QuickLinks -- Click here to rapidly navigate through this document

Exhibit 32

STATEMENT PURSUANT TO 18 U.S.C. SECTION 1350,
AS ENACTED BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q for the quarter ended March 31, 2011 (the "Quarterly Report") of Midwest Generation, LLC (the "Company"), and pursuant to 18 U.S.C. Section 1350, as enacted by Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned certifies, to the best of his or her knowledge, that:

1.: The Quarterly Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and
2.: The information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: May 2, 2011


		/s/ Douglas R. McFarlan Douglas R. McFarlan Manager and President Midwest Generation, LLC
		/s/ Maria Rigatti Maria Rigatti Manager and Vice President Midwest Generation, LLC

This statement accompanies the Quarterly Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

QuickLinks

Exhibit 32

STATEMENT PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

MIDWEST GENERATION LLC 10-Q