POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby
constitutes and appoints each of James E Brunner, Catherine M
Reynolds or Robert C. Shrosbree, or any of them signing
singly, and with full power of substitution, the undersigneds
true and lawful attorney in fact to:
(1) prepare, execute in the undersigned name and on the
undersigned behalf, and submit to the U.S. Securities and
Exchange Commission (the SEC) a Form ID, including
amendments thereto, and any other documents necessary or
appropriate to obtain codes and passwords enabling the
undersigned to make electronic filings with the SEC of reports
required by Section 16(a) of the Securities Exchange Act of 1934
or any rule or regulation of the SEC;
(2) execute, for and on behalf of the undersigned, in the
undersigneds capacity as a director of CMS Energy
Corporation and/or Consumers Energy Company (collectively, the
Company), Forms 3, 4, 5 and 144 in accordance with Section 16(a) of
the Securities Exchange Act of 1934 and the rules thereunder;
(3) do and perform any and all acts, for and on behalf of the
undersigned which may be necessary or desirable to complete
and execute any such Forms 3, 4, 5 and 144, complete and execute any
amendment or amendments thereto, and timely file such form
with the SEC and any stock exchange or similar authority; and
(4) take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney in fact,
may be of benefit to, in the best interest of, or legally required by,
the undersigned, it being understood that the documents
executed by such attorney in fact on behalf of the undersigned
pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney in fact may
approve in such attorney in facts discretion.
The undersigned hereby grants to each such attorney in fact full
power and authority to do and perform any and every act and
thing whatsoever requisite, necessary, or proper to be done in
the exercise of any of the rights and powers herein granted, as
fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney
in fact, or such attorney in facts substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney
and the rights and powers herein granted. The undersigned
acknowledges that the foregoing attorneys in fact, in serving in
such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigneds
responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.
This Power of Attorney shall remain in full force and effect until
the undersigned is no longer required to file Forms 3, 4, 5 and 144
with respect to the undersigneds holdings of and transactions in
securities issued by the Company, unless earlier revoked by the
undersigned in a signed writing delivered to the foregoing
attorneys in fact.
IN WITNESS WHEREOF, the undersigned has caused this
Power of Attorney to be executed as of this 23rd day of March,
2007.
/s/ Earl D. Holton