~~exchange ~~(17~~on ~~CFR~~which ~~240.14d-2(b))~~registered Common Stock PNW The New York Stock Exchange

¨Indicate ~~Pre-commencement~~by ~~communications~~check ~~pursuant~~mark towhether the registrant is an emerging growth company as defined in Rule 405 ~~13e-4~~of the Securities Act of 1933 (c17 CFR §230.405) ~~under~~or Rule 12b-2 of the ~~Exchange~~Securities Exchange Act of 1934 (17 CFR §240.~~13e~~12b-~~4(c~~2)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ¨

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. ¨

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.

Item 7.01 Regulation FD Disclosure.

~~Investor~~Item ~~and~~9.01. ~~Analyst~~Financial ~~Meetings~~Statements and Exhibits.

~~Pinnacle West Capital Corporation~~ (~~“Pinnacle West”~~d) ~~will be participating in various meetings with securities analysts and investors on June 28, 2017 through June 29, 2017 and will be utilizing handouts during those meetings~~Exhibits. ~~Copies of the handouts are attached hereto as Exhibit 99.1.~~

~~Item~~The registrants hereby file the following Exhibits to Registration Statement on Form 9S-3 (No.~~01 Financial~~ 333-253889 ~~Statements~~ and ~~Exhibits~~No. 333-253889-01, which became effective on March 4, 2021).

(d) Exhibits

Exhibit No.	Description	Previously Filed as Exhibit	Date Filed

1.1	Underwriting Agreement dated June 27, 2023, in connection with the offering of $500,000,000 of 5.55% Notes due 2033

4.1	Thirtieth Supplemental Indenture relating to the issuance of $500,000,000 of 5.55% Notes due 2033

4.2	Note of 5.55% Notes due 2033

5.1	Opinion of Robert E. Smith, Executive Vice President, General Counsel and Chief Development Officer

99.1	Information relating to Item 14 of the Registration Statement on Form S-3 (No. 333-253889-01)

104	104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

Exhibit No.	Registrant(s)	Description
99.1	Pinnacle WestArizona PublicService Company	Pinnacle West handouts for use at meetings on June 28, 2017 through June 29, 2017

SIGNATURES

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.

		PINNACLE WEST CAPITAL CORPORATION
		(Registrant)
Dated: June 27, 2017		By: /s/ James R. Hatfield
Dated: June 30, 2023		By: /s/ Andrew Cooper
		James R. Hatfield
		Andrew Cooper
		Executive Vice President and
		Senior Vice President and
		Chief Financial Officer
		ARIZONA PUBLIC SERVICE COMPANY
		(Registrant)
Dated: June 27, 2017		By: /s/ James R. Hatfield
Dated: June 30, 2022		By: /s/ Andrew Cooper
		James R. Hatfield
		Andrew Cooper
		Executive Vice President and
		Senior Vice President and
		Chief Financial Officer

Co-Registrant CIK	0000007286
Co-Registrant Amendment Flag	false
Co-Registrant Form Type	8-K
Co-Registrant DocumentPeriodEndDate	2023-06-30
Co-Registrant Written Communications	false
Co-Registrant Solicitating Materials	false
Co-Registrant PreCommencement Tender Offer	false
Co-Registrant PreCommencement Issuer Tender Offer	false
Co-Registrant Emerging growth company	false

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