WESTAR ENERGY, INC. TO THE BANK OF NEW YORK TRUST COMPANY, N.A.

THE BANK OF NEW YORK

TRUST COMPANY, N.A.

As Trustee

Authorized Person

EX-4.16 2 dex416.htm FORTIETH SUPPLEMENTAL INDENTURE Fortieth Supplemental Indenture

Exhibit 4.16

WESTAR ENERGY, INC.

THE BANK OF NEW YORK TRUST COMPANY, N.A.

as Trustee

(as Successor to

HARRIS TRUST AND SAVINGS BANK)

FORTIETH SUPPLEMENTAL INDENTURE

Dated as of May 15, 2007

First Mortgage Bonds, 6.10% Series Due 2047

TABLE OF CONTENTS


Parties		1
Recitals		1
Granting Clause		4
Habendum		6
Exceptions and Reservations		6


		PAGE

ARTICLE I DESCRIPTION OF BONDS OF THE 2047 SERIES

Section 1. General Description of Bonds of the 2047 Series		7
Section 2. Denominations of Bonds of the 2047 Series and Privilege of Exchange		8
Section 3. Form of Bonds of the 2047 Series		8
Section 4. Execution and Form of Temporary Bonds of the 2047 Series		15

ARTICLE II ISSUE OF BONDS OF THE 2047 SERIES

Section 1. Limitation as to Principal Amount of Bonds of the 2047 Series		15
Section 2. Execution and Delivery of Bonds of the 2047 Series		15

ARTICLE III REDEMPTION AND SUBSTITUTION OF BONDS OF THE 2047 SERIES

Section 1. Optional Redemption of Bonds of the 2047 Series		15
Section 2. Substitution of Bonds of the 2047 Series		16

ARTICLE IV ADDITIONAL COVENANTS

Section 1. Title to Mortgaged Property		17
Section 2. To Retire Certain Portions of Bonds upon Release of All or Substantially All of the Electric Properties		18

ARTICLE V SPECIAL INSURANCE PROVISIONS

Section 1. Definitions		18
Section 2. Insurer to be Deemed Bondholder; Rights of Insurer; Notices		19
Section 3. Reporting Requirements		22


Section 4. Payment Procedures		22
Section 5. Notices		23
Section 6. Concerning the Special Insurance Provisions		23

ARTICLE VI AMENDMENTS AND RESERVATIONS OF RIGHTS TO AMEND THE ORIGINAL INDENTURE

Section 1. So Long as Bonds Issued Prior to January 1, 1997 Remain Outstanding		24
Section 2. Facsimile Signatures		27
Section 3. Reservation of Right to Amend Article VII		28
Section 4. Reservation of Right to Delete Certain Requirements and Conditions		30
Section 5. Issuance of Variable Rate Bonds		30
Section 6. Substitution of Bonds		31
Section 7. Addition of a Governing Law Clause		32
Section 8. Event of Default for Failure to Pay Final Judgments in Excess of $100,000		32
Section 9. Net Earnings Test in Connection with Property Acquisitions		32
Section 10. Addition of Nuclear Fuel		32
Section 11. Modernization of the Original Indenture		33

ARTICLE VII MISCELLANEOUS PROVISIONS

Section 1. Acceptance of Trust		34
Section 2. Responsibility and Duty of Trustee		34
Section 3. Parties to Include Successors and Assigns		35
Section 4. Benefits Restricted to Parties and to Holders of Bonds and Coupons		35
Section 5. Execution in Counterparts		35
Section 6. Titles of Articles Not Part of the Fortieth Supplemental Indenture		35

TESTIMONIUM		S-1
SIGNATURES AND SEALS		S-1
ACKNOWLEDGEMENTS		S-2

APPENDIX A

DESCRIPTION OF PROPERTIES

FORTIETH SUPPLEMENTAL INDENTURE, dated as of the 15th day of May, Two Thousand and Seven, made by and between Westar Energy, Inc., formerly The Kansas Power and Light Company, a corporation organized and existing under the laws of the State of Kansas (hereinafter called the “Company”), party of the first part, and The Bank of New York Trust Company, N.A., a national banking association whose mailing address is 2 North La Salle Street, Chicago, Illinois 60602 (hereinafter called the “Trustee”), as Trustee (as successor to Harris Trust and Savings Bank), under the Mortgage and Deed of Trust dated July 1, 1939, hereinafter mentioned, party of the second part;

WHEREAS, the Company has heretofore executed and delivered to the Trustee its Mortgage and Deed of Trust dated July 1, 1939 (hereinafter referred to as the “Original Indenture”), to provide for and to secure the issue of First Mortgage Bonds of the Company, issuable in series, and to declare the terms and conditions upon which the Bonds (as defined in the Original Indenture) are to be issued thereunder; and

WHEREAS, the Company has heretofore executed and delivered to the Trustee Thirty-Nine Supplemental Indentures supplemental to said Original Indenture, of which Thirty-Six provided for the issuance thereunder of series of the Company’s First Mortgage Bonds, and there is set forth below information with respect to such Supplemental Indentures as have provided for the issuance of Bonds, and the principal amount of Bonds which remain outstanding as of May 15, 2007.


Supplemental Indenture	Date	Series of First Mortgage Bonds Provided For	Principal Amount Issued	Principal Amount Outstanding
Supplemental Indenture	July 1, 1939	3-1/2% Series Due 1969	$26,500,000	None
Second Supplemental Indenture	April 1, 1949	2-7/8% Series Due 1979	10,000,000	None
Fourth Supplemental Indenture	October 1, 1949	2-3/4% Series Due 1979	6,500,000	None
Fifth Supplemental Indenture	December 1, 1949	2-3/4% Series Due 1984	32,500,000	None
Seventh Supplemental Indenture	December 1, 1951	3-1/4% Series Due 1981	5,250,000	None
Eighth Supplemental Indenture	May 1, 1952	3-1/4% Series Due 1982	4,750,000	None
Ninth Supplemental Indenture	October 1, 1954	3-1/8% Series Due 1984	8,000,000	None
Tenth Supplemental Indenture	September 1, 1961	4-3/4% Series Due 1991	13,000,000	None
Eleventh Supplemental Indenture	April 1, 1969	7-5/8% Series Due 1999	19,000,000	None
Twelfth Supplemental Indenture	September 1, 1970	8-3/4% Series Due 2000	20,000,000	None


Supplemental Indenture	Date	Series of First Mortgage Bonds Provided For	Principal Amount Issued	Principal Amount Outstanding
Thirteenth Supplemental Indenture	February 1, 1975	8-5/8% Series Due 2005	35,000,000	None
Fourteenth Supplemental Indenture	May 1, 1976	8-5/8% Series Due 2006	45,000,000	None
Fifteenth Supplemental Indenture	April 1, 1977	5.90% Pollution Control Series Due 2007	32,000,000	None
Sixteenth Supplemental Indenture	June 1, 1977	8-1/8% Series Due 2007	30,000,000	None
Seventeenth Supplemental Indenture	February 1, 1978	8-3/4% Series Due 2008	35,000,000	None
Eighteenth Supplemental Indenture	January 1, 1979	6-3/4% Pollution Control Series Due 2009	45,000,000	None
Nineteenth Supplemental Indenture	May 1, 1980	8-1/4% Pollution Control Series Due 1983	45,000,000	None
Twentieth Supplemental Indenture	November 1, 1981	16.95% Series Due 1988	25,000,000	None
Twenty-First Supplemental Indenture	April 1, 1982	15% Series Due 1992	60,000,000	None
Twenty-Second Supplemental Indenture	February 1, 1983	9-5/8% Pollution Control Series Due 2013	58,500,000	None
Twenty-Third Supplemental Indenture	July 1, 1986	8-1/4% Series Due 1996	60,000,000	None
Twenty-Fourth Supplemental Indenture	March 1, 1987	8-5/8% Series Due 2020	50,000,000	None
Twenty-Fifth Supplemental Indenture	October 15, 1988	9.35% Series Due 1998	75,000,000	None
Twenty-Sixth Supplemental Indenture	February 15, 1990	8-7/8% Series Due 2000	75,000,000	None
Twenty-Seventh Supplemental Indenture	March 12, 1992	7.46% Demand Series	370,000,000	None
Twenty-Eighth Supplemental Indenture	July 1, 1992	7-1/4% Series Due 1999	125,000,000	None
		8-1/2% Series Due 2022	125,000,000	None
Twenty-Ninth Supplemental Indenture	August 20, 1992	7-1/4% Series Due 2002	100,000,000	None
Thirtieth Supplemental Indenture	February 1, 1993	6% Pollution Control Revenue Refunding Series Due 2033	58,500,000	None
Thirty-First Supplemental Indenture	April 15, 1993	7.65% Series Due 2023	100,000,000	None
Thirty-Second Supplemental Indenture	April 15, 1994	7-1/2% Series Pollution Control Revenue Refunding Due 2032	75,500,000	75,500,000


Supplemental Indenture	Date	Series of First Mortgage Bonds Provided For	Principal Amount Issued	Principal Amount Outstanding
Thirty-Third Supplemental Indenture	August 11, 1997	6-7/8% Convertible Series Due 2004	370,000,000	None
		7-1/8% Convertible Series Due 2009	150,000,000	None
Thirty-Fourth Supplemental Indenture	June 28, 2000	9-1/2% Series Due 2003	397,800,000	None
Thirty-Fifth Supplemental Indenture	May 10, 2002	7-7/8% Series Due 2007	365,000,000	None
Thirty-Sixth Supplemental Indenture	June 1, 2004	5.00% Series Pollution Control Refunding Revenue Due 2033	58,340,000	58,340,000
Thirty-Seventh Supplemental Indenture	June 17, 2004	6.00% Series Due 2014	250,000,000	250,000,000
Thirty-Eighth Supplemental Indenture	January 18, 2005	5.15% Series Due 2017 5.95% Series Due 2035	125,000,000 125,000,000	125,000,000 125,000,000
Thirty-Ninth Supplemental Indenture	June 30, 2005	5.10% Series Due 2020 5.875% Series Due 2036	250,000,000 150,000,000	250,000,000 150,000,000

; and

WHEREAS, the Company is entitled at this time to have authenticated and delivered additional bonds in substitution for refundable Bonds, upon compliance with the provisions of Article III of the Original Indenture, as amended; and

WHEREAS, the Company desires by this Fortieth Supplemental Indenture (hereinafter referred to as this “Supplemental Indenture”) to supplement the Original Indenture and to provide for the creation of a new series of bonds under the Original Indenture to be designated “First Mortgage Bonds, 6.10% Series due 2047” (hereinafter called “Bonds of the 2047 Series”); and the Original Indenture provides that certain terms and provisions, as determined by the Board of Directors of the Company, of the Bonds of any particular series may be expressed in and provided by the execution of an appropriate supplemental indenture; and

WHEREAS, the Company in the exercise of the powers and authority conferred upon and reserved to it under the provisions of the Original Indenture and indentures supplemental thereto, and pursuant to appropriate resolutions of its Board of Directors, has duly resolved and determined to make, execute and deliver to the Trustee a supplemental indenture in the form hereof for the purposes herein provided; and

WHEREAS, all conditions and requirements necessary to make this Supplemental Indenture a valid, binding and legal instrument have been done, performed and fulfilled, and the execution and delivery hereof have been in all respects duly authorized;

NOW, THEREFORE, THIS INDENTURE WITNESSETH: That, in consideration of the premises and of the mutual covenants herein contained and of the sum of One Dollar duly paid by the Trustee to the Company at or before the time of the execution of these presents, and of other valuable considerations, the receipt whereof is hereby acknowledged, and in order further to secure the payment of the principal of and interest and premium, if any, on all Bonds at any time issued and outstanding under the Original Indenture as amended by all indentures supplemental thereto (hereinafter sometimes collectively called the “Indenture”) according to their tenor, purport and effect, and to declare certain terms and conditions upon and subject to which Bonds are to be issued and secured, the Company has executed and delivered this Supplemental Indenture, and by these presents grants, bargains, sells, warrants, aliens, releases, conveys, assigns, transfers, mortgages, pledges, sets over and ratifies and confirms unto The Bank of New York Trust Company, N.A., as Trustee, and to its successors in trust under the Indenture forever, all and singular the following described properties (in addition to all other properties heretofore specifically subjected to the lien of the Indenture and not heretofore released from the lien thereof), that is to say:

FIRST.

All and singular the rents, real estate, chattels real, easements, servitudes, and leaseholds of the Company, or which, subject to the provisions of Article XII of the Original Indenture, the Company may hereafter acquire, including, among other things, the existing property described in Appendix A hereto under the caption “First,” which description is hereby incorporated herein by reference and made a part hereof as if fully set forth herein, together with all improvements of any type located thereon.

Also all power houses, plants, buildings and other structures, dams, dam sites, substations, heating plants, gas works, holders and tanks, compressor stations, gasoline extraction plants, together with all and singular the electric heating, gas and mechanical appliances appurtenant thereto of every nature whatsoever, now owned by the Company or which it may hereafter acquire, including all and singular the machinery, engines, boilers, furnaces, generators, dynamos, turbines and motors, and all and every character of mechanical appliance for generating or producing electricity, steam, water, gas and other agencies for light, heat, cold or power or any other purpose whatsoever.

SECOND.

Also all transmission and distribution systems used for the transmission and distribution of electricity, steam, water, gas and other agencies for light, heat, cold or power, or any other purpose whatever, whether underground or overhead or on the surface or otherwise of the Company, or which, subject to the provisions of Article XII of the Original Indenture, the Company may hereafter acquire, including all poles, posts, wires, cables, conduits, mains, pipes, tubes, drains, furnaces, switchboards, transformers, insulators, meters, lamps, fuses, junction boxes, water pumping stations, regulator stations, town border metering stations and other electric, steam, water and gas fixtures and apparatus.

THIRD.

Also all franchises and all permits, ordinances, easements, privileges and immunities and licenses, all rights to construct, maintain and operate overhead, surface and underground systems for the distribution and transmission of electricity, gas, water or steam for the supply to itself or others of light, heat, cold or power or any other purpose whatsoever, all rights-of-way, all waters, water rights and flowage rights and all grants and consents, now owned by the Company or, subject to the provisions of Article XII of the Original Indenture, which it may hereafter acquire.

Also all inventions, patent rights and licenses of every kind now owned by the Company or, subject to the provisions of Article XII of the Original Indenture, which it may hereafter acquire.

FOURTH.

Also, subject to the provisions of Article XII of the Original Indenture, all other property, real, personal and mixed (except as therein or herein expressly excepted) of every nature and kind and wheresoever situated now or hereafter possessed by or belonging to the Company, or to which it is now, or may at any time hereafter be, in any manner entitled at law or in equity.

FIFTH.

Also any and all property of any kind or description which may from time to time after the date of the Original Indenture by delivery or by writing of any kind be conveyed, mortgaged, pledged, assigned or transferred to the Trustee by the Company or by any person, copartnership or corporation, with the consent of the Company or otherwise, and accepted by the Trustee, to be held as part of the mortgaged property; and the Trustee is hereby authorized to accept and receive any such property and any such conveyance, mortgage, pledge, assignment and transfer, as and for additional security hereunder, and to hold and apply any and all such property subject to and in accordance with the terms and provisions upon which such conveyance, mortgage, pledge, assignment or transfer shall be made.

SIXTH.

Together with all and singular, the tenements, hereditaments and appurtenances belonging or in any wise appertaining to the aforesaid property or any part thereof, with the reversion and reversions, remainder and remainders, tolls, rents, revenues, issues, income, products and profits thereof, and all the estate, right, title, interest and claim whatsoever, at law and in equity, which the Company now has or may hereafter acquire in and to the aforesaid property and franchises and every part and parcel thereof.

EXPRESSLY EXCEPTING AND EXCLUDING, HOWEVER, all properties of the character excepted from the lien of the Original Indenture.

TO HAVE AND TO HOLD all said properties, real, personal and mixed, mortgaged, pledged and conveyed by the Company as aforesaid, or intended so to be, unto the Trustee and its successors and assigns forever;

SUBJECT, HOWEVER, to the exceptions and reservations hereinabove referred to, to existing leases other than leases which by their terms are subordinate to the lien of the Indenture, to existing liens upon rights-of-way for transmission or distribution line purposes, as defined in Article I of the Original Indenture; and any extensions thereof, and subject to existing easements for streets, alleys, highways, rights-of-way and railroad purposes over, upon and across certain of the property herein before described and subject also to all the terms, conditions, agreements, covenants, exceptions and reservations expressed or provided in the deeds or other instruments respectively under and by virtue of which the Company acquired the properties hereinabove described and to undetermined liens and charges, if any, incidental to construction or other existing permitted liens as defined in Article I of the Original Indenture;

IN TRUST, NEVERTHELESS, upon the terms and trusts in the Original Indenture, and the indentures supplemental thereto, including this Supplemental Indenture, set forth, for the equal and proportionate benefit and security of all present and future holders of the Bonds and coupons issued and to be issued thereunder, or any of them, without preference of any of said Bonds and coupons of any particular series over the Bonds and coupons of any other series by reason of priority in the time of issue, sale or negotiation thereof, or by reason of the purpose of issue or otherwise howsoever, except as otherwise provided in Section 2 of Article IV of the Original Indenture.

AND IT IS HEREBY COVENANTED, DECLARED AND AGREED, by and between the parties hereto for the benefit of those who shall hold the Bonds and coupons, or any of them, to be issued under the Indenture as follows:

ARTICLE I

DESCRIPTION OF BONDS OF THE 2047 SERIES

Section 1. General Description of Bonds of the 2047 Series. The Bonds of the 2047 Series to be executed, authenticated and delivered under and secured by the Original Indenture shall be designated as “First Mortgage Bonds, 6.10% Series due 2047” of the Company. The Bonds of the 2047 Series shall be executed, authenticated and delivered in accordance with the provisions of, and shall in all respects be subject to, all of the terms, conditions and covenants of the Indenture and subject to all the terms, conditions and covenants of this Supplemental Indenture.

Bonds of the 2047 Series shall mature May 15, 2047 and shall bear interest at the rate of six and ten one-hundredths percent (6.10%) per annum payable quarterly on the fifteenth day of May, August, November and February in each year, commencing August 15, 2007. Every Bond of the 2047 Series shall be dated the date of authentication except that, notwithstanding the provisions of Section 6 of Article II of the Original Indenture, if any Bond of the 2047 Series shall be authenticated at any time subsequent to the record date (as hereinafter in this Section defined) for any interest payment date but prior to the day following such interest payment date, it shall be dated as of the day following such interest payment date, provided, however, if at the time of authentication of any Bond of the 2047 Series interest shall be in default on any Bonds of the 2047 Series, such Bond shall be dated as of the day following the interest payment date to which interest has previously been paid in full or made available for payment in full on outstanding Bonds of the 2047 Series, as the case may be, or, if no interest has been paid or made available for payment, as of the date of initial authentication and delivery of such Bond. Every Bond of the 2047 Series shall bear interest from the May 15, August 15, November 15 or February 15 next preceding the date thereof, unless such Bond shall be dated prior to August 15, 2007, in which case it shall bear interest from May 16, 2007.

The person in whose name any Bond of the 2047 Series is registered at the close of business on any record date with regard to any interest payment date shall be entitled to receive the interest payable thereon on such interest payment date notwithstanding the cancellation of such Bond upon the transfer or exchange thereof subsequent to such record date and prior to the day following such interest payment date, unless the Company shall default in the payment of the interest due on such interest payment date, in which case such defaulted interest shall be paid to the person in whose name such Bond is registered on the date of payment of

such defaulted interest. The term “record date” as used in this Section with regard to any May 15, August 15, November 15 and February 15 interest payment date shall mean the close of business on the next preceding May 1, August 1, November 1 and February 1, respectively, or if such day is not a business day, the business day next preceding such day. The Bonds of the 2047 Series shall be payable as to principal, premium, if any, and interest, in any coin or currency of the United States of America which at the time of payment is legal tender for public and private debts, at the agency of the Company in the City of Chicago, Illinois, or at the option of the holder thereof at the agency of the Company in the Borough of Manhattan, The City of New York, provided that at the option of the Company interest may be paid by check mailed to the holder at such holder’s registered address.

Section 2. Denominations of Bonds of the 2047 Series and Privilege of Exchange. The Bonds of the 2047 Series shall be registered bonds without coupons of the denominations of $25 and of any multiples of $25, numbered consecutively from R-1. Bonds of the 2047 Series may each be interchanged for other Bonds within the same Series in authorized denominations and in the same aggregate principal amounts, without charge, except for any tax or governmental charge imposed in connection with such interchange.

Section 3. Form of Bonds of the 2047 Series. The Bonds of the 2047 Series, and the Trustee’s Certificate with respect thereto, shall be substantially in the following forms, respectively:

[FORM OF LEGEND FOR GLOBAL SECURITY]

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT AND ANY SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT HEREON IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

CUSIP 95709T 704

WESTAR ENERGY, INC.

(Incorporated under the laws of the State of Kansas)

FIRST MORTGAGE BOND, 6.10% SERIES DUE 2047

DUE MAY 15, 2047


No. R-1		$

WESTAR ENERGY, INC., a corporation organized and existing under the laws of the State of Kansas (hereinafter called the “Company”, which term shall include any successor corporation as defined in the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & CO. or registered assigns, on the 15th day of May 2047, the sum of in any coin or currency of the United States of America which at the time of payment is legal tender for public and private

debts, and to pay interest thereon in like coin or currency from the fifteenth day of May, August, November and February next preceding the date of this Bond (the “Bonds”) unless this Bond shall be dated prior to August 15, 2007, in which case from May 16, 2007 at the rate of six and ten one-hundredths percent (6.10%) per annum, payable quarterly, on May 15, August 15, November 15 and February 15 of each year, commencing August 15, 2007, until maturity, or, if this Bond shall be duly called for redemption or submitted for repurchase, until the redemption date or repurchase date, as the case may be, or, if the Company shall default in the payment of the principal or premium hereof, until the Company’s obligation with respect to the payment of such principal or premium shall be discharged as provided in the Indenture hereinafter mentioned. The interest payable on any May 15, August 15, November 15 or February 15 interest payment date as aforesaid will be paid to the person in whose name this Bond is registered at the close of business on the next preceding May 1, August 1, November 1 and February 1, respectively, or if such day is not a business day, the business day next preceding such day (the “record date”), unless the Company shall default in the payment of the interest due on such interest payment date, in which case such defaulted interest shall be paid to the person in whose name this Bond is registered on the date of payment of such defaulted interest. Principal of, premium, if any, and interest on, this Bond are payable at the agency of the Company in the City of Chicago, Illinois in immediately available funds, or at the option of the holder thereof at the agency of the Company in the Borough of Manhattan, The City of New York, provided that at the option of the Company interest may be paid by check mailed to the holder at such holder’s registered address.

This Bond is one of a duly authorized issue of Bonds of the Company (herein called the “Bonds”), in unlimited aggregate principal amount, of the series hereinafter specified, all issued and to be issued under and equally secured by a Mortgage and Deed of Trust, dated July 1, 1939 (the “Original Mortgage”), executed by the Company to The Bank of New York Trust Company, N.A. (herein called the “Trustee”), as Trustee (as successor to Harris Trust and Savings Bank), as amended by indentures supplemental thereto including the fortieth indenture supplemental thereto dated as of May 15, 2007 (herein called the “Supplemental Indenture”), between the Company and the Trustee (said Original Mortgage, as so amended, being herein called the “Indenture”), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the properties mortgaged and pledged, the nature and extent of the security, the rights of the bearers or registered owners of the Bonds and of the Trustee in respect thereto, and the terms and conditions upon which the Bonds are, and are to be, secured. The Bonds may be issued in series, for various principal sums, may mature at different times, may bear interest at different rates and may otherwise vary as in the Indenture provided. This Bond is one of a series designated as the “First Mortgage Bonds, 6.10% Series due 2047” (herein called “Bonds of the 2047 Series”) of the Company, issued under and secured by the Indenture executed by the Company to the Trustee.

To the extent permitted by, and as provided in the Indenture, modifications or alterations of the Indenture or of any indenture supplemental thereto, and of the rights and obligations of the Company and of the holders of the Bonds and coupons, may be made with the consent of the Company by an affirmative vote of not less than 60% in principal amount of the Bonds entitled to vote then outstanding, at a meeting of

Bondholders called and held as provided in the Indenture, and by an affirmative vote of not less than 60% in principal amount of the Bonds of any series entitled to vote then outstanding and affected by such modification or alteration, in case one or more but less than all of the series of Bonds then outstanding under the Indenture are so affected. No modification or alteration shall be made which will affect the terms of payment of the principal of or premium, if any, or interest on, this Bond, which are unconditional. The Company has reserved the right to make certain amendments to the Indenture, without any consent or other action by holders of the Bonds of this series (i) to the extent necessary from time to time to qualify the Indenture under the Trust Indenture Act of 1939, (ii) to delete the requirement that the Company meet a net earnings test as a condition to authenticating additional Bonds or merging into another company, (iii) to make certain other amendments which make the provisions for the release of mortgaged property less restrictive and (iv) to make certain other amendments, all as more fully provided in the Indenture and in the Supplemental Indenture. In addition, once all Bonds issued prior to January 1, 1997 are no longer outstanding, the Company will be permitted to issue additional Bonds in an amount equal to 70% of the value of net bondable property additions not subject to an unfunded prior lien, as provided in the Original Mortgage.

On and after May 15, 2012, this Bond is subject to redemption, in whole or in part, at any time at the option of the Company at a price equal to 100% of the principal amount redeemed plus accrued and unpaid interest to the redemption date as provided in the Supplemental Indenture. Such redemption in every case shall be effected upon notice given by: (1) first class mail, postage prepaid, at least thirty days and not more than sixty days prior to the redemption date, to the registered owners of such Bonds at their addresses as the same shall appear on the transfer register of the Company; and (2) stating, among other things, the redemption price and date, in each case, subject to the conditions of and as more fully set forth in the Indenture.

In case an event of default, as defined in the Indenture, shall occur, the principal of all of the Bonds at any such time outstanding under the Indenture may be declared or may become due and payable, upon the conditions and in the manner and with the effect provided in the Indenture. The Indenture provides that such declaration may in certain events be waived by the holders of a majority in principal amount of the Bonds outstanding.

This Bond is transferable by the registered owner hereof, in person or by duly authorized attorney, on the books of the Company to be kept for that purpose at the agency of the Company in the City of Chicago, Illinois, and at the agency of the Company in the Borough of Manhattan, The City of New York, upon surrender and cancellation of this Bond and on presentation of a duly executed written instrument of transfer, and thereupon a new registered Bond or Bonds of the same series, of the same aggregate principal amount and in authorized denominations will be issued to the

transferee or transferees in exchange herefor; and this Bond, with or without others of like form and series, may in like manner be exchanged for one or more new registered Bonds of the same series of other authorized denominations but of the same aggregate principal amount; all upon payment of the charges and subject to the terms and conditions set forth in the Indenture.

The Company or a successor entity may deliver to the Trustee in substitution for any Bonds of the 2047 Series, mortgage bonds or other similar instruments as set forth in the Indenture.

Subject to the preceding sentence, no recourse shall be had for the payment of the principal of or premium, if any, or interest on this Bond, or for any claim based hereon or on the Indenture or any indenture supplemental thereto, against any incorporator, or against any stockholder, director or officer, past, present or future, of the Company, or of any predecessor or successor corporation, as such, either directly or through the Company or any such predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability, whether at common law, in equity, by any constitution, statute or otherwise, of incorporators, stockholders, directors or officers being released by every owner hereof by the acceptance of this Bond and as part of the consideration for the issue hereof, and being likewise released by the terms of the Indenture.

No director, officer, employee or stockholder of the Company will have any liability for any obligations of the Company under the Bonds or Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each holder by accepting a Bond waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Bonds. The waiver may not be effective to waive liabilities under the federal securities laws. It is the view of the Securities and Exchange Commission that this type of waiver is against public policy.

This Bond shall not be entitled to any benefit under the Indenture or any indenture supplemental thereto, or become valid or obligatory for any purpose, until The Bank of New York Trust Company, N.A., the Trustee (as successor to Harris Trust and Savings Bank) under the Indenture, or a successor trustee thereto under the Indenture, shall have signed the form of certificate endorsed hereon.

IN WITNESS WHEREOF, WESTAR ENERGY, INC. has caused this Bond to be signed in its name by its Chairman of the Board, President and Chief Executive Officer or a Vice President, manually or by facsimile, and its corporate seal (or a facsimile thereof) to be hereto affixed and attested by its Secretary or an Assistant Secretary, manually or by facsimile.

Dated: May 16, 2007


	WESTAR ENERGY, INC.

	By
		Mark A. Ruelle
		Executive Vice President and
		Chief Financial Officer
Attest:


Larry D. Irick
Vice President, General Counsel and Corporate Secretary

TRUSTEE’S CERTIFICATE

This Bond is one of the Bonds, of the series designated herein, described in the within-mentioned Mortgage and Deed of Trust of July 1, 1939 and Supplemental Indenture dated as of May 15, 2007.

STATEMENT OF INSURANCE

Financial Guaranty Insurance Company (“Financial Guaranty”), a New York stock insurance company, has issued a surety bond, policy number 07010206 (the “Policy”) containing the following provisions with respect to the Bonds, such Policy being on file at the principal office of The Bank of New York Trust Company, N.A. or its successor, as Paying Agent for the Bonds (the “Paying Agent”).

Financial Guaranty hereby unconditionally and irrevocably agrees to pay to U.S. Bank Trust National Association or its successor, as its agent (the “Fiscal Agent”) for the benefit of the Bondholders, that portion of the principal of and interest on the Bonds which shall become due for payment and which Westar Energy, Inc., as the issuer of the Bonds (the “Issuer”), shall have failed to provide. “Due for payment” means, with respect to principal of a Bond, the stated maturity date thereof and does not refer to any earlier date on which payment of principal of the Bonds is due by reason of call for redemption, acceleration or other advancement of maturity, and with respect to interest on a Bond, the stated date for payment of such interest.

Upon receipt of telephonic or telegraphic notice, subsequently confirmed in writing, or written notice by registered or certified mail, from a Bondholder or the Paying Agent to Financial Guaranty that the Issuer has failed to provide sufficient funds to the Paying Agent for payment in full of all principal and interest due for payment on such Bond, Financial Guaranty on the date such principal or interest becomes due for payment or on the business day next following the day on which Financial Guaranty shall have received such notice of nonpayment, whichever is later, will make a deposit of funds, in an account with the Fiscal Agent, sufficient to make the portion of such payment not paid by the Issuer. Upon presentation to the Fiscal Agent of evidence reasonably satisfactory to it of the Bondholder’s right to receive such payment and any appropriate instruments of assignment required to vest all of such Bondholder’s right to such payment in Financial Guaranty, the Fiscal Agent will disburse such amount to the Bondholder.

As used herein the term “Bondholder” means the person other than the Issuer who at the time of nonpayment of a Bond is entitled under the terms of such Bond to payment thereof.

This policy is non-cancellable for any reason.

FINANCIAL GUARANTY INSURANCE COMPANY

Section 4. Execution and Form of Temporary Bonds of the 2047 Series. Until Bonds of the 2047 Series in definitive form are ready for delivery, the Company may execute, and upon its request in writing the Trustee shall authenticate and deliver, in lieu thereof, Bonds of the 2047 Series in temporary form, as provided in Section 9 of Article II of the Original Indenture.

ARTICLE II

ISSUE OF BONDS OF THE 2047 SERIES

Section 1. Limitation as to Principal Amount of Bonds of the 2047 Series. The total principal amount of Bonds of the 2047 Series which may be authenticated and delivered hereunder is not limited except as the Original Indenture and this Supplemental Indenture limit the principal amount of Bonds which may be issued thereunder.

Section 2. Execution and Delivery of Bonds of the 2047 Series. Bonds of the 2047 Series for the aggregate principal amount of $150,000,000 may forthwith be executed by the Company and delivered to the Trustee and shall be authenticated by the Trustee and delivered (either before or after the filing or recording hereof) to or upon the order of the Company, upon receipt by the Trustee of the resolutions, certificates, instruments and opinions required by Article III of the Original Indenture.

ARTICLE III

REDEMPTION AND SUBSTITUTION OF BONDS OF THE 2047 SERIES

Section 1. Optional Redemption of Bonds of the 2047 Series.

(1) Optional Redemption of Bonds of the 2047 Series. At any time, and from time to time, on or after May 15, 2012, the Company may redeem all or any portion of the Bonds of the 2047 Series, after giving the required notice under subsection (2) of this Article III, Section 1, at a redemption price equal to 100% of the principal amount of the Bonds of the 2047 Series to be redeemed, plus any accrued and unpaid interest thereon to the redemption date.

(2) Notice of Redemption. Subject to the provisions of Article V of the Original Indenture, in the case of redeeming all or any portion of the Bonds of the 2047 Series, the Company shall cause notice of redemption to be given by (1) first class mail, postage prepaid, at least thirty days and not more than sixty days prior to the date of redemption, to the registered owners of such Bonds of the 2047 Series at their addresses as the same shall appear on the transfer register of the Company; and (2) stating, among other things, the redemption price and date.

Notwithstanding the foregoing, a notice of redemption may provide that the optional redemption described in such notice is conditioned upon the occurrence of certain events before the date of redemption. Such notice of conditional redemption will be of no effect unless all such conditions to the redemption shall have occurred before the redemption date or shall have been waived by the Company. If any of these events fail to occur and are not waived by the Company, the Company will be under no obligation to redeem the Bonds of the 2047 Series or pay the holders thereof any redemption proceeds and the Company’s failure to so redeem the Bonds of the 2047 Series will not be considered a default or event of default under the Indenture. In the event that any of these conditions fail to occur or are not waived by the Company, the Company will promptly notify the Trustee in writing that the conditions precedent to such redemption have failed to occur and the Bonds of the 2047 Series will not be redeemed.

Section 2. Substitution of Bonds of the 2047 Series. The Company may deliver to the Trustee in substitution for any Bonds of the 2047 Series, mortgage bonds or other similar secured instruments of the Company or any successor entity, whether by merger, combination or acquisition of all or substantially all of the assets of the Company, or otherwise, issued under a mortgage and deed of trust or similar instrument of the Company or any successor entity in like principal amount of like term and bearing the same rate of interest and having the same interest payment dates and same redemption provisions as the Bonds of the 2047 Series and which are otherwise substantially similar to the Bonds of the 2047 Series (such substituted bonds hereinafter being referred to in this Article III, Section 2 as the “2047 Series Substituted Mortgage Bonds”). The 2047 Series Substituted Mortgage Bonds may only be delivered to the Trustee upon receipt by the Trustee of (i) a letter from Moody’s (as hereinafter defined), dated within ten days prior to the date of delivery of the 2047 Series Substituted Mortgage Bonds, stating that its rating of the 2047 Series Substituted Mortgage Bonds is at least equal to its then current rating on the Bonds of the 2047 Series, (ii) a letter from S&P (as hereinafter defined), dated within ten days prior to the date of delivery of the 2047 Series Substituted Mortgage Bonds, stating that its rating to the 2047 Series Substituted Mortgage Bonds is at least equal to its then current rating on the Bonds of the 2047 Series, (iii) a letter from Fitch (as hereinafter defined), dated within ten days prior to the date of delivery of the 2047 Series Substituted Mortgage Bonds, stating that its rating to the 2047 Series Substituted Mortgage Bonds is at least equal to its then current rating on the Bonds of the 2047 Series, (iv) an opinion of counsel, which may be counsel to the Company or any successor entity, that such substitution will not result in the recognition of capital gain or loss for U.S. federal income tax purposes to the holders of the Bonds of the 2047 Series, (v) an opinion of counsel which may be counsel to the Company or any successor entity, to the effect that the 2047 Series Substituted Mortgage Bonds shall have been duly and validly authorized,

executed, authenticated, and delivered and shall constitute the valid, legally binding and enforceable obligations of the Company or any successor entity enforceable in accordance with their terms, except as limited by bankruptcy, insolvency or other laws affecting the enforcement of mortgagees’ and other creditors’ rights and shall be entitled to the benefit of the mortgage and deed of trust or other similar instrument pursuant to which they shall have been issued and (vi) such other certificates and documents with respect to the issuance and delivery of the 2047 Series Substituted Mortgage Bonds as may be required by law or as the Trustee may reasonably request.

“Moody’s” means Moody’s Investors Service, Inc., a corporation organized and existing under the laws of the State of Delaware, its successors and their assigns, except that if such corporation shall be dissolved or liquidated or shall no longer perform the functions of a securities rating agency, then the term “Moody’s” shall be deemed to refer to any other nationally recognized securities rating agency selected by the Company.

“S&P” means Standard & Poor’s Ratings Services, a division of The McGraw Hill Companies, Inc., duly organized and existing under and by virtue of the laws of the State of New York, and its successors and assigns, except that if such rating agency shall be dissolved or liquidated or shall no longer perform the functions of a securities rating agency, then the term “S&P” shall be deemed to refer to any other nationally recognized securities rating agency selected by the Company.

“Fitch” means Fitch Ratings, Ltd., a majority-owned subsidiary of Fimalac, S.A., its successors and their assigns, except that if such entity shall be dissolved or liquidated or shall no longer perform the functions of a securities rating agency, then the term “Fitch” shall be deemed to refer to any other nationally recognized securities rating agency selected by the Company.

ARTICLE IV

ADDITIONAL COVENANTS

The Company hereby covenants, warrants and agrees:

Section 1. Title to Mortgaged Property. That the Company is lawfully seized and possessed of all of the mortgaged property described in the granting clauses of this Supplemental Indenture; that it has good, right and lawful authority to mortgage the same as provided in this Supplemental Indenture; and that such mortgaged property is, at the actual date of the initial issue of the Bonds of the 2047 Series, free and clear of any deed of trust, mortgage, lien, charge or encumbrance thereon or affecting the title thereto prior to the Indenture, except as set forth in the granting clauses of the Original Indenture, the Thirty-Second

Supplemental Indenture, the Thirty-Sixth Supplemental Indenture, the Thirty-Seventh Supplemental Indenture, the Thirty-Eight Supplemental Indenture, the Thirty-Ninth Supplemental Indenture and this Supplemental Indenture.

Section 2. To Retire Certain Portions of Bonds upon Release of All or Substantially All of the Electric Properties. So long as any Bonds of any series originally issued prior to January 1, 1997 are outstanding, in the event all or substantially all of the electric properties shall have been released as an entirety from the lien of the Original Indenture, the Company will, at any time or from time to time within six months after the date of such release, retire Bonds outstanding under the Original Indenture in an aggregate principal amount equal to the fair value of the electric properties so released pursuant to Section 3 of Article VII of the Original Indenture, as stated in the engineer’s certificate required by Section 3(b) of said Article VII, and the proceeds of the electric properties so released pursuant to Section 5 of said Article VII. Such retirement of Bonds shall be effected in either one or both of the following methods:

(a) By the withdrawal pursuant to Section 2 of Article VIII of the Original Indenture of any moneys deposited with the Trustee pursuant to Sections 3(d), 4(d) and 5 of Article VII of the Original Indenture upon such release; or

(b) By causing the Trustee to purchase or redeem bonds, pursuant to Section 8 of Article VIII of the Original Indenture, out of any moneys deposited with the Trustee pursuant to Sections 3(d), 4(d) and 5 of Article VII of the Original Indenture upon such release.

The Bonds to be so retired pursuant to such Section 3 of Article VII of the Original Indenture shall include a principal amount of Bonds of each Series then outstanding in the same ratio to the aggregate principal amount of all Bonds so retired as the aggregate principal amount of all Bonds of each Series outstanding immediately prior to such release bears to the total principal amount of all Bonds then outstanding.

ARTICLE V

SPECIAL INSURANCE PROVISIONS

Section 1. Definitions. The following defined terms used in this Article IV shall, unless the context otherwise requires, have the meanings specified below.

“Bondholder” means the person other than the Issuer who at the time of nonpayment of a Bond is entitled under the terms of such Bond of the 2047 Series to payment thereof.

“Due For Payment” means, when referring to the principal of a Bond of the 2047 Series, the Stated Maturity and does not refer to any earlier date on which payment is due by reason of a call for redemption, acceleration or other advancement of maturity and means, when referring to interest on a Bond of the 2047 Series, the stated date for payment in interest.

“Fiscal Agent” means U.S. Bank Trust National Association, New York, New York or its successor as the Insurer’s fiscal agent.

“Insurance Agreement” shall mean that certain insurance agreement dated as of May 16, 2007 by and between the Company and the Insurer.

“Insurer” means Financial Guaranty Insurance Company, a New York stock insurance company, or any successor thereto.

“Policy” means the surety bond issued by the Insurer that guarantees payment of principal of and interest on the Bonds of the 2047 Series when such principal or interest is Due For Payment.

“Stated Maturity” means May 15, 2047.

Section 2. Insurer to be Deemed Bondholder; Rights of Insurer; Notices. Notwithstanding anything herein to the contrary, so long as the Policy shall be in full force and effect and the Insurer is not in default thereunder, the Company and the Trustee agree to comply with the following provisions:

(a) The Insurer shall, to the extent it makes payment of principal of or interest on the Bonds of the 2047 Series, become subrogated to the rights of the recipients of such payments in accordance with the terms of the Policy and, to evidence such subrogation, (i) in the case of subrogation as to claims for past due interest, the Trustee shall note the Insurer’s rights as subrogee on the registration books for the Bonds of the 2047 Series maintained by the Trustee upon receipt from the Insurer of proof of the payment of interest thereon to the Bondholders and (ii) in the case of subrogation as to claims for past due principal, the Trustee shall note the Insurer’s rights as subrogee on the registration books for the Bonds of the 2047 Series maintained by the Trustee upon receipt from the Insurer of proof of the payment of principal thereof to the Bondholders. Notwithstanding anything in this Indenture or the Bonds of the 2047 Series to the contrary, the Trustee shall make payment of such past due interest and past due principal directly to the Insurer to the extent that the Insurer is a subrogee with respect thereto.

(b) In determining whether a payment default with respect to any Bonds of the 2047 Series has occurred or whether a payment on the Bonds of the 2047 Series has been made under this Indenture, no effect shall be given to payments made under the Policy.

(c) An event of default on the Bonds of the 2047 Series shall include, in addition to those events of default in Section 1 of Article IX of the Original Indenture, the occurrence of any Event of Default (as defined in the Insurance Agreement) in the Insurance Agreement.

(d) Any waiver of an event of default with respect to any Bonds of the 2047 Series by a majority of holders of the Bonds of the 2047 Series pursuant to Section 2 of Article IX of the Original Indenture shall be subject to the prior written consent of the Insurer (if it has not failed to comply with its payment obligations under the Policy).

(e) Any acceleration of the Bonds of the 2047 Series or any annulment thereof shall be subject to the prior written consent of the Insurer (if it has not failed to comply with its payment obligations under the Policy).

(f) The Trustee and the Company shall provide prompt notice to the Insurer of any payment default and notice of any other default known to the Trustee or the Company within 30 days of the Company’s or Trustee’s knowledge thereof.

(g) For all purposes of the provisions of this Indenture governing events of default and remedies, except the giving of notice of default to holders of the Bonds of the 2047 Series, the Insurer shall be deemed to be the sole holder of the Bonds of the 2047 Series it has insured for so long as it has not failed to comply with its payment obligations under the Policy.

(h) The Insurer shall be deemed a party in interest under the Indenture and shall be entitled to (i) notify the Trustee of the occurrence of an event of default and (ii) request the Trustee to intervene in judicial proceedings that affect the Bonds of the 2047 Series or the security therefor. The Trustee shall be required to accept notice of default from the Insurer.

(i) The Insurer shall be deemed the owner of the Bonds of the 2047 Series and shall vote the Bonds of the 2047 Series in connection with any proposed amendment, change, modification, direction, waiver or consent (hereinafter referred to as a “course of action”) to the Indenture; provided, however, that so long as the Policy is in full force and effect and the Insurer is not in default thereunder, (i) the Trustee shall not consent to any course of action without the prior written consent of the Insurer, and (ii) the Trustee shall promptly notify the Insurer of any proposed amendment to the Indenture or any other proposed course of action, and (iii) the Insurer shall be entitled to exercise all rights (including voting rights) in respect of the Bonds of the 2047 Series, and the

Trustee shall be required to accept notice from, and the direction of, the Insurer in connection with any such exercise of rights. Any nationally recognized rating agency rating the Bonds of the 2047 Series must receive notice of each amendment and a copy thereof at least 15 days in advance of its execution or adoption. The Insurer shall be provided with a full transcript of all proceedings relating to the execution of any such amendment or supplement.

(j) To the extent that this Indenture confers upon or gives or grants to the Insurer any right, remedy or claim under or by reason of this Indenture, the Insurer is hereby explicitly recognized as being a third-party beneficiary hereunder and may enforce any such right, remedy or claim conferred, given or granted hereunder.

(k) The Company shall not assign the Indenture, the Insurance Agreement or any of its duties or obligations thereunder without the prior written consent of the Insurer.

(l) The Company shall pay or reimburse the Insurer for any and all charges, fees, costs, and expenses that the Insurer may reasonably pay or incur in connection with the following: (i) the administration, enforcement, defense, or preservation of any rights or security under the Indenture and the Bonds; (ii) the pursuit of any remedies under the Indenture and the Bonds, or otherwise afforded by law or equity, (iii) any amendment, waiver, or other action with respect to or related to the Indenture whether or not executed or completed; (iv) the violation by the Company of any law, rule, or regulation or any judgment, order or decree applicable to the Company; (v) any advances or payments made by the Insurer to cure defaults of the Company under the Indenture and the Bonds; or (vi) any litigation or other dispute in connection with the Indenture, the Bonds or the transactions contemplated thereby, other than amounts resulting from the failure of the Insurer to honor its payment obligations under the Policy. The Insurer reserves the right to charge a reasonable fee as a condition to executing any amendment, waiver, or consent proposed in respect of the Indenture or any other transaction document. The obligations of the Company to the Insurer shall survive discharge and termination of the Indenture and the Bonds of the 2047 Series.

(m) Notice of any redemption of Bonds of the 2047 Series by the Company shall either (i) explicitly state that the proposed redemption is conditioned on there being on deposit in the applicable fund or account on the redemption date sufficient money to pay the full redemption price of the Bonds of the 2047 Series to be redeemed, or (ii) be sent only if sufficient money to pay the full redemption price of the Bonds of the 2047 Series to be redeemed is on deposit in the applicable fund or account.

(n) Nothing in this Indenture expressed or implied is intended or shall be construed to confer upon, or to give or grant to, any person or entity, other than the Company, the Trustee, the Insurer, and the registered holders of the Bonds of the 2047 Series, any right, remedy or claim under or by reason of this Indenture or any covenant, condition or stipulation hereof, and all covenants, stipulations, promises and agreements in this Indenture contained by and on behalf of the Company shall be for the sole and exclusive benefit of the Company, the Trustee, the Insurer and the registered owners of the Bonds of the 2047 Series.

Section 3. Reporting Requirements. The Trustee shall provide or shall cause to be provided to the Insurer the following information:

(a) Notice of the redemption of any of the Bonds of the 2047 Series, or of any advance refunding of the Bonds of the 2047 Series, including the principal amount, maturities and CUSIP numbers thereof;

(b) Notice of the downgrading by any nationally recognized rating agency of the Company’s underlying rating, or the underlying rating on the Bonds of the 2047 Series or any parity obligations; and

Section 4. Payment Procedures. (a) If, on the third day preceding any interest payment date for the Bonds of the 2047 Series there is not on deposit with the Trustee sufficient monies available to pay all principal of and interest on the Bonds of the 2047 Series due on such date, the Trustee shall immediately notify the Insurer and the Fiscal Agent of the amount of such deficiency. If, by said interest payment date, the Company has not provided the amount of such deficiency, the Trustee shall simultaneously make available to the Insurer and to the Fiscal Agent the registration books for the Bonds of the 2047 Series maintained by the Trustee. In addition:

(i) The Trustee shall provide the Insurer with a list of the Bondholders entitled to receive principal or interest payments from the Insurer under the terms of the Policy and shall make arrangements for the Insurer and its Fiscal Agent (A) to mail checks or drafts to Bondholders entitled to receive full or partial interest payments from the Insurer and (B) to pay principal of the Bonds of the 2047 Series surrendered to the Fiscal Agent by the Bondholders entitled to receive full or partial principal payments from the Insurer; and

(ii) The Trustee shall, at the time it makes the registration books available to the Insurer pursuant to this Section 4(a), notify Bondholders entitled to receive the payment of principal of or interest on

the Bonds of the 2047 Series from the Insurer (A) as to the fact of such entitlement, (B) that the Insurer will remit to them all or part of the interest payments coming due subject to the terms of the Policy, (C) that, except as provided in Section 4(b) below, in the event that any Bondholder is entitled to receive full payment of principal from the Insurer, such Bondholder must tender his Bond with the instrument of transfer in the form provided on the Bond executed in the name of the Insurer, and (D) that, except as provided in Section 4(b) below, in the event that such Bondholder is entitled to receive partial payment of principal from the Insurer, such Bondholder must tender his Bond for payment first to the Trustee, which shall note on such Bond the portion of principal paid by the Trustee, and then, with an acceptable form of assignment executed in the name of the Insurer, to the Fiscal Agent, which will then pay the unpaid portion of principal to the Bondholder subject to the terms of the Policy.

(b) In the event that the Trustee has notice that any payment of principal of or interest on a Bond has been recovered from a Bondholder pursuant to the Bankruptcy Code of the United States by a trustee in bankruptcy in accordance with a final, nonappealable order of a court having competent jurisdiction, the Trustee shall, at the time it provides notice to the Insurer, notify all Bondholders that in the event that any Bondholder’s payment is so recovered, such Bondholder will be entitled to payment from the Insurer to the extent of such recovery, and the Trustee shall furnish to the Insurer its records evidencing the payments of principal of and interest on the Bonds of the 2047 Series which have been made by the Trustee and subsequently recovered from Bondholders, and the dates on which such payments were made.

Section 5. Notices. All notices and other communications to the Insurer hereunder shall be in writing (including facsimile transmission) and shall be delivered to Financial Guaranty Insurance Company, 125 Park Avenue, New York, NY 10017, Attention: Corporate Trust Department, Facsimile No.: 212 ###-###-####.

Section 6. Concerning the Special Insurance Provisions. The provisions of this Article IV shall apply notwithstanding anything in the Indenture to the contrary, but only so long as the Policy shall be in full force and effect and the Insurer is not in default thereunder.

ARTICLE VI

AMENDMENTS AND RESERVATIONS OF RIGHTS TO AMEND THE ORIGINAL

INDENTURE

Section 1. So Long as Bonds Issued Prior to January 1, 1997 Remain Outstanding. So long as any of the Bonds of any series originally issued prior to January 1, 1997 shall remain outstanding:

(a) Notwithstanding the provisions of Section 4 of Article III of the Original Indenture, no Bonds shall be authenticated and delivered pursuant to the provisions of Article III of the Original Indenture and issued upon the basis of net bondable value of property additions for an aggregate principal amount in excess of sixty percent (60%) of the net bondable value of property additions not subject to an unfunded prior lien.

For the purposes of Subsections (e) and (f) of the definition of “net bondable value of property additions not subject to an unfunded prior lien,” contained in Article I of the Original Indenture, and Subdivisions 8 and 9 of clause (a) of Section 4 of Article III of the Original Indenture, in all computations made with respect to a period subsequent to April 1, 1949, the deductions therein referred to shall in each case be ten-sixths (10/6ths) of the respective amounts mentioned, in lieu of ten-sevenths (10/7ths).

(b) Notwithstanding the provisions of Section 3(a) of Article VIII of the Original Indenture, no moneys received by the Trustee pursuant to Section 5(a) of Article III of the Original Indenture shall be paid over by the Trustee in an amount in excess of sixty percent (60%) of the net bondable value of property additions not subject to an unfunded prior lien, and for the purposes of Section 3 of Article VII of the Original Indenture, the amount of cash required to be deposited by the Company pursuant to Subsection (d) of said Section 3 of Article VII shall not be reduced in an amount in excess of sixty percent (60%) of the net bondable value of property additions not subject to an unfunded prior lien.

(c) For the purposes of clauses (c) and (d) of the definition of “net bondable value of property additions subject to an unfunded prior lien,” contained in Article I of the Original Indenture, and Subsection 7 of clause (a) of Section 4 of Article III of the Original Indenture, in all computations made with respect to a period subsequent to April 1, 1949, the deductions therein referred to shall in each case be ten-sixths (10/6ths) of the respective amounts mentioned, in lieu of ten-sevenths (10/7ths).

(d) Subsection (a) of Section 14, clauses (1) and (2) of Subsection (a) of Section 16 of Article IV and clause (1) of Subsection (b) of Section 1 of Article XII of the Original Indenture shall be deemed amended by substituting the words “sixty percent (60%)” for “seventy percent (70%)” where they appear in said provisions of the Original Indenture.

(e) The definition of the term “net earnings available for interest, depreciation and property retirement,” as contained in Article I of the Original Indenture, shall be deemed to mean the net earnings of the Company ascertained as follows:

(i) The total operating revenues of the Company and the net non-operating revenues of the properties of the Company shall be ascertained:

(A) From the total, determined as provided in Subsection (a), there shall be deducted all operating expenses, including all salaries, rentals, insurance, license and franchise fees, expenditures for repairs and maintenance, taxes (other than income, excess profits and other taxes measured by or dependent on net taxable income), depreciation as shown on the books of the Company or an amount equal to the minimum provision for depreciation as hereinafter defined, whichever is greater, but excluding all property retirement appropriations, all interest and sinking fund charges, amortization of stock and debt discount and expense or premium and further excluding any charges to income or otherwise for the amortization of plant or property accounts or of amounts transferred therefrom.

(B) The balance remaining after the deduction of the total amount computed pursuant to Subsection (b) from the total amount computed pursuant to Subsection (a) shall constitute the “net earnings of the Company available for interest,” provided that not more than fifteen percent (15%) of the net earnings of the Company available for interest may consist of the aggregate of (1) net non-operating income, (2) net earnings from mortgaged property other than property of the character of property additions and (3) net earnings from property not subject to the lien of this Indenture.

(C) No income received or accrued by the Company from securities and no profits or losses of capital assets shall be included in making the computations aforesaid.

(D) In case the Company shall have acquired any acquired plant or systems or shall have been consolidated or merged with any other corporation, within or after the particular period for which the calculation of net earnings of the Company

available for interest, depreciation and property retirement is made, then, in computing the net earnings of the Company available for interest, depreciation and property retirement, there may be included, to the extent they may not have been otherwise included, the net earnings or net losses of such acquired plant or system or of such other corporation, as the case may be, for the whole of such period. The net earnings or net losses of such property additions, or of such other corporation for the period preceding such acquisition or such consolidation or merger, shall be ascertained and computed as provided in the foregoing subsections of this definition as if such acquired plant or system had been owned by the Company during the whole of such period, or as if such other corporation had been consolidated or merged with the Company prior to the first day of such period.

(E) In case the Company shall have obtained the release of any property pursuant to Section 3 of Article VII of the Original Indenture, of a fair value in excess of Five Hundred Thousand Dollars ($500,000), as shown by the engineer’s certificate required by said Section 3, or shall have obtained the release of any property pursuant to Section 5 of Article VII of the Original Indenture, the proceeds of which shall have exceeded Five Hundred Thousand Dollars ($500,000), within or after the particular period for which the calculation of net earnings of the Company available for interest, depreciation and property retirement is made, then, in computing the net earnings of the Company available for interest, depreciation and property retirement, the net earnings or net losses of such property for the whole of such period shall be excluded to the extent practicable on the basis of actual earnings and expenses of such property or on the basis of such estimates of the earnings and expenses of such property as the signers of an officers’ certificate filed with the Trustee pursuant to Section 3(b) of Article III or Section 16 of Article IV of the Original Indenture shall deem proper.

(ii) The term “minimum charge for depreciation” as used herein shall mean an amount equal to (A) fifteen percent (15%) of the total operating revenues of the Company after deducting therefrom an amount equal to the aggregate cost to the Company of electric energy, gas and water purchased for resale to others and rentals paid for, or other payments made for the use of, property owned by others and leased to or operated by the Company, the maintenance of which and depreciation on which are borne by the owners, less (B) an amount equal to the expenditures for maintenance and repairs to the plants and property of the Company and included or reflected in its operating expense accounts.

(iii) The terms “net earnings available for interest, depreciation and property retirement” and “net earnings of another corporation available for interest, depreciation and property retirement” as contained in Article I of the Original Indenture, when used with respect to any property or with respect to another corporation, shall mean the net earnings of such property or the net earnings of such other corporation, as the case may be, computed in the manner provided in Subsections (a), (b), (c) and (d) hereof.

(f) Notwithstanding the provisions of clauses (1) and (2) of subsection (b) of Article III, and Subsection (b) of Section 14 of Article IV, and Subsection (b) of Section 16 of Article IV and clause (2) of Subsection (b) of Section 1 of Article XII of the Original Indenture, the computation of net earnings required therein shall be made as provided in Subsection (e) of this Section 1, and the net earnings tests required in said mentioned provisions of Articles III, IV and XII of the Original Indenture shall be based on two times the annual interest charges described in such provisions, instead of two and one-half times such charges, but shall not otherwise affect such provisions or relieve from the requirements therein pertaining to ten percent (10%) of the principal amount of Bonds therein described.

Section 2. Facsimile Signatures. All of the Bonds of the 2047 Series and of any series initially issued after the initial issuance of Bonds of the 2047 Series shall, from time to time, be executed on behalf of the Company by its Chairman of the Board, Chief Executive Officer, President or one of its Vice Presidents whose signature, notwithstanding the provisions of Section 12 of Article II of the Original Indenture, may be by facsimile, and its corporate seal (which may be in facsimile) shall be thereunto affixed and attested by its Secretary or one of its Assistant Secretaries whose signature, notwithstanding the provisions of the aforesaid Section 12, may be by facsimile.

In case any of the officers who have signed or sealed any of the Bonds of the 2047 Series or of any series initially issued after the initial issuance of Bonds of the 2047 Series manually or by facsimile shall cease to be such officers of the Company before such Bonds so signed and sealed shall have been actually authenticated by the Trustee or delivered by the Company, such Bonds nevertheless may be authenticated, issued and delivered with the same force and effect as though the person or persons who so signed or sealed such Bonds had not ceased to be such officer or officers of the Company; and also any such Bonds may be signed or sealed by manual or facsimile signature on behalf of the Company by such persons as at the actual date of the execution of any of such Bonds shall be the proper officers of the Company, although at the nominal date of any such Bond any such person shall not have been such officer of the Company.

Section 3. Reservation of Right to Amend Article VII. The Company reserves the right subject to appropriate corporate action, but without the consent or other action of holders of bonds of any series created after January 1, 1997, to make such amendments to the Original Indenture, as supplemented, as shall be necessary in order to amend Article VII thereof by adding thereto a Section 8 and a Section 9 to read as follows:

“SECTION 8. Notwithstanding any other provision of this Indenture, unless an event of default shall have happened and be continuing, or shall happen as a result of the making or granting of an application to release mortgaged property permitted by this Section 8, the Trustee shall release from the lien of this Indenture any mortgaged property if the fair value to the Company of all of the property constituting the trust estate (excluding the mortgaged property to be released but including any mortgaged property to be acquired by the Company with the proceeds of, or otherwise in connection with, such release) equals or exceeds an amount equal to 10/7ths of the aggregate principal amount of outstanding Bonds and prior lien bonds outstanding at the time of such release, upon receipt by the Trustee of:

“(a) an officers’ certificate dated the date of such release, requesting such release, describing in reasonable detail the mortgaged property to be released and stating the reason for such release;

“(b) an engineer’s certificate, dated the date of such release, stating (i) that the signer of such engineer’s certificate has examined such officers’ certificate in connection with such release, (ii) the fair value to the Company, in the opinion of the signer of such engineer’s certificate, of (A) all of the property constituting the trust estate, and (B) the mortgaged property to be released, in each case as of a date not more than 90 days prior to the date of such release, and (iii) that in the opinion of such signer, such release will not impair the security under this Indenture in contravention of the provisions hereof;

“(c) in case any bondable property is being acquired by the Company with the proceeds of, or otherwise in connection with, such release, an engineer’s certificate, dated the date of such release, as to the fair value to the Company, as of the date not more than 90 days prior to the date of such release, of the bondable property being so acquired (and if within six months prior to the date of acquisition by the Company of the bondable property being so acquired, such bondable property has been used or operated by a person or persons other than the Company in a business similar to that in which it has been or is to be used or operated by the Company, and the fair value to the Company of such bondable property, as set forth in such certificate, is not less than $25,000 and not less than 1% of the aggregate principal amount of Bonds at the time outstanding, such certificate shall be an independent appraiser’s certificate);

“(d) an officer’s certificate, dated the date of such release, stating the aggregate principal amount of outstanding Bonds and prior lien bonds outstanding at the time of such release, and stating that the fair value to the Company of all of the property constituting the trust estate (excluding the mortgaged property to be released but including any bondable property to be acquired by the Company with the proceeds of, or otherwise in connection with, such release) stated on the independent appraiser’s certificate filed pursuant to Section 8(c) equals or exceeds an amount equal to 10/7ths of such aggregate principal amount;

“(e) an officers’ certificate, dated the date of such release, stating that, the Company is not, and by the making or granting of the application will not be, in default in the performance of any of the terms and covenants of this Indenture;

“(f) an opinion of counsel, dated the date of such release, as to compliance with conditions precedent.

“SECTION 9. If the Company is unable to obtain, in accordance with any other Section of this Article VII, the release from the lien of this Indenture of any property constituting part of the trust estate, unless an event of default shall have happened and be continuing, or shall happen as a result of the making or granting of an application to release mortgaged property permitted by this Section 9, the Trustee shall release from the lien of this Indenture any mortgaged property if the fair value to the Company thereof, as shown by the engineer’s certificate filed pursuant to Section 9(b), is less than ¹/2 of 1% of the aggregate principal amount of outstanding Bonds and prior lien bonds outstanding at the time of such release, provided that the aggregate fair value to the Company of all mortgaged property released pursuant to this Section 9, as shown by all engineer’s certificates filed pursuant to Section 9(b) in any period of 12 consecutive calendar months which includes the date of such engineer’s certificate, shall not exceed 1% of the aggregate principal amount of the outstanding Bonds and prior lien bonds outstanding at the time of such release, upon receipt by the Trustee of:

“(a) an officers’ certificate, dated the date of such release, requesting such release, describing in reasonable detail the mortgaged property to be released and stating the reason for such release;

“(b) an engineer’s certificate, dated the date of such release, stating (A) that the signer of such engineer’s certificate has examined such officers’ certificate in connection with such release, (B) the fair value to the Company, in the opinion of the signer of such engineer’s certificate, of such mortgaged property to be released as of a date not more than 90 days prior to the date of such release, and (C) that in the opinion of such signer such release will not impair the security under this Indenture in contravention of the provisions hereof;

“(c) an officers’ certificate, dated the date of such release, stating the aggregate principal amount of outstanding Bonds and prior lien bonds outstanding at the time of such release, that ¹/2 of 1% of such aggregate principal amount does not exceed the fair value to the Company of the mortgaged property for which such release is applied for as shown by the engineer’s certificate referred to in Section 9(b), and that 1% of such aggregate principal amount does not exceed the aggregate fair value to the Company of all mortgaged property released from the lien of this Indenture pursuant to this Section 9 as shown by all engineer’s certificates filed pursuant to Section 9(b) in such period of 12 consecutive calendar months;

“(d) an officers’ certificate, dated the date of such release, stating that, the Company is not, and by the making or granting of the application will not be, in default in the performance of any of the terms and covenants of this Indenture; and

“(e) an opinion of counsel, dated the date of such release, as to compliance with conditions precedent.”

The Company also reserves the right subject to appropriate corporate action, but without the consent or other action of holders of Bonds of any series created after January 1, 1997 to amend, modify or delete any other provision of the Original Indenture, as supplemented, as may be necessary in order to effectuate the intents and purposes contemplated by the foregoing Sections 8 and 9.

Section 4. Reservation of Right to Delete Certain Requirements and Conditions. The Company reserves the right subject to appropriate corporate action, but without the consent or other action of holders of Bonds of any series created after January 1, 1997 to:

(a) delete as a condition to the authentication of additional Bonds pursuant to Sections 4, 5 or 6 of Article III of the Original Indenture the requirement to file or deposit with the Trustee the officers’ certificate described in Section 3(b) of Article III of the Original Indenture;

(b) delete as a condition to the consolidation or merger of the Company into, or sale by the Company of its property as an entirety or substantially as an entirety to another corporation the requirement set forth in Section 1(b)(2) of Article XII of the Original Indenture;

(c) delete as a condition to the release of property pursuant to Section 3 of Article VII of the Original Indenture, the requirement to obtain an independent engineer’s certificate under the circumstances set forth in Section 3(c) of Article VII; and

(d) amend, modify or delete any other provision of the Original Indenture, as supplemented, as may be necessary in order to effectuate the intents and purposes contemplated by this Section 4.

Section 5. Issuance of Variable Rate Bonds. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to clarify the ability of the Company to issue variable rate bonds under the Original Indenture, notwithstanding any provision of the Original Indenture to the contrary. The Company may make such other amendments to the Original Indenture as may be necessary or desirable in the opinion of the Company to effect the foregoing;

Section 6. Substitution of Bonds. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to amend the Original Indenture as may be necessary in order to permit the Company to deliver to the Trustee in substitution for any bonds issued under the Original Indenture (except Bonds of the 2047 Series, which are subject to Article III, Section 2 hereof), mortgage bonds or other similar instruments of the Company or any successor entity, whether by merger, combination or acquisition of all or substantially all of the assets of the Company, or otherwise, issued under a mortgage and deed of trust or similar instrument of the Company or any successor entity in like principal amount of like term and bearing the same rate of interest as the original bonds (such substituted bonds hereinafter being referred to as the “Substituted Mortgage Bonds”). The Substituted Mortgage Bonds may only be delivered to the Trustee upon receipt by the Trustee of (i) if the original bonds were rated by Moody’s, a letter from Moody’s (as hereinafter defined), dated within ten days prior to the date of delivery of the Substituted Mortgage Bonds, stating that its rating of the Substituted Mortgage Bonds is at least equal to its then current rating on the original bonds, (ii) if the original bonds were rated by S&P, a letter from S&P (as hereinafter defined), dated within ten days prior to the date of delivery of the Substituted Mortgage Bonds, stating that its rating to the Substituted Mortgage Bonds is at least equal to its then current rating on the original bonds, (iii) if the original bonds were rated by Fitch, a letter from Fitch (as hereinafter defined), dated within ten days prior to the date of delivery of the Substituted Mortgage Bonds, stating that its rating to the Substituted Mortgage Bonds is at least equal to its then current rating on the original bonds (iv) an opinion of counsel which may be counsel to the Company or any successor entity, to the effect that the Substituted Mortgage Bonds shall have been duly and validly authorized, executed, authenticated, and delivered and shall constitute the valid, legally binding and enforceable obligations of the Company or any successor entity enforceable in accordance with their terms, except as limited by bankruptcy, insolvency or other laws affecting the enforcement of mortgagees’ and other creditors’ rights and shall be entitled to the benefit of the mortgage and deed of trust or other similar instrument pursuant to which they shall have been issued and (v) such other certificates and documents with respect to the issuance and delivery of the Substituted Mortgage Bonds as may be required by law or as the Trustee may reasonably request. The Company may make such other amendments to the Original Indenture as may be necessary or desirable in the opinion of the Company to effect the foregoing.

“Moody’s” means Moody’s Investor Services, Inc., a corporation organized and existing under the laws of the State of Delaware, its successors and their assigns, except that if such corporation shall be dissolved or liquidated or shall no longer perform the functions of a securities rating agency, then the term “Moody’s” shall be deemed to refer to any other nationally recognized securities rating agency selected by the Company.

Section 7. Addition of a Governing Law Clause. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to amend the Original Indenture to add the following new section:

“This Indenture shall be deemed to be a contract made under the laws of the State of Kansas and for all purposes shall be construed in accordance with the laws of the State of Kansas, without regard to conflicts of laws principles thereof.”

Section 8. Event of Default for Failure to Pay Final Judgments in Excess of $100,000. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to amend the Original Indenture to delete Article IX, Section 1(j). The Company may make such other amendments to the Original Indenture as may be necessary or desirable in the opinion of the Company to effect the foregoing.

Section 9. Net Earnings Test in Connection with Property Acquisitions. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to amend the Original Indenture to delete Article IV, Section 14(b) and reserves the right to further amend, modify or delete any other provision of the Original Indenture, as supplemented, as may be necessary in order to effectuate the intents and purposes contemplated by this Section 9.

Section 10. Addition of Nuclear Fuel. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to amend the Original Indenture to (i) add Nuclear Fuel to the definition of “Property

Additions”; provided that there shall be no restrictions under the Original Indenture on the application of any controls, liens, regulations, easements, restrictions, exceptions or reservations by any governmental authority on the Nuclear Fuel, (ii) to allow the Company to at any time, unless the Company is in default in the payment of the interest on any of the bonds then outstanding or there is an ongoing event of default without any release or consent by, or report to, the Trustee, sell or otherwise dispose of, free from the lien of the Original Indenture, any Nuclear Fuel which shall have become old, inadequate, obsolete, worn out, unfit, unadapted, unserviceable, undesirable or unnecessary for use in the operations of the Company upon the replacement or substitution of such Nuclear Fuel with other Nuclear Fuel of at least equal value and subject to the lien of the Original Indenture and (iii) to further amend, modify or delete any other provision of the Original Indenture, as supplemented, as may be necessary in order to effectuate the intents and purposes contemplated by this Section 10.

The term ‘Nuclear Fuel’ shall mean (a) any fuel element, including nuclear fuel and associated means (and any similar or analogous device or substance), whether or not classified as fuel and whether or not chargeable to operating expenses, comprising or intended to comprise, or formerly comprising, the core, or other part, of a nuclear reactor or any similar or analogous device, (b) any fuel element, including nuclear fuel, and associated means (and any similar or analogous device or substance) while in the process of fabrication or preparation and special nuclear or other materials held for use in such fabrication or preparation, (c) any substances or materials formerly comprising such nuclear fuel and associated means (or any similar or analogous device or substance) and which substances or materials are undergoing or have undergone reprocessing and (d) uranium, thorium, plutonium, and any other substance or material from time to time used or selected for use by the Company as fuel material, or as potential fuel material, in a nuclear reactor or any similar or analogous device.

Section 11. Modernization of the Original Indenture. The Company reserves the right, subject to appropriate action, but without any consent or other action by holders of Bonds of the 2047 Series, or of any subsequent series of bonds, to amend the Original Indenture to:

(i) Eliminate maintenance and improvement fund requirements;

(ii) Simplify the provisions for release of obsolete property, de minimis property releases and substitution of property and unfunded property;

(iii) Permit additional terms of bonds or forms of bond in supplemental indentures, including terms for uncertificated and global securities and medium-term notes;

(iv) Make any changes necessary to conform the Mortgage with the requirements of the Trust Indenture Act;

(v) Add defeasance provisions providing for covenant and legal defeasance options;

(vi) Permit the Company to remove the trustee in certain circumstances;

(vii) Provide for direction to the trustee under the Mortgage to vote pledged prior lien bonds for specified amendments to the prior lien mortgage;

(viii) Provide broader investment directions to the trustee or permitting the Company to direct investment of money held by the Trustee, so long as there is no event of default under the Mortgage;

(ix) Amend the definition of “Excepted Property” to exclude property which generally cannot be mortgaged without undue administrative burden (i.e. automobiles), but allowing the Company to subject Excepted Property to the Mortgage;

(x) Amend the definition of “Bondable Property” to allow all mortgaged property to be bondable; and

(xi) Update the definition of “Permitted Liens.”

ARTICLE VII

MISCELLANEOUS PROVISIONS

Section 1. Acceptance of Trust. The Trustee accepts the trusts herein declared, provided, created or supplemented and agrees to perform the same upon the terms and conditions herein and in the Original Indenture, as amended, set forth and upon the following terms and conditions.

Section 2. Responsibility and Duty of Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made by the Company solely. In general each and every term and condition contained in Article XIII of the Original Indenture, as amended by the Second Supplemental Indenture, shall apply to and form part of this Supplemental Indenture with the same force and effect as if the same were herein set forth in full with such omissions, variations and insertions, if any, as may be appropriate to make the same conform to the provisions of this Supplemental Indenture.

Section 3. Parties to Include Successors and Assigns. Whenever in this Supplemental Indenture either of the parties hereto is named or referred to, such reference shall, subject to the provisions of Articles XII and XIII of the Original Indenture, be deemed to include the successors and assigns of such party, and all the covenants and agreements in this Supplemental Indenture contained by or on behalf of the Company, or by or on behalf of the Trustee, shall, subject as aforesaid, bind and inure to the respective benefits of the respective successors and assigns of such parties, whether so expressed or not.

Section 4. Benefits Restricted to Parties and to Holders of Bonds and Coupons. Nothing in this Supplemental Indenture, expressed or implied, is intended or shall be construed, to confer upon, or to give to, any person, firm or corporation, other than the parties hereto and the holders of the Bonds and coupons outstanding under the Indenture, any right, remedy or claim under or by reason of this Supplemental Indenture or any covenant, condition, stipulation, promise or agreement hereof, and all the covenants, conditions, stipulations, promises and agreements in this Supplemental Indenture contained by and on behalf of the Company shall be for the sole and exclusive benefit of the parties hereto, and of the holders of the Bonds and of the coupons outstanding under the Indenture.

Section 5. Execution in Counterparts. This Supplemental Indenture may be executed in several counterparts, and all such counterparts executed and delivered, each as an original, shall constitute but one and the same instrument.

Section 6. Titles of Articles Not Part of the Fortieth Supplemental Indenture. The Titles of the several Articles of this Supplemental Indenture shall not be deemed to be any part thereof.

IN WITNESS HEREOF, WESTAR ENERGY, INC., party hereto of the first part, has caused its corporate name to be hereunto affixed, and this instrument to be signed and sealed by its Chairman of the Board, President, Chief Executive Officer or a Vice President, and its corporate seal to be attested by its Secretary or an Assistant Secretary for and in its behalf, and The Bank of New York Trust Company, N.A., party hereto of the second part, has caused its corporate name to be hereunto affixed, and this instrument to be signed and sealed by its duly authorized officer and its corporate seal to be attested by its duly authorized officer, all as of the day and year first above written.

(CORPORATE SEAL)


		WESTAR ENERGY, INC.

		By:	/s/ Mark A. Ruelle
			Mark A. Ruelle, Executive Vice President and Chief Financial Officer
ATTEST:

By:	/s/ Larry D. Irick
	Larry D. Irick, Vice President, General Counsel and Corporate Secretary


Executed, sealed and delivered by WESTAR ENERGY, INC. in the presence of:

By:	/s/ Peter L. Sumners

By:	/s/ Anthony D. Somma
		THE BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee

		By:	/s/ Judy Bartolini
			Judy Bartolini, Vice President
ATTEST:

By:	/s/ Linda Garcia
	Linda Garcia, Vice President

Executed, sealed and delivered by THE BANK OF NEW YORK TRUST COMPANY, N.A. in the presence of:

By:	/s/ Robert Cafarelli

By:	/s/ D. G. Donovan

IN WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official seal on the day and year last above written.

/s/ Patti Beasley

Notary Public

My Commission Expires 11/18/08

S-2

BE IT REMEMBERED, that on this 14^th day of May, 2007, before me, the undersigned, a Notary Public within and for the County and State aforesaid, personally came Judy Bartolini and Linda Garcia, of The Bank of New York Trust Company, N.A., a national banking association, who are personally known to me to be such officers, and who are personally known to me to be the same persons who executed as such officers the within instrument of writing, and such persons duly acknowledged the execution of the same to be the act and deed of said corporation.

/s/ Julie Braun

Notary Public

My Commission Expires 6/23/10

S-3

BE IT REMEMBERED, that on this 15^th day of May, 2007, before me, the undersigned, a Notary Public within and for the County and State aforesaid, personally came Mark A. Ruelle and Larry D. Irick, of Westar Energy, Inc., a corporation duly organized, incorporated and existing under the laws of the State of Kansas, who are personally known to me to be such officers, being by me respectively duly sworn, did each say that the said Mark A. Ruelle is Executive Vice President and Chief Financial Officer and that the said Larry D. Irick is Vice President, General Counsel and Corporate Secretary of said corporation, that the consideration of and for the foregoing instrument was actual and adequate, that the same was made and given in good faith, for the uses and purposes therein set forth and without any intent to hinder, delay, or defraud creditors or purchasers.

IN WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official seal on the day and year last above written.

/s/ Patti Beasley

Notary Public

My Commission Expires 11/18/08

S-4

APPENDIX A

FORTIETH SUPPLEMENTAL INDENTURE

Dated as of May 15, 2007

Westar Energy, Inc.

The Bank of New York Trust Company, N.A.

(as successor to

Harris Trust and Savings Bank)

DESCRIPTION OF PROPERTIES

LOCATED IN THE STATE OF KANSAS

FIRST

PARCELS OF REAL ESTATE

Shawnee County

800 Kansas Building Site

Tract 1:

Lots 254, 256, 258, 260, 262, and 264 on Kansas Avenue, in the City of Topeka, Shawnee County, Kansas, AND ALSO the West ¹/2 of the vacated alley lying East of and adjoining said Lots 254, 256, 258, 260, 262 and 264.

Tract 2:

Lots 103, 105, 107, 109, and 111 on Eighth Avenue East in the City of Topeka, Shawnee County, Kansas, together with the East ¹/2 of the vacated alley lying West and adjoining said Lot 103 and the North ¹/2 of the vacated alley lying South and adjoining said East ¹/2 of vacated alley and South of and adjoining Lots 103, 105 and the West 5 feet of Lot 107 aforesaid.

Tract 3:

The South ¹/2 of vacated alley North of and adjoining the East 65 feet of Lot 266 on Kansas Avenue, in the City of Topeka, Shawnee County, Kansas.

Tract 4:

All of Lots 113, 115, 117, 119 on Eighth Avenue East, in the City of Topeka, Shawnee County, Kansas.

The above described tracts together comprising a parcel of land in the City of Topeka, Shawnee County, Kansas, described as follows:

Beginning at the Northwest corner of Lot 254 on Kansas Avenue, in the City of Topeka, Shawnee County, Kansas; thence South along the West line of Lots 254, 256, 258, 260, 262, and 264 on Kansas Avenue, a distance of 150.07 feet, more or less, to the Southwest corner of said Lot 264 on said Kansas Avenue; thence East along the South line of said Lot 264 and the South line of the vacated alley (which is also the North line of Lot 266) a distance of 150.26 feet, more or less, to the Northeast corner of Lot 266 on said Kansas Avenue; thence North along the East line of the vacated alley, a distance of 20 feet to a point on the South line of Lot 107 on Eighth Avenue East; thence East along the South line of Lots 107,109, 111, 113, 115, 117 and 119, a distance of 170.26 feet, more or less to the Southeast corner of Lot 119 on said Eighth Avenue East; thence North along the East line of said Lot 119 a distance of 130.06 feet, more or less, to the Northeast corner of said Lot 119; thence West along the North line of odd Lots 103 to 119 both inclusive, on Eighth Avenue East, and along the North line of vacated alley, and the North line of Lot 254 on Kansas Avenue (being also the South line of East 8th Street) a distance of 320.57 feet, more or less, to the point of beginning.

LYON COUNTY

Emporia Energy Center Plant Site

The Northeast Quarter of Section 34, Township 18 South, Range 12 East of the 6^th P.M., Lyon County, Kansas.

Emporia Energy Center Additional Land

The West Half of the Southeast Quarter of Section 34, Township 18 South, Range 12 East of the 6^th P.M., Lyon County, Kansas.

ALSO:

The Southwest Quarter of Section 34, Township 18 South, Range 12 East of the 6^th P.M., Lyon County, Kansas, EXCEPT a tract described as follows: Beginning at the Southwest corner of said SW¹/4; thence northerly on the west

line of said SW¹/4 on an assumed bearing of North 00 degrees 00 minutes 10 seconds West for a distance of 829.79 feet; thence North 89 degrees 48 minutes 30 seconds East for a distance of 350.00 feet; thence South 00 degrees 00 minutes 10 seconds East for a distance of 829.72 feet to a point on the south line of said SW¹/4; thence South 89 degrees 48 minutes 30 seconds West along the said south line for a distance of 350.00 feet to the point of beginning.

SEDGWICK COUNTY

Goddard Substation

The South 500 feet of the West 800 feet of the South Half of the Northwest Quarter of Section 29, Township 27 South, Range 2 West of the Sixth Principle Meridian, Sedgwick County, Kansas.

AFFIDAVIT

Anthony D. Somma, being first duly sworn, states as follows:

1. That he is the duly elected, qualified, and acting Treasurer of Westar Energy, Inc., a Kansas corporation (the “Company”), and he is in charge of the records of the Company showing the total valuation of its properties and the valuation of said properties in the state in which it operates.

2. That from the records in his office and to the best of his knowledge and belief, and in accordance with K.S.A. 79-3106, the assessed valuation of the Company’s properties in all states and the relative percentage of said assessed valuation is:


	ASSESSED VALUATION		PERCENT OF TOTAL
Kansas	$	451,097,407.45	100.00	%

3. The relative assessed valuation within the State of Kansas applied to the mortgage registration fee of the $150,000,000.00 aggregate principal amount of First Mortgage, 6.10% Series Due 2047, the “Bonds,” recited in the form of the Fortieth Supplemental Indenture, dated as of May 15, 2007 (supplemental to the Company’s Indenture of Mortgage and Deed of Trust, dated as of July 1, 1939), amounts to $150,000,000.00.

4. That of the $150,000,000.00 principal indebtedness allocated to the State of Kansas in the Fortieth Supplemental Indenture, $43,822,423 was included as principal indebtedness under the original Mortgage and Deed of trust and subsequent Supplemental Indentures of which $1,077,622,423 was allocated to the State of Kansas and upon which the required mortgage registration tax was paid. As of this date the amount of the Kansas allocated indebtedness outstanding is $1,033,840,000, leaving $43,822,423 exempt from tax under K.S.A. 79-3102 as shown on Exhibit A attached hereto.

5. That after applying said $43,822,423 credit against the Kansas allocated amount of $150,000,000.00, the amount subject to the requirements of K.S.A. 79-3102 is $106,177,577.

6. That the total payment required under K.S.A. 79-3102 for and on account of the issuance of said $150,000,000.00 aggregate principal amount of the Bonds is $276,061.70.

7. That the above-mentioned $150,000,000.00 aggregate principal amount of Bonds are to be issued on or about May 16, 2007.

8. That in connection with the issuance of said $150,000,000.00 aggregate principal amount of the Bonds and the recordation of said Fortieth Supplemental Indenture, the payment required under K.S.A. 79-3102 is $276,245.70.

Further affiant saith not.

Signed this 15^th day of May, 2007.

/s/ Anthony D. Somma

Anthony D. Somma

Treasurer

Subscribed and sworn to before me this 15^th day of May, 2007.

/s/ Jean Macfee

Notary Public

My Appointment Expires:

2/12/10

The above computation of the total mortgage registration tax due, based on the

$150,000,000.00 aggregate principal amount of the above-mentioned Bonds is approved.

Dated this day of , 2007.



Register of Deeds, Shawnee County, Kansas

Fortieth Supplemental Indenture recorded in Book ,

Page , Shawnee County Register of Deeds.

“EXHIBIT A”


Supplemental Indenture to Mortgage	Book/Page or File Number	Kansas Allocation on Which Tax Paid		Cumulative Credit
Mortgage	778/216		NA		NA
1	778/346	$	26,500,000	$	26,500,000
2	1011/184		10,000,000		36,500,000
4	1029/150		6,500,000		43,000,000
5	1034/207		32,500,000		75,500,000
7	1104/291		5,250,000		80,750,000
8	1120/299		4,750,000		85,500,000
9	1209/559		8,000,000		93,500,000
10	1453/74		13,000,000		106,500,000
11	1699/290		19,000,000		125,500,000
12	1739/79		20,000,000		145,500,000
13	1873/646		35,000,000		180,500,000
14	1916/293		45,000,000		225,500,000
15	1951/467		32,000,000		257,500,000
16	1962/949		30,000,000		287,500,000
17	1991/903		35,000,000		322,500,000
20	2149/361		25,000,000		347,500,000
21	2161/653		60,000,000		407,500,000
22	2194/131		58,500,000		466,000,000
24	2401/33		50,000,000		516,000,000
25	2501/925		44,940,800		560,940,800
26	2578/75		65,821,300		626,762,100
27	2713/228		321,937,500		948,699,600
33	3144/930		128,962,823		1,077,662,423
39	4223/006		0		1,077,662,423

Bonds Currently Outstanding Based on Kansas Allocated Tax					1,033,840,000

Balance of Credit Available to be Applied to Current Issue					43,822,423