1 EXHIBIT 23.4 CONSENT OF GILBERT LAUSTSEN JUNG ASSOCIATES LTD. We hereby consent to the incorporation by reference in the Annual Report on Form 10-K of Calpine Corporation (the "Company") and to the references to this firm for the Company's estimated Canadian proved reserves contained in the Annual Report on Form 10-K for the year ended December 31, 2000. /s/ GILBERT LAUSTSEN JUNG ASSOCIATES LTD. Calgary, Alberta March 13, 2001