Filed Pursuant to Rule 424(b)(3)
                                             Registration No.  333-66078


         PROSPECTUS SUPPLEMENT TO THE PROSPECTUS DATED NOVEMBER 2, 2001
                                       OF
                               CALPINE CORPORATION
                                   RELATING TO
                       RESALES BY SELLING SECURITY HOLDERS
                                       OF
              ZERO-COUPON CONVERTIBLE DEBENTURES DUE APRIL 30, 2021

         The Prospectus dated November 2, 2001 (the "Prospectus") relating to
resales by selling security holders of Calpine Corporation's Zero-Coupon
Convertible Debentures Due April 30, 2021 is hereby supplemented by amending the
"Selling Holders" section on pages 21-24 thereof by inserting the following as
new selling security holders in the appropriate alphabetical location:


                                                                                                      AGGREGATE
                                                                                                      PRINCIPAL
                                                                AGGREGATE           AGGREGATE         AMOUNT OF
                                                             PRINCIPAL AMOUNT       PRINCIPAL         DEBENTURES
                                                              OF DEBENTURES         AMOUNT OF        BENEFICIALLY
                                                              OWNED PRIOR TO        DEBENTURES        OWNED AFTER
SELLING HOLDER                                                 THE OFFERING       BEING OFFERED      THE OFFERING
--------------                                                 ------------       -------------      ------------
                                                                                            
Continental Assurance Company on behalf of its
Separate Account (E).....................................      $ 2,500,000        $  2,500,000       $         0
Continental Casualty Company.............................       12,500,000          12,500,000                 0
Credit Suisse First Boston Corp..........................        6,025,000           6,025,000                 0
Gaia Offshore Master Fund Ltd. ..........................       13,950,000          13,950,000                 0
JP Morgan Securities.....................................       18,500,000          18,500,000                 0
Transamerica Life Insurance and Annuity Co...............       30,000,000          30,000,000                 0
UBS Warburg LLC..........................................       15,000,000          15,000,000                 0
Van Kampen Harbor Fund...................................        5,000,000           5,000,000                 0
Zurich Institutional Benchmarks Master Fund Limited......          750,000             750,000                 0


         In addition, the Prospectus is further supplemented by changing each of
the entries under the columns "Aggregate Principal Amount of Debentures Owned
Prior to the Offering" and "Aggregate Principal Amount of Debentures Being
Offered" with respect to the selling security holders identified below as set
forth hereunder.



                                                                                                    NEW AGGREGATE
                                                                                                       PRINCIPAL
                                                              NEW AGGREGATE       NEW AGGREGATE        AMOUNT OF
                                                             PRINCIPAL AMOUNT       PRINCIPAL         DEBENTURES
                                                              OF DEBENTURES         AMOUNT OF        BENEFICIALLY
                                                              OWNED PRIOR TO        DEBENTURES        OWNED AFTER
SELLING HOLDER                                                 THE OFFERING       BEING OFFERED      THE OFFERING
--------------                                                 ------------       -------------      ------------
                                                                                            
LDG Limited..............................................     $  1,000,000        $ 1,000,000        $     0
Lyxor Master Fund........................................        5,750,000          5,750,000              0
Lyxor Master Fund........................................        1,050,000          1,050,000              0
Peoples Benefit Life Insurance Company Teamsters.........       11,000,000         11,000,000              0
Silvercreek Limited Partnership..........................        9,320,000          9,320,000              0
Silvercreek II Limited...................................       28,380,000         28,380,000              0
St. AlbansPartners Ltd...................................        9,500,000          9,500,000              0
TQA Master Fund, Ltd.....................................       17,750,000         17,750,000              0
TQA Master Plus Fund, Ltd................................       15,000,000         15,000,000              0



                  Prospectus Supplement dated November 21, 2001