Exhibit 23.2

Consent of Independent Registered Public Accounting Firm

Lime Energy Co.
Elk Grove Village, Illinois

     We hereby consent to the incorporation by reference in the Registration Statement (Form S-8) of our report dated March 28, 2008, relating to the consolidated financial statements and schedule of Lime Energy Co. appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2007.

/s/ BDO Seidman, LLP  

BDO Seidman, LLP 

Chicago, Illinois
June 5, 2008