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<CIK>0000916457
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<STREET1>50 WEST SAN FERNANDO ST
<CITY>SAN JOSE
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<TEXT>
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of

                       the Securities Exchange Act of 1934


        Date of Report (Date of earliest event reported): April 24, 2002


                               CALPINE CORPORATION

                            (A Delaware Corporation)

                        Commission File Number: 001-12079

                  I.R.S. Employer Identification No. 77-0212977


                           50 West San Fernando Street

                           San Jose, California 95113

                            Telephone: (408) 995-5115


<PAGE>


ITEM 5.  OTHER EVENTS

     On April 24, 2002, Calpine Corporation  announced that it has increased its
public offering of common stock to 66 million shares and has priced the offering
at $11.50 per share.  Calpine  has granted the  underwriters  an  over-allotment
option for an additional  9.9 million  shares of its common stock,  which may be
exercised for up to 30 days.

ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

(a)      Not applicable.

(b)      Not applicable.

(c)      Exhibits.

         99.0     Press release dated April 24, 2002 - Pricing of Common Stock


SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                               CALPINE CORPORATION


                          By: /s/ Charles B. Clark, Jr.
                              -------------------------
                              Charles B. Clark, Jr.
                      Senior Vice President and Controller
                            Chief Accounting Officer

Date:  April 25, 2002




<PAGE>

EXHIBIT 99.0

NEWS RELEASE                                              CONTACTS: 408/995-5115
                                         Media Relations: Bill Highlander, X1244
                                         Investor Relations: Rick Barraza, X1125


                    CALPINE ANNOUNCES PRICING OF COMMON STOCK

                   Transaction Increased to 66 Million Shares

     (SAN  JOSE,  Calif.)  April  24,  2002 --  Calpine  Corporation  [NYSE:CPN]
announced  today that it has increased its public offering of common stock to 66
million  shares and has priced the  offering  at $11.50 per share.  Calpine  has
granted the underwriters an over-allotment  option for an additional 9.9 million
shares of its common stock, which may be exercised for up to 30 days.

     Proceeds  from the common  stock  offering are expected to be used to repay
debt and for general corporate  purposes.  The offering is scheduled to close on
April 30, 2002.

     This  press  release  shall  not   constitute  an  offer  to  sell  or  the
solicitation of an offer to buy, nor shall there be any sale of these securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.

     The joint bookrunning  managers are Credit Suisse First Boston  Corporation
and Goldman,  Sachs & Co. Bank of America Securities LLC and Deutsche Bank Alex.
Brown are co-managers.

     Copies of the final  prospectus  supplement  can be  obtained  from  either
Credit Suisse First Boston,  Eleven Madison Avenue,  New York, New York 10010 or
Goldman, Sachs & Co., 85 Broad Street, New York, New York 10004.

     Based in San Jose,  Calif.,  Calpine  Corporation is an  independent  power
company that is dedicated to providing customers with clean, efficient,  natural
gas-fired power  generation.  It generates and markets power,  through plants it
develops,  owns and operates, in 29 states in the United States, three provinces
in Canada and the United  Kingdom.  Calpine is the world's  largest  producer of
renewable  geothermal energy, and it owns and markets 1.3 trillion cubic feet of
proved  natural gas  reserves in Canada and the United  States.  The company was
founded in 1984 and is publicly  traded on the New York Stock Exchange under the
symbol  CPN.  For  more  information   about  Calpine,   visit  its  website  at
www.calpine.com.

</TEXT>
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