EXHIBIT 23.6

              [Letterhead of Gilbert Laustsen Jung Associated Ltd.]


                                LETTER OF CONSENT

     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  Canadian
proved  reserves  and to the  references  to this firm  included  in such Annual
Report.


                                        Yours Truly,

                                        GILBERT LAUSTSEN JUNG
                                        ASSOCIATES LTD.

                                        /s/ MYRON J. HLADYSHEVSKY
                                        ----------------------------------------
                                        Myron J. Hladyshevsky, P. Eng.
                                        Vice-President


Calgary, Alberta
July 9, 2004