THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO
RULE 901 9(d) OF REGULATION S-T


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)*


CMS Energy Corporation
(Name of Issuer)

Common Stock, Par Value $41.50 per share
(Title of Class of Securities)

125896308
(CUSIP Number)


(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which
this
Schedule is filed:
[X ]
Rule 13d-1(b)
[ ]
Rule 13d-1(c)
[ ]
Rule 13d-1(d)


CUSIP No. 125896308


1.
Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).

First Union Corporation
56-0898180


2.
Check the Appropriate Box if a Member of a Group (See
Instructions)

(a)

(b)


3.
SEC Use Only


4.
Citizenship or Place of Organization
North Carolina


Number of Shares Beneficially Owned by Each Reporting
Person With


5.
Sole Voting Power            200600

6.
Shared Voting Power          0

7.
Sole Dispositive Power       206630

8.
Shared Dispositive Power     800


9.
Aggregate Amount Beneficially Owned by Each Reporting Person
208430


10.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares
(See Instructions)
Not Applicable.


11.
Percent of Class Represented by Amount in Row (11)
2.87%

12.
Type of Reporting Person (See Instructions)
Parent Holding Company (HC)


Item 1.

(a)Name of Issuer
CMS Energy Corporation


(b) Address of Issuer's Principal Executive Offices
330 Tower Center Drive
Fairlane Plaza South, Suite 1100
Dearborn, MI  48126


Item 2.

(a) Name of Person Filing
 First Union Corporation


(b) Address of Principal Business Office or, if none, Residence
 One First Union Center
 Charlotte, North Carolina 28288-0137


(c) Citizenship
 North Carolina


(d) Title of Class of Securities
 Common Stock, Par Value $.01 per share


(e) CUSIP Number
 337358105


Item 3.
If this statement is filed pursuant to 240.13d-1(b) or 240.13d-
2(b) or
c), check whether the person filing is a:

(g)[X ] A parent holding company or control person in accordance
with
240.13d-1(b)(1)(ii)(G);

Item 4.
Ownership.

Provide the following information regarding the aggregate number
and
percentage of the class of securities of the issuer identified in
Item 1.

(a)
Amount beneficially owned: 208430.

(b)
Percent of class: 2.87%.

(c)
Number of shares as to which the person has:

(i)
Sole power to vote or to direct the vote 200600.


(ii)
Shared power to vote or to direct the vote 0.


(iii)
Sole power to dispose or to direct the disposition of 206630.


(iv)
Shared power to dispose or to direct the disposition of 800.




Item 5.
Ownership of Five Percent or Less of a Class


If this statement is being filed to report the fact that as of the
date
hereof the reporting person has ceased to be the beneficial owner
of
more than five percent of the class of securities, check the
following
[ ].


Item 6.
Ownership of More than Five Percent on Behalf of Another Person.
Not Applicable.



Item 8.
Identification and Classification of Members of the Group
Not Applicable.


Item 9.
Notice of Dissolution of Group
Not Applicable.

Item 10.
Certification

(a)
The following certification shall be included if the statement is
filed
pursuant to 240.13d-1(b):

By signing below I certify that, to the best of my knowledge and
belief, the
securities referred to above were acquired and are held in the
ordinary course
of business and were not acquired and are not held for the purpose
of or with
the effect of changing or influencing the control of the issuer of
the
securities and were not acquired and are not held in connection
with or as a
participant in any transaction having that purpose or effect.


SIGNATURE
After reasonable inquiry and to the best of my knowledge and
belief, I certify
that the information set forth in this statement is true, complete
and correct.

02/14/2001
Date

Signature

Karen F. Knudtsen, Vice President & Trust Officer
Name/Title