X0306 4 2020-05-08 0 0000886128 FUELCELL ENERGY INC FCEL 0001408158 Few Jason 3 GREAT PASTURE ROAD DANBURY CT 06810 1 1 0 0 CEO Common Stock 5787 D Employee Restricted Stock Unit 0 2020-05-08 4 A 0 500000 0 A Common Stock 500000 500000 D Performance Share Units 0 2020-05-08 4 A 0 500000 0 A Common Stock 500000 500000 D Deferred Common Stock Units Common Stock 5347 5347 D RSUs will vest 100% on August 26, 2022, subject to the reporting person's continuous employment with the Company through the vesting date. Earned PSUs will vest on August 26, 2022 and the number earned, if any, will be based on the weighted-average price of the Company's common stock during the thirty (30) day calendar period ending on the vesting date compared to pre-established price goals. The vesting of the PSUs is also subject to the reporting person's continuous employment with the Company through the vesting date. Common Stock Units issued to the reporting person pursuant to the FuelCell Energy, Inc. Directors Deferred Compensation Plan. In accordance with elections made by the reporting person under the Directors Deferred Compensation Plan, the shares of common stock underlying the Common Stock Units are payable to the reporting person, on a one-for-one basis (i.e., one share of common stock for each Common Stock Unit), on the date following the FuelCell Energy 2020 Annual Meeting of Stockholders. /s/ Jacqueline Perez-Ares, as Power of Attorney 2020-05-12