EXHIBIT (23)(f)



            Consent of Independent Registered Public Accounting Firm


We consent to the reference to our firm under the caption "Experts" in Amendment
No. 3 to the Registration Statement on Form S-3 (No. 333-51932) and the related
Prospectus of CMS Energy Corporation dated September 7, 2004 and to the
incorporation by reference therein of our report dated June 27, 2004 with
respect to the financial statements of Emirates CMS Power Company PJSC for the
year ended December 31, 2003 included in CMS Energy Corporation's Annual Report
(Form 10-K/A) for the year ended December 31, 2003 filed with the Securities and
Exchange Commission.


                                         /s/ Ernst & Young


Abu Dhabi, United Arab Emirates
September 2, 2004