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): February 6, 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







ITEM 12.  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

     On February  6, 2004,  the  Registrant  issued the press  release  attached
hereto as Exhibit 99.1 announcing that it is providing a pre-earnings update.


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:  February 6, 2004






EXHIBIT 99.1

NEWS RELEASE

                                                          CONTACTS: 408-995-5115
                                        Media Relations: Katherine Potter, x1168
                                         Investor Relations: Rick Barraza, x1125


                    Calpine Provides 4th Quarter 2003 Update

     (SAN  JOSE,  Calif.)   /PRNewswire-FirstCall/   Feb.  6,  2004  --  Calpine
Corporation [NYSE: CPN], a leading North American power company, today announced
that it is  providing  a  pre-earnings  update.  These  preliminary  results are
unaudited.  Further  detail  will be  provided in the  company's  year-end  2003
earnings conference call scheduled for February 26, 2004.

     On December 31, 2003, liquidity for the company totaled  approximately $2.3
billion.  This included cash and cash equivalents on hand of approximately  $1.0
billion,  the current portion of restricted cash of  approximately  $0.9 billion
and approximately $0.4 billion of borrowing capacity under the company's various
credit facilities.

     EBITDA,  as adjusted  before  non-cash and other  charges is expected to be
approximately  $0.4  billion and $1.6  billion  for the three and twelve  months
ended December 31, 2003, respectively.

     For the quarter ended December 31, 2003, the company is  anticipating  GAAP
fully  diluted  earnings  per share of  approximately  $0.30 per share,  or $125
million of net income. During the period, the company's power plants operated at
a 49% capacity factor  generating over 20 million megawatt hours. Core operating
earnings are expected to be a net loss of  approximately  $0.13 per share,  or a
$54 million  net loss.  On-peak  spark  spreads  during the  quarter  were below
expectations primarily due to milder weather during December.  These lower spark
spreads reduced  expected  earnings by approximately  $19 million,  or $0.05 per
share.

     The results for the quarter include a gain of approximately $0.38 per share
due to a change in accounting principle and certain  mark-to-market  activity, a
gain of  approximately  $0.10  per  share  on the sale of  assets  and a gain of
approximately  $0.09  per  share  for the  purchases  of  outstanding  debt  and
preferred  securities.  Offsetting  these gains,  the company recorded a loss of
approximately  $0.14 per share for other charges related  primarily to equipment
cost and office space  write-downs and costs  associated with the termination of
long-term service contracts.

     Calpine has  rescheduled  its year-end  2003  earnings  conference  call to
February  26,  2004  due to  conflicting  schedules  relating  to  its  recently
announced intent to commence offerings to refinance its CCFC II debt.

     The conference call to discuss the financial and operating  results for the
three and twelve months ended December 31, 2003 will now take place on Thursday,
February 26, 2004, at 8:30 a.m.  Pacific  Standard Time. To participate  via the
teleconference (in listen-only mode), dial  1-888-603-6685 at least five minutes
before the start of the call. In addition, Calpine will simulcast the conference
call live via the  Internet.  The web cast can be accessed and will be available
for 30 days on Calpine's Investor Relations page at www.calpine.com.

     Calpine  Corporation,  celebrating  its 20th  year in  power in 2004,  is a
leading North  American power company  dedicated to providing  electric power to
wholesale and industrial customers from clean, efficient,  natural gas-fired and
geothermal power  facilities.  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.  Calpine is also the  world's  largest  producer  of  renewable
geothermal  energy,  and owns or controls  approximately one trillion cubic feet
equivalent 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
www.calpine.com.


RECONCILIATION OF GAAP NET INCOME TO EBITDA, AS ADJUSTED (1)


                                                                        Three Months Ended   Twelve Months Ended
                                                                         December 31, 2003     December 31, 2003
                                                                         -----------------     -----------------
                                                                            (unaudited)           (unaudited)
(in millions)
                                                                                             
GAAP net income........................................................       $     125            $     288
   Income from unconsolidated investments in power projects............              (9)                 (77)
   Distributions from unconsolidated investments in power projects.....              16                  141
                                                                              ---------            ---------
        Subtotal.......................................................             132                  352

   Interest expense....................................................             231                  728
   1/3 of operating lease expense......................................               9                   37
   Distributions on trust preferred securities.........................              --                   47
   Provision for income taxes..........................................              (2)                  17
   Depreciation, depletion and amortization expense....................             170                  608
   Interest expense, provision for income taxes and depreciation,
    depletion and amortization from discontinued operations............               1                    2
                                                                              ---------            ---------
      EBITDA, as adjusted..............................................       $     541            $   1,791
                                                                              =========            =========

      Non-cash and other charges, net..................................            (110)                (203)
                                                                              ---------            ---------
      EBITDA, as adjusted, for non-cash and other charges (2)..........       $     431            $   1,588
                                                                              =========            =========
<FN>
(1)  This non-GAAP  measure is presented not as a measure of operating  results,
     but rather as a measure of our  ability to service  debt.  It should not be
     construed as an  alternative  to either (i) income from  operations or (ii)
     cash flows from operating  activities to be disclosed in the company's Form
     10-K for the year ended December 31, 2003. It is defined as net income less
     income  from   unconsolidated   investments,   plus  cash   received   from
     unconsolidated investments,  plus provision for tax, plus interest expense,
     plus one-third of operating lease expense, plus depreciation, depletion and
     amortization,   plus  distributions  on  trust  preferred  securities.  The
     interest,  tax and depreciation,  depletion and amortization  components of
     discontinued operations are added back in calculating EBITDA, as adjusted.
(2)  This non-GAAP  measure is presented as a further  refinement of EBITDA,  as
     adjusted, to reflect the company's ability to service debt with cash.
</FN>


THE FINANCIAL  INFORMATION  PRESENTED  ABOVE IS SUBJECT TO ADJUSTMENT  UNTIL THE
COMPANY FILES ITS FORM 10-K WITH THE SECURITIES AND EXCHANGE  COMMISSION FOR THE
YEAR ENDED DECEMBER 31, 2003.