Document:

EX-4.25

 Exhibit 4.25 

IDACORP, INC. 
 TO 

DEUTSCHE BANK TRUST COMPANY AMERICAS, 

Trustee 
  

 
 SUPPLEMENTAL
INDENTURE 
 Dated as of
                     
 TO 

INDENTURE 
 Dated as of
February 1, 2001 
 SENIOR DEBT SECURITIES 
  

 

 SUPPLEMENTAL INDENTURE dated as of
                     made and entered into by and between IDACORP, INC., a corporation of the State of Idaho (hereinafter, subject to
Article XI of the Indenture, called the “Issuer” or the “Company”), having its principal office at 1221 West Idaho Street, Boise, Idaho 83702-5627, and DEUTSCHE BANK TRUST COMPANY AMERICAS, formerly known as Bankers
Trust Company, a banking corporation organized and existing under the laws of the State of New York, as Trustee (hereinafter, subject to Article VII of the Indenture, called the “Trustee”), having its principal office at 60 Wall
Street, New York, New York 10005, as Trustee under the Indenture for Senior Debt Securities dated as of February 1, 2001 executed and delivered by IDACORP, Inc. 

WHEREAS the Indenture dated as of February 1, 2001 (herein with all indentures supplemental thereto called the “Indenture”)
provides for the issuance of notes, debentures or other evidences of its indebtedness in one or more series (hereinafter called the “Securities”), unlimited in aggregate principal amount; 

WHEREAS the Indenture provides in Article III thereof that, prior to the issuance of Securities of any series, the form of such
Securities and the terms applicable to such series shall be established in, or pursuant to, the authority granted in a resolution of the Board of Directors (delivered to the Trustee in the form of a Board Resolution) or established in one or more
indentures supplemental thereto; 
 WHEREAS the Issuer desires by this
                     Supplemental Indenture, among other things, to establish the form of the Securities of a series, to be titled “
                     Notes, Series
                    ” of the Issuer, and to establish the terms applicable to such series, pursuant to Sections 3.1 and 10.1(e) of the
Indenture; 
 WHEREAS the execution and delivery of this
                     Supplemental Indenture by the parties hereto are in all respects authorized by the provisions of the Indenture; and 

WHEREAS all things necessary have been done to make this
                     Supplemental Indenture a valid agreement of the Issuer, in accordance with its terms. 

NOW, THEREFORE, THIS                     
SUPPLEMENTAL INDENTURE WITNESSETH: 
 For and in consideration of the premises, it is mutually covenanted and agreed, as follows: 

ARTICLE I. 

                    Notes, Series 

SECTION 1.    The title of the series of the Securities established by this
                     Supplemental Indenture shall be “
                     Notes, Series
                    , due
                    ” of the Issuer (hereinafter called the “Series
                     Notes”). The Series
                     Notes shall be substantially in the form set forth in Exhibit A hereto (which is hereby incorporated herein and made a part
hereof), subject to changes in the form thereof made by the Issuer and acceptable to the Trustee. 

SECTION 2.    The Series
                     Notes shall be issued from time to time in an aggregate principal amount not to exceed
$        . 
 SECTION 3.    The Series
                     Notes may be issued in whole or in part as one or more Global Securities and The Depository Trust Company, or a nominee thereof,
shall be the Depository for such Global Security or Global Securities, except in each case as otherwise provided in an Issuer Order with respect to any Series
                     Notes. The Depository for such Global Security or Global Securities representing Series
                     Notes may surrender one or more Global Securities representing Series
                 Notes in exchange in whole or in part for individual Series
                     Notes on such terms as are acceptable to the Issuer and such Depository and otherwise subject to the terms of Section 2.4
of the Indenture. 

  
 1 

 SECTION 4.    The Issuer hereby appoints, or confirms the
appointment of, Deutsche Bank Trust Company Americas as the initial Trustee, Securities Registrar and Paying Agent, subject to the provisions of the Indenture with respect to resignation, removal and succession, and subject, further, to the right of
the Issuer to appoint additional agents (including Paying Agents). An Authenticating Agent may be appointed for the Series                     
Notes under the circumstances set forth in, and subject to the provisions of, the Indenture. 
 SECTION 5.    The
terms of the Series                      Notes shall be as set forth in Exhibit A hereto, and shall include the payment and other terms
reflected on the respective Series                      Notes as actually executed, authenticated and delivered under the
Indenture. Notwithstanding the foregoing, specific terms of particular Series                      Notes (any redemption, sinking fund or other
repayment terms that differ from the provisions of Article XIV or XV of the Indenture and any terms for satisfaction and discharge of the Indenture that differ from the provisions of Article XII of the Indenture) may be determined in
accordance with or pursuant to the Issuer Order with respect thereto, as referred to in Section 3.3 of the Indenture. 

ARTICLE II. 
 Miscellaneous
Provisions 
 SECTION 1.    The recitals contained herein shall be taken as the statements of the Issuer, and the
Trustee assumes no responsibility for the correctness of the same. The Trustee shall not be responsible for and makes no representation as to the validity, execution by any party other than the Trustee or sufficiency of this
                     Supplemental Indenture. The Indenture, as supplemented by this
                     Supplemental Indenture, is in all respects hereby adopted, ratified and confirmed. 

SECTION 2.    The titles of the several Articles of this
                     Supplemental Indenture shall not be deemed to be any part hereof. 

SECTION 3.    This
                     Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an
original, but all such counterparts shall together constitute but one and the same instrument. 

SECTION 4.    Capitalized terms used and not otherwise defined in
this                      Supplemental Indenture shall have the meanings ascribed thereto in the Indenture. 

SECTION 5.    In case any provision in
this                      Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality, and enforceability of the
remaining provisions shall not in any way be affected or impaired thereby. 

SECTION 6.    This                
      Supplemental Indenture and any Securities issued hereunder shall be governed by and construed in accordance with the laws of the State of Idaho, except that the obligations, rights and remedies of the Trustee hereunder
shall be determined under the laws of the State of New York. 
 SECTION 7.    The Issuer represents and warrants to
the Trustee that this                      Supplemental Indenture has been duly and validly executed and delivered by the Issuer and constitutes
the Issuer’s legal, valid and binding obligation, enforceable against the Issuer in accordance with its terms. 

SECTION 8.    The Trustee shall be entitled to all of the same rights, protections, immunities and indemnities set
forth in the Indenture as if specifically set forth herein. 

SECTION 9.    This                
      Supplemental Indenture shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns. 

SECTION 10.    In order to comply with laws, rules, regulations and executive orders in effect from time to time
applicable to banking institutions, including those relating to the funding of terrorist activities and money laundering, the Trustee is required to obtain, verify and record certain information relating to individuals and

  
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entities which maintain a business relationship with the Trustee. Accordingly, each of the parties hereto agrees to provide to the Trustee upon its reasonable request from time to time
identifying information and documentation as may be reasonably available to it in order to enable the Trustee to comply with such laws, rules, regulations and executive orders.

  
 3 

 IN WITNESS WHEREOF, the parties hereto have caused this
                     Supplemental Indenture to be duly executed. 

 

			
	IDACORP, INC.
		
	By	 	  

		 	Name:
		 	Title:
	
	 DEUTSCHE BANK TRUST COMPANY

AMERICAS, not in its individual capacity,
 but solely as
Trustee

		
	By	 	  

		 	Name:
		 	Title:

  
 4 

			
	STATE OF IDAHO	 	                    )
		 	                    ) ss.:
	COUNTY OF ADA	 	                    )

 At Boise, ID, on this      day of
             20    , before me, a Notary Public in and for the County of Ada and State of Idaho, personally appeared
                    , the                     ,
of IDACORP, Inc., to me personally known, who executed the foregoing instrument on behalf of said corporation, and acknowledged the same to be his free act and deed in his said capacity and the free act and deed of IDACORP, Inc. 

 

	
	  
 Notary Public

  

			
	My Commission Expires:	 	  

  
 5 

 EXHIBIT A 

FORM OF NOTE 
 Registered 

No. 
 CUSIP 

[LEGENDS, IF ANY] 

IDACORP, Inc. 

                    Note, Series 

[    % Fixed Rate Note] 
  

			
	Original Issue Date:	  	Principal Amount:
	Interest Accrual Date:	  	Issue Price:
	Interest Payment Dates:	  	
	Maturity Date:	  	
	Redemption Date(s):	  	Redemption Price(s):
	Repayment Date(s):	  	Repayment Price(s):

 IDACORP, Inc., an Idaho corporation (the “Company”, which term includes any successor issuer
under the Indenture hereinafter referred to), for value received hereby promises to pay to                      or registered assigns, the principal
sum of                      Dollars ($        ) on the “Maturity Date”, as set forth above, and to
pay interest hereon as described herein. 
 The principal of (and premium, if any) and interest on this Note are payable by the Company in
such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts. 

REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS NOTE SET FORTH BELOW, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES HAVE THE SAME
EFFECT AS IF SET FORTH AT THIS PLACE. 
 Unless the certificate of authentication hereon has been manually executed by or on behalf of the
Trustee under the Indenture, this Note shall not be entitled to any benefit under the Indenture, or be valid or obligatory for any purpose. 

IN WITNESS WHEREOF, IDACORP, Inc. has caused this instrument to be signed in its corporate name by the signatures or facsimile
signatures of its President or a Vice President, and its Treasurer or an Assistant Treasurer, and its corporate seal or a facsimile hereof to be hereon impressed, engraved or imprinted and attested by such signature or facsimile signature of its
Secretary or an Assistant Secretary. 
 IDACORP, Inc. 

                    Note, Series 

1.    This Note is one of a duly authorized issue of debt securities (hereinafter called the “Securities”) of
the Company of the series hereinafter specified, all such Securities issued and to be issued under an Indenture dated as of February 1, 2001 between the Company and Deutsche Bank Trust Company Americas, formerly known as Bankers Trust Company,
as Trustee (herein called the “Trustee”, which term includes any successor trustee under the Indenture), as amended and supplemented by the First Supplemental Indenture dated as 

  
 A-1 

 
of February 1, 2001 and the                      Supplemental Indenture dated as of
                     (herein called, the “Indenture”), to which Indenture reference is hereby made for a statement of rights and
limitations of rights thereunder of the Holders of the Securities and of the rights, obligations, duties and immunities of the Trustee and of the Company, and the terms upon which the Securities are and are to be authenticated and delivered. As
provided in the Indenture, the Securities may be issued in one or more series which different series may be issued in various aggregate principal amounts, may mature at different times, may bear interest, if any, at different rates, may be subject
to different redemption provisions, if any, may be subject to different sinking, purchase or analogous funds, if any, may be subject to different covenants and Events of Default and may otherwise vary as in the Indenture provided or
permitted. This Note is one of a series designated as                      Note,
Series                    , [due
                    ] (the
“Series                     Notes”) limited to $         in aggregate principal amount. The
Series                    Notes may be issued at various times with different maturity dates and different principal repayment provisions, may bear
interest at different rates, and may otherwise vary, all as provided in the Indenture. 
 2.    A. The record date
(the “Regular Record Date”) with respect to any Interest Payment Date (as defined below) shall be the close of business on [the last day of the calendar month] [the fifteenth day of the calendar month] preceding such Interest Payment Date,
whether or not such date shall be a Business Day (unless otherwise set forth herein). Interest that is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid to the person in whose name this Note is
registered at the close of business on the Regular Record Date immediately preceding such Interest Payment Date; provided, however, that the first payment of interest on any Note with an Original Issue Date between a Regular Record Date and the
succeeding Interest Payment Date will be made on the Interest Payment Date following the immediately succeeding Regular Record Date to the registered owner on such immediately succeeding Regular Record Date; and provided, further, that interest
payable at Maturity will be payable to the person to whom principal shall be payable. “Maturity” means the date on which the principal amount hereof becomes due and payable, whether at Stated Maturity or earlier by declaration of
acceleration, call for redemption or otherwise. Notwithstanding the foregoing, any interest that is payable but not punctually paid or duly provided for on any Interest Payment Date shall forthwith cease to be payable to the registered owner
hereof on such Regular Record Date, and may be paid to the person in whose name this Note is registered at the close of business on a subsequent record date established by notice given by mail, by or on behalf of the Company to such Holder not less
than fifteen days preceding such subsequent record date, such record date to be not less than ten days preceding the date for payment of such defaulted interest, or may be paid as more fully provided in the Indenture. “Business Day”
means any day, other than a Saturday or Sunday, that is not a day on which banking institutions are authorized or required by law or regulation to be closed in The City of New York. 

B.    The Company promises to pay interest on the principal amount from its Original Issue Date at the rate per annum
stated on the face hereof until the principal amount hereof is paid or made available for payment. Unless otherwise provided herein, the Company will pay interest semi-annually each
                     and                     
(each an “Interest Payment Date”), commencing (except as set forth above in the case of a Note with an Original Issue Date between a Regular Record Date and an Interest Payment Date) with the Interest Payment Date immediately following the
Original Issue Date and at Maturity. If any Interest Payment Date would otherwise be a day that is not a Business Day, such Interest Payment Date shall be postponed to the next day that is a Business Day, and no interest shall accrue by reason
of such delayed payment. Each payment of interest in respect of an Interest Payment Date shall include interest accrued to but excluding such Interest Payment Date. Interest on Fixed Rate
Series                     Notes shall be computed on the basis of a 360-day year of twelve 30-day months (unless otherwise specified herein). 
 3.    Payments of interest
(other than interest payable at Maturity) will be made by mailing a check to the Holder at the address of the Holder appearing on the Securities Register of the Company on the applicable Regular Record Date, unless otherwise determined by the
Company. The principal amount hereof and any premium and the interest payable at Maturity will be paid at Maturity against presentation of this Note at the office or agency of the Company maintained for that purpose in the Borough of Manhattan,
The City of New York, or as otherwise provided in the Indenture. 
 4.    If specified above, this Note may be redeemed,
as a whole or from time to time in part, at the option of the Company, on not less than 30 days’ prior notice given as provided in the Indenture, on any Redemption Date(s) and at the related Redemption Price(s) (expressed as a
percentage of the principal amount 

  
 A-2 

 
hereof) set forth on the face hereof, together with interest accrued and unpaid hereon to such Redemption Date. If no such Redemption Date is set forth on the face hereof, this Note may not
be so redeemed prior to the Maturity Date specified on the face hereof. If fewer than all the Outstanding Series                     Notes of
like tenor and terms are to be redeemed, the particular Series                     Notes to be redeemed shall be selected by the Trustee not more
than 60 days prior to the Redemption Date from the Outstanding Series                     Notes of like tenor or terms not previously called for
redemption. Such selection shall be of principal amounts in increments of $1,000. Subject to the immediately preceding sentence, such selection shall be made by lot. The notice of such redemption shall specify which
Series                     Notes are to be redeemed. In the event of redemption of this Note in part only, a new Note or Notes of this series of
like tenor or terms for the unredeemed portion hereof will be issued to the Holder hereof upon the cancellation hereof. 

5.    If specified above, this Note will be subject to repayment at the option of the Holder hereof on the Repayment
Date(s) and at the related Repayment Price(s) (expressed as a percentage of the principal amount hereof) indicated on the face hereof. If no such Repayment Date is set forth on the face hereof, this Note may not be so repaid prior to
the Maturity Date specified on the face hereof. On each Repayment Date, if any, this Note shall be repayable in whole or in part at the option of the Holder hereof at the applicable Repayment Price set forth on the face hereof, together with
interest accrued and unpaid hereon to such Repayment Date. In order for this Note to be repaid in whole or in part at the option of the Holder hereof, the Paying Agent must receive not less than 30 but not more than 45 days prior to the Repayment
Date (i) the Note with the form entitled “Option to Elect Repayment” below duly completed or (ii) a facsimile transmission or a letter from a member of a national securities exchange or the National Association of Securities
Dealers, Inc. or a commercial bank or a trust company in the United States of America setting forth the name of the Holder of the Note, the principal amount of the Note, the certificate number of the Note or a description of the Note’s
tenor or terms, the principal amount of the Note to be repaid, a statement that the option to elect repayment is being exercised thereby and a guarantee that the Note to be repaid with the form entitled “Option to Elect Repayment” on the
reverse of the Note duly completed will be received by such Paying Agent no later than five Business Days after the date of such facsimile transmission or letter and such Note and form duly completed are received by such Paying Agent by such fifth
Business Day. Exercise of such repayment option shall be irrevocable. Such option may be exercised by the Holder for less than the entire principal amount provided that the principal amount remaining outstanding after repayment is an
authorized denomination. 
 6.    If an Event of Default with respect to the
Series                     Notes shall occur and be continuing, the principal of all of the
Series                     Notes may be declared due and payable in the manner and with the effect provided in the Indenture. 

7.    The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of
the rights and obligations of the Company and the rights of the Holders of the Securities under the Indenture at any time by the Company with the consent of the Holders of not less than a majority in principal amount of the Securities at the time
Outstanding of all series to be affected thereby (voting as one class). The Indenture also contains provisions permitting the Holders of a majority in aggregate principal amount of the Securities of any series at the time Outstanding, on behalf
of the Holders of all Securities of such series, to waive past defaults or certain Events of Default under the Indenture, with certain exceptions as therein provided, and their consequences with respect to such series, prior to the acceleration with
respect to the Securities of such series. In the case of any such waiver, the Holder of this Note shall be restored to his former position and rights hereunder, such default shall cease to exist and be deemed to have been cured and not to have
occurred, and any related Event of Default shall be deemed to have been cured, and not to have occurred for every purpose of the Indenture; but no such waiver shall extend to any subsequent or other default or Event of Default or impair any right
consequent thereon. 
 8.    No reference herein to the Indenture and no provision of this Note or of the Indenture
shall affect or impair the obligation of the Company, which is unconditional and absolute, to pay the principal of and premium, if any, and interest on this Note at the places, at the times, at the rates, in the amounts and in the coin or currency
as prescribed herein and in the Indenture. 

9.    Series                  
   Notes will be issued in denominations of $1,000 and integral multiples of $1,000 in excess thereof. 

  
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 10.    As provided in the Indenture and subject to certain limitations
therein set forth, this Note is transferable on the Securities Register of the Company, upon surrender of this Note for registration of transfer at the office or agency of the Company to be maintained for that purpose in The City of New
York. Every Note presented for registration of transfer shall (if so required by the Company or the Securities Registrar) be duly endorsed, or accompanied by a written instrument of transfer in form satisfactory to the Company and the
Securities Registrar duly executed, by the Holder hereof or its attorney duly authorized in writing, and thereupon one or more new
Series                     Notes of like tenor and terms of authorized denominations and for the same aggregate principal amount will be issued to
the designated transferee or transferees. 
 The Company shall not be required (i) to issue, register the transfer of or exchange
Series                     Notes to be redeemed for a period of fifteen days preceding the date of the mailing of the notice of redemption or
(ii) to register the transfer of or to exchange any such Note or portion thereof selected for redemption, except the unredeemed portion of any such Note being redeemed in part. 

No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to
cover any tax or other governmental charge payable in connection therewith. Prior to due presentment of a Note for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the person in whose name
a Note is registered as the owner hereof for all purposes whether or not such Note be overdue and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 

11.    Unless otherwise defined herein, all terms used in this Note which are defined in the Indenture shall have the
meaning assigned to them in the Indenture. 
 12.    This Note shall for all purposes be governed by, and construed in
accordance with, the laws of the State of Idaho. 
  

			
	IDACORP, INC.
		
	By:	 	  

		 	Name:
		 	Title:
		
	By:	 	  

		 	Name:
		 	Title:

  
 A-4 

 Trustee’s Certificate of Authentication 

Dated: 
 This is one of the Securities of the series designated
herein referred to in the within- mentioned Indenture. 
  

			
	DEUTSCHE BANK TRUST COMPANY AMERICAS,         as Trustee
		
	By:	 	  

		 	Authorized Signatory

  
 A-5 

 ASSIGNMENT 

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto 

Please insert social security or other identifying number 

Please print or typewrite name and address of assignee 
 the
within Note, of IDACORP, Inc. and does hereby irrevocably constitute and appoint                      attorney to transfer the said Note on the
books of the within-mentioned Company, with full power of substitution in the premises. 
  

					
	Dated:	 	  
	  	  

		 		  	Notice: The signature on this assignment must correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatsoever.

  
 A-6 

 OPTION TO ELECT REPAYMENT* 

The undersigned hereby irrevocably requests and instructs the Company to repay the within Note (or portion hereof specified below) pursuant to
its terms at a price equal to the applicable Repayment Price thereof together with interest to the Repayment Date, to the undersigned at 

Please print or typewrite name and address of the undersigned 

If less than the entire principal amount of the within Note is to be repaid, specify the portion thereof that the Holder elects to have repaid
                     and specify the denomination or denominations (which shall be in authorized denominations) of the
Series                     Notes to be issued to the Holder for the portion of the within Note not being repaid (in the absence of any such
specification, one such Note will be issued for the portion not being repaid):                    . 

 

					
	Date:	 	  
	  	  

		 		  	Signature

  
  

	* Note:	 This option is not available to a holder unless this Note contains an express provision granting to the
holder hereof an option to elect repayment. 

  
 A-7EX-4.27

 Exhibit 4.27 

IDAHO POWER COMPANY 
 TO 

DEUTSCHE BANK TRUST COMPANY AMERICAS, 

Trustee 
 SUPPLEMENTAL INDENTURE

 Dated as of 
 TO 

INDENTURE 
 Dated as of
August 1, 2001 
 DEBT SECURITIES 
  

 

 SUPPLEMENTAL INDENTURE dated as of
                     made and entered into by and between IDAHO POWER COMPANY, a corporation of the State of Idaho (hereinafter, subject to
Article XI of the Indenture, called the “Issuer” or the “Company”), having its principal office at 1221 West Idaho Street, Boise, Idaho 83702-5627, and DEUTSCHE BANK TRUST COMPANY AMERICAS (formerly known as Bankers
Trust Company), a banking corporation organized and existing under the laws of the State of New York, as Trustee (hereinafter, subject to Article VII of the Indenture, called the “Trustee”), having its principal office at 60 Wall
Street, New York, New York 10005, as Trustee under the Indenture for Debt Securities dated as of August 1, 2001 executed and delivered by Idaho Power Company. 

WHEREAS the Indenture dated as of August 1, 2001 (herein with all indentures supplemental thereto called the “Indenture”),
provides for the issuance of notes, debentures or other evidences of its indebtedness in one or more series (hereinafter called the “Securities”), unlimited in aggregate principal amount; 

WHEREAS the Indenture provides in Article III thereof that, prior to the issuance of Securities of any series, the form of such
Securities and the terms applicable to such series shall be established in, or pursuant to, the authority granted in a resolution of the Board of Directors (delivered to the Trustee in the form of a Board Resolution) or established in one or more
indentures supplemental thereto; 
 WHEREAS the Issuer desires by this Supplemental Indenture, among other things, to establish the form of
the Securities of a series of the Issuer, and to establish the terms applicable to such series, pursuant to Sections 3.1 and 10.1(e) of the Indenture; 

WHEREAS the execution and delivery of this Supplemental Indenture by the parties hereto are in all respects authorized by the provisions of
the Indenture; and 
 WHEREAS all things necessary have been done to make this Supplemental Indenture a valid agreement of the Issuer, in
accordance with its terms. 
 NOW, THEREFORE, THIS
                    SUPPLEMENTAL INDENTURE WITNESSETH: 

For and in consideration of the premises, it is mutually covenanted and agreed, as follows: 

ARTICLE I. 

                    Notes, Series 

SECTION 1. The title of the series of the Securities established by this Supplemental Indenture shall be
“                    Notes,
Series                    , due
                    ” of the Issuer (hereinafter called the
“Series                    Notes”). The
Series                     Notes shall bear interest (computed on the basis of a 360-day year of twelve 30-day months) until the principal amount thereof has been duly paid or provided for in full, at a rate per annum equal to     % and at the same rate per annum on any overdue principal or (to the
extent legally enforceable) on any overdue installment of interest (the “Overdue Rate”). 
 SECTION 2. The
Series                    Notes shall be limited in aggregate principal amount to $        , and shall be
issued substantially in the form set forth in Exhibit A hereto (which is hereby incorporated herein and made a part hereof), subject to changes in the form thereof made by the Issuer and acceptable to the Trustee. The
Series                     Notes shall mature on                 .

 Interest shall be payable [quarterly] in arrears on
the    day                    of                
    ,                    ,                 
   and                    (each, an “Interest Payment Date”) and at Maturity. If any Interest Payment Date would otherwise be
a day that is not a Business Day, such Interest Payment Date shall be postponed to the next day that is a Business Day. If Maturity would otherwise be a day that is not a Business Day, the payment of principal and interest due at Maturity shall be
made on the next day that is a Business Day and no interest shall accrue as a result of such delayed payment. 

  
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 Each payment of interest with respect of an Interest Payment Date or at Maturity shall
include interest accrued to but excluding such Interest Payment Date or Maturity, as the case may be (an “Interest Period”). 

Interest on any
Series                    Note that is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid to the person
in whose name such Series                    Note is registered at the close of business on the     day of the month next
preceding such Interest Payment Date (the “Regular Record Date”). In the case of any Series                    Note issued between a
Regular Record Date and the initial Interest Payment Date, interest for the period beginning on the date of issue and ending on the initial Interest Payment Date shall be paid to the person to whom such
Series                    Note shall have been originally issued. Notwithstanding the foregoing, any interest that is payable but not punctually paid
or duly provided for on any Interest Payment Date shall forthwith cease to be payable to the registered owner of such Series                    Note
on such Regular Record Date, and may be paid to the person in whose name such Series                    Note is registered at the close of business
on the Special Record Date established by the Issuer pursuant to Section 3.8 of the Indenture or as otherwise provided in Section 3.8 of the Indenture. 

Payments of interest on any
Series                    Note (other than interest payable at Maturity) will be made by mailing a check to the Holder at the address of the Holder
appearing on the Securities Register on the applicable record date, unless otherwise agreed to by the Issuer. The principal amount thereof and any premium and the interest payable at Maturity will be paid at Maturity against presentation of a
Series                    Note at the office or agency of the Issuer maintained for that purpose in the Borough of Manhattan, The City of New York,
or as otherwise provided in the Indenture. 
 [The
Series                     Notes are not redeemable prior to Maturity and the provisions of Article XIV of the Indenture are inapplicable.] 

[The Series                    Notes are
not entitled to any sinking fund and the provisions of Article XV of the Indenture are inapplicable thereto.] 
 The
Series                     Notes are subject to the provisions of Article XII of the Indenture, which provide for the satisfaction and discharge
of the Indenture under the circumstances and on the conditions set forth therein. 
 SECTION 3. The
Series                    Notes may be issued in whole or in part as one or more Global Securities and The Depository Trust Company, or a nominee
thereof, shall be the Depository for such Global Security or Global Securities, except in each case as otherwise provided in a Company Order with respect to any
Series                    Notes. The Depository for such Global Security or Global Securities representing
Series                    Notes may surrender one or more Global Securities representing
Series                    Notes in exchange in whole or in part for individual
Series                    Notes on such terms as are acceptable to the Issuer and such Depository and otherwise subject to the terms of
Section 2.4 of the Indenture. 
 SECTION 4. The Issuer hereby appoints, or confirms the appointment of, Deutsche Bank Trust
Company Americas as the initial Trustee, Securities Registrar and Paying Agent, subject to the provisions of the Indenture with respect to resignation, removal and succession, and subject, further, to the right of the Issuer to appoint additional
agents (including Paying Agents). An Authenticating Agent may be appointed for the Series                     Notes under the circumstances set forth
in, and subject to the provisions of, the Indenture. 
 ARTICLE II. 

Miscellaneous Provisions 

SECTION 1. The recitals contained herein shall be taken as the statements of the Issuer, and the Trustee assumes no responsibility for
the correctness of the same. The Trustee shall not be responsible for and makes no representation as to the validity, execution by any party other than the Trustee or sufficiency of this supplemental indenture. The Indenture, as supplemented by this
supplemental indenture, is in all respects hereby adopted, ratified and confirmed. 
 SECTION 2. The titles of the several Articles of
this                      Supplemental Indenture shall not be deemed to be any part hereof. 

  
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 SECTION 3. This
                     Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an
original, but all such counterparts shall together constitute but one and the same instrument. 
 SECTION 4. Capitalized terms
used and not otherwise defined in this                      Supplemental Indenture shall have the meanings ascribed thereto in the Indenture. 

SECTION 5. In case any provision in this
                     Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality, and enforceability of the remaining
provisions shall not in any way be affected or impaired thereby. 
 SECTION 6. This
                     Supplemental Indenture and any Securities issued hereunder shall be governed by and construed in accordance with the laws of the
State of Idaho, except that the obligations, rights and remedies of the Trustee hereunder shall be determined under the laws of the State of New York. 

SECTION 7. The Issuer represents and warrants to the Trustee that this
                     Supplemental Indenture has been duly and validly executed and delivered by the Issuer and constitutes the Issuer’s legal,
valid and binding obligation, enforceable against the Issuer in accordance with its terms. 
 SECTION 8. The Trustee shall be
entitled to all of the same rights, protections, immunities and indemnities set forth in the Indenture as if specifically set forth herein. 

SECTION 9. This
                     Supplemental Indenture shall be binding upon and inure to the benefit of the parties hereto and their respective successors and
assigns. 
 SECTION 10. In order to comply with laws, rules, regulations and executive orders in effect from time to time
applicable to banking institutions, including those relating to the funding of terrorist activities and money laundering, the Trustee is required to obtain, verify and record certain information relating to individuals and entities which maintain a
business relationship with the Trustee. Accordingly, each of the parties hereto agrees to provide to the Trustee upon its reasonable request from time to time identifying information and documentation as may be reasonably available to it in
order to enable the Trustee to comply with such laws, rules, regulations and executive orders. 

  
 - 3 - 

 IN WITNESS WHEREOF, the parties hereto have caused this
                     Supplemental Indenture to be duly executed. 

 

			
	IDAHO POWER COMPANY
		
	By	 	
                     
                    

		 	Name:
		 	Title:
	
	DEUTSCHE BANK TRUST COMPANY AMERICAS
	not in its individual capacity, but solely as Trustee
		
	By	 	
                     
                    

		 	Name:
		 	Title:

  
 - 4 -

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