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): November 22, 2005

                               CALPINE CORPORATION
             (Exact name of registrant as specified in its charter)

                                    Delaware
                 (State or Other Jurisdiction of Incorporation)

                        Commission File Number: 001-12079

                I.R.S. Employer Identification Number: 77-0212977

                           50 West San Fernando Street
                           San Jose, California 95113
                            Telephone: (408) 995-5115
          (Address of principal executive offices and telephone number)

           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:

     [ ]  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

     On November 22, 2005,  the  Registrant  issued the press  release  attached
hereto as Exhibit 99.1.


ITEM 9.01 --  FINANCIAL STATEMENTS AND EXHIBITS

(a) Financial Statements of Businesses Acquired.

      Not Applicable

(b) Pro Forma Financial Information.

      Not Applicable

(c) Exhibits.

      99.1  Press Release dated November 22, 2005.







                                   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, Controller and
                                       Chief Accounting Officer


Date: November 28, 2005




                                  EXHIBIT INDEX




               Exhibit                Description
               -------   -------------------------------------
               99.1      Press release dated November 22, 2005


================================================================================


EXHIBIT 99.1





                                                                    NEWS RELEASE

Media Relations:  Katherine Potter             Investor Relations:  Karen Bunton
408-792-1168                                                        408-792-1121
kpotter@calpine.com                                          kbunton@calpine.com

            Calpine Provides Update on Court Ruling on Action Against
                        Trustees for Secured Note Holders

              Decision on Timing to Implement Remedy Still Pending

     (SAN JOSE,  Calif.)  /PR  Newswire - First  Call/ Nov.  22,  2005 - Calpine
Corporation  [NYSE:CPN]  provided the following update to today's Delaware Court
of Chancery's  ruling in its action  against The Bank of New York, as collateral
trustee  (Collateral  Trustee) for Calpine's  Senior  Secured Note Holders,  and
Wilmington  Trust Company,  as indenture  trustee for Calpine's First Lien Notes
(First Lien Trustee),  and as indenture  trustee for Calpine's Second Lien Notes
(Second  Lien  Trustee).  In his ruling,  Vice  Chancellor  Leo E.  Strine,  Jr.
concluded that Calpine's use of approximately  $313 million of proceeds from the
sale of its  domestic  gas assets to  purchase  certain  gas  storage  inventory
violated the second lien indenture and use of the proceeds for similar contracts
is  impermissible.  Approximately  $400 million  from the sale of the  company's
domestic  gas assets  remains in an account at the Bank of New York.  Calpine is
still  permitted to use its natural gas asset sale proceeds to purchase  certain
natural gas assets or repurchase  certain  secured debt in  accordance  with the
company's indentures.

     Vice Chancellor Strine has not ruled on the appropriate timing to implement
the remedy for his decision and noted the following:

          >>   The First Lien Trustee lacks standing to request a remedy.

          >>   The Second Lien  Trustee's  tardiness  warrants a deferral of the
               restorative  remedy  determination  and delayed  decision on when
               restoration of the $313 million plus some modest interest will be
               returned  to  Calpine's  account  at the  Bank of New  York.  The
               primary question is when restoration has to occur and what timing
               flexibility  Calpine will have to devote those restored  proceeds
               to the purchase of proper  Designated Assets or First Lien Notes.
               The   lateness  of  the  Second   Lien   Trustee  in  filing  the
               counterclaims  will  be  taken  into  account  in  that  remedial
               calculus.

          >>   The question of remedy is deferred until Calpine has answered the
               Second  Lien  Trustee's  counterclaims  (which  it  shall  do  by
               November 28, 2005) and conferred with the Second Lien Trustee. In
               the absence of  agreement  between the parties as to remedy,  the
               parties must present expedited submissions addressing the form of
               relief by  November  30,  2005,  and file  replies  the next day,
               December 1, 2005.

          >>   Calpine  shall  indemnify  the First Lien  Trustee and the Second
               Lien Trustee for their  reasonable  expenses  upon  submission of
               proper  documentation  and the  Collateral  Trustee's  motion  to
               dismiss is denied.

     A  major  power  company,   Calpine  Corporation   supplies  customers  and
communities  with  electricity  from clean,  efficient,  natural  gas-fired  and
geothermal power plants. Calpine owns, leases and operates integrated systems of
plants in 21 U.S. states and in three Canadian provinces and is building a plant
in Mexico. It is included in the S&P 500 Index and is publicly traded on the New
York  Stock  Exchange  under  the  symbol  CPN.  For  more  information,   visit
http://www.calpine.com.

     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) commercial operations of new plants that may
be delayed or prevented because of various  development and construction  risks,
such as a failure  to obtain  the  necessary  permits  to  operate,  failure  of
third-party  contractors to perform their contractual  obligations or failure to
obtain  financing on acceptable  terms;  (iv)  unscheduled  outages of operating
plants; (v) a competitor's  development of lower cost generating gas-fired power
plants; (vi) risks associated with marketing and selling power from power plants
in the newly-competitive  energy market; (vii) the successful exploitation of an
oil or gas resource  that  ultimately  depends upon the geology of the resource,
the total  amount  and costs to  develop  recoverable  reserves  and  operations
factors  relating to the  extraction  of natural gas;  (viii) the effects on the
Company's  business  resulting  from reduced  liquidity in the trading and power
industry;  (ix) the  Company's  ability to access the capital  markets or obtain
bank financing on attractive  terms;  (x) the direct or indirect  effects on the
Company's business of a lowering of its credit rating (or actions it may take in
response to changing credit rating criteria),  including,  increased  collateral
requirements,  refusal by the Company's  current or potential  counterparties to
enter into transactions with it and its inability to obtain credit or capital in
desired  amounts or on favorable  terms;  and (xi) 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 for
the year ended December 31, 2004 , and in its Quarterly  Report on Form 10-Q for
the quarter ended  September 30, 2005,  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.


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