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FuelCell Energy 3 Great Pasture Road Danbury, CT 06810   www.fuelcellenergy.com  

March 6, 2025

Via EDGAR

U.S. Securities and Exchange Commission

Division of Corporation Finance

100 F. Street N.E.

Washington, D.C. 20549

Attention:		Ms. Erin Donahue
		Ms. Erin Purnell

	Re:	Acceleration of Effective Date
		FuelCell Energy, Inc. Registration Statement on Form S-3 (File No. 333-274971) Post-Effective Amendment No. 2 to Registration Statement on Form S-3 Filed December 27, 2024 Post-Effective Amendment No. 3 to Registration Statement on Form S-3 Filed March 5, 2025

Ladies and Gentlemen:

Pursuant to Rule 461 under the Securities Act of 1933, as amended (the “Securities Act”), FuelCell Energy, Inc. (the “Company”) hereby requests that the effective date of the Registration Statement on Form S-3 (File. No. 333-274971) (as amended, the “Registration Statement”) be accelerated so that the Registration Statement becomes effective under the Securities Act at 4:30 P.M. Eastern Time on March 10, 2025 or as soon as practicable thereafter.

The Company respectfully requests that you notify Ms. Megan A. Odroniec of Foley & Lardner LLP of such effectiveness by a telephone call to (813) 225-4117.

	Sincerely,
	FUELCELL ENERGY, INC.
	By:	/s/ Michael S. Bishop
	Name:	Michael S. Bishop
	Title:	Chief Financial Officer and Treasurer

	cc:	Jason Few, Chief Executive Officer and President
		Joshua Dolger, General Counsel and Corporate Secretary