EXHIBIT 23(B)

                        CONSENT OF INDEPENDENT AUDITORS

     We consent to the incorporation by reference in the Registration Statements
(Form S-8 No. 333-32229 and No. 333-58686) pertaining to CMS Energy Corporation
Performance Incentive Stock Plan and Executive Stock Option Plan, respectively,
(Form S-8 No. 333-76347) pertaining to the Employee Savings and Incentive Plan
of Consumers Energy Company, in the Registration Statements (Form S-3 No.
333-51932, No. 333-52560, No. 333-27849, No. 333-37241, No. 333-74958 and No.
333-45556 and Form S-4 No. 33-60007 and No. 33-55805) of CMS Energy Corporation
and in the related Prospectuses of our report dated March 14, 2003, except for
Notes 7 and 19, as to which the date is March 31, 2003, with respect to the
consolidated financial statements and schedule of CMS Energy Corporation and
subsidiaries included in the Annual Report (Form 10-K) for the year ended
December 31, 2002.

                                          /s/ Ernst & Young LLP

Detroit, Michigan
March 31, 2003