Current Report Filing (8-k)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 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): October 20, 2016



Commission File Number	Exact Name of Registrant as Specified in Charter; State of Incorporation; Address and Telephone Number	IRS Employer Identification Number

1-8962	Pinnacle West Capital Corporation (an Arizona corporation) 400 North Fifth Street, P.O. Box 53999 Phoenix, AZ 85072-3999 (602) 250-1000	86-0512431

1-4473	Arizona Public Service Company (an Arizona corporation) 400 North Fifth Street, P.O. Box 53999 Phoenix, AZ 85072-3999 (602) 250-1000	86-0011170

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))

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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On October 20, 2016, the Board of Directors (the “Board”) of Pinnacle West Capital Corporation ("Pinnacle West") expanded the number of Directors on the Board by one and elected Ms. Paula J. Sims as a Director. Ms. Sims’s initial term will extend until the Pinnacle West 2017 Annual Meeting of Shareholders in May 2017 (“2017 Annual Meeting of Shareholders”). The Board of Arizona Public Service Company (“APS”), the principal subsidiary of Pinnacle West, also elected Ms. Sims to its Board. Ms. Sims has been appointed to the Finance and Nuclear and Operating Committees of Pinnacle West. Ms. Sims will participate in the compensation arrangements for non-employee directors described on page 89 of the Pinnacle West Proxy Statement for its Annual Meeting of Shareholders held on May 18, 2016, except the annual retainer and equity grant will be prorated to reflect her service from the date of her election until the 2017 Annual Meeting of Shareholders.

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: October 24, 2016		By: /s/ James R. Hatfield
		James R. Hatfield
		Executive Vice President and
		Chief Financial Officer

		ARIZONA PUBLIC SERVICE COMPANY
		(Registrant)

Dated: October 24, 2016		By: /s/ James R. Hatfield
		James R. Hatfield
		Executive Vice President and
		Chief Financial Officer