FCEL - FuelCell Energy Inc. 2021 Q4 - Results - Earnings Call Presentation December, 29 2021 10:19 AM FuelCell Energy Inc. The following slide deck was published by FuelCell Energy, Inc. in conjunction with their 2021 Q4 earnings call. For further details see: FuelCell Energy, Inc. 2021 Q4 - Results - Earnings Call Presentation