UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              _____________________


                                    FORM 10-Q



[ X ]  Quarterly  Report  Pursuant  to  Section  13 or 15(d)  of the  Securities
Exchange Act of 1934 for the quarter ended March 31, 1999


[ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange
Act  of  1934  for  the  transition   period  from  _______________________   to
______________________


                        Commission File Number: 033-73160


                               CALPINE CORPORATION

                            (A Delaware Corporation)

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



                           50 West San Fernando Street
                           San Jose, California 95113
                            Telephone: (408) 995-5115




Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                                Yes [ X ] No [ ]

Indicate the number of shares outstanding of each of the Registrant's classes of
common stock, as of the latest  practicable  date: $0.001 par value Common Stock
27,169,147 shares outstanding on May 11, 1999.


                                                                   

 
                      CALPINE CORPORATION AND SUBSIDIARIES
                               Report on Form 10-Q
                      For the Quarter Ended March 31, 1999

                                      INDEX

PART I.  FINANCIAL INFORMATION                                       Page No.

         ITEM 1.  Financial Statements

         Consolidated Balance Sheets
         March 31, 1999 and December 31, 1998 .......................    3

         Consolidated Statements of Operations
         Three Months Ended March 31, 1999 and 1998 .................    4

         Consolidated Statements of Cash Flows
         Three Months Ended March 31, 1999 and 1998 .................    5

         Notes to Consolidated Financial Statements .................    6

         ITEM 2.  Management's Discussion and Analysis of Financial
         Condition and Results of Operations ........................   13

PART II..OTHER INFORMATION

         ITEM 1.  Legal Proceedings .................................   23

         ITEM 2.  Change in Securities ..............................   24

         ITEM 3.  Defaults Upon Senior Securities ...................   24

         ITEM 4.  Submission of Matters to a Vote of Security Holders   24

         ITEM 5.  Other Information .................................   24

         ITEM 6.  Exhibits and Reports on Form 8-K ..................   24


Signatures ..........................................................   28




                                       2


                                                                  
PART 1.    FINANCIAL STATEMENTS

                      CALPINE CORPORATION AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS
                      March 31, 1999 and December 31, 1998
                                 (in thousands)



                                                                          March 31,      December 31,
                                                                          1999           1998
                                                                          -----------    ------------
                                                                          (unaudited)
                                                                                      

                                     ASSETS
Current assets:
  Cash and cash equivalents ............................................   $  698,957   $   96,532
  Accounts receivable from related parties .............................        2,748        4,115
  Accounts receivable ..................................................       68,024       79,743
  Inventories ..........................................................       15,268       14,194
  Other current assets .................................................       14,702       14,919
                                                                           ----------   ----------
         Total current assets .........................................      799,699       209,503
                                                                           ----------   ----------

Property, plant and equipment, net .....................................    1,279,308    1,094,303
Investments in power projects ..........................................      239,172      221,509
Project development costs ..............................................       33,032       17,001
Collateral securities, net of current portion ..........................       85,531       86,920
Notes receivable from related parties ..................................       15,624       10,899
Restricted cash ........................................................       21,244       14,454
Deferred financing costs ...............................................       32,131       22,789
Other assets ...........................................................       56,813       51,568
                                                                           ----------   ----------
         Total assets .................................................   $2,562,554    $1,728,946
                                                                           ==========   ==========
                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Non-recourse project financing, current portion ......................   $    5,450   $    5,450
  Accounts payable .....................................................       50,782       53,190
  Accrued interest payable .............................................       30,165       25,600
  Other current liabilities ............................................       35,340       38,339
                                                                           ----------   ----------
          Total current liabilities ....................................      121,737      122,579
                                                                           ----------   ----------

Non-recourse project financing, net of current portion .................      115,150      114,190
Notes payable ..........................................................       47,570           --
Senior notes ...........................................................    1,551,348      951,750
Deferred income taxes, net .............................................      162,061      159,788
Deferred lease incentive ...............................................       66,922       67,814
Other liabilities ......................................................       27,461       25,859
                                                                           ----------   ----------
          Total liabilities ............................................    2,092,249    1,441,980
                                                                           ----------   ----------
Stockholders' equity:
  Preferred stock, $0.001 par value per share:
      authorized 10,000,000 shares, none issued
      and outstanding in 1999 and 1998 .................................           --           --
  Common stock, $0.001 par value per share:
      authorized 100,000,000 shares; issued and
      outstanding 26,267,297 in 1999 and
      20,161,581 in 1998 ...............................................           26           20
  Additional paid-in capital ...........................................      348,357      168,874
  Retained earnings ....................................................      121,922      118,072
                                                                           ----------   ----------
          Total stockholders' equity ...................................      470,305      286,966
                                                                           ----------   ----------
          Total liabilities and stockholders' equity ...................   $2,562,554   $1,728,946
                                                                           ==========   ==========


The  accompanying  notes are an integral  part of these  consolidated  financial
statements.

                                       3

                     CALPINE CORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF OPERATIONS
               For the Three Months Ended March 31, 1999 and 1998
                    (in thousands, except per share amounts)
                                   (unaudited)



                                                                Three Months Ended
                                                                     March 31,
                                                             ----------------------
                                                                 1999         1998
                                                             ---------    ---------
                                                                   

Revenue:
  Electricity and steam sales ............................   $ 128,026    $  43,390
  Service contract revenue from related parties ..........       6,772        5,481
  Income from unconsolidated investments in power projects      10,812        3,754
  Interest income on loans to power projects .............         303        2,520
                                                             ---------    ---------
     Total revenue .......................................     145,913       55,145
                                                             ---------    ---------
Cost of revenue:
  Plant operating expenses ...............................      23,136       10,272
  Fuel expense ...........................................      53,937        5,671
  Depreciation ...........................................      18,979       12,350
  Production royalties ...................................       2,417        2,872
  Operating lease expenses ...............................       5,593        3,308
  Service contract expenses ..............................       5,445        4,896
                                                             ---------    ---------
     Total cost of revenue ...............................     109,507       39,369
                                                             ---------    ---------

Gross profit .............................................      36,406       15,776

Project development expenses .............................       1,956        1,681
General and administrative expenses ......................      10,031        5,236
                                                             ---------    ---------
     Income from operations ..............................      24,419        8,859

Interest expense .........................................      21,027       18,523
Interest income ..........................................      (2,778)      (2,363)
Other income .............................................        (163)        (401)
                                                             ---------    ---------
     Income (loss) before provision for income taxes .....       6,333       (6,900)

Provision for (benefit from) income taxes ................       2,483       (3,843)
                                                             ---------    ---------
     Net income (loss) ...................................   $   3,850    $  (3,057)
                                                             =========    =========

Basic earnings per common share:
  Weighted average shares of common stock ................      20,595       20,087
  Basic earnings per share ...............................   $    0.19    $   (0.15)
Diluted earnings per common share:
  Weighted average shares of common stock ................      21,945       20,087
  Diluted earnings per share .............................   $    0.18    $   (0.15)


The  accompanying  notes are an integral  part of these  consolidated  financial
statements.



                                       4


                      CALPINE CORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
               For the Three Months Ended March 31, 1999 and 1998
                                 (in thousands)



                                                                 Three Months Ended 
                                                                      March 31,
                                                               ----------------------
                                                                  1999          1998
                                                               ---------    ---------    
                                                                      
Cash flows from operating activities:
  Net income (loss) ........................................   $   3,850    $  (3,057)
  Adjustments to reconcile net income (loss) to net cash
     provided by operating activities:
     Depreciation and amortization .........................      19,379       12,538
     Deferred income taxes, net ............................       2,273       (3,793)
     Income from unconsolidated investments in power projects    (10,812)      (3,754)
     Distributions from unconsolidated power projects ......      10,272        5,962
     Change in operating assets and liabilities:
       Accounts receivable .................................      13,086       20,559
       Inventories .........................................        (324)         429
       Other current assets ................................       1,243        2,355
       Other assets ........................................      (6,414)      (8,628)
       Accounts payable and accrued expenses ...............        (824)     (19,940)
       Other liabilities ...................................       1,650          874
                                                               ---------    ---------
          Net cash provided by operating activities ........      33,379        3,545
                                                               ---------    ---------
Cash flows from investing activities:
  Acquisition of property, plant and equipment .............    (104,350)     (12,873)
  Acquisitions .............................................    (116,957)    (157,108)
  Decrease in notes receivable .............................        --         13,814
  Maturities of collateral securities ......................       1,850        4,480
  Project development costs ................................     (17,629)      (2,912)
  Increase in restricted cash ..............................      (6,789)         (76)
  Other ....................................................      (4,725)         419
                                                               ---------    ---------
          Net cash used in investing activities ............    (248,600)    (154,256)
                                                               ---------    ---------
Cash flows from financing activities:
  Borrowings from non-recourse project financing ...........     176,155       44,450
  Repayments of non-recourse project financing .............    (127,625)    (140,935)
  Proceeds from issuance of Senior Notes ...................     600,000      300,000
  Proceeds from issuance of common stock ...................     177,900          421
  Financing costs ..........................................      (8,784)      (4,778)
                                                               ---------    ---------
          Net cash provided by financing activities ........     817,646      199,158
                                                               ---------    ---------

Net increase in cash and cash equivalents ..................     602,425       48,447
Cash and cash equivalents, beginning of period .............      96,532       48,513
                                                               ---------    ---------
Cash and cash equivalents, end of period ...................   $ 698,957    $  96,960
                                                               =========    =========
Cash paid during the period for:
  Interest .................................................   $  19,365    $  23,034
  Income taxes .............................................   $   1,175    $      --


The  accompanying  notes are an integral  part of these  consolidated  financial
statements. 



                                       5


                      CALPINE CORPORATION AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 1999


1.       Organization and Operation of the Company

Calpine Corporation, a Delaware corporation, and subsidiaries (collectively, the
"Company") is engaged in the development,  acquisition, ownership, and operation
of power  generation  facilities and the sale of  electricity  and steam in the 
United States and selected  international  markets. The Company has ownership
interests  in  and  operates  gas-fired   cogeneration   facilities, geothermal 
steam fields and geothermal  power generation  facilities in northern 
California,  Washington,  Texas and various locations on the East Coast. Each of
the generation  facilities  produces  electricity which is marketed to utilities
and other third  party  purchasers.  Thermal  energy  produced by the  gas-fired
cogeneration facilities is primarily sold to governmental and industrial users.

2.       Summary of Significant Accounting Policies

Basis of Interim Presentation -- The accompanying interim consolidated financial
statements  of the Company have been  prepared by the Company,  without audit by
independent  public  accountants,  pursuant to the rules and  regulations of the
Securities  and  Exchange  Commission.   In  the  opinion  of  management,   the
consolidated  financial statements include the adjustments  necessary to present
fairly the information required to be set forth therein. Certain information and
note  disclosures   normally  included  in  financial   statements  prepared  in
accordance with generally accepted accounting  principles have been condensed or
omitted  from  these  statements  pursuant  to such rules and  regulations  and,
accordingly,  should  be read  in  conjunction  with  the  audited  consolidated
financial  statements of the Company  included in the Company's annual report on
Form 10-K for the year ended December 31, 1998. The results for interim  periods
are not necessarily indicative of the results for the entire year.

Capitalized  interest -- The Company capitalizes interest on projects during the
construction  period.  For the three months  ended March 31, 1999 and 1998,  the
Company capitalized $3.8 million and $2.0 million,  respectively, of interest in
connection with the construction of power plants.

Derivative financial  instruments -- The Company engages in activities to manage
risks  associated with changes in interest  rates.  The Company has entered into
swap agreements to reduce  exposure to interest rate  fluctuations in connection
with certain debt  commitments.  The instruments' cash flows mirror those of the
underlying  exposures.  Unrealized  gains and losses relating to the instruments
are being  deferred  over the lives of the  contracts.  The premiums paid on the
instruments, as measured at inception, are being amortized over their respective
lives as components of interest  expense.  Any gains or losses realized upon the
early  termination  of these  instruments  are deferred and recognized in income
over the remaining life of the existing swap.

New  Accounting  Pronouncements  --  In  June  1997,  the  Financial  Accounting
Standards  Board ("FASB")  issued  Statement of Financial  Accounting  Standards
("SFAS")  No. 131,  "Disclosures  about  Segments of an  Enterprise  and Related
Information."  This Statement  establishes  the reporting of  information  about
operating segments in annual financial  statements and requires that enterprises
report  selected  information  about  operating  segments  in interim  financial
reports to  shareholders.  SFAS No. 131 also  establishes  standards for related
disclosures  about products and services,  geographic areas and major customers.
SFAS No. 131 is effective for fiscal years  beginning  after  December 15, 1997.
During  1998,  the  Company  started  the  process  of  decentralization  of its
operations and completed this process during the first quarter of calendar 1999.
The Company has adopted this pronouncement beginning January 1999 (see Note 5).

In June  1998,  FASB  also  issued  SFAS No.  133,  "Accounting  for  Derivative
Instruments and Hedging Activities".  This Statement establishes  accounting and
reporting  standards,  requiring every derivative  instrument be recorded in the
balance sheet as either an asset or liability measured at its fair value. This



                                       6


                      CALPINE CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
                                 March 31, 1999
                           

statement  requires  that changes in the  derivative's  fair value be recognized
currently in earnings unless specific hedge accounting criteria are met. Special
accounting  for  qualifying  hedges  allows a  derivative's  gains and losses to
offset related results on the hedged item in the income  statement,  and require
that a company formally  document,  designate,  and assess the  effectiveness of
transactions that receive hedge accounting.

SFAS No. 133 is effective for fiscal years  beginning  after June 15, 1999. This
Statement must be applied to derivative  instruments  and to certain  derivative
instruments  embedded  in  hybrid  contracts  that  were  issued,  acquired,  or
substantively modified after December 31, 1997. The Company has not yet analyzed
the impact of  adopting  SFAS No. 133 on the  financial  statements  and has not
determined  the timing of or method of the  adoption of SFAS No.  133.  However,
this Statement could increase volatility in earnings.

Reclassifications  --  Prior  period  amounts  in  the  consolidated   financial
statements  have  been  reclassified  where  necessary  to  conform  to the 1999
presentation.

3.       Property, Plant and Equipment

Property, plant and equipment consisted of the following (in thousands):



                                                      March 31,     December 31,
                                                      1999          1998
                                                     -----------    -----------
                                                             

Geothermal properties .............................  $   412,604    $   312,139
Buildings, machinery and equipment ................      670,618        653,865
Power sales agreements ............................      145,957        145,957
Gas contracts .....................................      122,561        122,561
Other assets ......................................       20,593         18,955
                                                     -----------    -----------
                                                       1,372,333      1,253,477
Less accumulated depreciation and amortization ....     (215,660)      (203,984)
                                                     -----------    -----------
                                                       1,156,673      1,049,493
Land ..............................................        1,590          1,590
Construction in progress ..........................      121,045         43,220
                                                     -----------    -----------
Property, plant and equipment, net ................  $ 1,279,308    $ 1,094,303
                                                     ===========    ===========


Construction in progress  includes costs primarily  attributable to the purchase
of  gas-fired  turbines for  projects  currently  under development.

4.       Results of Unconsolidated Investments in Power Projects

The Company has unconsolidated investments in power projects which are accounted
for under the equity method. Investments in less-than-majority-owned  affiliates
and the nature and extent of these  investments  change over time.  The combined
results of  operations  and  financial  positions of the  Company's equity-basis
affiliates are summarized below (in thousands):



                                                        Three Months Ended 
                                                             March 31,
                                                       1999        1998
                                                       ----------  -----------
                                                                

Condensed Statement of Operations:
  Revenue ..........................................   $  193,133   $  190,815
  Net income .......................................   $   47,491   $   13,236
  Company's share of net income ....................   $   10,812   $    3,754

                                                       March 31,   December 31,
                                                       1999        1998
                                                       ----------  -----------
Condensed Balance Sheet:
  Assets ...........................................   $1,338,508   $1,274,202
  Liabilities ......................................   $1,043,010   $1,000,812


The following  details the Company's income from  investments in  unconsolidated
power projects and the service  contract revenue recorded by the Company related
to those power projects (in thousands):



                                       7


                      CALPINE CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
                                 March 31, 1999



                                                                            Service
                                      Ownership       Income            Contract Revenue
                                      Interest      For the three months ended March 31,
                                                 1999       1998       1999      1998
                                                 -------    -------    -------   -------                                           
                                                                  
Sumas Power Plant .................        --    $ 8,243    $   978    $   932   $   373
Gordonsville Power Plant ..........        50%     1,345      1,367         --        --
Lockport Power Plant ..............      11.4%     1,068        938         --        --
Texas Cogeneration Company ........        --         --      2,922         --     1,613
Bayonne Power Plant ...............       7.5%     1,156       --           --        --
Kennedy International Airport Power        50%    (1,038)    (2,192)       239        --
Plant
Aidlin Power Plant ................         5%        88        111        663       802
Stony Brook Power Plant ...........        50%       (78)      (119)       239        --
Agnews Power Plant ................        20%        65        (88)       430       437
Auburndale Power Plant ............        50%       (37)      (163)        --        --
                                                 -------    -------    -------   -------
          Total ...................              $10,812    $ 3,754    $ 2,503   $ 3,225
                                                 =======    =======    =======   =======


5.       Information by Operating Segment

The Company,  which operates in a single industry segment,  develops,  acquires,
owns and operates power  generation  facilities for the sale of electricity  and
steam within the United  States and selected  international  markets.  Operating
segments  are  defined as  components  of an  enterprise  about  which  separate
financial  information is available and that is evaluated regularly by the chief
operating  decision maker, or decision making group, in deciding how to allocate
resources  and  in  assessing   performance.   The  Company's   chief  operating
decision-making  group is  comprised  of the Chief  Executive  Officer and other
senior management.

The  Company's  reportable  segments are  strategic  regions  which  include the
Western,  Central,  and Eastern Regions along with Corporate  Headquarters.  The
Company  in early  1998,  determined  that in  order  to meet  the  needs of its
customers as well as take advantage of deregulated markets in the United States,
it would  need to manage its  business  geographically.  These  four  reportable
segments have been  determined by  geographical  boundaries as well as where the
Company is currently operating power generation  facilities,  or has development
projects and/or projects in construction.  The Western  Region's  boundaries are
from Washington State to the New Mexico border, including selected international
markets. The Central Region is primarily responsible for the Texas operations as
well as  development  projects  throughout  the  Midwest.  The Eastern  Region's
primary area of  responsibility is for the Eastern states from Florida to Maine,
with the Corporate  Headquarters  primarily  responsible  for overall  strategic
decision making and construction activities.

The Company evaluates  performance  based upon several criteria  including after
tax profits,  which is identified as segment net income. The accounting policies
of the  reportable  segments  are the same as those  described in the summary of
significant  accounting  policies.  The financial results for the Company's four
reportable  segments have been prepared on a basis consistent with the manner in
which the Company's management  internally  disaggregates  financial information
for the purposes of assisting in making internal  operating  decisions.  In this
regard, certain common expenses have been allocated less precisely than would be
required for the stand-alone  information  prepared in accordance with generally
accepted  accounting  principles.  Revenue attributed to the geographic areas is
based on the location of the customer.


                                       8



                      CALPINE CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
                                 March 31, 1999



(in thousands)
                                            Western         Central         Eastern       Corporate         Total
Reportable Segments                          Region          Region         Region       Headquarters      Segments
- --------------------------------------------------------------------------------------------------------------------
Three Months Ended March 31, 1999
- --------------------------------------------------------------------------------------------------------------------
                                                                                          

Electricity and steam sales              $     39,858    $    80,317    $      7,851    $          --   $    128,026
Income from unconsolidated investments          8,396          1,156           1,260               --         10,812
Other revenues                                  6,160            437             478               --          7,075
                                         ------------    -----------    ------------    -------------   ------------
Segment total revenues                         54,414         81,910           9,589               --        145,913

Depreciation and amortization                   9,867          8,467             645               --         18,979
Other costs of revenue                         36,393         48,367           5,868             (100)        90,528
                                         ------------    -----------    ------------      -----------   ------------
Gross operating profit                          8,154         25,076           3,076              100         36,406

Project development expenses                      131            181             160            1,484          1,956
General and administrative expenses             1,520            964             382            7,165         10,031
                                         ------------    -----------    ------------      -----------   ------------
Income (loss) from operations                   6,503         23,931           2,534           (8,549)        24,419

Interest expense (1)                            2,583            331          (2,363)          20,476         21,027
Interest income                                (1,886)          (103)            (42)            (747)        (2,778)
Other (income) expense                            (79)            49             (22)            (111)          (163)
                                         ------------    -----------    ------------      -----------   ------------
Income (loss) before provision for                                                                                     
income taxes                                    5,885         23,654           4,961          (28,167)         6,333

Provision for (benefit from) income taxes       2,235          8,972             446           (9,170)         2,483
                                         ------------    -----------    ------------    -------------   ------------
Segment net income (loss)                $      3,650    $    14,682    $      4,515    $     (18,997)  $      3,850
                                         ============    ===========    ============    =============   ============

Segment assets                           $    637,721    $   248,679    $    203,998    $   1,472,156   $  2,562,554
Capital expenditures (2)                        2,676         23,497              99               --         26,272
Construction of new projects (2)                   --         48,872              --           29,206         78,078

- --------------------------------------------------------------------------------------------------------------------
Three Months Ended March 31, 1998
- --------------------------------------------------------------------------------------------------------------------

Electricity and steam sales              $     38,490    $        --    $      4,900    $          --   $     43,390
Income from unconsolidated investments          1,000          2,922            (168)              --          3,754
Other revenues                                  1,951          4,134           1,916               --          8,001
                                         ------------    -----------    ------------    -------------   ------------
Segment total revenues                         41,441          7,056           6,648               --         55,145

Depreciation and amortization                  12,077             --             273               --         12,350
Other costs of revenue                         20,149          1,277           5,593               --         27,019
                                         ------------    -----------    ------------      -----------   ------------
Gross operating profit                          9,215          5,779             782               --         15,776

Project development expenses                       --             --              --            1,681          1,681
General and administrative expenses               629            149               5            4,453          5,236
                                         ------------    -----------    ------------      -----------   ------------
Income (loss) from operations                   8,586          5,630             777           (6,134)         8,859

Interest expense                                4,042            788              67           13,626         18,523
Interest income                                (1,859)          (125)           (285)             (94)        (2,363)
Other (income) expense                             --             --              --             (401)          (401)
                                         ------------    -----------    ------------      -----------   ------------
Income (loss) before provision for                                                                                     
income taxes                                    6,403          4,967             995          (19,265)        (6,900)

Provision for (benefit from) income taxes       2,554          1,826             380           (8,603)        (3,843)
                                         ------------    -----------    ------------      -----------   ------------
Segment net income (loss)                $      3,849    $     3,141    $        615    $     (10,662)  $     (3,057)
                                         ============    ===========    ============    =============   ============

Segment assets                           $    615,694    $   169,764    $     14,549    $     878,090   $  1,678,097
Capital expenditures (2)                        3,740             --              --               --          3,740
Construction of new projects (2)                   --          6,892              --            2,241          9,133


(1)-- Interest expense for the Eastern Region reflects interest  capitalized for
the three months ended March 31, 1999.

(2)-- Capital  expenditures  are defined as capital  purchases for the Company's
existing  portfolio of power plants.  Construction of new projects is defined as
capital purchases related to the development of new power plants.

6.       Common Stock and Senior Notes Offering

On March 26, 1999, the Company  completed a public offering of 6,000,000  shares
of its common  stock at $31.00  per share.  The net  proceeds  from this  public
offering are estimated to be  approximately  $177.9  million.  Additionally,  in
April 1999,  the Company sold an  additional  900,000  shares of common stock at




                                       9


                     CALPINE CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
                                 March 31, 1999

$31.00 per share  pursuant to the exercise of the  underwriters'  over-allotment
option for net proceeds of approximately $26.7 million.

On March 29, 1999,  the Company  completed a public  offering of $250 million of
its 7-5/8% Senior Notes Due 2006  ("Senior  Notes Due 2006") and $350 million of
its 7-3/4% Senior Notes Due 2009 ("Senior Notes Due 2009"). The Senior Notes due
2006 bear  interest at 7-5/8% per year,  payable  semi-annually  on April 15 and
October 15 each year and mature on April 15, 2006. The Senior Notes due 2006 are
not  redeemable  prior to maturity.  The Senior Notes due 2009 bear  interest at
7-3/4% per year, payable  semi-annually on April 15 and October 15 each year and
mature on April 15, 2009. The Senior Notes due 2009 are not redeemable  prior to
maturity.  After deducting  underwriting discounts and expenses of the offering,
the aggregate net proceeds from the sale of the Senior Notes were  approximately
$589.6 million.

The net proceeds from the sale of the common  stock,  the Senior Notes Due 2006,
and the Senior  Notes Due 2009 will be used as  follows:  (i) $119.6  million to
refinance indebtedness relating to the Gilroy Power Plant, (ii) $77.6 million to
repay  indebtedness  under a bridge  facility  provided by Credit  Suisse  First
Boston to finance a portion of the  purchase  price to acquire the steam  fields
that service the Sonoma Power Plants,  (iii) $50.0 million to repay  outstanding
borrowings  under our  revolving  credit  facility,  $23.4  million of which was
incurred to finance a portion of the steam  fields that service the Sonoma Power
Plants,  (iv) $25.0  million to complete  the  expansion of the Clear Lake Power
Plant,  and (v)  approximately  $400.0  million  to  finance a portion  of power
generation  facilities  currently under  construction and the projects currently
under  development.  Transaction  costs  incurred in connection  with the Senior
Notes  offering  were recorded as a deferred  charge and are amortized  over the
respective  lives of the  Senior  Notes Due 2006 and the  Senior  Notes Due 2009
using the effective interest rate method.

7.       Acquisitions

Unocal Transaction

On March 19, 1999, the Company completed the acquisition of Unocal Corporation's
Geysers geothermal steam fields in northern California for approximately  $102.1
million.  The steam  fields fuel  Pacific Gas & Electric  Company's  ("PG&E") 12
Sonoma  County power  plants,  totaling 544  megawatts of capacity.  The Company
purchased these plants on May 7, 1999 (see Note 12).

8.       Non-recourse Project Financing

On January 4, 1999, the Company entered into a Credit  Agreement with ING (U.S.)
Capital LLC to provide up to $265.0 million of  non-recourse  project  financing
for the construction of the Pasadena facility  expansion.  As of March 31, 1999,
$47.6 million was outstanding  under the agreement.  The outstanding  loan bears
interest at ING's base rate or at LIBOR plus an applicable margin and is payable
quarterly.  The loan  matures 15 years  after  completion  of  construction.  In
connection with the Credit  Agreement,  the Company entered into a $10.0 million
letter of credit  facility.  At March 31, 1999,  there were no letters of credit
outstanding under the facility.

9.       Revolving Credit Facility and Line of Credit

The Company  maintains a credit facility of $100.0  million,  which is available
through a consortium of commercial  lending  institutions  with The Bank of Nova
Scotia as agent.  A maximum  of $50.0  million  of the  credit  facility  may be
allocated to letters of credit. At March 31, 1999, the Company had no borrowings
and $21.9 million of letters of credit  outstanding  under the credit  facility.
Borrowings  bear  interest  at The  Bank  of Nova  Scotia's  base  rate  plus an
applicable margin or at LIBOR plus an applicable margin. Interest is paid on the
last day of each interest period for such loans, at least quarterly.  The credit
facility specifies that the Company maintain certain  covenants,  with which the
Company was in compliance  as of March 31,



                                       10


                      CALPINE CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
                                 March 31, 1999

1999. Commitment fees related to this line of credit are charged based on 0.375%
of committed unused credit.

At March  31,  1999,  the  Company  had a loan  facility  with  Union  Bank with
available  borrowings  totaling $1.1 million.  As of March 31, 1999, the Company
had no  borrowings  and  $74,000  of  letters  of credit  outstanding  under the
facility.

Additionally,  the Company had a $12.0 million letter of credit outstanding with
The Bank of Nova Scotia to secure performance of the Clear Lake Power Plant.

10.      Earnings per Share

Basic  earnings per share were computed by dividing net earnings by the weighted
average number of common shares  outstanding for the period. The dilutive effect
of the potential  exercise of outstanding  options to purchase  shares of common
stock is calculated using the treasury stock method. The reconciliation of basic
earnings per share to diluted earnings per share is shown in the following table
(dollars in thousands except share data):



 Periods Ended March 31,                                   1999                                   1998
                                             ---------------------------------    ---------------------------------
                                                Net                                   Net                    
                                              Income       Shares        EPS         Income       Shares        EPS
- -------------------------------------------------------------------------------------------------------------------
 Three Months:
 Basic earnings per common share:
                                                                                          
                                                                                                        
   Basic earnings per share                  $   3,850       20,595    $  0.19     $   (3,057)    20,087    $ (0.15)
                                             =========                 =======     ===========              ========
   Common shares issuable upon                                                                                         
    Exercise of stock options using                                                                                    
     treasury stock method                                    1,350                                   --              
                                                             ------                               ------
 Diluted earnings per common share
                                                                                                       
   Diluted earnings per share                $   3,850       21,945    $  0.18     $   (3,057)    20,087    $ (0.15)
                                             =========       ======    =======     ===========    ======    ========


Unexercised  employee stock options to purchase 23,000 and 2.1 million shares of
the  Company's  common  stock  during the three  months ended March 31, 1999 and
1998,  respectively,  were not  included in the  computation  of diluted  shares
outstanding because such inclusion would be anti-dilutive.

11.      Commitments and Contingencies

Production  Royalties  and Leases -- The  Company  is  committed  under  several
geothermal  leases  and  right-of-way,  easement  and  surface  agreements.  The
geothermal  leases generally  provide for royalties based on production  revenue
with reductions for property taxes paid. The right-of-way,  easement and surface
agreements  are  based on flat  rates and are not  material.  Under the terms of
certain geothermal leases, royalties accrue at rates ranging from 7% to 12.5% of
steam  and  effluent  revenue.  Certain  properties  also have net  profits  and
overriding royalty interests ranging from approximately  1.45% to 28%, which are
in  addition  to the land  royalties.  Most  lease  agreements  contain  clauses
providing for minimum lease payments to lessors if production temporarily ceases
or if production falls below a specified level.

The  Company  leases  its  corporate  offices  and  regional  offices in Boston,
Massachusetts,  Houston, Texas, San Jose, California and Pleasanton, California,
under noncancellable operating  leases  expiring  through 2002.  Future  minimum
lease  payments  under  these leases for the remainder of 1999 are approximately
$1.5 million.

Natural  Gas  Purchases  -- The  Company  enters into  short-term  gas  purchase
contracts  with  third  parties  to  supply  gas to its  gas-fired  cogeneration
projects.

Capital  expenditures  -- At March 31, 1999,  the Company is under contract with
Siemens  Westinghouse  Power  Corporation  for a total of $814.9 million for the
purchase of 23 turbines related to 11 development projects. Approximate payments
related to these turbines is $369.1 million for 1999.


                                       11


                      CALPINE CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)
                                 March 31, 1999

Litigation

On September 30, 1997, a lawsuit was filed by Indeck North  American  Power Fund
("Indeck") in the Circuit Court of Cook County, Illinois against Norweb plc. and
certain other parties,  including the Company. Some of Indeck's claims relate to
Calpine  Gordonsville,  Inc.'s  acquisition  of a 50%  interest in  Gordonsville
Energy  L.P.  from  Northern  Hydro  Limited  and  Calpine  Auburndale,   Inc.'s
acquisition  of a 50%  interest  in  Auburndale  Power  Plant  Partners  Limited
Partnership  from Norweb Power  Services  (No. 1) Limited.  Indeck  claimed that
Calpine Gordonsville,  Inc., Calpine Auburndale, Inc. and the Company tortiously
interfered  with  Indeck's  contractual  rights to purchase  such  interests and
conspired  with other  parties  to do so.  Indeck is  seeking  $25.0  million in
compensatory  damages,  $25.0 million in punitive  damages,  and the recovery of
attorneys' fees and costs. In April 1999, the court granted Calpine Gordonsville
and  Calpine  Auburndale's  motions to dismiss  with  prejudice.  The Company is
unable to predict the outcome of these proceedings.

There is currently a dispute between  Texas-New Mexico Power Company ("TNP") and
Clear Lake Cogeneration Limited Partnership  ("CLC"),  which owns the Clear Lake
Power Plant,  regarding  certain  costs and other  amounts that TNP has withheld
from payments due under the power sales agreement from August 1997 until October
1998. TNP has withheld  approximately $450,000 per month related to transmission
charges.  In October 1997, CLC filed a petition for  declaratory  order with the
Texas Public  Utilities  Commission  ("Texas PUC") requesting a declaration that
TNP's withholding is in error, which petition is currently pending.  Also, as of
March 31, 1999,  TNP  has  withheld  approximately $7.7 million of standby power
charges.  In  addition to the Texas PUC  petition,  CLC filed an action in Texas
courts on October 2, 1997,  alleging  TNP's breach of the power sales  agreement
and is seeking  refund of the  standby  charges.  In October  1998,  TNP and CLC
reached an  agreement  in  principle  to settle all  outstanding  disputes.  The
parties have finalized the settlement documentation which has been submitted for
approval by the Texas PUC.  Both the Texas PUC action and the court  action have
been put on hold  pending  completion  of the  settlement.  The Company does not
believe  this  will have  a   material   adverse  effect  on  the   consolidated
financial statements.

An action was filed against Lockport Energy Associates, L.P. ("LEA") and the New
York  Public  Service  Commission  ("NYPSC")  in August  1997 by New York  State
Electricity  and Gas Company  ("NYSEG")  in the Federal  District  Court for the
Northern District of New York. NYSEG has requested the Court to direct NYPSC and
the Federal Energy  Regulatory  Commission (the "FERC") to modify contract rates
to be  paid  to the  Lockport  Power  Plant.  In  October  1997,  NYPSC  filed a
cross-claim  alleging  that the FERC  violated  the  Public  Utility  Regulatory
Policies Act of 1978 as amended,  ("PURPA") and the Federal Power Act by failing
to reform the NYSEG contract that was previously approved by the NYPSC. Although
it is unable to predict  the  outcome of this case,  in any event,  the  Company
retains the right to require The Brooklyn Union Gas Company  ("BUG") to purchase
the  Company's  interest in the  Lockport  Power Plant for $18.9  million,  less
equity  distributions  received by the Company,  at any time before December 19,
2001.

The Company is involved in various other claims and legal actions arising out of
the normal  course of business.  The Company does not expect that the outcome of
these proceedings will have a material adverse effect on the Company's financial
position or results of  operations,  although no assurance  can be given in this
regard.

12.      Subsequent Event

On May 7, 1999, the Company  completed the  acquisition  from PG&E, of 12 Sonoma
County and 2 Lake County power plants  located at The  Geysers,  California  for
approximately  $212.8  million.  The  acquisition  was  financed  with a 24 year
operating  lease.  The Company's  geothermal  steam fields fuel the  facilities,
which have a combined  capacity of  approximately  700 megawatts of electricity.
All of the electricity generated from the facilities is sold into the California
energy market, with the exception of an agreement entered into on April 29, 1999
to  sell  to  Commonwealth   Energy   Corporation  75  megawatts  of  geothermal
electricity  in 1999,  100  megawatts  in 2000,  and 125  megawatts  in 2001 and
through June 2002.


                                       12


ITEM 2. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

Except for  historical  financial  information  contained  herein,  the  matters
discussed in this quarterly report 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 and subject to
the safe harbor created by the Securities  Litigation  Reform Act of 1995.  Such
statements  include  declarations   regarding  our  intent,  belief  or  current
expectations.  Prospective investors are cautioned that any such forward-looking
statements  are not  guarantees  of future  performance  and involve a number of
risks and  uncertainties;  actual  results  could differ  materially  from those
indicated by such forward-looking  statements.  Among the important factors that
could cause actual  results to differ  materially  from those  indicated by such
forward-looking  statements  are: (i) that the  information  is of a preliminary
nature  and  may  be  subject  to   further   adjustment,   (ii)  the   possible
unavailability   of  financing,   (iii)  risks   related  to  the   development,
acquisition,  and  operation  of power  plants,  (iv) the impact of avoided cost
pricing,  energy price  fluctuations and gas price increases,  (v) the impact of
curtailment,  (vi) the seasonal  nature of our business,  (vii) start-up  risks,
(viii) general operating risks, (ix) the dependence on third parties,  (x) risks
associated with international investments,  (xi) risks associated with the power
marketing  business,   (xii)  changes  in  government  regulation,   (xiii)  the
availability  of  natural  gas,  (xiv)  the  effects  of  competition,  (xv) the
dependence on senior  management,  (xvi)  volatility in our stock price,  (xvii)
fluctuations  in  quarterly  results and  seasonality,  and (xviii)  other risks
identified from time to time in our reports and  registration  statements  filed
with the Securities and Exchange Commission.

Overview

Calpine is engaged in the development,  acquisition, ownership, and operation of
power generation facilities and the sale of electricity and steam principally in
the United  States.  At March 31, 1999,  we had  interests in 22 powe plants and
three steam  fields  predominantly  in the United  States,  having an  aggregate
capacity of 3,018 megawatts.

On January 4, 1999, we completed the acquisition of a 20% interest in 82 billion
cubic feet of proven  natural gas reserves  located in the  Sacramento  basin of
Northern  California.  We paid approximately  $14.9 million for $13.0 million in
redeemable non-voting preferred stock and 20% of the outstanding common stock of
Sheridan  California  Energy, Inc ("SCEI").  Additionally,  we have signed a ten
year gas contract enabling us to purchase 100% of SCEI's production.

On February 17,  1999,  we  announced  that the Delta Energy  Center has met the
California Energy  Commission's Data Adequacy  requirements.  This ruling stated
that our Application for Certification  contained  adequate  information for the
California  Energy  Commission  to begin  their  analysis  of the power  plant's
environmental  impacts and proposed mitigation.  The Delta Energy Center, an 880
megawatt  gas-fired  power  plant  located  at  the  Dow  Chemical  facility  in
Pittsburg,  California,  is the first power plant that will be developed,  owned
and operated  under a joint venture with Bechtel  Enterprises,  and will provide
power to the  Pittsburg,  California  and greater San Francisco  Bay areas.  The
gas-fired power plant is to be constructed by Bechtel and operated by us.

On February  17,  1999,  we  announced  plans to develop,  own and operate a 540
megawatt gas-fired power plant in Westbrook,  Maine. We acquired the development
rights for the Westbrook Power Plant from Genesis Power  Corporation. This power
plant is scheduled to begin power  deliveries by the end of 2000, and will serve
the New England market. 



                                       13


On February  24,  1999,  we  announced  plans to develop,  own and operate a 600
megawatt  gas-fired  power  plant  located in San Jose,  California.  This power
plant,  called  the  Metcalf  Energy  Center,  is the second  power  plant to be
developed  under the joint  venture with Bechtel  Enterprises,  and will provide
electricity to the San Francisco Bay area.

On March 19, 1999, we completed the acquisition of Unocal Corporation's  Geysers
geothermanl  steam  fields  in  northern  California  for  approximately  $102.1
million.  The steam fields fuel PG&E's 12 Sonoma County power plants,  totalling
544 megwatts of capacity.  We purchased these plants on May 7, 1999 (see Note 12
to the Notes to Consolidated Financial Statements).

On April 14, 1999, we received approval from the California Energy Commission to
construct a 500 megawatt gas-fired power plant near Yuba City, California.  This
power  plant,  called  the Sutter  Power  Plant,  was the first new power  plant
approved  in  California's  deregulated  power  industry,  and is  the  cleanest
gas-fired  power plant permitted in the United States.  Electricity  produced by
the Sutter Power Plant will be sold to customers under  bilateral  contracts and
into California's power market.

On April 22, 1999, we entered into a joint venture with GenTex Power Corporation
to develop,  own and  operate a 500  megawatt  gas-fired  power plant in Bastrop
County, Texas, called Lost Pines I. Construction of this power plant is expected
to begin in October 1999.  We will manage all phases of the plant's  development
process,  with GenTex and ourselves jointly operating the plant. The output from
Lost Pines I will be divided  equally,  with  GenTex  selling its portion to its
customer base, while we will sell our portion to Texas' wholesale power market.

On April 23, 1999, we entered into a joint  agreement with Pinnacle West Capital
Corporation to  potentially  develop,  own and operate a 500 megawatt  gas-fired
power plant  located in Phoenix,  Arizona.  This plant,  called the West Phoenix
Power  Plant,  will  provide  power  to  the  Phoenix   metropolitan  area,  and
construction on the facility will commence in 2001.

On May 7, 1999, we completed the acquisitions from PG&E, of 12 Sonoma County and
2 Lake County power plants for  approximately  $212.8  million.  Our  geothermal
steam  fields  fuel  the   facilities,   which  have  a  combined   capacity  of
approximately  700  megawatts of  electricity.  All of the  generation  from the
facilities is sold to the  California  energy  market,  with the exception of an
agreement  entered  into on  April  29,  1999,  to sell to  Commonwealth  Energy
Corporation  75 megawatts of geothermal  electricity  in 1999,  100 megawatts in
2000,  and 125  megawatts in 2001 and through June 2002.  Historically,  we have
served as a steam  supplier  for these  facilities,  which  have been  owned and
operated  by  PG&E.  These  acquisitions  will  enable  us  to  consolidate  our
operations in The Geysers into a single ownership structure and to integrate the
power plant and steam field  operations,  allowing us to optimize the efficiency
and performance of the facilities. We believe that these acquisitions provide us
with  significant  synergies  that leverage our  expertise in  geothermal  power
generation  and position us to benefit from the demand for "green" energy in the
competitive market

Selected Operating Information

Set forth below is certain selected  operating  information for the power plants
and steam  fields,  for  which  results  are  consolidated  in our  consolidated
statements of operations.  The information set forth under power plants consists
of the results for the West Ford Flat Power  Plant,  Bear  Canyon  Power  Plant,
Greenleaf 1 & 2 Power Plants,  Watsonville  Power Plant,  King City Power Plant,
Gilroy Power Plant,  the Bethpage Power Plant since its  acquisition on February
5, 1998,  the Texas City and Clear Lake Power Plants since their  acquisition on
March 31, 1998, the Pasadena Power Plant since it began commercial  operation on
July 7, 1998, the Sonoma Power Plant since its  acquisition on July 17, 1998 and
the  Pittsburg  Power  Plant  since  its  acquisition  on  July  21,  1998.  The
information  set forth under steam  fields  consists of the results for the PG&E
Unit 13 and Unit 16 Steam Fields,  the Sonoma Steam Fields and the Thermal Power
Company Steam Fields.  


                                       14




                                             Three Months Ended
                                                  March 31,
                                           -----------------------  
(dollars in thousands)                     1999         1998
                                           ----------   ----------  
                                                     
Power Plants:
  Electricity revenue:
   Energy ..............................   $   73,425   $   23,314
   Capacity ............................   $   43,876   $    9,462
  Megawatt hours produced ..............    2,373,872      334,052
  Average energy price per kilowatt hour       0.0309       0.0698
Steam Fields:
 Steam revenue .........................   $   10,725   $   10,614
  Megawatt hours produced ..............      691,768      641,833
  Average price per kilowatt hour ......       0.0155       0.0165


Megawatt hours produced at the power plants  increased 611% for the three months
ended March 31, 1999 as compared with the same period in 1998,  primarily due to
1,833,697 megawatt hours of production at the Pittsburg,  Pasadena,  Clear Lake,
Texas City and Bethpage Power Plants.

OTHER FINANCIAL DATA RATIOS

Set forth  below are  certain  other  financial  data and ratios for the periods
indicated (in thousands, except ratio data):



                                          Three Months Ended
                                               March 31,
                                          ------------------
                                           1999      1998
                                          --------   -------
                                               
Depreciation and amortization ..........   $19,455   $12,582
Interest expense per indenture .........   $23,103   $19,724
EBITDA .................................   $51,138   $25,681
EBITDA to interest expense per indenture     2.21x     1.30x


EBITDA is defined  as income  from  operations  plus  depreciation,  capitalized
interest,  other income,  non-cash charges and cash received from investments in
power projects,  reduced by the income from unconsolidated  investments in power
projects.  EBITDA is presented not as a measure of operating results, but rather
as a measure of our ability to service  debt.  EBITDA should not be construed as
an alternative  either (i) to income from  operations  (determined in accordance
with  generally  accepted  accounting  principles)  or (ii) to cash  flows  from
operating   activities   (determined  in  accordance  with  generally   accepted
accounting principles).

Interest  expense  per  indenture  is defined  as total  interest  expense  plus
one-third  of all  operating  lease  obligations,  dividends  paid in respect to
preferred stock and cash contributions to any employee stock ownership plan used
to pay interest on loans to purchase capital stock of the company.




                                       15


Results of Operations

Three Months Ended March 31, 1999 Compared to Three Months Ended March 31, 1998



Consolidated Operations
(dollars in thousands)                      
                                            Three Months Ended March 31,   
                                            ---------------------------------              
Revenue:                                     1999      1998          % Change
                                            --------   --------      --------
                                                                
Electricity and steam sales .............   $128,026   $ 43,390        195
Service contract revenue ................      6,772      5,481         24
Income from unconsolidated investments in
   power projects .......................     10,812      3,754        188
Interest on loans to power projects .....        303      2,520        (88)
                                             -------   --------
   Total revenue ........................    145,913     55,145        165
                                             -------   --------


Revenue -- Total revenue  increased  165% to $145.9 million for the three months
ended March 31, 1999 compared to $55.1 million in 1998.

Electricity  and steam sales revenue  increased  195% to $128.0  million in 1999
compared to $43.4 million in 1998. The increase is primarily attributable to the
acquisition  of the  remaining  interests  in the  Texas  City,  Clear  Lake and
Bethpage Power Plants and the  acquisition of the Pittsburg  Power Plant.  These
power plants accounted for $78.3 million in additional  electricity  revenues in
1999.  The  Pasadena  Power  Plant,  which  became  operational  in  July  1998,
contributed $12.7 million in revenue during 1999. Additionally, our Gilroy Power
Plant  experienced  an  increase  of $4.8  million in 1999  compared to the same
period in 1998 due to planned  shutdowns in 1998. These increases were partially
offset by a decrease of $11.1 million at The Geysers  related to the  expiration
of the fixed priced period of their power sales  agreements.  Concurrently,  the
price of  electricity  for two of our power  plants,  Bear  Canyon and West Ford
Flat,  was  significantly  reduced  compared to the price for the same period in
1998.

     Service contract revenue increased to $6.8 million in 1999 compared to $5.5
million in 1998.  The 24%  increase  was  primarily  attributable  to a $437,000
increase in third party excess gas sales, as well as an increase of $478,000 for
fuel management fees.

     Income from unconsolidated  investments in power projects increased 188% to
$10.8  million in 1999  compared to $3.8 million  during  1998.  The increase is
primarily  attributable  to $1.2 million of equity income from our investment in
the Bayonne  Power Plant which was  acquired in March 1998,  an increase of $7.3
million from our Sumas equity  investments  and an increase of $1.2 million from
our Kennedy  International  Airport and Stonybrook Power Plants. These increases
were  partially  offset by a reduction of $2.9 million in equity income from our
Texas City and Clear Lake Power  Plants,  which were  consolidated  on March 31,
1998.

     Interest  income on loans to power  projects  decreased  88% to $303,000 in
1999 compared to $2.5 million in 1998. The decrease is primarily  related to the
acquisition of the remaining 50% interest in TCC on March 31, 1998.

Cost of  revenue  -- Cost of revenue  increased  178% to $109.5  million in 1999
compared to $39.4  million in 1998.  The increase of $70.1 million was primarily
attributable to increase plant operating,  fuel and  depreciation  expenses as a
result of the  acquisition of the remaining  interests in the Texas City,  Clear
Lake and Bethpage Power Plants, the acquisition of the Pittsburg Power Plant and
the startup of the Pasadena Power Plant.

General  and  administrative  expenses -- General  and  administrative  expenses
increased  92% to $10.0  million for the three  months in 1999  compared to $5.2
million in 1998. The increase was  attributable to continued growth in personnel
and  associated  overhead  costs  necessary to support the overall growth in our
operations.



                                       16


Interest  expense -- Interest  expense  increased  14% to $21.0  million for the
three  months  ended  March 31,  1999 from $18.5  million for the same period in
1998.  The  increase  was  primarily  attributable  to $7.9  million of interest
associated  with the  issuance of senior notes in 1998,  partially  offset by an
increase in capitalized interest of $1.8 million, and a reduction in interest of
$2.1 million  related to the  acquisition  of the  remaining 50% interest TCC on
March 31, 1998.

Provision  for income taxes -- The effective  income tax rate was  approximately
39% for the three months ended March 31, 1999. The reductions from the statutory
tax rate were  primarily due to depletion in excess of tax basis benefits at our
geothermal  facilities,  and a decrease in the California  taxes paid due to our
expansion into states other than California.

Liquidity and Capital Resources

To date, we have obtained cash from our operations,  borrowings under our credit
facilities  and  other  working  capital  lines,  sale of debt and  equity,  and
proceeds from non-recourse project financing.  We utilized this cash to fund our
operations,  service  debt  obligations,  fund  the  acquisition,   develop  and
construct power generation facilities, finance capital expenditures and meet our
other cash and liquidity  needs.  The following  table  summarizes our cash flow
activities for the periods indicated:

                         Three Months Ended 
                             March 31,
                       ----------------------
                       1999         1998
                       ---------    ---------
(in thousands)
Cash flows from:                                                   
Operating activities   $  33,379    $   3,545
Investing activities    (248,600)    (154,256)
Financing activities     817,646      199,158
                       ---------    ---------
        Total ......   $ 602,425    $  48,447
                       =========    =========

     Operating  activities  for  1999  provided  $33.4  million,  consisting  of
approximately  $19.4 million of depreciation and  amortization,  $3.9 million of
net income,  $10.3 million of distributions from  unconsolidated  investments in
power projects, $2.3 million of deferred income taxes, $7.6 million net decrease
in operating assets, and a $826,000 net increase in operating liabilities.  This
was offset by $10.8 million of income from unconsolidated investments.

     Investing activities for 1999 used $248.6 million,  primarily due to $102.1
million for the acquisition of Unocal,  $14.8 million for the acquisition of the
Sheridan Power Plant, a $6.8 million  increase in restricted cash, $48.9 million
of capital  expenditures related to the construction of the Pasadena Power Plant
Expansion,  $55.6 million of other capital expenditures  principally for turbine
purchases and for the Clear Lake Expansion project, $13.8 million of capitalized
project development costs, $3.8 million of interest  capitalized on construction
projects, $4.7 million of additional loans, offset by $1.9 million of maturities
of collateral securities in connection with the King City Power Plant.

     Financing activities for 1999 provided $817.6 million of cash consisting of
$47.6 million of borrowings  for the  construction  of the Pasadena Power Plant,
$128.6 million of borrowings of non-recourse  project financing,  $767.5 million
of net proceeds  from  additional  equity and senior debt  financings,  and $1.6
million for the issuance of common stock for our Employee  Stock  Purchase Plan,
partially  offset  by  $127.6  million  in  repayment  of  non-recourse  project
financing.

     At March 31,  1999,  cash and cash  equivalents  were  $699.0  million  and
working  capital  was  $678.0  million.  For  1999,  cash and  cash  equivalents
increased by $602.4 million and working  capital  increased by $591.1 million as
compared to December 31, 1998.

     As a developer,  owner and operator of power generation facilities,  we are
required to make long-term  commitments and  investments of substantial  capital
for our projects.  We historically have financed these capital requirements with
cash from  operations,  borrowings under our credit  facilities,  other lines of
credit,  non-recourse  project  financing  or  long-term  debt,  and the sale of
equity.



                                       17


     We  continue to evaluate  current and  forecasted  cash flow as a basis for
financing operating  requirements and capital  expenditures.  We believe that we
will have  sufficient  liquidity  from cash  flow  from  operations,  borrowings
available  under  the  lines of  credit  and  working  capital  to  satisfy  all
obligations  under  outstanding  indebtedness,  to finance  anticipated  capital
expenditures  and to fund  working  capital  requirements  for the  next  twelve
months.

     On January 4, 1999,  we  entered  into a Credit  Agreement  with ING (U.S.)
Capital LLC to provide up to $265 million of non-recourse  project financing for
the construction of the Pasadena facility expansion. As of March 31, 1999, $47.6
million was outstanding under the agreement. The outstanding loan bears interest
at  ING's  base  rate or at  LIBOR  plus an  applicable  margin  and is  payable
quarterly.  The loan matures on March 31, 2009.  In  connection  with the Credit
Agreement,  we entered into a $10.0 million letter of credit facility.  At March
31, 1999, there were no letters of credit outstanding under the facility.

On March 26,  1999,  we completed a public  offering of 6,000,000  shares of our
common stock at $31.00 per share. The net proceeds from this public offering are
estimated to be approximately  $177.9 million.  Additionally,  in April 1999, we
sold an additional  900,000  shares of common stock at $31.00 per share pursuant
to the exercise of the underwriters'  over-allotment  option for net proceeds of
approximately $26.7 million.

     On March 29, 1999,  we  completed a public  offering of $250 million of our
7-5/8%  Senior  Notes Due 2006 and of our $350 million  7-3/4%  Senior Notes Due
2009. After deducting  underwriting  discounts and expenses of the offering, the
aggregate  net  proceeds  from the sale of the Senior  Notes were  approximately
$589.6  million.  The Senior  Notes due 2006 bear  interest  at 7-5/8% per year,
payable  semi-annually  on April 15 and October 15 each year and mature on April
15, 2006.  The Senior Notes due 2006 are not redeemable  prior to maturity.  The
Senior Notes due 2009 bear interest at 7-3/4% per year, payable semi-annually on
April 15 and October 15 each year and mature on April 15, 2009. The Senior Notes
due 2009 are not redeemable prior to maturity.

     The net proceeds from the sale of common stock,  the Senior Notes Due 2006,
and the Senior  Notes Due 2009 will be used as  follows:  (i) $119.6  million to
refinance indebtedness relating to the Gilroy Power Plant, (ii) $77.6 million to
repay  indebtedness  under a bridge  facility  provided by Credit  Suisse  First
Boston to finance a portion of the  purchase  price to acquire the steam  fields
that service the Sonoma Power Plants,  (iii) $50.0 million to repay  outstanding
borrowings  under our  revolving  credit  facility,  $23.4  million of which was
incurred to finance a portion of the steam  fields that service the Sonoma Power
Plants,  (iv) $25.0  million to complete  the  expansion of the Clear Lake Power
Plant,  and (v)  approximately  $400.0  million  to  finance a portion  of power
generation  facilities  currently under  construction and the projects currently
under development. Transaction costs incurred in connection with the Senior Note
offering  were  recorded  as a  deferred  charge  and  are  amortized  over  the
respective  lives of the  Senior  Notes Due 2006 and the  Senior  Notes Due 2009
using the effective interest rate method.

     At March 31, 1999, we also had $105.0 million of outstanding  9-1/4% Senior
Notes  Due 2004,  which  mature on  February  1,  2004,  with  interest  payable
semi-annually  on  February  1 and August 1 of each year.  In  addition,  we had
$171.8 million of outstanding 10-1/2% Senior Notes Due 2006, which mature on May
15, 2006, with interest payable  semi-annually on May 15 and November 15 of each
year.  During 1997,  we issued  $275.0  million of 8-3/4% Senior Notes Due 2007,
which mature on July 15, 2007, with interest payable semi-annually on January 15
and July 15 of each year. During 1998, we issued $400.0 million of 7 7/8% Senior
Notes  Due  2008,   which  mature  on  April  1,  2008,  with  interest  payable
semi-annually on April 1 and October 1 of each year.

     At March  31,  1999,  we had a $100.0  million  revolving  credit  facility
available  with a  consortium  of  commercial  lending  institutions.  We had no
borrowings and $21.9 million of letters of credit  outstanding  under the credit
facility (See Note 9 to the Notes to  Consolidated  Financial  Statements).  The
credit facility  contains  certain  restrictions  that limit or prohibit,  among
other  things,  our  ability to incur  indebtedness,  make  payments  of certain
indebtedness,  pay dividends,  make  investments,  engage in  transactions  with
affiliates, create liens, sell assets and engage in mergers and consolidations.



                                       18


     At March 31, 1999, we had a $12.0 million letter of credit outstanding with
The Bank of Nova Scotia to secure performance of the Clear Lake Power Plant.

     We have a $1.1 million working  capital line with a commercial  lender that
may be used to fund  short-term  working  capital  commitments  and  letters  of
credit.  At March 31, 1999, we had no borrowings under this working capital line
and  $74,000 of letters of credit  outstanding.  Borrowings  accrue  interest at
prime plus 1%.

Outlook

Our strategy is to continue our rapid growth by  capitalizing on the significant
opportunities in the power market,  primarily through our active development and
acquisition  programs.  In pursuing our proven growth  strategy,  we utilize our
extensive  management  and technical  expertise to implement a fully  integrated
approach to the  acquisition,  development  and  operation  of power  generation
facilities.   This  approach   uses  our   expertise  in  design,   engineering,
procurement,  finance,  construction management,  fuel and resource acquisition,
operations and power  marketing,  which we believe provide us with a competitive
advantage. The key elements of our strategy are as follows:

- --   Development  and  expansion of power plants.  We are actively  pursuing the
     development and expansion of highly  efficient,  low-cost,  gas-fired power
     plants that replace old and inefficient  generating facilities and meet the
     demand for new  generation.  Our  strategy  is to develop  power  plants in
     strategic  geographic  locations that enable us to leverage  existing power
     generation  assets and  operate  the power  plants as  integrated  electric
     generation  systems.  This  allows  us  to  achieve  significant  operating
     synergies  and  efficiencies  in  fuel  procurement,  power  marketing  and
     operations and maintenance.

- --   We currently  have six new projects  under  construction,  representing  an
     additional  1,784  megawatts of  capacity.  Of these new  projects,  we are
     expanding  our  Pasadena and Clear Lake  facilities  by an aggregate of 545
     megawatts. In addition, four new gas-fired power plants, which will produce
     an  estimated  1,239   megawatts  of   electricity,   are  currently  under
     construction in Dighton,  Massachusetts;  Tiverton,  Rhode Island; Rumford,
     Maine;  and Westbrook,  Maine. We have also announced plans to develop five
     additional  power  generation  facilities,   totaling  an  estimated  3,180
     megawatts of electricity, in California, Texas, Arizona and Maine.

- --   Acquisition  of power plants.  Our strategy is to acquire power  generating
     facilities  that meet our stringent  acquisition  criteria and that provide
     significant  potential for revenue,  cash flow and earnings growth and that
     provide  the  opportunity  to enhance  the  operating  efficiencies  of the
     plants.  We  have  significantly   expanded  and  diversified  our  project
     portfolio  through the acquisition of power generation  facilities  through
     the completion of 23 acquisitions to date.

- --   We completed two acquisitions subsequent to the March 31, 1999 Consolidated
     Financial  Statements (See Note 12 to the Notes to  Consolidated  Financial
     Statements),  comprising  of 14  geothermal  power plants with an aggregate
     capacity of 694 megawatts and certain  related steam fields  located in The
     Geysers, California.  Historically,  we have served as a steam supplier for
     these  facilities,  which  have been  owned  and  operated  by PG&E.  These
     acquisitions  will enable us to  consolidate  our operations in The Geysers
     into a single  ownership  structure  and to  integrate  the power plant and
     steam  field  operations,  allowing  us  to  optimize  the  efficiency  and
     performance of the facilities.  We believe that these acquisitions  provide
     us with  significant  synergies  that  leverage our expertise in geothermal
     power  generation  and  position us to benefit  from the demand for "green"
     energy in the competitive market.

- --   Enhance the  performance  and  efficiency of existing  power  projects.  We
     continually  seek  to  maximize  the  power  generation  potential  of  our
     operating  assets and minimize our operating and  maintenance  expenses and
     fuel costs.  This will become even more  significant  as our  portfolio  of
     power generation facilities expands to an aggregate of 40 power plants with
     an aggregate  capacity of 5,207 megawatts,  after completion of our pending
     acquisitions  and  projects  currently  under  construction.  We  focus  on
     operating our plants as an  integrated  system of power  generation,  which
     enables  us to  minimize  costs and  maximize  operating  efficiencies.  We
     believe that  achieving and  maintaining  a low-cost of production  will be
     increasingly  important  to  compete  effectively  in the power  generation
     market.

                                       19


     Deregulation  within  the  Power  Generation  Industry.   Many  states  are
implementing  or  considering   regulatory   initiatives  designed  to  increase
competition in the domestic  power  generation  industry.  In December 1995, the
California  Public  Utilities  Commission  ("CPUC") issued an electric  industry
restructuring  decision,  which  envisioned  commencement  of  deregulation  and
implementation  of customer  choice of electricity  supplier by January 1, 1998.
Legislation  implementing  this decision was adopted in September 1996. The CPUC
subsequently  extended the implementation  date to April 1, 1998. As part of its
policy  decision,  the CPUC  indicated  that power sales  agreements of existing
qualifying  facilities  would be honored.  The Company  cannot predict the final
form or timing of the proposed  restructuring  and the impact, if any, that such
restructuring  would  have on the  Company's  existing  business  or  results of
operations.  The Company believes that any such  restructuring  would not have a
material effect on all of its power sales agreements and, accordingly,  believes
that its existing  business and results of  operations  would not be  materially
adversely affected, although there can be no assurance in this regard.

Financial Market Risks

From time to time, we use interest rate swap agreements to mitigate our exposure
to interest rate fluctuations.  We do not use derivative  financial  instruments
for speculative or trading  purposes.  The following  table  summarizes the fair
market value of our existing  interest rate swap agreements as of March 31, 1999
(in thousands):

                  Notional    Weighted
                 Principal     Average     Fair Market
 Maturity Date     Amount   Interest Rate     Value
- --------------   ---------  -------------  -----------
     2000        $ 28,000        9.9%       $   (869)
     2006          10,000        7.1%           (757)
     2009          65,000        6.1%         (1,466)
     2011          17,600        6.8%           (896)
     2013          75,000        7.2%         (6,559)
     2014          52,370        6.5%         (2,075)
                ---------                  -----------
Total            $247,970        7.0%       $(12,622)
                =========                  ===========

Short-term investments.  As of March 31, 1999, we have short-term investments of
$4.2 million.  These short-term investments consist of highly liquid investments
with maturities  between three and twelve months.  These investments are subject
to  interest  rate  risk and will  increase  in value if market  interest  rates
increase.  We have the ability to hold these  investments to maturity,  and as a
result, we would not expect the value of these investments to be affected to any
significant  degree by the effect of a sudden change in market  interest  rates.
Declines in interest rates over time will reduce our interest income.

     Outstanding  debt. As of March 31 1999, we have outstanding  long-term debt
of approximately  $1.7 billion primarily made up of $1.6 billion of senior notes
and $120.6 million of non-recourse  project financing.  Our non-recourse project
financing is stated at fair market value and bears a weighted  average  interest
rate of 6.8%. Our outstanding long-term Senior Notes as of March 31, 1999 are as
follows (in thousands):

                  Carrying                     Fair Market
Maturity Date      Amount    Interest Rate       Value
- -------------    ----------  -------------     ----------
   2004          $  105,000      9-1/4%        $  108,200
   2006             171,750     10-1/2%           188,900
   2006             250,000      7-5/8%           250,000
   2007             275,000      8-3/4%           288,800
   2008             400,000      7-7/8%           403,000
   2009             350,000      7-3/4%           350,000
                 ----------                    ----------
   Total        $ 1,551,750                    $1,588,900
                ===========                    ==========

                                       20


     Gas prices fluctuations.  We enter into derivative commodity instruments to
hedge our exposure to the impact of price  fluctuations  on gas purchases.  Such
instruments include regulated natural gas contracts and  over-the-counter  swaps
and basis hedges with major energy  derivative  product  specialists.  All hedge
transactions  are subject to our risk  management  policy  which does not permit
speculative  positions.  These  transactions  are  accounted for under the hedge
method of accounting.  Cash flows from derivative  instruments are recognized as
incurred through changes in working capital.

     We use a  sensitivity  analysis to evaluate  the  hypothetical  effect that
changes  in the market  value of  natural  gas may have on the fair value of our
derivative  instruments.  This  analysis  measures  the impact on the  commodity
derivative  instruments and, thereby,  does not consider the underlying exposure
related to the commodity.  However, gains and losses on derivative contracts are
expected to be similarly  offset by sales at the spot market  price.  Due to the
short  duration  of  the  contracts,   time  value  of  money  is  ignored.  The
hypothetical  change in fair value is calculated by  multiplying  the difference
between the  hypothetical  price and the  contractual  price by the  contractual
volumes.

Impact  of Recent  Accounting  Pronouncements  -- In June  1997,  the  Financial
Accounting  Standards  Board ("FASB") issued  Statement of Financial  Accounting
Standards  ("SFAS") No. 131,  "Disclosures  about  Segments of an Enterprise and
Related  Information."  This Statement  establishes the reporting of information
about  operating  segments in annual  financial  statements  and  requires  that
enterprises  report selected  information  about  operating  segments in interim
financial reports to shareholders.  SFAS No. 131 also establishes  standards for
related  disclosures  about  products and services,  geographic  areas and major
customers.  SFAS No. 131 is effective for fiscal years  beginning after December
15,  1997.  During  1998,  we started  the  process of  decentralization  of our
operations and completed this process during the first quarter of calendar 1999.
We have adopted  this  pronouncement  beginning  January 1999 (see Note 5 of the
Notes to Consolidated Financial Statements).

     In June 1998,  FASB also issued SFAS No. 133,  "Accounting  for  Derivative
Instruments and Hedging Activities".  This Statement establishes  accounting and
reporting  standards,  requiring every derivative  instrument be recorded in the
balance sheet as either an asset or liability  measured at its fair value.  This
Statement  requires  that changes in the  derivative's  fair value be recognized
currently in earnings unless specific hedge accounting criteria are met. Special
accounting  for  qualifying  hedges  allows a  derivative's  gains and losses to
offset related results on the hedged item in the income  statement,  and require
that a company formally  document,  designate,  and assess the  effectiveness of
transactions that receive hedge accounting.

     SFAS No. 133 is effective for fiscal years  beginning  after June 15, 1999.
This  Statement  must  be  applied  to  derivative  instruments  and to  certain
derivative instruments embedded in hybrid contracts that were issued,  acquired,
or substantively  modified after December 31, 1997. We have not yet analyzed the
impact  of  adopting  SFAS  No.  133 on the  financial  statements  and have not
determined  the timing of or method of the  adoption of SFAS No.  133.  However,
this Statement could increase volatility in earnings.

Year 2000  Compliance.  -- The "Year 2000 problem"  refers to the fact that some
computer hardware, software and embedded systems were designed to read and store
dates using only the last two digits of the year.

     We are  coordinating  our efforts to address the impact of Year 2000 on our
business through a Year 2000 Project Team comprised of representatives from each
business unit and our Year 2000 Project Office.  The Year 2000 Project Office is
charged with addressing  additional Year 2000 related issues including,  but not
limited to, business continuation and other contingency planning.  The Year 2000
Project  Team meets  regularly  to monitor  the  efforts of  assigned  staff and
contractors to identify, remediate and test our technology.

     The Year 2000 Project Team is focusing on four separate technology domains:



                                       21


- --   Corporate   applications,   which   include  core  business   systems;   

- --   Non-Information  technology,  which  includes  all  operating  and  control
     systems;

- --   End-User computing systems (that is, systems that are not,  considered core
     business systems but may contain date calculations); and

- --   Business partner and vendor systems.

     Corporate  Applications  -  Corporate  applications  are those  major  core
systems, such as customer  information,  human resources and general ledger, for
which our Management  Information Systems department has the responsibility.  We
utilize PeopleSoft for our major core systems.  The PeopleSoft  applications are
in operation and have been determined to be Year 2000 compliant.

     Non-Information  Technology/Embedded  Systems - Non-information  technology
includes   such  items  as  power   plant   operating   and   control   systems,
telecommunications  and facilities-based  equipment (e.g. telephones and two-way
radios) and other embedded  systems.  Each business unit is responsible  for the
inventory and remediation of its embedded systems.  In addition,  we are working
with the Electric Power  Research  Institute,  a consortium of power  companies,
including  investor-owned  utilities,  to coordinate vendor contacts and product
evaluation.  Because many embedded  systems are similar across  utilities,  this
concentrated  effort  should help to reduce total time expended in this area and
help to ensure that the Company's  efforts are  consistent  with the efforts and
practices of other power companies and utilities.

An Inventory phase for non-information technology/embedded systems was completed
in October 1998. The Initial Assessment Phase was completed in December 1998. We
plan to complete  remediation of non-compliant  systems by the second quarter of
1999. To date, all embedded  systems that have been identified by Calpine can be
upgraded or modified  within our current  schedule.  The schedule for addressing
year 2000  issues  with  respect  to  mission  critical  embedded  systems is as
follows:

PHASE                      STATUS              ESTIMATED COMPLETION DATE
- ------------------------------------------------------------------------
Inventory                  Complete            September 1998
Initial Assessment         Complete            November 1998
Detail Assessment          In-progress (92%)   February 1999 - May 1999
Remediation                In-progress (70%)   May 1999 - June 1999
Contingency Planning       In-progress (5%)    June 1999 - Oct 1999

     Testing of embedded  systems is complex because some of the testing must be
completed during power plant scheduled  maintenance outages. Much of the testing
will  be  accomplished  in  the  spring  of  1999  during  regularly   scheduled
maintenance  outage  periods.  At that time,  at least one typical  unit of each
critical  type will be tested by Calpine  or in  cooperation  with  other  power
companies, and the requirement for further testing will be determined.

     End-User  Computing  Systems - Some of our  business  units have  developed
systems,   databases,   spreadsheets,   etc.  that  contain  date  calculations.
Compliance of  individual  workstations  is also included in this domain.  These
systems comprise a relatively  small percentage of the required  modification in
terms of both number and criticality.

     Our end-user  computing systems are being inventoried by each business unit
and evaluated and  remediated by the Company's MIS staff.  We expect to complete
remediation and testing of the end-user computing systems by mid-1999.

     --   Business Partner and Vendor Systems -- We have contracts with business
          partners and vendors who provide products and services to the Company.
          We are vigorously  seeking to obtain Year 2000  assurances  from these
          third parties.  Year 2000 Project Team and appropriate  business units
          are  jointly  undertaking  this  effort.  We  have  sent  letters  and
          accompanying  Year 2000  surveys to about 800 vendors  and  suppliers.
          Over 600  responses  have  been  received  as of March 31 1999.  These
          responses  outline to  varying  degrees  the  approaches  vendors  are
          undertaking  to resolve  Year 2000 issues  within  their own  systems.
          Follow-up  letters  are  being  sent to  those  vendors  who  have not
          responded or whose responses were inadequate.

                                       22


     Contingency Planning - Contingency and business  continuation  planning are
in various stages of development  for critical and  high-priority  systems.  Our
existing  disaster response plan and other contingency plans are scheduled to be
evaluated  and  will  be  adopted  for  use in  case  of any  Year  2000-related
disruption. We expect to complete our contingency planning by October 1999.

     Costs - The costs of expected  modifications are currently  estimated to be
approximately  $1.7 million  which will be charged to expense as incurred.  From
January 1, 1998 through  March 31,  1999,  $158,000 has been charged to expense.
Approximately  12% of the estimated  total cost has been  incurred in 1998,  63%
will be  incurred in 1999,  and the  remainder  will be incurred in 2000.  These
costs have been and will be funded through  operating cash flow. These estimates
may change as additional  evaluations  are completed and remediation and testing
progress.

     Risks - We currently  expect to complete our Year 2000 efforts with respect
to critical  systems by mid-1999.  This  schedule and our cost  estimates may be
affected by, among other things,  the  availability of Year 2000 personnel,  the
readiness of third  parties,  the timing for testing our embedded  systems,  the
availability of vendor  resources to complete  embedded  system  assessments and
produce  required  component  upgrades and our ability to implement  appropriate
contingency plans.

     We produce revenues by selling power we produce to customers.  We depend on
transmission  and  distribution  facilities  that  are  owned  and  operated  by
investor-owned  utilities to deliver power to the our  customers.  If either our
customers  or  the  providers  of  transmission  and   distribution   facilities
experience  significant  disruptions  as a result of the Year 2000 problem,  our
ability to sell and deliver power may be hindered,  which could result in a loss
of revenue.

     The cost or consequences of a materially  incomplete or untimely resolution
of the Year 2000 problem could adversely affect our future operations, financial
results or our financial condition.

     The forward-looking  statements discussed in this outlook section involve a
number of risks and uncertainties.  Other risks and uncertainties  include,  but
are not limited to, the general  economy,  regulatory  conditions,  the changing
environment of the power generation industry,  pricing, the effects of legal and
administrative cases and proceedings,  and such other risks and uncertainties as
may be detailed from time to time in our SEC reports and filings.

PART II.    OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

On September 30, 1997, a lawsuit was filed by Indeck North  American  Power Fund
("Indeck") in the Circuit Court of Cook County, Illinois against Norweb plc. and
certain other parties,  including the Company. Some of Indeck's claims relate to
Calpine  Gordonsville,  Inc.'s  acquisition  of a 50%  interest in  Gordonsville
Energy  L.P.  from  Northern  Hydro  Limited  and  Calpine  Auburndale,   Inc.'s
acquisition  of a 50%  interest  in  Auburndale  Power  Plant  Partners  Limited
Partnership  from Norweb Power  Services  (No. 1) Limited.  Indeck  claimed that
Calpine Gordonsville,  Inc., Calpine Auburndale, Inc. and the Company tortiously
interfered  with  Indeck's  contractual  rights to purchase  such  interests and
conspired  with other  parties  to do so.  Indeck is  seeking  $25.0  million in
compensatory  damages,  $25.0 million in punitive  damages,  and the recovery of
attorneys' fees and costs. In April 1999, the court granted Calpine Gordonsville
and  Calpine  Auburndale's  motions to dismiss  with  prejudice.  The Company is
unable to predict the outcome of these proceedings.

There is currently a dispute between  Texas-New Mexico Power Company ("TNP") and
Clear Lake Cogeneration Limited Partnership  ("CLC"),  which owns the Clear Lake
Power Plant,  regarding  certain  costs and other  amounts that TNP has withheld
from payments due under the power sales agreement from August 1997 until October
1998. TNP has withheld  approximately $450,000 per month related 



                                       23


to transmission  charges.  In October 1997, CLC filed a petition for declaratory
order with the Texas Public  Utilities  Commission  ("Texas  PUC")  requesting a
declaration  that TNP's  withholding  is in error,  which  petition is currently
pending. Also, as of March 31, 1999, TNP has withheld approximately $7.7 million
of standby power  charges.  In addition to the Texas PUC petition,  CLC filed an
action in Texas  courts on October 2, 1997,  alleging  TNP's breach of the power
sales agreement and is seeking refund of the standby  charges.  In October 1998,
TNP and CLC  reached  an  agreement  in  principle  to  settle  all  outstanding
disputes.  The  parties  are  currently  finalizing  the  documentation  of  the
settlement  which must be approved  by the Texas PUC.  Both the Texas PUC action
and the court action have been put on hold pending completion of the settlement.
The  Company  does  not  believe  this  has a  material  adverse  effect  on the
consolidated financial statements.

An action was filed against Lockport Energy Associates, L.P. ("LEA") and the New
York  Public  Service  Commission  ("NYPSC")  in August  1997 by New York  State
Electricity  and Gas Company  ("NYSEG")  in the Federal  District  Court for the
Northern District of New York. NYSEG has requested the Court to direct NYPSC and
the Federal Energy  Regulatory  Commission (the "FERC") to modify contract rates
to be  paid  to the  Lockport  Power  Plant.  In  October  1997,  NYPSC  filed a
cross-claim  alleging  that the FERC  violated  the  Public  Utility  Regulatory
Policies Act of 1978 as amended,  ("PURPA") and the Federal Power Act by failing
to reform the NYSEG contract that was previously approved by the NYPSC. Although
it is unable to predict  the  outcome of this case,  in any event,  the  Company
retains the right to require The Brooklyn Union Gas Company  ("BUG") to purchase
the  Company's  interest in the  Lockport  Power Plant for $18.9  million,  less
equity  distributions  received by the Company,  at any time before December 19,
2001.

The Company is involved in various other claims and legal actions arising out of
the normal  course of business.  The Company does not expect that the outcome of
these proceedings will have a material adverse effect on the Company's financial
position or results of  operations,  although no assurance  can be given in this
regard.

ITEM 2.  CHANGE IN SECURITIES

                  None.

ITEM 3.  QUANTITIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Reference is made to Part II, Item 7A, Quantitative and Qualitative  Disclosures
About  Market Risk,  in the  Company's  Annual  Report on Form 10-K for the year
ended December 31, 1998 and to the subheading "Financial Market Risks" under the
heading "Management's Discussion and Analysis of Financial Condition and Results
of  Operations"  on pages 35-36 of the Company's  Annual Report on Form 10-K for
the year ended December 31, 1998.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

                  None.

ITEM 5.  OTHER INFORMATION

                  None.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

(a)  Reports on Form 8-K

     No reports were filed on Form 8-K during the quarter ended March 31,1999.

 (b) Exhibits

    The following exhibits are filed herewith unless otherwise indicated:



                                       24


   Exhibit         
   Number       Description

     3.1  --Amended  and  Restated   Certificate  of  Incorporation  of  Calpine
            Corporation, a Delaware corporation.(b)
     3.2  --Amended  and  Restated  Bylaws of  Calpine  Corporation,  a Delaware
            corporation.(b)
     4.1  --Indenture  dated as of  February  17,  1994  between the Company and
          Shawmut  Bank  of  Connecticut,   National  Association,  as  Trustee,
          including form of Notes.(a)
     4.2  --Indenture  dated as of May 16,  1996  between  the Company and Fleet
          National Bank, as Trustee, including form of Notes.(d)
     4.3  --Indenture  dated as of July 8, 1997 between the Company and The Bank
          of New York, as Trustee, including form of Notes.(g)
     4.4  --Indenture  dated as of March 31,  1998  between  the Company and The
          Bank of New York, as Trustee, including form of Notes.(l)
     4.5  --Indenture  dated as of March 26,  1999  between  the Company and The
          Bank of New York, as Trustee, including form of Notes.(m)
     10.1 --Financing Agreements
     10.1.1  --Construction  and Term Loan  Agreement,  dated as of January  30,
          1992,  between  Sumas  Cogeneration  Company,   L.P.,  The  Prudential
          Insurance Company of America and Credit Suisse, New York Branch.(a)
     10.1.2 --Amendment No. 1 to Construction and Term Loan Agreement,  dated as
          of May  24,  1993,  between  Sumas  Cogeneration  Company,  L.P.,  The
          Prudential  Insurance  Company of America and Credit Suisse,  New York
          Branch.(a)
     10.1.3 --Lease  dated as of April 24, 1996  between BAF Energy A California
          Limited  Partnership,  Lessor,  and  Calpine  King  City  Cogen,  LLC,
          Lessee.(c)
     10.1.4 --Credit  Agreement,  dated as of August  28,  1996,  among  Calpine
          Gilroy Cogen, L.P. and Banque Nationale de Paris.(b)
     10.1.5 --Credit  Agreement,  dated as of September 25, 1996,  among Calpine
          Corporation and The Bank of Nova Scotia.(c) 10.1.6 --Credit Agreement,
          dated  December 20, 1996,  among  Pasadena  Cogeneration  L.P. and ING
          (U.S.) Capital Corporation and The Bank Parties Hereto.(e)
     10.2 --Purchase Agreements
     10.2.1 --Asset  Purchase  Agreement,  dated as of August  28,  1996,  among
          Gilroy Energy Company,  McCormick & Company,  Incorporated and Calpine
          Gilroy Cogen, L.P.(d)
     10.2.2 --Noncompetition/Earnings  Contingency Agreement, dated as of August
          28,  1996,   among  Gilroy  Energy   Company,   McCormick  &  Company,
          Incorporated and Calpine Gilroy Cogen, L.P.(d)
     10.2.3 --Purchase and Sale Agreement  dated March 27, 1997 for the purchase
          and sale of shares of  Enron/Dominion  Cogen Corp.  Common Stock among
          Enron Power Corporation and Calpine Corporation.(i)
     10.2.4 --Stock  Purchase  and  Redemption  Agreement  dated March 31, 1998,
          among  Dominion  Cogen,  Inc.   Dominion  Energy,   Inc.  and  Calpine
          Finance.(i)
     10.2.5  --Stock  Purchase  Agreement  Among Gas  Energy  Inc.,  Gas  Energy
          Cogeneration Inc., Calpine Eastern Corporation and Calpine Corporation
          dated August 22, 1997.(h)
     10.2.6 --First  Amendment to the Stock Purchase  Agreement Among Gas Energy
          Inc.,  Gas  Cogeneration  Inc.,  The  Brooklyn  Union Gas  Company and
          Calpine Eastern  Corporation and Calpine  Corporation dated August 22,
          1997; as amended on December 19, 1997.(h)
     10.2.7 --Amended  and Restated  Cogenerated  Electricity  Sale and Purchase
          Agreement by and between  Cogenron Inc., and Texas Utilities  Electric
          Company dated June 12, 1985; as previously amended, and as amended and
          restated on December 29, 1997.(h)
     10.2.8 --Agreement for the Purchase of Electrical  Power and Energy between
          Capital  Cogeneration  Company Ltd. And Texas-New Mexico Power Company
          Agreement.(h)
     10.2.9 --Stock  Purchase  Agreement  dated May 1, 1998 and between  Calpine
          Corporation and CCNG Investments, L.P.(k)


                                       25


     10.3       --Power Sales Agreements
     10.3.1 --Long-Term Energy and Capacity Power Purchase Agreement relating to
          the Bear Canyon Facility, dated November 30, 1984, between Pacific Gas
          & Electric and Calpine  Geysers  Company,  L.P.  (formerly  Santa Rosa
          Geothermal  Company,  L.P.),  Amendment dated October 17, 1985, Second
          Amendment dated October 19, 1988, and related documents.(a)
     10.3.2 --Long-Term Energy and Capacity Power Purchase Agreement relating to
          the Bear Canyon Facility, dated November 29, 1984, between Pacific Gas
          & Electric and Calpine  Geysers  Company,  L.P.  (formerly  Santa Rosa
          Geothermal  Company,  L.P.), and Modification dated November 29, 1984,
          Amendment dated October 17, 1985,  Second  Amendment dated October 19,
          1988, and related documents.(a)
     10.3.3 --Long-Term Energy and Capacity Power Purchase Agreement relating to
          the West Ford Flat Facility,  dated November 13, 1984, between Pacific
          Gas & Electric and Calpine Geysers Company,  L.P. (formerly Santa Rosa
          Geothermal Company, L.P.), and Amendments dated May 18, 1987, June 22,
          1987, July 3, 1987 and January 21, 1988, and related documents.(a)
     10.3.4 --Agreement for Firm Power Purchase,  dated as of February 24, 1989,
          between Puget Sound Power & Light  Company and Sumas Energy,  Inc. and
          Amendment thereto dated September 30, 1991.(a)
     10.3.5 --Long-Term  Energy and Capacity  Power  Purchase  Agreement,  dated
          December 5,1985 , between  Calpine Gilroy Cogen,  L.P. and Pacific Gas
          and Electric Company,  and Amendments thereto dated December 19, 1993,
          July 18, 1985, June 9, 1986, August 18, 1988 and June 9, 1991.(b)
     10.3.6 --Amended and Restated  Energy Sales  Agreement,  dated December 16,
          1996,  between Phillips  Petroleum Company and Pasadena  Cogeneration,
          L.P.(e)
     10.4 --Steam Sales Agreements
     10.4.1 --Amendment to the Steam and Electricity  Service  Agreement between
          Cogenron Inc. and Union Carbide Corporation dated June 12, 1985.(h)
     10.6       --Gas Supply Agreements
     10.6.1 --Gas Sale and  Purchase  Agreement,  dated as of December 23, 1991,
          between ENCO Gas, Ltd. and Sumas Cogeneration Company, L.P.(a)
     10.6.2 --Gas Management  Agreement,  dated as of December 23, 1991, between
          Canadian  Hydrocarbons  Marketing  Inc.,  ENCO  Gas,  Ltd.  And  Sumas
          Cogeneration Company, L.P.(a)
     10.8       --General
     10.8.1 --Limited Partnership Agreement of Sumas Cogeneration Company, L.P.,
          dated as of August 28, 1991,  between Sumas  Energy,  Inc. and Whatcom
          Cogeneration Partners, L.P.(a)
     10.8.2  --First  Amendment  to  Limited  Partnership   Agreement  of  Sumas
          Cogeneration  Company,  L.P.,  dated as of January 30,  1992,  between
          Whatcom Cogeneration Partners, L.P. and Sumas Energy, Inc.(a)
     10.8.3  --Second  Amendment  to  Limited  Partnership  Agreement  of  Sumas
          Cogeneration Company,  L.P., dated as of May 24, 1993, between Whatcom
          Cogeneration Partners, L.P. and Sumas Energy, Inc.(a)
     10.8.4 --Amended and Restated Limited  Partnership  Agreement of Geothermal
          Energy Partners Ltd., L.P., dated as of May 19, 1989,  between Western
          Geothermal  Company,   L.P.,  Sonoma  Geothermal  Company,  L.P.,  and
          Cloverdale Geothermal Partners, L.P.(a)
     10.8.5 --Ground  Lease  Agreement,  between Union Carbide  Corporation  and
          Northern Cogeneration One Company, dated January 1, 1986.(h)
     10.9.1 --Calpine  Corporation  Stock Option Program and forms of agreements
          thereunder.(a)
     10.9.2  --Calpine  Corporation  1996  Stock  Incentive  Plan  and  forms of
          agreements thereunder.(b)
     10.9.3 --Calpine  Corporation  Employee  Stock  Purchase  Plan and forms of
          agreements thereunder.(b)
     10.10.1  --Amended  and  Restated  Employment   Agreement  between  Calpine
          Corporation and Mr. Peter Cartwright.(b)
     10.10.2  --Senior  Vice  President  Employment  Agreement  between  Calpine
          Corporation and Ms. Ann B. Curtis.(b)
     10.10.3  --Senior  Vice  President  Employment  Agreement  between  Calpine
          Corporation and Mr. Lynn A. Kerby.(b)
     10.10.4 --Vice President  Employment  Agreement between Calpine Corporation
          and Mr. Ron A. Walter.(b)


                                       26


     10.10.5 --Vice President  Employment  Agreement between Calpine Corporation
          and Mr. Robert D. Kelly.(b)
     10.10.6 --First Amended and Restated  Consulting  Contract  between Calpine
          Corporation   and  Mr.  George  J.   Stathakis.(b)   10.11  --Form  of
          Indemnification Agreement for directors and officers.(b)
     21.1 --Subsidiaries of the Company.(d)
     27.0 --Financial Data Schedule.* ___________

     (a)  Incorporated  by reference to Registrant's  Registration  Statement on
     Form S-1 (Registration Statement No. 33-73160).

     (b)  Incorporated  by reference to Registrant's  Registration  Statement on
     Form S-1 (Registration Statement No. 333-07497).

     (c)  Incorporated by reference to  Registrant's  Current Report on Form 8-K
     dated May 1, 1996 and filed on May 14, 1996.

     (d)  Incorporated by reference to  Registrant's  Current Report on Form 8-K
     dated August 29, 1996 and filed on September 13, 1996.

     (e)  Incorporated by reference to  Registrant's  Annual Report on Form 10-K
     dated December 31, 1996, filed on March 27, 1996.

     (f) Incorporated by reference to Registrant's Quarterly Report on Form 10-Q
     dated March 31, 1997 and filed on May 12, 1997.

     (g) Incorporated by reference to Registrant's Quarterly Report on Form 10-Q
     dated June 30, 1997 and filed on August 14, 1997.

     (h) Incorporated by reference to Registrant's  Annual Report on Form 10-K/A
     dated December 31, 1997 and filed on April 1, 1998.

     (i)  Incorporated by reference to  Registrant's  Current Report on Form 8-K
     dated March 31, 1998 and filed on April 14, 1998.

     (j) Incorporated by reference to Registrant's Quarterly Report on Form 10-Q
     dated March 31, 1998 and filed on April 14, 1998.

     (k)  Incorporated by reference to  Registrant's  Current Report on Form 8-K
     dated May 26, 1998 and filed on June 9, 1998.

     (l)  Incorporated  by reference to Registrant's  Registration  Statement on
     Form S-4, filed on August 10, 1998 (Registration Statement No. 333-61047).

     (m) Incorporated by reference to Registrant's  Form 424B filed on March 26,
     1999 with the Securities and Exchange Commission.

     * Filed herewith.

Exhibit 27        Financial Data Schedule



                                       27



                                   SIGNATURES

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



CALPINE CORPORATION



By:      /s/ Ann B, Curtis                                 Date:    May 13, 1999
         ------------------------
         Ann B. Curtis
         Executive Vice President
         (Chief Financial Officer)



By:      /s/ Charles B. Clark                              Date:    May 13, 1999
         ------------------------
         Charles B. Clark, Jr.
         Vice President and 
         Corporate Controller
         (Chief Accounting Officer)



                                       28