UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 2 )*

Calpine Corporation

(Name of Issuer)

Common Stock, $.001 par value

(Title of Class of Securities)

131347106
 (CUSIP Number)

December 31, 1998 - Amendment pursuant to Rule 13d-2(b)

(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[X] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

-------------------                              ----------------------------

CUSIP NO. 131347106             13G              Page    1     of  3   Pages
                                                       ------     -----
-------------------                              ----------------------------

------------------------------------------------------------------------------
   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Boston Partners Asset Management, L.P.

------------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*      (a) [ ]
                                                               (b) [ ]
        Not applicable

------------------------------------------------------------------------------
   3     SEC USE ONLY

------------------------------------------------------------------------------
   4    CITIZENSHIP OR PLACE OF ORGANIZATION

        Delaware

------------------------------------------------------------------------------
                         5    SOLE VOTING POWER

      NUMBER OF               -0- shares
       SHARES          -------------------------------------------------------
    BENEFICIALLY         6    SHARED VOTING POWER
      OWNED BY
        EACH                  -0- shares
      REPORTING        -------------------------------------------------------
       PERSON            7    SOLE DISPOSITIVE POWER
        WITH
                              -0- shares
                       -------------------------------------------------------
                         8    SHARED DISPOSITIVE POWER

                              -0- shares
------------------------------------------------------------------------------
   9     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         -0- shares
------------------------------------------------------------------------------
  10    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    [ ]
        SHARES*

        Not applicable
------------------------------------------------------------------------------
  11    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

        0%

------------------------------------------------------------------------------
  12    TYPE OF REPORTING PERSON *

        IA

------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!	

-------------------                              ----------------------------

CUSIP NO. 131347106             13G              Page    2     of  3   Pages
                                                       ------     -----
-------------------                              ----------------------------

------------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Boston Partners, Inc.

------------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*      (a) [ ]
                                                               (b) [ ]
        Not applicable

------------------------------------------------------------------------------
   3     SEC USE ONLY

------------------------------------------------------------------------------
   4    CITIZENSHIP OR PLACE OF ORGANIZATION

        Delaware
------------------------------------------------------------------------------
                         5    SOLE VOTING POWER
     NUMBER OF
      SHARES                  -0- shares
   BENEFICIALLY        -------------------------------------------------------
     OWNED BY            6    SHARED VOTING POWER
       EACH
     REPORTING                -0- shares
      PERSON          -------------------------------------------------------
       WITH              7     SOLE DISPOSITIVE POWER

                              -0- shares
                    -------------------------------------------------------
                         8    SHARED DISPOSITIVE POWER

                              -0- shares
------------------------------------------------------------------------------
   9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        -0- shares
------------------------------------------------------------------------------
  10    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    [ ]
        SHARES*

        Not applicable
------------------------------------------------------------------------------
  11    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

        0%

------------------------------------------------------------------------------
  12    TYPE OF REPORTING PERSON *

        CO

------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!	

-------------------                              ----------------------------

CUSIP NO. 131347106             13G              Page    3     of  3   Pages
                                                       ------     -----
-------------------                              ----------------------------

------------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Desmond John Heathwood

------------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*       (a) [ ]
                                                                (b) [ ]

        Not applicable

------------------------------------------------------------------------------
   3    SEC USE ONLY

------------------------------------------------------------------------------
   4    CITIZENSHIP OR PLACE OF ORGANIZATION

        United States

------------------------------------------------------------------------------
                         5    SOLE VOTING POWER
      NUMBER OF
       SHARES                 -0- shares
    BENEFICIALLY       -------------------------------------------------------
      OWNED BY           6    SHARED VOTING POWER
        EACH
      REPORTING               -0- shares
       PERSON         -------------------------------------------------------
        WITH             7    SOLE DISPOSITIVE POWER

                              -0- shares
                     -------------------------------------------------------
                         8    SHARED DISPOSITIVE POWER

                              -0- shares
------------------------------------------------------------------------------
   9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        -0- shares
------------------------------------------------------------------------------
  10    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN     [ ]
        SHARES*

        Not applicable
------------------------------------------------------------------------------
  11    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

        0%

------------------------------------------------------------------------------
  12    TYPE OF REPORTING PERSON *

        IN

------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!	

Item 1(a). Name of Issuer: Calpine Corporation (the "Issuer").
Item 1(b). Address of Issuer's Principal Executive Offices:
 50 West San Fernando Street, San Jose, CA 95113
Item 2(a). Names of Persons Filing: Boston Partners Asset Management, L.P.
 ("BPAM"), Boston Partners, Inc. ("Boston Partners"), and Desmond John Heathwood. BPAM, Boston Partners, and Mr. Heathwood are sometimes referred to collectively herein as the "Reporting Persons."
Item 2(b). Address of Principal Business Office or, if None, Residence:
 The address of the principal business office of BPAM, Boston Partners, and Mr. Heathwood is 28 State Street, 20th Floor, Boston, MA 02109.
Item 2(c). Citizenship: BPAM is a Delaware limited partnership. Boston
 Partners is a Delaware corporation. Mr. Heathwood is a United States citizen.
Item 2(d). Title of Class of Securities: Common Stock, $.001 par value
 ("Common Stock").
Item 2(e). CUSIP Number: 131347106
Item 3. If this statement is filed pursuant to Rule 13d-1(b) or
 13d-2(b) or (c), check whether the person filing is a:
(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e) [X] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);
(g) [ ] A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);

(h) [ ] A savings association as defined in section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i) [ ] A church plan that is excluded from the definition of an investment company under
Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j) [ ] Group, in accordance with Rule 13d-1(b)(1) (ii)(J).
Item 4. Ownership.
(a) Amount Beneficially Owned: Each of the Reporting Persons may be deemed to own beneficially 0 shares of Common Stock at December 31, 1998. BPAM owns of record 0 shares of Common Stock. As sole general partner of BPAM, Boston Partners may be deemed to own beneficially all of the shares of Common Stock that BPAM may be deemed to own beneficially. As principal stockholder of Boston Partners, Mr. Heathwood may be deemed to own beneficially all of the Common Stock that Boston Partners may be deemed to own beneficially. Therefore, each of the Reporting Persons may be deemed to own beneficially 0 shares of Common Stock of the Issuer.
(b) Percent of Class: 0 % for all Reporting Persons. The foregoing percentage is calculated based on the 20,151,581 shares of Common Stock outstanding on November 9, 1998, as reported on the Form 10Q for the quarter ended September 30, 1998.
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote: 0 shares for all Reporting Persons.
(ii) shared power to vote or to direct the vote: 0 shares for all Reporting Persons.
(iii) sole power to dispose or to direct the disposition of: 0 shares for all Reporting Persons.
(iv) shared power to dispose or to direct the disposition of: 0 shares for all Reporting Persons.
Pursuant to Rule 13d-4, each of Boston Partners and Mr. Heathwood expressly disclaims beneficial ownership of any shares of Common Stock of the Issuer.
Item 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report that as of the date hereof the Reporting Persons have ceased to be the beneficial owners of more than five percent of the Common Stock of the Issuer, check the following [ X ].
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
BPAM holds all of the above 0 shares under management for its clients, who have the right to direct the receipt of dividends, to receive dividends from such shares and to receive the proceeds from the sale of such shares. None of these clients holds more than five percent of the Common Stock of the Issuer.
Item 7. Identification and Classification of the Subsidiary Which
 Acquired the Security Being Reported on by the Parent Holding Company.
Not applicable.
Item 8. Identification and Classification of Members of the Group.
Not applicable. BPAM, Boston Partners and Mr. Heathwood expressly disclaim membership in a "group" as defined in Rule 13d-5(b)(1).
Item 9. Notice of Dissolution of Group.
Not applicable.
Item 10. Certification.
By signing below we certify that, to the best of our knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as participant in any transaction having that purpose or effect.

SIGNATURE
After reasonable inquiry and to the best of our knowledge and belief, we certify that the information set forth in this statement is true, complete and correct. We also hereby agree to file this statement jointly pursuant to the agreement set forth as Exhibit 1 hereto.
Dated: February 12, 1999
BOSTON PARTNERS ASSET MANAGEMENT, L.P.
By: Boston Partners, Inc.,
its general partner

By:    /s/ Mary Ann Iudice
       ---------------------
       William J. Kelly
       Treasurer and Senior Vice President
       by:    Mary Ann Iudice
              Attorney-in-Fact*	

BOSTON PARTNERS, INC.

        By:    /s/ Mary Ann Iudice
               ----------------------
               William J. Kelly
               Treasurer and Senior Vice President
               by:    Mary Ann Iudice
                      Attorney-in-Fact*

/s/ Mary Ann Iudice
--------------------------
Desmond John Heathwood
by:     Mary Ann Iudice
        Attorney-in-Fact**	

* Signed pursuant to a Power of Attorney executed by William J. Kelly, a copy of which is filed herewith.
** Signed pursuant to a Power of Attorney executed by Desmond John Heathwood, a copy of which is filed herewith.

Exhibit 1
AGREEMENT
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of shares of Common Stock of Calpine Corporation.
This Agreement may be executed in any number of counterparts, each of which shall be deemed an original.
EXECUTED this 12th day of February, 1999.
BOSTON PARTNERS ASSET MANAGEMENT, L.P.
By: Boston Partners, Inc.
its general partner

By:     /s/ Mary Ann Iudice
       --------------------------
       William J. Kelly
       Treasurer and Senior Vice President
       by:    Mary Ann Iudice
              Attorney-in-Fact*	

BOSTON PARTNERS, INC.

        By:    /s/ Mary Ann Iudice
               ---------------------------
               William J. Kelly
               Treasurer and Senior Vice President
               by:    Mary Ann Iudice
                      Attorney-in-Fact*

/s/ Mary Ann Iudice
--------------------------
Desmond John Heathwood
by:     Mary Ann Iudice
        Attorney-in-Fact**	

* Signed pursuant to a Power of Attorney executed by William J. Kelly, a copy of which is filed herewith.
** Signed pursuant to a Power of Attorney executed by Desmond John Heathwood, a copy of which is filed herewith.

EXHIBIT 24.1
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, Desmond John Heathwood, hereby constitutes and appoints William J. Kelly and Mary Ann Iudice his true and lawful attorneys-in-fact and agents, for him and in his name, place and stead, to sign any Schedule 13G or Schedule 13D relating to beneficial ownership and changes in beneficial ownership of equity securities of the companies set forth on Exhibit A hereto (each, a "Company" and, collectively, the "Companies"), and any amendment thereto, and to file the same, with all exhibits thereto and other documents in connection therewith, with the U.S. Securities and Exchange Commission, and submit copies thereof to any securities exchange or automated quotation system and to the applicable Company, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite or necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents may lawfully do or cause to be done by virtue hereof. This power-of-attorney shall expire at such time as the undersigned ceases to be subject to filing requirements under Section 13(d) and/or 13(g) under the Securities and Exchange Act of 1934, as amended, with respect to the Companies.

/s/ Desmond J. Heathwood
------------------------
Desmond John Heathwood

Dated: February 9, 1998	

EXHIBIT A
Companies Subject to Power of Attorney
Dated as of February 9, 1998
American General Hospitality Corporation Bank Plus Corporation
Calpine Corporation
Chris-Craft Industries, Inc. Golden State Bancorp, Inc. Mid-America Apartment Communities, Inc. Public Service Company of New Mexico RFS Hotel Investors, Inc. Security-Connecticut Corporation Shopko Stores, Inc.
SLM Holding Corporation
The Vanguard Group, Gemini II Inc. (closed end fund) Wang Laboratories, Inc.
Allmerica Financial Corporation BJ's Wholesale Club, Inc. Bowne & Co., Inc.
Caltec Net Lease Realty, Inc. Chiquita Brands International, Inc. Equity Inns, Inc.
Harcourt General, Inc.
Highlands Insurance Group, Inc. Horace Mann Educators Corporation IPC Holdings, Ltd.
Long Island Lighting Company
Moog, Inc.
National Presto Industries, Inc. PFF Bancorp, Inc.
WMS Industries Inc.
Woolworth Corporation

Exhibit 24.2
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, William J. Kelly, Treasurer and Senior Vice President of Boston Partners, Inc., hereby constitutes and appoints Mary Ann Iudice his true and lawful attorney-in-fact and agent, for him and in his name, place and stead, to sign any Schedule 13G or Schedule 13D relating to beneficial ownership and changes in beneficial ownership of equity securities of the companies set forth on Exhibit A hereto (each, a "Company" and, collectively, the "Companies"), and any amendment thereto, and to file the same, with all exhibits thereto and other documents in connection therewith, with the U.S. Securities and Exchange Commission, and submit copies thereof to any securities exchange or automated quotation system and to the applicable Company, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite or necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent may lawfully do or cause to be done by virtue hereof. This power-of-attorney shall expire at such time as Boston Partners, Inc. ceases to be subject to filing requirements under Section 13(d) and/or 13(g) under the Securities and Exchange Act of 1934, as amended, with respect to the Companies.

/s/ William J. Kelly
--------------------
William J. Kelly

Dated: February 8, 1998	

EXHIBIT A
Companies Subject to Power of Attorney
Dated as of February 9, 1998
American General Hospitality Corporation Bank Plus Corporation Calpine Corporation
Caltec Net Lease Realty, Inc. Chris-Craft Industries, Inc. Golden State Bancorp, Inc. Mid-America Apartment Communities, Inc. Public Service Company of New Mexico RFS Hotel Investors, Inc. Security-Connecticut Corporation Shopko Stores, Inc.
SLM Holding Corporation The Vanguard Group, Gemini II Inc. (closed end fund) Wang Laboratories, Inc. WMS Industries Inc.
Woolworth Corporation

CERTIFICATE OF THE SECRETARY
The undersigned, Desmond John Heathwood, Secretary of Boston Partners, Inc., a Delaware corporation (the "Company"), DOES HEREBY CERTIFY THAT the resolutions set forth below are true and correct copies of resolutions adopted by the Board of Directors of the Company by unanimous written consent dated February 9, 1998; and such resolutions are in full force and effect on the date hereof:
Resolutions Adopted by the Board of Directors of Boston Partners, Inc. by Unanimous Written Consent Dated February 9, 1998
RESOLVED, that each officer of the Company who may be required to sign and execute any Schedule 13G or Schedule 13D relating to beneficial ownership and changes in beneficial ownership of equity securities with respect to which the Company is subject to filing requirements under Section 13(d) or 13(g) under the Securities and Exchange Act of 1934, as amended ("Section 13 Filings"), be and hereby is authorized to execute a power of attorney appointing Mary Ann Iudice his true and lawful attorney-in-fact and agent, for him and in his name, place and stead, to sign any Section 13 Filings, and any amendment thereto, and to file the same, with all exhibits thereto and other documents in connection therewith, with the U.S. Securities and Exchange Commission, and submit copies thereof to any securities exchange or automated quotation system and to the applicable Company, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite or necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent may lawfully do or cause to be done by virtue hereof.
WITNESS my hand and the seal of the Company this 9th day of February, 1998.

                                                   /s/ Desmond John Heathwood
                                                   --------------------------
[Corporate Seal]                                   Desmond John Heathwood
                                                   Secretary