Document:

Exhibit 10.3.17

                                 AMENDMENT NO. 1
                                 ---------------

                                     TO THE
                                     ------

                             POWER PURCHASE CONTRACT
                             -----------------------

                                     BETWEEN
                                     -------

                       SOUTHERN CALIFORNIA EDISON COMPANY
                       ----------------------------------

                                       AND
                                       ---

                                 MAMMOTH PACIFIC
                                 ---------------

                          (CASA DIABLO GEOTHERMAL III)
                          ----------------------------

1.  PARTIES
    -------

              The Parties to this Amendment No. 1 to the Power Purchase Contract
are Mammoth Pacific, hereinafter referred to as "Mammoth Pacific", and Southern
California Edison Company, a California corporation, hereinafter referred to as
"Edison", individually "Party", collectively "Parties".

2.  RECITALS
    --------

              2.1 On April 15, 1985, the Parties executed an agreement entitled
Power Purchase Contract between Mammoth Pacific and Southern California Edison
Company (referred to in this Amendment as the "Original Contract").

              2.2 The parties wish to amend the Original Contract to revise the
date construction shall commence.

3.  AGREEMENT
    ---------

              In consideration of the terms and conditions contained in this
Amendment No. 1, the Parties agree as follows:

              3.1  Effective Date
                   --------------

              This Amendment No. 1 shall become effective when it has been duly
executed by the Parties.

              3.2  Changes to Contract Provisions
                   ------------------------------

              The date Seller shall commence construction of the Generating
Facility, as specified on page 1a, Section 1.2.e, in the Original Contract, is
hereby amended to be July 1987.

4.  OTHER CONTRACT TERMS AND CONDITIONS
    -----------------------------------

              Except as expressly amended herein, all terms and conditions of
the Original Contract shall remain in force and effect.

                                       2

5.  DUPLICATE ORIGINALS
    -------------------

              This Amendment No. 1 is executed in two originals. The signatories
hereto represent that they have been appropriately authorized to enter into this
Amendment on behalf of the Party for whom they sign. This Amendment is hereby
executed as of this 25th day of October, 1985.

ATTEST:                                       MAMMOTH PACIFIC

By:                                           By: /s/ Lee H. Freeman
    ------------------------------------         -------------------------------
                                                         LEE H. FREEMAN
                                                         Vice President
                                                 Pacific Lighting Energy Systems

ATTEST:                                       SOUTHERN CALIFORNIA EDISON COMPANY

By:                                           By:
    ------------------------------------         -------------------------------
                                                        Edward A. Myers, Jr.
                                                           Vice President

Approved as to form:
  John R. Bury
Vice President and General Counsel

By /s/ John R. Bury
   -------------------------------
   Attorney
   10/25/1985

                                       3Exhibit 10.3.18

                                 AMENDMENT NO. 2
                         POWER PURCHASE CONTRACT BETWEEN
                       SOUTHERN CALIFORNIA EDISON COMPANY
                       AND PACIFIC LIGHTING ENERGY SYSTEMS
                       -----------------------------------

1.  PARTIES:
    -------

              This Amendment No. 2 to the Power Purchase Contract between
Southern California Edison Company and Pacific Lighting Energy Systems
("Contract") for the PLES I project is entered into between Southern California
Edison Company ("Edison") and Pacific Lighting Energy Systems, renamed Pacific
Energy ("Seller"), individually, "Party," and collectively, "Parties."

2.  RECITALS:
    --------

              This Amendment No. 2 to the Contract is made with reference to the
following facts, among others:

              2.1 Edison and Santa Fe Geothermal, Inc. ("Santa Fe") executed the
Contract on April 16, 1985.

              2.2 Santa Fe assigned the Contract to Seller effective April 2,
1986.

              2.3 Edison and Seller executed Amendment No. 1 to the Contract on
October 27, 1989.

              2.4 The Contract was subject to Uncontrollable Force which
rendered Pacific Energy unable to perform its obligations under the Contract for
a period of five hundred forty-eight (548) days.

              2.5 The Parties desire to amend the Contract to change the date of
expected Firm Operation set forth at Section 1.7 of the Contract to reflect the
ffect of the Uncontrollable Force.

3.  AGREEMENT:
    ---------

              The Parties agree to amend the Contract as follows:

              (A) The Expected Firm Operation date of "February 1987" set forth
at Section 1.7 of the Contract is deleted, and replaced with "October 16, 1991."

              (B) The First Period of the Contract Term set forth at Section 3.1
of the Contract shall commence upon date of Firm Operation, and the phrase "but
not later than five years from the date of execution of this Contract" is
deleted.

              (C) The text of Section 12 should be deleted, and replaced with:
"This Contract shall terminate if Firm Operation does not occur by October 16,
1991."

4.  OTHER TERMS AND CONDITIONS:
    --------------------------

              Except as expressly amended by this Amendment No. 2, the terms and
conditions of the Contract shall remain in full force and effect.

5.  EFFECTIVE DATE:
    --------------

              This Amendment No. 2 shall become effective when it has been duly
executed by the Parties.

                                       2

6.  SIGNATURE CLAUSE:
    ----------------

              The signatories hereto represent that they have been appropriately
authorized to enter into this Amendment No. 2 to the Contract on behalf of the
Party for whom they sign. This Amendment No. 2 is hereby executed as of this
20th day of December, 1989.

                                            SOUTHERN CALIFORNIA EDISON COMPANY

                                            By:/s/ Robert Dietch
                                               ---------------------------------
                                                         Robert Dietch
                                                         Vice President

                                            PACIFIC ENERGY

                                            By:   /s/ Robert J. Cushman
                                                  ------------------------------

                                            Name:  Robert J. Cushman
                                                  ------------------------------

                                            Title: Senior Vice President
                                                  ------------------------------

                                       3Exhibit 10.3.19

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

                                   APPENDIX A
               INTERCONNECTION FACILITIES AGREEMENT ("AGREEMENT")
                       SELLER OWNED AND OPERATED FACILITY

A.1      Seller acknowledges that Seller has read Edison's Tariff Rule No. 21
         and the Qualifying Facility Milestone Procedure ("QFMP") and
         understands Seller's obligations and the consequences to Seller for
         failure to meet any of the "milestones" in the QFMP which is in effect
         on the earlier of Seller's (1) payment of the Project Fee or to (2)
         execution of this Agreement.

A.2      In the event Seller loses its priority for existing available Edison
         line capacity, Seller shall, pursuant to Tariff Rule No. 21., be
         obligated to pay any additional cost for upgrades or additions
         necessary to accommodate Seller's deliveries. In such event, Edison and
         Seller shall amend this Agreement to reflect the conditions resulting
         from the change in priority.

A.3      Seller shall design, purchase, construct, operate and maintain Seller
         owned Interconnection Facilities as described on page A-10 herein, at
         its sole expense. Edison shall have the right to review the design as
         to the adequacy of the Protective Apparatus provided. Any additions or
         modifications required by Edison shall be incorporated by Seller.

A.4      Notwithstanding the provisions of Section 13, Seller, having elected to
         own, operate, and maintain the Interconnection Facilities, shall accept
         all liability and release Edison from and indemnify Edison against any
         liability for faults or damage to Seller's

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

         Interconnection Facilities, the Edison electric system and the public
         as a result of the operation of Seller's project.

A.5      Edison shall have the right to observe the construction of the
         Interconnection Facilities, and inspect said facilities after
         construction is completed at the Seller's expense.

A.6      Facilities which are deemed necessary by Edison for the proper and safe
         operation of the Interconnection Facilities and which Seller desires
         Edison to own and operate at Seller's expense shall be provided as
         appendant facilities. Edison shall own, operate and maintain any
         necessary appendant facilities which may be installed in connection
         with the Interconnection Facilities at Seller's expense. Edison may, as
         it deems necessary, modify the aforementioned facilities at Seller's
         expense.

A.7      For the appendant facilities, Edison shall install, own, operate, and
         maintain a portion of the appendant facilities ("Edison Installed
         Appendant Facilities"), as described on page A-10 herein, and Seller
         shall, pay to Edison the total estimated coat for these appendant
         facilities prior to the start of construction of the appendant
         facilities. In addition, Seller shall install at Seller's expense its
         portion of the appendant facilities ("Seller Installed Appendant
         Facilities"), as described on page A-10 herein, in accordance with Rule
         21. Within 30 days after installation is complete, Seller shall
         transfer ownership of the Seller Installed Appendant Facilities to
         Edison in a manner acceptable to Edison.

                                      A-2

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

A.8      Maintenance of facilities referred to in Section A.6 shall be paid by
         Seller pursuant to the attached Application and Contract for
                                         ----------------------------
         Interconnection Facilities Plus Operation and Maintenance
         ---------------------------------------------------------
         ("Application").

A.9      To the extent that Edison deems it necessary to effect the arrangements
         contemplated by this Agreement, Edison may, from time to time, request
         the Seller to design, install, operate, maintain, modify, replace,
         repair or remove any or all of the Interconnection Facilities. Such
         equipment and/or Protective Apparatus shall be treated as
         Interconnection Facilities and added to the Agreement by amendment
         pursuant to Section A.6.

A.l0     Edison shall have the right to review any changes in the design of the
         Interconnection Facilities and recommend modification(s) to the design
         as it deems necessary for proper and safe operation of the Project when
         in parallel with the Edison electric system. The Seller shall be
         notified of the results of such review by Edison, in writing, within 30
         days of the receipt of all specifications related to the proposed
         design changes. Any flaws perceived by Edison in the proposed design
         changes, shall be described in the written notice.

                                      A-3

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

             APPLICATION AND CONTRACT FOR INTERCONNECTION FACILITIES
                         PLUS OPERATION AND MAINTENANCE

               The undersigned Seller hereby requests the Southern California
Edison Company ("Edison") to provide the appendant facilities described on the
last page hereof and by this reference herein incorporated, hereinafter called
"Interconnection Facilities." Interconnection Facilities as defined and used
herein are a group of Added Facilities which have been designated as
Interconnection Facilities, to accommodate negotiation and preparation of
contracts for parallel generation projects. Interconnection Facilities, as are
Added Facilities, shall be provided in accordance with the applicable Tariff
Schedules of Edison. Such Interconnection Facilities are to be owned, operated
and maintained by Edison.

               In consideration of Edison's acceptance of this Application,
Seller hereby agrees to the following:

1.       Seller shall pay to Edison, prior to the start of construction of the
         Interconnection Facilities, the total estimated costs for the
         Interconnection Facilities as determined by Edison and entered on page
         A-11 hereof. In the event Seller abandons its plans for installation of
         such Interconnection Facilities, for any reason whatsoever, including
         failure to obtain any required permits, Seller shall reimburse Edison
         upon receipt of supporting documentation for any and all expenses
         incurred by Edison pursuant to this agreement with thirty (30) days
         after presentation of a bill.

                                      A-4

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

2.       Edison shall have the right to observe the construction of any
         Interconnection Facilities constructed by Seller and inspect and test
         said facilities after construction is completed at the Seller's
         expense.

3.       The parties also understand and agree that due to equipment acquisition
         lead time and construction time requirements, Edison requires a minimum
         of six (6) months from the time of authorization to construct the
         aforementioned Interconnection Facilities and place them in operation.
         Edison shall have no obligation to Seller with regard to any target
         date established by Seller which is less than eighteen (18) months from
         the date this Application is executed. However, Edison shall exercise
         its best effort to meet Seller's projected operational date.

4.       Seller shall pay a monthly charge for the Interconnection Facilities'
         operation and maintenance in the amount of 0.9% of the added equipment
         investment as determined by Edison and as entered by Edison on page
         A-11 hereof. The monthly charge shall be adjusted periodically in
         accordance with the pro-rata operation and maintenance charges for
         added facilities pursuant to Rule No. 2. The monthly charge may be
         based upon estimated costs of the Interconnection Facilities and when
         the recorded book cost of the Interconnection Facilities has been
         determined by Edison, the charges shall be adjusted retroactively to
         the date when service is first rendered by means of such
         Interconnection Facilities. Additional charges resulting from such
         adjustment shall, unless other terms are

                                      A-5

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

        mutually agreed upon, be payable within thirty (30) days from the date
        of presentation of a bill therefor. Any credits resulting from such
        adjustment will, unless other terms are mutually agreed upon, be
        refunded upon demand of Seller.

5.      Whenever a change is made in the Interconnection Facilities which
        results in changes in the added equipment investment, the monthly
        charge will be adjusted on the basis of the revised added equipment
        investment. The cost of such change shall be payable by Seller within
        sixty (60) days from the date of presentation of a bill thereof. The
        description of the Interconnection Facilities will be amended by Edison
        on page A-10 hereof to reflect any changes in equipment, installation
        and removal cost, amount of added equipment investment, and monthly
        charge resulting from any such change in the Interconnection Facilities
        or adjustment as aforesaid.

6.      The monthly charges payable hereunder shall commence upon the date when
        said Interconnection Facilities are available for use but not before
        service is first established and rendered through Edison's normal
        facilities and shall first be payable when Edison shall submit the first
        energy bill after such date and shall continue until the abandonment of
        such Interconnection Facilities by Seller, subject to the provisions of
        Paragraphs 4 and 5 hereof.

7.      Seller agrees to utilize said Interconnection Facilities in accordance
        with good operating practice and to reimburse Edison for damage to said
        Facilities occasioned or caused by the

                                 A-6

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

        Seller or any of his agents, employees or licensees. Failure so to
        exercise due diligence in the utilization of said Interconnection
        Facilities will give Edison the right to terminate this Agreement.

8.      Edison's performance under this Contract is subject to the availability
        of materials required to provide the Interconnection Facilities provided
        for herein and to all applicable Tariff Schedules of Edison.

9.      This Application and Contract for Interconnection Facilities supplements
        the appropriate application and contract(s) for electric service
        presently in effect between Seller and Edison.

10.     This Agreement shall at all times be subject to such changes or
        modifications by the Public Utilities Commission of the State of
        California as said Commission may, from time to time, direct in the
        exercise of its jurisdiction.

                                    A-7

                              SCE STANDARD CONTRACT
                            LONG-TERM POWER PURCHASE

SOUTHERN CALIFORNIA EDISON                      MAMMOTH PACIFIC
      COMPANY

By: /s/ Robert Dietch
    -----------------------------               By: /s/ Claude Harvey
        Robert Dietch                               ---------------------------
        Vice President                              Name: Claude Harvey
                                                          ---------------------
                                                    Title: Vice President
                                                           --------------------

Date:   October 27, 1989                            Date:  Oct. 20, 1989
        -------------------------                          --------------------

                                   A-8

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