Exhibit
      No. 10.1.f














October
      2,
      2006









TO:
            LaSalle
                Bank National Association, as contractual representative for the
                Lenders,
                (the “Administrative Agent”) under that certain Amended and Restated
                Credit Agreement, dated as of July 2, 2004 (the “Credit Agreement”), by
                and among Strategic Energy, L.L.C. (the “Borrower”), the financial
                institutions from time to time parties thereto as lenders (the “Lenders”)
                and the Administrative Agent.




Unless
      otherwise defined herein, terms defined or used in that certain Amended and
      Restated Limited Guaranty dated as of July 2, 2004 and reaffirmed from time
      to
      time from Great Plains Energy Incorporated (the “Guarantor”) in favor of the
      Lenders under the Credit Agreement (the “GPE Guaranty”) shall have the same
      meanings in this Guaranty Amount Amendment Agreement.




Upon
      the
      Effective Date (as hereinafter defined), the Guarantor amends the GPE Guaranty
      to decrease the Guaranty Adjustment Amount to $12,500,000 (which amount is
      not
      less than zero (0)).




The
      Guarantor hereby represents and warrants that:




(i)
      The
      Guarantor (a) is a corporation duly organized, validly existing and in existence
      under the laws of the jurisdiction of its organization, (b) is duly qualified
      to
      do business as a foreign corporation and is in good standing under the laws
      of
      each jurisdiction in which failure to be so qualified and in good standing
      could
      reasonably be expected to have a material adverse effect on the business,
      condition (financial or otherwise), operations, performance, properties or
      prospects of the Guarantor, and (c) has all requisite corporate power and
      authority to own, operate and encumber its property;




(ii)
      The
      Guarantor has the requisite corporate power and authority to execute, deliver
      and perform this Guaranty Amount Amendment Agreement and any other document
      required to be delivered by it under the Credit Agreement or the GPE Guaranty,
      and this Guaranty Amount Amendment Agreement has been duly executed and
      delivered and constitutes the legal, valid and binding obligation of the
      Guarantor enforceable against the Guarantor in accordance with its terms;




(iii)
      The
      execution, delivery and performance of this Guaranty Amount Amendment Agreement
      do not and will not (a) conflict with the Articles of Incorporation or By-Laws
      of the Guarantor, (b) require any approval of the Guarantor’s shareholders
      except such as has been obtained, (c) require any approval or consent of any
      Person or Governmental Authority, or under the terms of any material agreement
      except as such has been obtained, and (d) will not result in or require the
      creation of any lien or security interest upon or with respect to any of the
      properties or assets of the Guarantor other than pursuant to the Loan Documents;





(iv)
      No
      Default or Unmatured Default has occurred and is continuing under the Credit
      Agreement or will result from the execution, delivery and performance of this
      Guaranty Amount Amendment Agreement; and




(v)
      No
      Event of Default or GPE Cross Default has occurred and is continuing under
      the
      GPE Guaranty.




This
      Guaranty Amount Amendment Agreement, and the amendment of the GPE Guaranty
      contemplated thereby, will become effective on the date that all of the
      following conditions precedent have been met (or waived) as determined by the
      Administrative Agent in its sole discretion (the “Effective Date”): (i)
      execution of this Guaranty Amount Amendment Agreement by the Guarantor, the
      Borrower and the Administrative Agent, (ii) the representations and warranties
      contained herein shall be true and correct in all respects, and (iii) receipt
      by
      the Administrative Agent of any certificates establishing compliance with the
      Financial Covenants.




Except
      as
      expressly set forth herein, this Guaranty Amount Amendment Agreement shall
      not
      be deemed to waive or modify any provision of the GPE Guaranty and, as so
      modified, the GPE Guaranty is hereby reaffirmed and remains in full force and
      effect. This Guaranty Amount Amendment Agreement shall be binding upon and
      inure
      to the benefit of the parties hereto and their respective successors and
      assigns. THIS GUARANTY AMOUNT AMENDMENT AGREEMENT SHALL BE GOVERNED BY,
      CONSTRUED UNDER AND ENFORCED IN ACCORDANCE WITH, THE INTERNAL LAW, AS OPPOSED
      TO
      THE CONFLICT OF LAWS PROVISIONS, OF THE STATE OF ILLINOIS. This Guaranty Amount
      Amendment Agreement may be delivered by facsimile and executed in one or more
      counterparts and by different parties in separate counterparts, each of which
      when so executed and delivered shall be deemed to be an original, but all of
      which counterparts taken together shall constitute but one and the same
      agreement.














GREAT
      PLAINS ENERGY INCORPORATED









By:  _________________________________




Name:  Michael
      W. Cline




Title:  Treasurer
      and Chief Risk Officer




Date:  _________________________________














Acknowledged
      and Agreed:





STRATEGIC
      ENERGY, L.L.C.









By:  _________________________________




Name:  _________________________________




Title:  _________________________________




Date:  _________________________________














LASALLE
      BANK NATIONAL ASSOCIATION,


as
      Administrative Agent









By:  _________________________________




Name:  _________________________________




Title:  _________________________________




Date:  _________________________________