Document:

FIRST AMENDMENT TO OPERATION AND MAINTENANCE AGREEMENT

     This FIRST AMENDMENT TO OPERATION AND MAINTENANCE AGREEMENT (this "First
Amendment") is made and entered into this 13 day of February, 2004, by and
between BRADY POWER PARTNERS, a general partnership of the State of Nevada, with
offices at 980 Greg Street, Sparks, Nevada 89431-6039 ("Owner"), ORMAT NEVADA
INC., a corporation incorporated in the State of Delaware, with offices at 980
Greg Street, Sparks, Nevada 89431-6039 ("Operator"), and WESTERN STATES
GEOTHERMAL COMPANY, a corporation incorporated in the State of Delaware, with
offices at 980 Greg Street, Sparks, Nevada 89431-6039 ("Additional Operator").

     WHEREAS, as of January 1, 2002, Owner and Operator entered into the
Operation and Maintenance Agreement for the operation and maintenance of the
geothermal power plants known as Brady and Desert Peak and associated wells by
Operator (the "Agreement"); and

     WHEREAS, the Parties wish to amend the Agreement so that for the period
commencing November 30, 2002 and ending upon execution of that certain sublease
between Operator and Owner which will provide certain access rights to the
geothermal power plant known as Desert Peak (the "Agency Term"), Additional
Operator becomes an additional party to the Agreement as the named operator of
the Desert Peak plant instead of Operator, and acting in its capacity as a
principal, appoints Operator as its agent to perform the operation and
maintenance of Desert Peak.

     NOW, THEREFORE, the parties hereto agree as follows:

     1. By executing this First Amendment, for the Agency Term, Additional
Operator becomes a party to the Agreement and the named operator of the Desert
Peak plant in accordance with the terms of the Agreement in lieu of Operator.

     2. With Owner's full knowledge and consent, Operator is hereby appointed by
Additional Operator as its agent, and Operator accepts such appointment, to
fulfill all of Additional Operator's obligations and liabilities under the
Agreement with respect to the operation and maintenance of Desert Peak for the
Agency Term.

     3. At the end of the Agency Term, Additional Operator shall cease to be
party to or obligated under the Agreement and Operator shall continue to fulfill
all of Operator's obligations and liabilities under the Agreement with respect
to the operation and maintenance of both the Brady and the Desert Peak plants as
an independent party, and no longer as agent of Additional Operator with respect
to Desert Peak.

     4. This First Amendment shall be effective and operative as of November 30,
2002 without need for any further consents or agreements.

Execution Copy

                                       1

     5. The Agreement, as amended by this First Amendment, constitutes the
entire agreement between the parties hereto relating to the subject matter
thereof and hereof and remains in full force and effect.

     IN WITNESS WHEREOF the parties have entered into this First Amendment to
Operation and Maintenance Agreement on the date first written above.

BRADY POWER PARTNERS                     WESTERN STATES
                                         GEOTHERMAL COMPANY

ORNI 1 LLC

By: /s/ Connie Stechman                  By: /s/ Connie Stechman
    ----------------------------------       -----------------------------------
Name: Connie Stechman                    Name: Connie Stechman
Title: Assistant Secretary               Title: Assistant Secretary
       Ormat Funding Corp. Member

ORMAT NEVADA INC.

By: /s/ Ran Raviv
    ----------------------------------
Name: Ran Raviv
Title: Vice President

Execution Copy

                                        2SPECIAL FACILITIES AGREEMENT

                                     BETWEEN

                          SIERRA PACIFIC POWER COMPANY

                                       AND

                             FAR WEST CAPITAL, INC.

                          SPECIAL FACILITIES AGREEMENT

                                     BETWEEN

                          SIERRA PACIFIC POWER COMPANY

                                       AND

                             FAR WEST CAPITAL, INC.

                                TABLE OF CONTENTS

Section   Title                                                             Page
-------   -----                                                             ----
    1     Recitals.......................................................     3
    2     Effective Date and Term........................................     4
    3     Services To Be Provided........................................     4
    4     Construction to be Completed by Far West.......................     5
    5     Changes in Scope...............................................     6
    6     Advances and Payment Schedule..................................     6
    7     Target Date....................................................     9
    8     Prior Approval and Design Review...............................     9
    9     Ownership......................................................    11
   10     Easements and Rights-of-Way....................................    11
   11     Rules and Regulations..........................................    12
   12     Notice.........................................................    12
   13     Successors in Interest.........................................    13
   14     Assignment.....................................................    13
   15     Collateral Assignments.........................................    13
   16     Force Majeure..................................................    13
   17     Parties' Representative........................................    14
   18     Liability and Indemnification..................................    15
   19     Insurance......................................................    15
   20     Entire Agreement...............................................    15
   21     Governing Law..................................................    16
   22     Multiple Originals.............................................    16

EXHIBIT A - One-Line Diagrams and Estimated Costs.

                                        2

In consideration of the premises and the mutual covenants and conditions
contained herein, the Parties agree as follows:

2.   Effective Date and Term. This Agreement shall be effective from the date of
     its execution by both Parties and shall continue thereafter until (a) the
     Power Purchase Agreement with Far West terminates, or (b) this Agreement is
     terminated upon mutual agreement of the Parties.

3.   Services to Be Provided. Sierra Pacific, at Far West's expense, shall
     perform the following:

     (a) Design, procure, construct, install, and inspect the following
     facilities and all associated equipment ("Interconnection Facilities") at
     the 24.9 kV bus at the Steamboat Substation located in Steamboat Springs,
     NV., and at the Project:

          Appropriate generation metering, backup metering, potential
          transformers, current transformers and associated equipment installed
          at the Project; and

          Modifications to the Steamboat Substation to open the 24.9 kV power
          circuit breaker connecting the Far West generating plant to the Sierra
          Pacific system grid in the event the 120 kV to 24.9 kV connection is
          open and modifications to the transformer regulator control Scheme to
          allow for automatic adjustment of the controls for the amount of
          generation.

     (b) Review the Far West design and installation of the protection and
     relaying scheme to be installed at the Project by Far West for the sole
     purpose of establishing that the

                                        4

     equipment installed is compatible with Sierra Pacific's electric system.

     (c) Sierra Pacific shall participate in and witness protection equipment
     testing.

Facilities and services described above shall be considered the entire scope of
work ("Scope of Work").

4.   Construction To Be Completed By Far West. Far West, at its own expense,
     shall perform the following:

     (a)  Design, procure, construct, install, and inspect protection and
          relaying equipment, and any other electrical equipment necessary at
          the Project.

     (b)  Far West will be responsible for:

          (1) Providing Sierra Pacific with adequate space and a suitable sealed
          enclosure to house metering, back up metering, potential transformers
          and current transformers at the Project site;

          (2) Providing design drawings and specifications to Sierra Pacific for
          the Project to be constructed by far West. Sierra Pacific shall review
          such drawings and specifications in accordance with Section 3 (b) and
          Section 8; and

          (3) Providing test reports to Sierra Pacific for equipment as
          necessary.

                                       5

5.   Changes in Scope. (a) If Far West determines that a change in the Scope of
     Work is desirable, a written request shall be issued by Far West, setting
     forth in reasonable detail the nature of the change requested.

     If Sierra Pacific determines that such change in Scope of Work is
     reasonable with respect to the impact of the change to the Sierra Pacific
     system, then Sierra Pacific shall prepare a written submittal detailing the
     effects, if any, upon the completion schedule and the total price to be
     paid by Far West.

     If Far West accepts such modifications to the total price and the
     completion schedule, it shall send a written request to Sierra Pacific to
     do the work associated with said change in Scope of the Work at the expense
     of Far West.

     If Far West does not accept such modifications to the total price and the
     completion schedule, Sierra Pacific will not perform the work associated
     with said change in Scope of Work.

     (b) If Sierra Pacific determines that a change in the Scope of Work is
     required, then Sierra Pacific shall prepare a written submittal detailing
     the requirement, the reason, and the effects, if any upon the completion
     schedule and total price to be paid by Far West.

6.   Advances and Payment Schedule. (a) Far West shall pay to Sierra Pacific the
     actual costs of the Scope of Work performed. The total estimated cost for
     the Scope of Work is $48,000 (the "Estimated Cost"), further described in
     Exhibit A, attached hereto and incorporated herein by reference. Far West
     shall advance the funds at the time of contract execution.

                                       6

     (b) If, during the term of this Agreement, Sierra Pacific determines that
     the Estimated Cost is insufficient to cover the Scope of Work, Sierra
     Pacific may replace Exhibit A with a revision to reflect such revised
     estimate. Far West shall, within thirty (30) days of written notice of such
     revised estimate, submit payment of the amount by which the new estimate
     exceeds the Estimated Cost (the "Increased Amount"). If payment of the
     Increased Amount is not received within thirty (30) days of written notice
     then Sierra Pacific reserves the right, upon written notification to Far
     West, to discontinue activities under this Agreement and Far West shall pay
     the actual costs associated with such discontinuance and any resulting
     renewal of activities hereunder.

     (c) In the event this Agreement is terminated prior to completion of the
     Scope of Work for any reason other than negligence or willful misconduct of
     Sierra Pacific, Far West shall pay any equipment or cancellation charges
     and other costs resulting from such noncompletion.

     (d) Within four (4) months after completion of the Scope of Work, Sierra
     Pacific will determine the actual cost thereof. Actual costs shall be those
     costs recorded in the book of accounts kept by Sierra Pacific. If the
     actual cost exceeds the Estimated Cost plus any Increased Amount, Sierra
     Pacific will bill to Far West, and Far West shall pay said difference to
     Sierra Pacific within thirty (30) days of receipt of said bill. If the
     actual cost is less than the Estimated Cost plus any Increased Amount,
     Sierra Pacific shall refund the difference to Far West within thirty (30)
     days after the difference is determined. The actual cost shall replace the
     estimated cost in Exhibit A for determination of the tax liability, if any.

                                       7

     (e) All records relating to the Scope of Work will at all reasonable times,
     and for a period of one year following completion of the installation of
     the Interconnection Facilities, be available for inspection and audit by
     far West.

     (f) All or a portion of the payments received by Sierra Pacific for the
     facilities installed pursuant to this Agreement and the cost of equipment
     that is contributed to Sierra Pacific pursuant to this Agreement ("Taxable
     Facilities") may be considered taxable income pursuant to Internal Revenue
     Service (IRS) regulations. Far West shall pay Sierra Pacific sufficient
     funds to equal the amount of any tax liability incurred by Sierra Pacific,
     including penalty or interest associated with delayed or late payments of
     such tax. Pursuant to the PSCN Opinion and Order in Docket 87-126, Sierra
     Pacific has filed a request for a revenue ruling from the IRS. It is
     expected that such ruling will provide Sierra Pacific and Far West with a
     definitive interpretion of the pertinent tax law and the tax liability, if
     any, that applies to payments made to Sierra Pacific in cash or facilities
     pursuant to this Agreement.

     Within 30 days of execution of this Agreement, Far West shall provide
     Sierra Pacific with: (1) Security in the form of an insurance policy, an
     irrevocable letter of credit, a bond, or any other form of security
     acceptable to Sierra Pacific listing Sierra Pacific as the beneficiary,
     equal to the potential tax liability of 52% of $48,000 which is $24,960 or
     (2) cash in the amount of the potential tax liability specified in (1).

     As soon as reasonably practicable, after the issuance of a ruling by the
     IRS, Sierra Pacific shall determine the amount of Sierra Pacific's tax
     liability associated with the

                                        8

     facilities described above, if any, and shall bill Far West for such amount
     including any interest or penalties accruing to the unpaid tax liability.
     Far West shall submit such amount to Sierra Pacific within 30 days after
     the receipt of the bill. If Far West does not submit such amount, Sierra
     Pacific will immediately call upon the security established by Far West
     as the means of payment of Far West's obligation.

     (g) Sierra Pacific will pay Far West annually, during the period commencing
     in the first year subsequent to payments under Section 6(f) by Far West and
     continuing until the earlier of (1) the date the Power Purchase Agreement
     terminates or (2) the date the Taxable Facilities are fully depreciated, an
     amount equal to the annual tax benefit derived from Sierra Pacific's
     depreciation of the Taxable Facilities as a result of the Taxable
     Facilities being an asset on its system. Such payment shall be made on or
     before October 1 of each year. If Sierra Pacific is relieved of the tax
     liability under Section 6(f), the payment to Far West under this Section
     shall terminate effective with the relief date of the tax liability.

7.   Target Date. Sierra Pacific shall exercise its best efforts to complete the
     Scope of Work on or before October 19, 1988. However, Sierra Pacific shall
     have no liability for failure to meet this target date.

8.   Prior Approval and Design Review. (a) Equipment specifications and detailed
     plans for the installation of the interconnection facilities, control and
     protective devices, and facilities to accommodate Sierra Pacific's meters
     must be submitted to Sierra Pacific for review and advance written
     acceptance or approval prior to actual installation. Sierra Pacific shall
     notify Far West in writing of the outcome of its review within sixty (60)
     days of receipt of such spec-

                                        9

     ifications and plans. Such review and written acceptance or approval are
     for the sole purpose of insuring that the facilities are compatible with
     Sierra Pacific's electrical system and shall not be unreasonably delayed or
     withheld. Sierra Pacific shall not, by reason of such review or failure to
     review, be responsible for strength, details of design, adequacy, or
     capability of any of Far West facilities or equipment, nor shall Sierra
     Pacific's written acceptance or approval be deemed an endorsement of such
     facilities or any item of equipment. Far West and Sierra Pacific
     acknowledge that the equipment specifications and detail plans submitted to
     Sierra Pacific are intended only for the specific site and installation of
     the Project as described in this Agreement.

     (b) If additional equipment is necessary to complete the interconnection of
     the Project with Sierra Pacific's electrical system, Sierra Pacific shall
     provide Far West with written notice, setting forth in detail the nature
     and type of additional equipment required, and the reasons therefore. Far
     West will be responsible for the costs of purchasing and installing such
     additional equipment. If such additions are to be installed on or in place
     of Sierra Pacific owned facilities, Sierra Pacific will perform the
     purchase and installation of such facilities at the cost of Far West.

     (c) Sierra Pacific's obligation to interconnect the Project is contingent
     upon the approval of plans and specifications described above. Far West
     shall not make any modification to its facilities, protection or control
     equipment, or any other equipment which affects the delivery of electricity
     without advance written notification to Sierra Pacific. Sierra Pacific
     shall then have sixty (60) days from the receipt of such notification to
     review such modifications subject to the terms and conditions set forth in
     Section 8(a) above, and to notify Far West in writing of the outcome of its
     review.

                                       10

11.  Rules and Regulations. This Agreement has been made by Sierra Pacific
     pursuant to its rules and regulations governing all matters contained
     herein, filed with and approved by the Public Service Commission of Nevada,
     ("PSCN"), and this Agreement is subject to any changes or modifications to
     such rules and regulations as well as any applicable decisions and orders
     made by the PSCN.

12.  Notice. Whenever in this Agreement it shall be required, permitted, or
     desired that notice or demand be given by either Party to or on the other,
     including notice of change of address of either Party, such notice or
     demand shall be in writing and may be either personally served or sent by
     United States mail and shall be deemed to have been given when personally
     served or when deposited in the United States mail, certified or
     registered, with postage prepaid, and properly addressed. For the purposes
     hereof the addresses of the parties hereto (until notice of change thereof
     is given as provided in this paragraph) shall be as follows:

If to Sierra Pacific:

                        Sierra Pacific Power Co.
                        Manager, Power and Fuel Contracts
                        6100 Neil Road, Reno, NV 89511
                        P.O. Box 10100,
                        Reno, NV 89520
                        Phone: (702) 689-4889
                        Telecopy: (702) 689-4202

If to Far West:

                        Far West Capital
                        Thomas A. Quinn
                        1135 East South Union Ave.
                        Midvale, Utah 84047
                        Phone: (801) 566-7771
                        Telecopy: (801) 562-5541

                                       12

13.  Successors in Interest. This Agreement shall be binding on both Parties,
     and on their heirs, successors in interest and permitted assigns; except as
     provided in Section 15 below.

14.  Assignment. Subject to Section 15 below, neither Party shall voluntarily
     assign this Agreement without the prior written consent of the other Party.
     Such consent shall not be unreasonably delayed or withheld.

15.  Collateral Assignments. Either Party shall have the right, without the
     other Party's consent, but with a thirty (30) day prior written notice to
     the other Party, to make a collateral assignment of its rights under this
     Agreement to satisfy the requirements of any development, construction, or
     other long-term financing.

A collateral assignment as described above shall not constitute a delegation of
Seller's obligations under this Agreement, and this Agreement shall not bind the
collateral assignee. Any collateral assignee succeeding to any portion of the
ownership interest of Seller in the Project shall be considered Seller's
successor in interest and shall thereafter be bound by this Agreement.

16.  Force Majeure. (a) The term Force Majeure as used herein means
     unforeseeable causes beyond the reasonable control of and without the fault
     or negligence of the party claiming Force Majeure including, but not
     limited to, acts of God, labor disputes, sudden actions of the elements,
     actions by federal, state, and municipal agencies; and actions of
     legislative, judicial, or regulatory bodies which prohibit or seriously
     impede performance under or compliance with the terms of this Agreement.

                                       13

21.  Governing Law. This Agreement shall be interpreted, governed by and
     construed according to the laws of the State of Nevada, as if executed and
     to be performed wholly within the State of Nevada. Any litigation by the
     Parties as to this Agreement shall be in a court of competent jurisdiction
     in the State of Nevada.

22.  Multiple Originals. Two copies of this Agreement have been executed by the
     Parties. Each executed copy shall be deemed an original.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement on this
29th day of October, 1988.

Sierra Pacific:                         Seller:

SIERRA PACIFIC POWER COMPANY            FAR WEST CAPITAL, INC.

by /s/ Illegible                        by /s/ Illegible
   ----------------------------------      -------------------------------------

TITLE   VICE PRESIDENT                  TITLE Illegible
      ELECTRIC RESOURCES                 DATE 10-27-88

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  APPVD.
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