1
 
                                                                   EXHIBIT 99(A)
 
                             LETTER OF TRANSMITTAL
 
                            CONSUMERS ENERGY COMPANY
 
                               OFFER TO EXCHANGE
    SENIOR NOTES, 6.20% RESET PUT SECURITIES (REPS)(SM), SERIES B, DUE 2008
                       FOR ANY AND ALL OF THE OUTSTANDING
    SENIOR NOTES, 6.20% RESET PUT SECURITIES (REPS)(SM), SERIES A, DUE 2008
 
            THIS EXCHANGE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
             5:00 P.M., NEW YORK CITY TIME, ON              , 1998
                          UNLESS THE OFFER IS EXTENDED
 
                            THE CHASE MANHATTAN BANK
                             (THE "EXCHANGE AGENT")
 
  By Mail, (Certified, Registered, Overnight or First Class) or Hand Delivery:
                            The Chase Manhattan Bank
                           55 Water Street, Room 234
                                 North Building
                            New York, New York 10041
 
                                 By Facsimile:
                        (For Eligible Institutions Only)
                                 (212) 638-7380
 
                                Telephone Number
                                 (212) 638-0828
 
   DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR
 TRANSMISSION OF INSTRUCTIONS VIA A FACSIMILE NUMBER OTHER THAN THE ONES LISTED
 ABOVE WILL NOT CONSTITUTE A VALID DELIVERY. THE INSTRUCTIONS ACCOMPANYING THIS
LETTER OF TRANSMITTAL SHOULD BE READ CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL
                                 IS COMPLETED.
   2
 
     The undersigned hereby acknowledges receipt of the Prospectus dated
            , 1998 (the "Prospectus") of Consumers Energy Company (the
"Company") and this Letter of Transmittal, which together constitute the
Company's offer (the "Exchange Offer") to exchange $1,000 principal amount of
its Senior Notes, 6.20% Reset Put Securities (REPS)(SM), Series B, Due 2008 (the
"Exchange Notes"), which have been registered under the Securities Act of 1933,
as amended (the "Securities Act"), pursuant to a Registration Statement of which
the Prospectus is a part, for each $1,000 principal amount of its outstanding
Senior Notes, 6.20% Reset Put Securities (REPS)(SM), Series A, Due 2008 (the
"Notes"), respectively. The term "Expiration Date" shall mean 5:00 p.m., New
York City time, on             , 1998 unless the Company, in its reasonable
judgment, extends the Exchange Offer, in which case the term shall mean the
latest date and time to which the Exchange Offer is extended. Capitalized terms
used but not defined herein have the meaning given to them in the Prospectus.
 
     YOUR BANK OR BROKER CAN ASSIST YOU IN COMPLETING THIS FORM. THE
INSTRUCTIONS INCLUDED WITH THIS LETTER OF TRANSMITTAL MUST BE FOLLOWED.
QUESTIONS AND REQUESTS FOR ASSISTANCE OR FOR ADDITIONAL COPIES OF THE PROSPECTUS
AND THIS LETTER OF TRANSMITTAL MAY BE DIRECTED TO THE EXCHANGE AGENT.
 
     List on the next page the Notes to which this Letter of Transmittal
relates. If the space indicated is inadequate, the Certificate of Registration
Numbers and Principal Amounts should be listed on a separately signed schedule
affixed hereto.
- --------------------------------------------------------------------------------
                      DESCRIPTION OF NOTES TENDERED HEREBY
 
 


- -------------------------------------------------------------------------------------------------------------------------------
                  NAME(S) AND ADDRESS(ES)
                   OF REGISTERED OWNER(S)
                      (PLEASE FILL IN)
                                                                                                  
- -------------------------------------------------------------------------------------------------------------------------------
                                                                  CERTIFICATE             AGGREGATE
                                                                       OR              PRINCIPAL AMOUNT         PRINCIPAL
                                                                  REGISTRATION           REPRESENTED              AMOUNT
                                                                   NUMBER(S)*              BY NOTES             TENDERED**
                                                              ---------------------------------------------------------------
 
                                                              ---------------------------------------------------------------
 
                                                              ---------------------------------------------------------------
 
                                                              ---------------------------------------------------------------
                                                                     Total
- -------------------------------------------------------------------------------------------------------------------------------

 
  * Need not be completed by Book-Entry Holders.
 
 ** Unless otherwise indicated, the Holder will be deemed to have tendered the
    Full Aggregate Principal Amount represented by such Notes. All Tenders must
    be in integral multiples of $1,000.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
     This Letter of Transmittal is to be used (i) if certificates of Notes are
to be forwarded herewith, (ii) if delivery of Notes is to be made by book-entry
transfer to an account maintained by the Exchange Agent at The Depository Trust
Company (the "Depository"), pursuant to the procedures set forth in "The
Exchange Offer -- Procedures for Tendering Notes" in the Prospectus or (iii) if
tender of the Notes is to be made according to the guaranteed delivery
procedures described in the Prospectus under the caption "The Exchange
Offer -- Guaranteed Delivery Procedures." See Instruction 2. DELIVERY OF
DOCUMENTS TO A BOOK-ENTRY TRANSFER FACILITY DOES NOT CONSTITUTE DELIVERY TO THE
EXCHANGE AGENT.
 
     The term "Holder" with respect to the Exchange Offer means any person in
whose name Notes are registered on the books of the Company or any other person
who has obtained a properly completed bond power from the registered holder. The
undersigned has completed, executed and delivered this Letter of Transmittal to
indicate the action the undersigned desires to take with respect to the Exchange
Offer. Holders who wish to tender their Notes must complete this letter in its
entirety.
 
                                        2
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[ ] CHECK HERE IF TENDERED NOTES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER MADE
    TO AN ACCOUNT MAINTAINED BY THE EXCHANGE AGENT WITH THE DEPOSITORY AND
    COMPLETE THE FOLLOWING:
 
  Name of Tendering Institution
- --------------------------------------------------------------------------------
 
       [ ] The Depository Trust Company
 
  Account Number
- --------------------------------------------------------------------------------
 
  Transaction Code Number
- --------------------------------------------------------------------------------
 
     Holders whose Notes are not immediately available or who cannot deliver
their Notes and all other documents required hereby to the Exchange Agent on or
prior to the Expiration Date must tender their Notes according to the guaranteed
delivery procedure set forth in the Prospectus under the caption "The Exchange
Offer -- Guaranteed Delivery Procedures." See Instruction 2.
 
[ ] CHECK HERE IF TENDERED NOTES ARE BEING DELIVERED PURSUANT TO A NOTICE OF
    GUARANTEED DELIVERY AND COMPLETE THE FOLLOWING:
 
  Name of Registered Holder(s)
- --------------------------------------------------------------------------------
 
  Name of Eligible Institution that Guaranteed Delivery
                ----------------------------------------------------------------
 
  If delivery by book-entry transfer:
 
  Account Number
- --------------------------------------------------------------------------------
 
  Transaction Code Number
- --------------------------------------------------------------------------------
 
[ ] CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
    COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS
    THERETO.
 
  Name
- --------------------------------------------------------------------------------
 
  Address
- --------------------------------------------------------------------------------
 
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              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY
 
Ladies and Gentlemen:
 
     Upon the terms and subject to the conditions of the Exchange Offer, the
undersigned hereby tenders to the Company the principal amount of the Notes
indicated above. Subject to, and effective upon, the acceptance for exchange of
such Notes tendered hereby, the undersigned hereby exchanges, assigns and
transfers to, or upon the order of, the Company all right, title and interest in
and to such Notes as are being tendered hereby, including all rights to accrued
and unpaid interest thereon as of the Expiration Date. The undersigned hereby
irrevocably constitutes and appoints the Exchange Agent the true and lawful
agent and attorney-in-fact of the undersigned (with full knowledge that said
Exchange Agent acts as the agent of the Company in connection with the Exchange
Offer) to cause the Notes to be assigned, transferred and exchanged. The
undersigned represents and warrants that it has full power and authority to
tender, exchange, assign and transfer the Notes and to acquire Exchange Notes
issuable upon the exchange of such tendered Notes, and that when the same are
accepted for exchange, the Company will acquire good and unencumbered title to
the tendered Notes, free and clear of all liens, restrictions, charges and
encumbrances and not subject to any adverse claim.
 
     The undersigned represents to the Company that (A) it is not an affiliate
of the Company, (B) it is not engaged in, and does not intend to engage in, and
has no arrangement or understanding with any person to participate in, a
distribution of the Exchange Notes to be issued in the Exchange Offer and (C) it
is acquiring the Exchange Notes in its ordinary course of business. If the
undersigned or the person receiving the Exchange Notes covered hereby is a
broker-dealer that is receiving the Exchange Notes for its own account in
exchange for Notes that were acquired as a result of market-making activities or
other trading activities, the undersigned acknowledges that it or such other
person will deliver a prospectus in connection with any resale of such Exchange
Notes; however, by so acknowledging and by delivering a prospectus, the
undersigned will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act. The undersigned and any such other person
acknowledges that, if they are participating in the Exchange Offer for the
purpose of distributing the Exchange Notes, (i) they cannot rely on the position
of the staff of the Securities and Exchange Commission enunciated in Exxon
Capital Holdings Corporation (available May 13, 1988) as interpreted in the
Securities and Exchange Commission's letter to Shearman & Sterling dated July 2,
1993. Morgan Stanley & Co., Inc. (available June 5, 1991), Warnaco, Inc.
(available June 5, 1991), and Epic Properties, Inc. (available October 21, 1991)
or similar no-action letters and, in the absence of an exemption therefrom, must
comply with the registration and prospectus delivery requirements of the
Securities Act in connection with the resale transaction and (ii) failure to
comply with such requirements in such instance could result in the undersigned
or any such other person incurring liability under the Securities Act for which
such persons are not indemnified by the Company. If the undersigned or the
person receiving the Exchange Notes covered by this letter is an affiliate (as
defined under Rule 405 of the Securities Act) of the Company, the undersigned
represents to the Company that the undesigned understands and acknowledges that
such Exchange Notes may not be offered for resale, resold or otherwise
transferred by the undersigned or such other person without registration under
the Securities Act or an exemption therefrom.
 
     The undersigned also warrants that it will, upon request, execute and
deliver any additional documents deemed by the Exchange Agent or the Company to
be necessary or desirable to complete the exchange, assignment and transfer of
tendered Notes or transfer ownership of such Notes on the account books
maintained by a book-entry facility. The undersigned further agrees that
acceptance of any tendered Notes by the Company and the issuance of Exchange
Notes in exchange therefor shall constitute performance in full by the Company
of its obligations under the Registration Rights Agreement and that the Company
shall have no further obligations or liabilities thereunder for the registration
of the Notes or the Exchange Notes.
 
     The Exchange Offer is subject to certain conditions set forth in the
Prospectus under the caption "The Exchange Offer -- Conditions." The undersigned
recognizes that as a result of these conditions (which may be waived, in whole
or in part, by the Company), as more particularly set forth in the Prospectus,
the Company may not be required to exchange any of the Notes tendered hereby
and, in such event, the Notes not exchanged will be returned to the undersigned
at the address shown below the signature of the undersigned.
 
     All authority herein conferred or agreed to be conferred shall survive the
death or incapacity of the undersigned and every obligation of the undersigned
hereunder shall be binding upon the heirs, personal representatives, successors
and assigns of the undersigned. Tendered Notes may be withdrawn at any time
prior to the Expiration Date.
 
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     Unless otherwise indicated in the box entitled "Special Registration
Instructions" or the box entitled "Special Delivery Instructions" in this Letter
of Transmittal, certificates for all Exchange Notes delivered in exchange for
tendered Notes, and any Notes delivered herewith but not exchanged, will be
registered in the name of the undersigned and shall be delivered to the
undersigned at the address shown below the signature of the undersigned. If an
Exchange Note is to be issued to a person other than the person(s) signing this
Letter of Transmittal, or if the Exchange Note is to be mailed to someone other
than the person(s) signing this Letter of Transmittal or to the person(s)
signing this Letter of Transmittal at an address different than the address
shown on this Letter of Transmittal, the appropriate boxes of this Letter of
Transmittal should be completed. If Notes are surrendered by Holder(s) that have
completed either the box entitled "Special Registration Instructions" or the box
entitled "Special Delivery Instructions" in this Letter of Transmittal,
signature(s) on this Letter of Transmittal must be Medallion Guaranteed by an
Eligible Institution (defined in Instruction 2).
 
          ------------------------------------------------------------
 
                              SPECIAL REGISTRATION
                                  INSTRUCTIONS
 
        To be completed ONLY if the Exchange Notes are to be issued in the
   name of someone other than the undersigned.
 
   Name:
   ----------------------------------------------------
 
   Address:
   -------------------------------------------------
 
   ------------------------------------------------------------
 
   Book-Entry Transfer Facility Account:
   ------------------
 
          ------------------------------------------------------------
   Employee Identification or Social Security Number:
 
          ------------------------------------------------------------
                             (PLEASE PRINT OR TYPE)
 
          ------------------------------------------------------------
          ------------------------------------------------------------
 
                                SPECIAL DELIVERY
                                  INSTRUCTIONS
 
        To be completed ONLY if the Exchange Notes are to be sent to someone
   other than the undersigned, or to the undersigned at an address other than
   that shown under "Description of Notes Tendered Hereby."
 
   Name:         ------------------------------------------------------------
 
   Address:       -----------------------------------------------------------
 
          ------------------------------------------------------------
                             (PLEASE PRINT OR TYPE)
 
          ------------------------------------------------------------
 
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                   (REGISTERED HOLDER(S) OF NOTES SIGN HERE)
 
               (IN ADDITION, COMPLETE SUBSTITUTE FORM W-9 BELOW)
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
                     (SIGNATURE(S) OF REGISTERED HOLDER(S))
 
     Must be signed by registered holder(s) exactly as name(s) appear(s) on the
Notes or on a security position listing as the owner of the Notes or by
person(s) authorized to become registered holder(s) by properly completed bond
powers transmitted herewith. If signature is by attorney-in-fact, trustee,
executor, administrator, guardian, officer of a corporation or other person
acting in a fiduciary capacity, please provide the following information.
(Please print or type):
 
Name and Capacity (full title):
                        --------------------------------------------------------
 
Address (including zip code):
                       ---------------------------------------------------------
 
Area Code and Telephone Number:
                           -----------------------------------------------------
 
Taxpayer Identification or Social Security No.:
                                   ---------------------------------------------
 
Dated:
- ------------------------------------
 
                              MEDALLION GUARANTEE
                       (IF REQUIRED -- SEE INSTRUCTION 4)
 
Authorized Signature:
                ----------------------------------------------------------------
              (SIGNATURE OF REPRESENTATIVE OF MEDALLION GUARANTOR)
 
Name and Title:
             -------------------------------------------------------------------
 
Name of Plan:
           ---------------------------------------------------------------------
 
Area Code and Telephone Number:
                           -----------------------------------------------------
                             (PLEASE PRINT OR TYPE)
 
Dated:
- ------------------------------------
 
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- ---------------------------------------------------------------------------------------------------------------------------
                                          PAYOR'S NAME: THE CHASE MANHATTAN BANK
- ---------------------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------------------
                                                                           
          SUBSTITUTE             PART I -- Please provide your TIN in the box at
           FORM W-9              right and certify by signing and dating below.  ------------------------------------------
                                                                                  Social Security Number
                                                                                  or
                                                                                 ------------------------------------------
                                                                                  Employer Identification Number
                                                                                  (If awaiting TIN write "Applied For")
                                -------------------------------------------------------------------------------------------
  DEPARTMENT OF THE TREASURY     PART II -- For Payees exempt from backup withholding, see the enclosed Guidelines for
   INTERNAL REVENUE SERVICE      Certification of Taxpayer Identification Number on Substitute Form W-9 and complete as
                                 instructed therein.
                                -------------------------------------------------------------------------------------------
 
                                 CERTIFICATION -- Under penalties of perjury, I certify that:
                                 (1) The number shown on this form is my correct Taxpayer Identification Number (or a
                                     Taxpayer Identification Number has not been issued to me) and either (a) I have mailed
      PAYER'S REQUEST FOR            or delivered an application to receive a Taxpayer Identification Number to the
    TAXPAYER IDENTIFICATION          appropriate Internal Revenue Service ("IRS") or Social Security Administration office
         NUMBER (TIN)                or (b) I intend to mail or deliver an application in the near future. I understand
                                     that if I do not provide a Taxpayer Identification Number within 60 days, 31% of all
                                     reportable payments made to me thereafter will be withheld until I provide a number,
                                     and
                                 (2) I am not subject to backup withholding either because (a) I am exempt from backup
                                     withholding, (b) I have not been notified by the IRS that I am subject to backup
                                     withholding as a result of a failure to report all interest or dividends, or (c) the
                                     IRS has notified me that I am no longer subject to backup withholding.
                                 CERTIFICATION INSTRUCTIONS -- You must cross out item (2) above if you have been notified
                                 by the IRS that you are subject to backup withholding because of underreporting interest
                                 or dividends on your tax return. However, if after being notified by the IRS that you were
                                 subject to backup withholding you received another notification from the IRS that you are
                                 no longer subject to backup withholding, do not cross out item (2). (Also see instructions
                                 in the enclosed Guidelines.)
                                 Signature -----------------------------------------------   Date-------------------, 1998
- ---------------------------------------------------------------------------------------------------------------------------

 
NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
      OF 31% OF ANY PAYMENTS MADE TO YOU PURSUANT TO THE OFFER. PLEASE REVIEW
      THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
      NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
 
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   8
 
                                  INSTRUCTIONS
 
                         FORMING PART OF THE TERMS AND
                        CONDITIONS OF THE EXCHANGE OFFER
 
     1. Delivery of this Letter of Transmittal and Certificates.  All physically
delivered Notes or confirmations of any book-entry transfer to the Exchange
Agent's account at a book-entry transfer facility of Notes tendered by
book-entry transfer, as well as a properly completed and duly executed copy of
this Letter of Transmittal or facsimile thereof, and any other documents
required by this Letter of Transmittal, must be received by the Exchange Agent
at the address set forth herein on or prior to the Expiration Date (as defined
in the Prospectus). The method of delivery of this Letter of Transmittal, the
Notes and any other required documents is at the election and risk of the
Holder, and except as otherwise provided below, the delivery will be deemed made
only when actually received by the Exchange Agent. If such delivery is by mail,
it is suggested that registered mail with return receipt requested, properly
insured, be used.
 
     No alternative, conditional, irregular or contingent tenders will be
accepted. All tendering Holders, by execution of this Letter of Transmittal (or
facsimile thereof), shall waive any right to receive notice of the acceptance of
the Notes for exchange.
 
     Delivery to an address other than as set forth herein, or instructions via
a facsimile number other than the ones set forth herein, will not constitute a
valid delivery.
 
     2. Guaranteed Delivery Procedures.  Holders who wish to tender their Notes,
but whose Notes are not immediately available and thus cannot deliver their
Notes, the Letter of Transmittal or any other required documents to the Exchange
Agent (or comply with the procedures for book-entry transfer) on or prior to the
Expiration Date, may effect a tender if:
 
          (a) the tender is made through a member firm of a registered national
     securities exchange or of the National Association of Securities Dealers,
     Inc., a commercial bank or trust company having an office or correspondent
     in the United States or an "eligible guarantor institution" within the
     meaning of Rule 17Ad-15 under the Exchange Act (an "Eligible Institution");
 
          (b) prior to the Expiration Date, the Exchange Agent receives from
     such Eligible Institution a properly completed and duly executed Notice of
     Guaranteed Delivery (by facsimile transmission, mail or hand delivery)
     setting forth the name and address of the Holder, the registration
     number(s) of such Notes and the principal amount of Notes tendered, stating
     that the tender is being made thereby and guaranteeing that, within three
     New York Stock Exchange trading days after the Expiration Date, the Letter
     of Transmittal (or facsimile thereof), together with the Notes (or a
     confirmation of book-entry transfer of such Notes into the Exchange Agent's
     account at the Depository) and any other documents required by the Letter
     of Transmittal, will be deposited by the Eligible Institution with the
     Exchange Agent; and
 
          (c) such properly completed and executed Letter of Transmittal (or
     facsimile thereof), as well as all tendered Notes in proper form for
     transfer (or a confirmation of book-entry transfer of such Notes into the
     Exchange Agent's account at the Depository) and all other documents
     required by the Letter of Transmittal, are received by the Exchange Agent
     within three New York Stock Exchange trading days after the Expiration
     Date.
 
     Any Holder who wishes to tender Notes pursuant to the guaranteed delivery
procedures described above must ensure that the Exchange Agent receives the
Notice of Guaranteed Delivery relating to such Notes prior to the Expiration
Date. Failure to complete the guaranteed delivery procedures outlined above will
not, of itself, affect the validity or effect a revocation of any Letter of
Transmittal form properly completed and executed by a Holder who attempted to
use the guaranteed delivery procedures.
 
     3. Partial Tenders; Withdrawals.  If less than the entire principal amount
of Notes evidenced by a submitted certificate is tendered, the tendering Holder
should fill in the principal amount tendered in the column entitled "Principal
Amount Tendered" of the box entitled "Description of Notes Tendered Hereby." A
newly issued Note for the principal amount of Notes submitted but not tendered
will be sent to such Holder as soon as practicable after the Expiration Date.
All Notes delivered to the Exchange Agent will be deemed to have been tendered
in full unless otherwise indicated.
 
     Notes tendered pursuant to the Exchange Offer may be withdrawn at any time
prior to the Expiration Date, after which tenders of Notes are irrevocable. To
be effective, a written telegraphic or facsimile transmission notice of
 
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withdrawal must be timely received by the Exchange Agent. Any such notice of
withdrawal must (i) specify the name of the person having deposited the Notes to
be withdrawn (the "Depositor"), (ii) identify the Notes to be withdrawn
(including the registration number(s) and principal amount of such Notes or, in
the case of Notes transferred by book-entry transfer, the name and number of the
account at the Depository to be credited), (iii) be signed by the Holder in the
same manner as the original signature on this Letter of Transmittal (including
any required Medallion Guarantees) or be accompanied by documents of transfer
sufficient to have the Trustee with respect to the Notes register the transfer
of such Notes into the name of the person withdrawing the tender and (iv)
specify the name in which any such Notes are to be registered, if different from
that of the Depositor. All questions as to the validity, form and eligibility
(including time of receipt) of such notices will be determined by the Company,
whose determination shall be final and binding on all parties. Any Notes so
withdrawn will be deemed not to have been validly tendered for purposes of the
Exchange Offer and no Exchange Notes will be issued with respect thereto unless
the Notes so withdrawn are validly retendered. Any Notes which have been
tendered but which are not accepted for exchange, will be returned to the Holder
thereof without cost to such Holder, or will be credited to an account
maintained with the Depository, as soon as practicable after withdrawal,
rejection of tender or termination of Exchange Offer.
 
     4. Signature on this Letter of Transmittal; Written Instruments and
Endorsements; Medallion Guarantee.  If this Letter of Transmittal is signed by
the registered Holder(s) of the Notes tendered hereby, the signature must
correspond with the name(s) as written on the face of the certificates without
alteration or enlargement or any change whatsoever. If this Letter of
Transmittal is signed by a participant in the Depository, the signature must
correspond with the name as it appears on the security position listing as the
owner of the Notes.
 
     If any of the Notes tendered hereby are owned of record by two or more
joint owners, all such owners must sign this Letter of Transmittal.
 
     If a number of Notes registered in different names is tendered, it will be
necessary to complete, sign and submit as many separate copies of this Letter of
Transmittal as there are different registrations of Notes.
 
     Signatures on this Letter of Transmittal or on a notice of withdrawal, as
the case may be, must be Medallion Guaranteed by an Eligible Institution unless
the Notes tendered hereby are tendered (i) by a registered Holder who has not
completed the box entitled "Special Registration Instructions" or "Special
Delivery Instructions" on the Letter of Transmittal or (ii) for the account of
an Eligible Institution.
 
     If this Letter of Transmittal is signed by the registered Holder or Holders
of Notes (which term, for the purposes described herein, shall include a
participant in the Depository whose name appears on a security listing as the
owner of the Notes) listed and tendered hereby, no endorsements of the tendered
Notes or separate written instruments of transfer or exchange are required. In
any other case, the registered Holder (or acting Holder) must either properly
endorse the Notes or transmit properly completed bond powers with this Letter of
Transmittal (in either case, executed exactly as the name(s) of the registered
Holder(s) appear(s) on the Notes, and, with respect to a participant in the
Depository whose name appears on a security position listing as the owner of
Notes, exactly as the name of the participant appears on such security position
listing), with the signature on the Notes or bond power guaranteed by an
Eligible Institution (except where the Notes are tendered for the account of an
Eligible Institution).
 
     If this Letter of Transmittal, any certificates or separate written
instruments of transfer or exchange are signed by trustees, executors,
administrators, guardians, attorneys-in-fact, officers of corporations or others
acting in a fiduciary or representative capacity, such persons should so
indicate when signing, and, unless waived by the Company, proper evidence
satisfactory to the Company of their authority to so act must be submitted.
 
     5. Special Registration and Delivery Instructions.  Tendering Holders
should indicate, in the applicable box, the name and address (or account at the
Depository) in which the Exchange Notes or substitute Notes for principal
amounts not tendered or not accepted for exchange are to be issued (or
deposited), if different from the names and addresses or accounts of the person
signing this Letter of Transmittal. In the case of issuance in a different name,
the employer identification number or social security number of the person named
must also be indicated and the tendering Holder should complete the applicable
box.
 
     If no instructions are given, the Exchange Notes (and any Notes not
tendered or not accepted) will be issued in the name of and sent to the acting
Holder of the Notes or deposited at such Holder's account at the Depository.
 
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     6. Transfer Taxes.  The Company shall pay all transfer taxes, if any,
applicable to the transfer and exchange of Notes to it or its order pursuant to
the Exchange Offer. If a transfer tax is imposed for any other reason other than
the transfer and exchange of Notes to the Company or its order pursuant to the
Exchange Offer, the amount of any such transfer taxes (whether imposed on the
registered Holder or any other person) will be payable by the tendering Holder.
If satisfactory evidence of payment of such taxes or exception therefrom is not
submitted herewith, the amount of such transfer taxes will be collected from the
tendering Holder by the Exchange Agent.
 
     Except as provided in this Instruction 6, it will not be necessary for
transfer stamps to be affixed to the Notes listed in this Letter of Transmittal.
 
     7. Waiver of Conditions.  The Company reserves the right, in its reasonable
judgment, to waive, in whole or in part, any of the conditions to the Exchange
Offer set forth in the Prospectus.
 
     8. Mutilated, Lost, Stolen or Destroyed Notes.  Any Holder whose Notes have
been mutilated, lost, stolen or destroyed should contact the Exchange Agent at
the address indicated above for further instructions.
 
     9. Requests for Assistance or Additional Copies.  Questions relating to the
procedure for tendering as well as requests for additional copies of the
Prospectus and this Letter of Transmittal, may be directed to the Exchange Agent
at the address and telephone number set forth above. In addition, all questions
relating to the Exchange Offer, as well as requests for assistance or additional
copies of the Prospectus and this Letter of Transmittal, may be directed to
Consumers Energy Company, 212 West Michigan Avenue, Jackson, Michigan 40201,
Attention: Chief Financial Officer, telephone: (517) 788-0550.
 
     10. Validity and Form.  All questions as to the validity, form, eligibility
(including time of receipt), acceptance of tendered Notes and withdrawal of
tendered Notes will be determined by the Company in its sole discretion, which
determination will be final and binding. The Company reserves the absolute right
to reject any and all Notes not properly tendered or any Notes the Company's
acceptance of which would, in the opinion of counsel for the Company, be
unlawful. The Company also reserves the right, in its reasonable judgment, to
waive any defects, irregularities or conditions of tender as to particular
Notes. The Company's interpretation of the terms and conditions of the Exchange
Offer (including the instructions in this Letter of Transmittal) will be final
and binding on all parties. Unless waived, any defects or irregularities in
connection with tenders of Notes must be cured within such time as the Company
shall determine. Although the Company intends to notify Holders of defects or
irregularities with respect to tenders of Notes, neither the Company, the
Exchange Agent nor any other person shall incur any liability for failure to
give such notification. Tenders of Notes will not be deemed to have been made
until such defects or irregularities have been cured or waived. Any Notes
received by the Exchange Agent that are not properly tendered and as to which
the defects or irregularities have not been cured or waived will be returned by
the Exchange Agent to the tendering Holder as soon as practicable following the
Expiration Date.
 
                           IMPORTANT TAX INFORMATION
 
     Under federal income tax law, a Holder tendering Notes is required to
provide the Exchange Agent with such Holder's correct TIN on Substitute Form W-9
above. If such Holder is an individual, the TIN is the Holder's social security
number. The Certificate of Awaiting Taxpayer Identification Number should be
completed if the tendering Holder has not been issued a TIN and has applied for
a number or intends to apply for a number in the near future. If the Exchange
Agent is not provided with the correct TIN, the Holder may be subject to a $50
penalty imposed by the Internal Revenue Service. In addition, payments that are
made to such Holder with respect to tendered Notes may be subject to backup
withholding of 31%.
 
     Certain Holders (including, among others, all domestic corporations and
certain foreign individuals and foreign entities) are not subject to these
backup withholding and reporting requirements. In order for a foreign individual
to qualify as an exempt recipient, such individual must submit a statement,
signed under penalties of perjury, attesting to such individual's exempt status.
Forms of such statements can be obtained from the Depositary. See the enclosed
Guidelines for Certification of Taxpayer Identification Number on Substitute
Form W-9 for additional instructions.
 
     If backup withholding applies, the Exchange Agent is required to withhold
31% of any amounts otherwise payable to the Holder. Backup withholding is not an
additional tax. Rather, the tax liability of persons subject to backup
withholding
 
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will be reduced by the amount of tax withheld. If withholding results in an
overpayment of taxes, a refund may be obtained from the Internal Revenue
Service.
 
PURPOSE OF SUBSTITUTE FORM W-9
 
     To prevent backup withholding on payments that are made to a Holder with
respect to Notes tendered for exchange, the Holder is required to notify the
Exchange Agent of his or her correct TIN by completing the form herein
certifying that the TIN provided on Substitute Form W-9 is correct (or that such
Holder is awaiting a TIN) and that (i) each Holder is exempt, (ii) such Holder
has not been notified by the Internal Revenue Service that he or she is subject
to backup withholding as a result of failure to report all interest or dividends
or (iii) the Internal Revenue Service has notified such Holder that he or she is
no longer subject to backup withholding.
 
WHAT NUMBER TO GIVE THE EXCHANGE AGENT
 
     Each Holder is required to give the Exchange Agent the social security
number or employer identification number of the record Holder(s) of the Notes.
If Notes are in more than one name or are not in the name of the actual Holder,
consult the enclosed Guidelines for Certification of Taxpayer Identification
Number on Substitute Form W-9 for additional guidance on which number to report.
If the tendering Holder has not been issued a TIN and has applied for a number
or intends to apply for a number in the near future, the stockholder should
write "Applied For" in the space provided for in the TIN in Part I, and sign and
date the Substitute Form W-9. If "Applied For" is written in Part I and the
Depositary is not provided with a TIN within 60 days, the Depositary will
withhold 31% of all payments of the purchase price to such stockholder until a
TIN is provided to the Depositary.
 
     IMPORTANT: THIS LETTER OF TRANSMITTAL OR A FACSIMILE THEREOF (TOGETHER WITH
NOTES OR CONFIRMATION OF BOOK-ENTRY TRANSFER AND ALL OTHER REQUIRED DOCUMENTS)
OR A NOTICE OF GUARANTEED DELIVERY MUST BE RECEIVED BY THE EXCHANGE AGENT ON OR
PRIOR TO THE EXPIRATION DATE.
 
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