Exhibit 31

                      CERTIFICATION OF LAURA L. MOUNTCASTLE

I, Laura L. Mountcastle, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Consumers Funding
      LLC;

2.    To the best of my knowledge, this quarterly report does not contain any
      untrue statement of a material fact or omit to state a material fact
      necessary to make the statements made, in light of the circumstances under
      which such statements were made, not misleading with respect to the period
      covered by this quarterly report;

3.    To the best of my knowledge, the financial statements included in this
      quarterly report provide the financial information required to be provided
      to the trustee under the governing documents of Consumers Funding LLC; and

4.    Consumers Energy, as Servicer under the Securitization bonds, has complied
      with its servicing obligations and minimum servicing standards.

Date: August 2, 2005                   By /s/ Laura L. Mountcastle
                                           -------------------------------------
                                           Laura L. Mountcastle
                                           President, Chief Executive Officer,
                                           Chief Financial Officer and
                                           Treasurer