v3.26.1
Consolidated Statements of Operations and Comprehensive Loss - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Revenues:        
Total revenues $ 35,589 $ 37,406 $ 66,120 $ 56,403
Costs of revenues:        
Total costs of revenues 48,518 46,844 84,906 71,045
Gross loss (12,929) (9,438) (18,786) (14,642)
Operating expenses:        
Administrative and selling expenses 14,708 16,470 28,178 31,500
Research and development expenses 7,709 9,896 14,672 20,977
Restructuring expense   6   1,542
Impairment expense 42,567   42,567  
Total costs and expenses 64,984 26,372 85,417 54,019
Loss from operations (77,913) (35,810) (104,203) (68,661)
Interest expense (2,859) (2,548) (5,617) (5,155)
Interest income 2,488 1,825 5,015 4,213
Other income (expense), net 605 (1,132) 1,075 (448)
Loss before provision for income taxes (77,679) (37,665) (103,730) (70,051)
Benefit from (provision for) income taxes 50 (84) 50 (84)
Net loss (77,629) (37,749) (103,680) (70,135)
Net income attributable to noncontrolling interests 278 300 (2,913) (3,760)
Net loss attributable to FuelCell Energy, Inc. (77,907) (38,049) (100,767) (66,375)
Series B preferred stock dividends (800) (800) (1,600) (1,600)
Net loss attributable to common stockholders $ (78,707) $ (38,849) $ (102,367) $ (67,975)
Loss per share basic and diluted:        
Net loss per share attributable to common stockholders, basic (in dollars per share) $ (1.45) $ (1.79) $ (2) $ (3.22)
Net loss per share attributable to common stockholders, diluted (in dollars per share) $ (1.45) $ (1.79) $ (2) $ (3.22)
Basic weighted average shares outstanding (in shares) 54,224,428 21,740,193 51,165,339 21,110,664
Diluted weighted average shares outstanding (in shares) 54,224,428 21,740,193 51,165,339 21,110,664
Net loss $ (77,629) $ (37,749) $ (103,680) $ (70,135)
Other comprehensive loss:        
Foreign currency translation adjustments (41) 286 (115) 54
Total comprehensive loss (77,670) (37,463) (103,795) (70,081)
Comprehensive loss attributable to noncontrolling interests 278 300 (2,913) (3,760)
Comprehensive loss attributable to FuelCell Energy, Inc. (77,948) (37,763) (100,882) (66,321)
Product        
Revenues:        
Total revenues 18,018 13,027 30,060 13,099
Costs of revenues:        
Total costs of revenues 20,282 16,261 36,677 19,297
Service        
Revenues:        
Total revenues 4,175 8,144 7,364 9,992
Costs of revenues:        
Total costs of revenues 3,489 9,067 6,311 10,735
Generation        
Revenues:        
Total revenues 8,681 12,124 19,669 23,470
Costs of revenues:        
Total costs of revenues 22,055 18,411 36,147 33,705
Advanced Technologies        
Revenues:        
Total revenues 4,715 4,111 9,027 9,842
Costs of revenues:        
Total costs of revenues $ 2,692 $ 3,105 $ 5,771 $ 7,308