Ormat Funding S-4/A Registration of securities issued in business combination transactions (amended)

                                                               EXECUTION VERSION


                                    GUARANTEE

         For value received, each Guarantor (which term includes any successor
Person under the Indenture) has, jointly and severally, unconditionally
guaranteed, to the extent set forth in the Indenture and subject to the
provisions in the Indenture dated as of February 13, 2004 (the "Indenture")
among Ormat Funding Corp., the Guarantors listed on the signature page thereto,
Ormesa LLC and Union Bank of California, N.A., as trustee (the "Trustee"), (a)
the due and punctual payment of the principal of, premium, Liquidated Damages,
if any, and interest on the Senior Secured Notes (as defined in the Indenture),
whether at maturity, by acceleration, redemption or otherwise, the due and
punctual payment of interest on overdue principal, premium, Liquidated Damages,
and, to the extent permitted by law, interest, and the due and punctual
performance of all other obligations of the Issuer to the Holders or the Trustee
all in accordance with the terms of the Indenture and (b) in case of any
extension of time of payment or renewal of any Senior Secured Notes or any of
such other obligations, that the same will be promptly paid in full when due or
performed in accordance with the terms of the extension or renewal, whether at
stated maturity, by acceleration or otherwise. The obligations of the Guarantors
to the Holders of Senior Secured Notes and to the Trustee pursuant to the
Guarantee and the Indenture are expressly set forth in Article IX of the
Indenture and reference is hereby made to the Indenture for the precise terms of
the Guarantee. Each Holder of a Senior Secured Note, by accepting the same, (a)
agrees to and shall be bound by such provisions and (b) appoints the Trustee
attorney-in-fact of such Holder for such purpose.

                            [Signature Page Follows]














                                           ORMESA LLC


                                           By:  ORMAT FUNDING CORP.,
                                           sole member and manager of Ormesa LLC


                                           By: /s/ Yehudit Bronicki
                                               ---------------------------------
                                           Name: Yehudit Bronicki
                                           Title: President
                                           Date: 12-31-2004