Exhibit 10.4

June 30, 2004

Great Plains Energy Incorporated
1201 Walnut
Kansas City, Missouri 64141
Attention: Andrea F. Bielsker, Treasurer

Re:     First Amendment to Credit Agreement

Dear Ladies/Gentlemen:

          Please refer to the 364-Day Credit Agreement dated as of March 5, 2004
(the "Credit Agreement") among Great Plains Energy Incorporated (the
"Borrower"), various financial institutions and Bank One, NA, as Administrative
Agent. Capitalized terms used but not defined herein have the respective
meanings set forth in the Credit Agreement.

          At the request of the Borrower, the Required Lenders agree that the
Credit Agreement is amended as follows:

          (a)     The definition of "Excluded Issuance" set forth in Section 1.1
of the Credit Agreement is amended by replacing the reference to "$100,000,000"
therein with "$140,000,000".

          (b)     Section 6.12(xvii) is amended in its entirety to read as
follows:

(xvii)     Liens on Property of Strategic Energy, L.L.C. and its Subsidiaries
securing Indebtedness of Strategic Energy, L.L.C. under the credit facilities
referred to in clause (iv)(a) of the definition of "Excluded Issuance".

          This letter amendment may be executed in any number of counterparts
and by the different parties on separate counterparts, and each such counterpart
shall be deemed to be an original but all such counterparts shall together
constitute one and the same letter amendment. This letter amendment shall become
effective when the Administrative Agent has received (by facsimile or otherwise)
counterparts hereof executed by the Borrower and the Required Lenders.

          This letter amendment shall be construed in accordance with the
internal laws (and not the law of conflicts) of the State of Illinois, but
giving effect to Federal laws applicable to national banks.

          The Borrower represents and warrants to the Administrative Agent and
the Lenders that, after giving effect to the effectiveness hereof, (a) the
representations and warranties contained in Article V of the Credit Agreement
are true and correct (except to the extent any such representation or warranty
is stated to relate solely to an earlier date, in which case such representation
or warranty shall have been true and correct on and as of such earlier date) and
(b) no Default or Unmatured Default exists.

          Except as specifically set forth above, the Credit Agreement shall
remain in full force and effect and is hereby ratified and confirmed in all
respects. After the effectiveness hereof, all references in the Credit Agreement
to "Agreement" or similar terms shall refer to the Credit Agreement as amended
hereby.

Very truly yours,

BANK ONE, NA, as Administrative Agent and as a Lender

By: /s/Jane Bek Keil
Name: Jane Bek Keil
Title: Director

 

 

BNP PARIBAS

By: /s/Mark A. Renaud
Title: Managing Director

By: /s/Dan Cozine
Title: Managing Director

COMMERZBANK AG
New York and Grand Cayman Branches

By: ______________________________________
Title: _____________________________________

KEYBANK NATIONAL ASSOCIATION

By: /s/Laurie Muller
Title: Senior Vice President

WACHOVIA BANK, NATIONAL ASSOCIATION

By: /s/Rotcher Watkins
Title: Managing Director

COBANK, ACB

By: ______________________________________
Title: _____________________________________

THE BANK OF NEW YORK

By: /s/Nathan S. Howard
Title: Vice President

THE BANK OF NOVA SCOTIA

By: /s/Denis P. O'Meara
Title: Managing Director

PNC BANK, NATIONAL ASSOCIATION

By: /s/Thomas A. Majeski
Title: Vice President

U.S. BANK, NATIONAL ASSOCIATION

By: ______________________________________
Title: _____________________________________

BANK HAPOALIM

By: ______________________________________
Title: _____________________________________

LASALLE BANK NATIONAL ASSOCIATION

By: /s/Meghan C. Payne
Title: FVP

BANK OF AMERICA, N.A.

By: /s/Michelle A. Schoenfeld
Title: Principal

THE BANK OF TOKYO-MITSUBISHI, LTD.

By: ______________________________________
Title: _____________________________________

MIZUHO CORPORATE BANK, LTD.

By: ______________________________________
Title: _____________________________________

FLEET NATIONAL BANK

By: /s/Michelle A. Schoenfeld
Title: Principal

FIFTH THIRD BANK

By: /s/Christine L. Wagner
Title: Vice President

MERRILL LYNCH BANK USA

By: /s/Louis Alder
Title: Director

Acknowledged and Agreed:

GREAT PLAINS ENERGY INCORPORATED

By: /s/Andrea F. Bielsker
Name: Andrea F. Bielsker
Title: Senior Vice President - Finance and
        Chief Financial Officer and Treasurer