<PAGE>  

                                 EXHIBIT C

         An organizational chart showing the relationship of each EWG or
foreign utility company to associate companies in the holding company
system.


                    CENTRAL TERMICA SAN NICOLAS, S.A.:

CMS Energy Corporation
                 *
                 *
                 *
CMS Enterprises Company
                 *
                 *
                 *
CMS Generation Co.
                 *
                 *
                 * .1%
CMS Generation San Nicolas Company
                                 *
                                 *
                                 * .1%
                         Inversora de San Nicolas, S.A.
                                 *
                                 *
                                 * 88%
                         Central Termica San Nicolas, S.A.

CMS Generation San Nicolas Company, owned .1% by CMS Generation Co., owns
 .1% of Inversora de San Nicolas, which in turn owns 88% of Central Termica
San Nicolas, S.A., the EWG.

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<PAGE>  2

         An organizational chart showing the relationship of each EWG or
foreign utility company to associate companies in the holding company
system.

                      HIDROELECTRICA EL CHOCON, S.A.:

         CMS Energy Corporation
                         *
                         *
                         *
         CMS Enterprises Company
                         *
                         *
                         *
***      CMS Generation Co.
*                        *
*                        *
*                        * (99%)
*   CMS Generation, S.A.
*                        *
*                        *
*                        * 25%
*                Hidroinvest, S.A.
*                        *
*                        *
* 2.48%          * 59%
*************** Hidroelectrica El Chocon, S.A.


CMS Generation Co. directly owns 2.48% of Hidroelectrica El Chocon, S.A. 
CMS Generation, S.A., owned 99% by CMS Generation Co., owns 25% of
Hidroinvest which in turn owns 59% of Hidroelectrica El Chocon, S.A., the
EWG.

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<PAGE>  3

         An organizational chart showing the relationship of each EWG or
foreign utility company to associate companies in the holding company
system.


                        LAKEWOOD COGENERATION, L.P.

                                 CMS Energy Corporation
                                         *
                                         *
                                         *
                                 CMS Enterprises Company
                                         *
                                         *
                                         *
                                 CMS Generation Co.
                                         *
                                         *
                                         *
              --  HYDRA-CO Enterprises, Inc.
Operating &   |       *                   *
Maintenance   |       *                   *
Agreement     |       *                   *
              |   HCE-Lakewood, Inc.      *
              |               *           *
              |               *           *
              |               *  1%       * 44%
              -------------  Lakewood Cogeneration, L.P.


HYDRA-CO Enterprises, Inc., the wholly owned subsidiary of CMS Generation
Co., owns 100% of HCE-Lakewood, which in turn owns 1% of Lakewood
Cogeneration, L.P., the EWG.  Additionally, HYDRA-CO Enterprises, Inc.,
directly  owns 44% of Lakewood Cogeneration, L.P., the EWG.

HYDRA-CO Enterprises, Inc., is also the operator of Lakewood Cogeneration,
L.P., the EWG.
<PAGE>
<PAGE>  4

       An organizational chart showing the relationship of each EWG or
foreign utility company to associate companies in the holding company
system.


                           TOLEDO POWER COMPANY

                          CMS Energy Corporation
                                   *
                                   *
                                   *
                          CMS Enterprises Company
                                   *
                                   *
                                   *
                          CMS Generation Co.
                          *            *
                          *            *
                          *            *
CMS Generation Investment Co. I        CMS Generation Investment Co. II
                     *      * 99%       * 1%      *
                     *        *       *           *
                     *          *   *             *
                     *            *               *
                     * 99%      *   *             * 1%
    CMS Generation Cebu Limited       CMS Generation Cebu Operating
      Duration Company                   Limited Duration Company
                     *               |
                     *               | Operator
                     * 32.5%         |
                     Toledo Power Company


CMS Generation Cebu Limited Duration Company, owned 99% by CMS Generation
Investment Co. I and 1% by CMS Generation Investment Co. II, owns 32.5% of
Toledo Power Company, the EWG.

CMS Generation Cebu Operating Limited Duration Company is the operator of
Toledo Power Company, the EWG.

<PAGE>
<PAGE>  5

       An organizational chart showing the relationship of each EWG or
foreign utility company to associate companies in the holding company
system


                     CENTRALES TERMICAS MENDOZA, S.A.

                              CMS Energy Corporation
                                       *
                                       *
                                       *
                              CMS Enterprises Company
                                       *
                                       *
                                       *
                                   CMS Generation Co.
                                   *            *
                                   * 99%        * 99%
                  CMS Operating, S.A.           CMS Ensenada, S.A.
                      |       *                     *
                      |       *                     *
                      |       * 99%                 *  1%
       Operating &    |      Cuyana de Inversiones
       Maintenance    |                *
       Agreement      |                *
                      |                * 80.55%
                      | Centrales Termicas Mendoza, S.A.


CMS Operating, S.A., owned 99% by CMS Generation Co., owns 99% of Cuyana
de Inversiones.  CMS Ensenada, S.A., owned 99% by CMS Generation Co., owns
1% of Cuyana de Inversiones.  Cuyana de Inversiones owns 80.55% of
Centrales Termicas Mendoza, S.A., the EWG.

CMS Operating, S.A., is also the operator of Centrales Termicas Mendoza,
S.A., the EWG.

<PAGE>