EXHIBIT 23.5

              [Letterhead of Netherland, Sewell & Associates, Inc.]


                CONSENT OF NETHERLAND, SEWELL & ASSOCIATES, INC.

     We hereby consent to the  incorporation  by reference in this  Registration
Statement on Form S-8 pertaining to the 2000 Employee Stock Purchase Plan of our
report included in Calpine Corporation's Annual Report on Form 10-K for the year
ended  December 31, 2003  regarding  Calpine  Corporation's  estimated  domestic
proved  reserves  and to the  references  to this firm  included  in such Annual
Report.


                                        NETHERLAND, SEWELL &
                                        ASSOCIATES, INC.


                                        By:  /s/ DANNY D. SIMMONS
                                             -----------------------------------
                                                 Danny D. Simmons
                                                 Executive Vice President


Houston, Texas
July 9, 2004