UNITED STATES 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): September 30, 2004


                               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

     Check the  appropriate  box below if the Form 8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

     [ ]  Written communications pursuant to Rule 425 under the Securities Act
          (17 CFR 230.425)

     [ ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act
          (17 CFR 240.14a-12)

     [ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
          Exchange Act (17 CFR 240.14d-2(b))

     [ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
          Exchange Act (17 CFR 240.13e-4(c))





ITEM 8.01.  OTHER EVENTS


NEWS RELEASE                                           CONTACTS:  (408) 995-5115
                                    Media Relations: Katherine Potter, Ext. 1168
                                     Investor Relations: Rick Barraza, Ext. 1125


        Calpine Closes $736 Million Unsecured Convertible Notes Offering

     (SAN JOSE,  Calif.) / PR Newswire -  FirstCall / Sept.  30, 2004 -- Calpine
Corporation  [NYSE:CPN]  today  announced  that it has  received  funding on its
offering of $736 million of  unsecured  convertible  notes due 2014,  offered at
83.9% of par  including  $11  million  from the  exercise  of a  portion  of the
underwriter's  option to cover  over-allotments.  The notes will be  convertible
into cash and into shares of Calpine common stock at a price of $3.85 per share,
which represents a premium of approximately 23% over the New York Stock Exchange
closing price of $3.14 per Calpine common share on September 27, 2004. The notes
will pay interest at a rate of 6%, except that in years three, four and five, in
lieu of interest,  the original  principal  amount of $839 per note will accrete
daily to the full  principal  amount of $1,000 per note at the end of year five.
Upon conversion of the notes, Calpine will deliver the portion of the conversion
value equal to the then  current  principal  amount of the notes in cash and any
additional conversion value in CPN shares. Deutsche Bank Securities Inc. was the
sole book-running manager of the offering.

     Net proceeds from the convertible  notes offering will be used to redeem in
full its HIGH  TIDES I and HIGH TIDES II  preferred  securities,  to  repurchase
approximately  $111.6  million of its HIGH TIDES III  preferred  securities,  to
repurchase other existing  indebtedness  through open-market  purchases,  and as
otherwise permitted by its indentures.

     The company also repurchased approximately $266 million principal amount of
its existing 4 3/4% unsecured convertible notes due 2023 from Deutsche Bank at a
price of approximately  $177 million.  In addition,  Calpine also entered into a
ten-year Share Lending  Agreement with Deutsche Bank under which the company has
loaned to Deutsche Bank 89 million  shares of newly issued  Calpine common stock
in exchange for a loan fee of $.001 per share. The entire 89 million shares have
been sold at a price of $2.75 per share in a registered  public offering for the
account of  Deutsche  Bank that also  closed  today.  Deutsche  Bank has advised
Calpine that it intends to use the proceeds to facilitate  transactions by which
the  purchasers of the  convertible  notes will hedge their  investments  in the
convertible  notes  through  short  sales  or  privately  negotiated  derivative
transactions.

     Calpine does not expect the borrowed shares to be considered issued from an
accounting  standpoint and  accordingly  does not expect the borrowed  shares to
have a dilutive impact on the company's earnings per share.

     Calpine  Corporation  is  a  North  American  power  company  dedicated  to
providing electric power to customers from clean,  efficient,  natural gas-fired
and geothermal  power plants.  The company  generates power at plants it owns or
leases in 21 states in the United States,  three  provinces in Canada and in the
United Kingdom.

     This  news  release  discusses  certain  matters  that  may  be  considered
"forward-looking" statements within the meaning of Section 27A of the Securities
Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934,
as  amended,  including  statements  regarding  the  intent,  belief or  current
expectations  of  Calpine   Corporation  ("the  Company")  and  its  management.
Prospective investors are cautioned that any such forward-looking statements are
not  guarantees  of  future  performance  and  involve  a number  of  risks  and
uncertainties  that could  materially  affect  actual  results  such as, but not
limited to, (i) the timing and extent of  deregulation of energy markets and the
rules and regulations adopted on a transitional basis with respect thereto; (ii)
the timing and extent of changes in  commodity  prices for energy,  particularly
natural gas and electricity; (iii) unscheduled outages of operating plants; (iv)
a competitor's  development of lower cost generating gas-fired power plants; (v)
risks  associated  with  marketing  and selling  power from power  plants in the
newly-competitive  energy market;  (vi) other risks identified from time-to-time
in the  Company's  reports  and  registration  statements  filed  with  the SEC,
including  the risk factors  identified  in its Annual Report on Form 10-K/A for
the year ended  December 31, 2003 and in its  Quarterly  Report on Form 10-Q for
the  quarter  ended  June 30,  2004,  which  can also be found on the  Company's
website at www.calpine.com. All information set forth in this news release is as
of today's date, and the Company undertakes no duty to update this information.





NEWS RELEASE                                           CONTACTS:  (408) 995-5115
                                    Media Relations: Katherine Potter, Ext. 1168
                                     Investor Relations: Rick Barraza, Ext. 1125


            Calpine Closes $785 Million Senior Secured Notes Offering

     (SAN JOSE,  Calif.) / PR Newswire -  FirstCall / Sept.  30, 2004 -- Calpine
Corporation  [NYSE:CPN] today announced that it has received funding on its $785
million offering of 9 5/8% first-priority senior secured notes due 2014, offered
at  99.212%  of par.  These  notes are  secured,  directly  and  indirectly,  by
substantially all of the assets owned by Calpine,  including its natural gas and
power assets and the stock of Calpine Energy Services and other subsidiaries.

     Net  proceeds  from this  offering  will be used to  redeem  or  repurchase
existing indebtedness through open-market purchases,  and as otherwise permitted
by the company's indentures.

     The secured notes were offered in a private placement under Rule 144A, have
not been registered  under the Securities Act of 1933, and may not be offered in
the  United  States  absent   registration  or  an  applicable   exemption  from
registration  requirements.  This press release shall not constitute an offer to
sell or the  solicitation  of an offer to buy.  Securities  laws  applicable  to
private  placements  under Rule 144A limit the extent of information that can be
provided at this time.






                                   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 Corporate Controller,
                                        Chief Accounting Officer

Date: October 1, 2004