EX-23.1 4 ex23-1.txt CONSENT OF DELOITTE & TOUCHE LLP Exhibit 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of Pinnacle West Capital Corporation on Form S-8 of our report dated February 8, 2002 (March 22, 2002, as to Note 18) appearing in the Annual Report on Form 10-K of Pinnacle West Capital Corporation for the year ended December 31, 2001. DELOITTE & TOUCHE LLP DELOITTE & TOUCHE LLP Phoenix, Arizona June 26, 2002