Exhibit 99.2

 FORM OF CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
                               (DONALD E. BRANDT)

     I, Donald E. Brandt, Senior Vice President and Chief Financial Officer, of
Pinnacle West Capital Corporation ("Pinnacle West"), certify, to the best of my
knowledge, that: (a) the attached Quarterly Report on Form 10-Q of Pinnacle West
for the quarter ended March 31, 2003 (the "March 2003 Form 10-Q") fully complies
with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act
of 1934 and (b) the information contained in the March 2003 Form 10-Q Report
fairly presents, in all material respects, the financial condition and results
of operations of Pinnacle West.


                                        Donald E. Brandt
                                        ----------------------------------------
                                        Donald E. Brandt
                                        Senior Vice President and
                                        Chief Financial Officer

                                        Date: May 14, 2003