Exhibit 23.1

We consent to the incorporation by reference in the registration statements on Form S-8 (No. 333-181021, No. 333-177045, No. 333-166164 and No. 333-140168) and on Form S‑3 (No. 333-185221, No. 333-164412, No. 333-166565, No. 333-164410 and No. 333-164411) of FuelCell Energy, Inc. of our report dated January 14, 2013, with respect to the consolidated balance sheets of FuelCell Energy, Inc. and subsidiaries as of October 31, 2012 and 2011 and the related consolidated statements of operations, changes in equity (deficit), and cash flows for each of the years in the three-year period ended October 31, 2012 and the effectiveness of internal control over financial reporting as of October 31, 2012, which report appears in the October 31, 2012 annual report on Form 10-K of FuelCell Energy, Inc.