Exhibit 99.2

 FORM OF CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
                              (MICHAEL V. PALMERI)

     I, Michael V. Palmeri, Vice President, Finance, 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 quarterly
period ended September 30, 2002 (the "September 2002 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 September 2002 Form 10-Q Report
fairly presents, in all material respects, the financial condition and results
of operations of Pinnacle West.


                                        Michael V. Palmeri
                                        ----------------------------------------
                                        Michael V. Palmeri
                                        Vice President, Finance

                                        Date: November 14, 2002