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 1996 Stock  Incentive 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