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                                                                    Exhibit 5(a)





                                 June 12, 1997


CMS Energy Corporation
Fairlane Plaza South
330 Town Center Drive
Suite 1100
Dearborn, MI 48126

Ladies and Gentlemen:

                 I am the Assistant General Counsel of CMS Energy Corporation,
a Michigan corporation (the "Company"), and have acted as such in connection
with the Registration Statement on Form S-3 (the "Registration Statement")
being filed by the Company with the Securities and Exchange Commission (the
"Commission") under the Securities Act of 1933, as amended (the "Securities
Act"), relating to the registration of not to exceed $300,000,000 of (i) CMS
Energy Common Stock, $.01 par value ("Common Stock"); (ii) Subordinated
Debentures of the Company ( "Debentures"); (iii) Preferred Securities of CMS
Energy Trust I; (iv) Preferred Securities of CMS Energy Trust II; (v) the
guarantee of the Preferred Securities by the Company ("Preferred Securities
Guarantee"); (vi) Stock Purchase Contracts of the Company; and (vii) Stock
Purchase Units of the Company.  (The offered securities, collectively, the
"Securities".)  The guarantee of the Preferred Securities is to be issued
pursuant to the Preferred Securities Guarantee Agreement (the "Preferred
Securities Guarantee") to be entered into among the Company and The Bank of New
York, as trustee (the "Guarantee Trustee").  The Debentures are to be issued
under an Indenture to be entered into between the Company and The Bank of New
York, as trustee (the "Indenture Trustee"), and one or more supplemental
indenture thereto (collectively, the "Indenture").  Capitalized terms not
otherwise defined herein have the respective meanings specified in the
Registration Statement.

         In rendering this opinion, I have examined and relied upon a copy of
the Registration Statement.  I have also examined, or have arranged for the
examination by an attorney or attorneys under my general supervision,
originals, or copies of originals certified to my satisfaction, of such
agreements, documents, certificates and other statements of governmental
officials and other instruments, and have examined such questions of law and
have satisfied myself as to such matters of fact, as I have considered relevant
and necessary as a basis for this opinion.  I have assumed the
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authenticity of all documents submitted to me as originals, the genuineness of
all signatures, the legal capacity of all natural persons and the conformity
with the original documents of any copies thereof submitted to me for
examination.

         Based on the foregoing, it is my opinion that:

  1.     The Company is duly incorporated and validly existing under the laws 
         of the State of Michigan.

  2.     The Company has corporate power and authority (i) to execute and 
         deliver the Preferred Securities Guarantee, the Stock Purchase 
         Agreement and the Indenture, and (ii) to authorize and sell the 
         Debentures pursuant to the Indenture and the Common Stock pursuant
         to the Stock Purchase Agreement.

  3.     The Preferred Securities Guarantee will be a legally issued and 
         binding obligation  of the Company (except to the extent 
         enforceability may be limited by applicable bankruptcy, insolvency,
         reorganization, moratorium, fraudulent transfer or other similar laws
         affecting the enforcement of creditors' rights generally and by the
         effect of general principles of equity, regardless of whether
         enforceability is considered in a proceeding in equity or at law) when
         (i) the Registration Statement, as finally amended (including any
         necessary post-effective amendments) shall have become effective under
         the Securities Act; (ii) the Preferred Securities Guarantee shall have
         been qualified under the Trust Indenture Act of 1939, as amended (the
         "Trust Indenture Act"), and duly executed and delivered by the Company
         and the Guarantee Trustee; (iii) the Preferred Securities shall have
         been legally issued, as contemplated by paragraph 4 below; and (iv)
         the Preferred Securities Guarantees shall have been duly executed and
         delivered as provided in the Preferred Securities Guarantee Agreement.

  4.     The Debentures will be legally issued and binding obligations of the 
         Company (except to the extent enforceability may be limited by 
         applicable bankruptcy, insolvency, reorganization, moratorium, 
         fraudulent transfer or other similar laws affecting the enforcement 
         of creditors' rights generally and by the effect of general 
         principles of equity, regardless of whether enforceability is
         considered in a proceeding in equity or at law) when (i) the 
         Registration Statement, as finally amended (including any necessary
         post-effective amendments) shall have become effective under the 
         Securities Act, and  the Indenture shall have been qualified under 
         the Trust Indenture Act, and duly executed and delivered by the 
         Company and the Indenture Trustee; (ii) an appropriate prospectus 
         supplement with respect to the particular Debentures then being sold 
         by the Company shall have been filed with the Commission pursuant to 
         Rule 424 under the Securities Act; (iii) the Company's Board of 
         Directors or duly authorized committee thereof shall have duly adopted
         final resolutions authorizing the issuance and sale of the Debentures,
         as contemplated by the Registration Statement
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         and the Indenture; and (iv) the supplemental indenture under which such
         Debentures are to be issued shall have been duly executed and 
         authenticated as provided in the Indenture and such resolutions, and 
         shall have been duly delivered to the purchasers thereof against 
         payment of the agreed consideration therefor.

  5.     The Stock Purchase Contracts and the Stock Purchase Units, when 
         issued and sold, will be legally issued and binding obligations
         of the Company (except to the extent enforceability may be limited by
         applicable bankruptcy, insolvency, reorganization, moratorium,
         fraudulent transfer or other similar laws affecting the enforcement of
         creditors' rights generally and by the effect of general principles of
         equity, regardless of whether enforceability is considered in a
         proceeding in equity or at law) when (i) the Registration Statement,
         as finally amended, (including any necessary post-effective
         amendments), shall have become effective under the Securities Act;
         (ii) an appropriate prospectus supplement with respect to the
         particular Stock Purchase Contracts and the Stock Purchase Units then
         being sold by the Company shall have been filed with the Commission
         pursuant to Rule 424 under the Securities Act; and (iii) and the Stock
         Purchase Contracts under which the Common Stock are to be purchased
         shall have been duly executed and delivered as provided in the Stock
         Purchase Contracts.

  6.     The Common Stock will be legally issued, fully paid and
         non-assessable when; (i) the Registration Statement, as finally
         amended, shall have become effective under the Securities Act; (ii)
         the Company's Board of Directors or a duly authorized committee
         thereof shall have duly adopted final resolutions authorizing the
         issuance and sale of the Common Stock, Preferred Securities or
         Debentures to be converted into Common Stock or Stock Purchase
         Contracts pursuant to which Common Stock may be purchased, as
         contemplated by the Registration Statement and prospectus supplement
         relating thereto; and (iii) upon delivery, purchase or conversion,
         as the case may be, certificates representing the Common Stock shall 
         have been duly executed, countersigned and registered and duly 
         delivered to the purchasers thereof against payment of the agreed 
         consideration therefor.

         For purposes of this opinion, I have assumed that there will
be no changes in the laws currently applicable to the Company and that such
laws will be the only laws applicable to the Company.

         I do not find it necessary for the purposes of this opinion to
cover, and accordingly I express no opinion as to, the application of the
securities or blue sky laws of the various states to the execution and delivery
of the Preferred Securities Guarantee or the sale of  the Securities.

         I am a member of the bar of the State of Michigan and I express no 
opinion as to the laws of any jurisdiction other than the State of Michigan 
and the federal law of the United States of America.  I note that the rights, 
duties and obligations of the Indenture Trustee under the Indenture
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are stated to be governed and construed in accordance with the laws of the
State of New York. However, for purposes of paragraph 4 above, I have assumed 
that the Indenture, as to the rights, duties and obligations of the Indenture 
Trustee, is stated to be governed by the laws of the State of Michigan.

         I hereby consent to the filing of this opinion as an exhibit to the 
Company's Registration Statement on Form S-3 relating to the Securities and to
all references to me included in or made a part of the Registration Statement.

                                        Very truly yours,

                                        /s/ Michael D. Van Hemert
                                        --------------------------
                                        Michael D. Van Hemert