FuelCell Energy

What FuelCell Energy does

FuelCell Energy is a U.S.-based clean technology and manufacturing company that designs, produces, and services molten carbonate fuel cell (MCFC) power systems. Founded in 1969 as Energy Research Corporation and rebranded in 1999, the company has been listed on NASDAQ under FCEL since 1992. Its proprietary carbonate platform generates electricity, heat, hydrogen, and carbon capture outputs from a single fuel input, achieving 50%+ electrical efficiency and up to 80% combined heat-and-power efficiency. Core products include the modular 1.25 MW, 2.5 MW, and 12.5 MW FuelCell Energy Block systems (commercialized under SureSource 1500 and 3000 brands), supported by three platform extensions: Carbon Capture (capturing CO2 from external industrial sources while generating power), Solid Oxide Electrolysis (SOEC, approximately 90% electrical efficiency for hydrogen production), and Tri-generation (simultaneous electricity, heat, and hydrogen). The company has deployed 687 fuel cell modules globally since 2003 and generated 18.4 million MWh cumulative output.

The company's revenue model combines hardware sales (fuel cell power plants), recurring service revenue through long-term service agreements (LTSAs), project-financed power purchase agreements (PPAs) where FuelCell owns and operates the asset, and structured project debt financing. Customer base spans hyperscale and colocation data center operators (now representing approximately 89% of the 4 GW pipeline), utilities and independent power producers, industrial facilities (Pfizer, Toyota, Pepperidge Farm, ExxonMobil), healthcare (Hartford Hospital), and government institutions. Geographically, FuelCell operates from Danbury, Connecticut (headquarters), Torrington, Connecticut (manufacturing, currently expanding from 100 MW to 350-500 MW annual capacity), Calgary (engineering), Taufkirchen, Germany (European sales), and Pohang, South Korea (Asian service and sales). South Korea represents a meaningful international market via the 59.4 MW Gyeonggi Green Energy project, the world's largest fuel cell park.

The business has pivoted sharply toward AI data center power demand, with the standardized 12.5 MW power block launched in March 2026 specifically targeting behind-the-meter data center deployment to bypass multi-year grid interconnection queues. Strategic capital partnerships with SDCL, Fit Energy, Diversified Energy, TESIAC, and Inuverse aggregate more than 1.5 GW of committed supply exposure. Backlog stands at approximately $1.14 billion as of Q2 FY2026 with a 4 GW pipeline. The company has historically reported operating losses with negative gross profit and EBITDA, requiring recurring capital raises through at-the-market equity offerings and project debt to fund both ongoing operations and the multi-hundred-million-dollar manufacturing expansion.

Name

FuelCell Energy

Legal name

FuelCell Energy, Inc.

Website

https://fuelcellenergy.com

Company type

Public

Founded year

1969

Operating status

Operating

Headcount range

251–500 employees

Short description

FuelCell Energy designs, manufactures, and services proprietary molten carbonate fuel cell power systems (1.25 MW to 12.5 MW) for data centers, utilities, and industrial customers, with platform extensions in carbon capture, electrolysis, and tri-generation, headquartered in Danbury, Connecticut.

Ownership category

akta.pro rank

Product category

Fuel Cell Power Generation & Carbon Capture

NAICS

Turbine and Turbine Generator Set Units Manufacturing (333611), Electric Power Generation (22111), Electric Power Generation, Transmission and Distribution (2211)

SIC

Motors & Generators (3621), Engines & Turbines (3510), Cogeneration Services & Small Power Producers (4991), Electric Services (4911)

akta.pro primary industry

Engine Generator & Microgrid Power Plant EPC (Diesel/Gas Recip) (EUAEAAAJ)

akta.pro secondary industry

Microgrid EPC, Integration & Commissioning (Design-Build, Interconnection) (EUAFAJAI)

Keywords

• Molten carbonate fuel cells
• Clean baseload power
• Carbon capture technology
• Solid oxide electrolysis
• Tri-generation power systems

Headquarters

HQ city

Danbury

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Fuel Cell Power Plant Sales: Sale of complete fuel cell power plant systems including 1.25 MW, 2.5 MW, and 12.5 MW configurations. Customers include data centers, industrial facilities, utilities, and commercial buildings.
2. Long-Term Service Agreements (LTSA): Ongoing service, maintenance, monitoring, and support for installed fuel cell systems. Revenue recognized over the contract term with 24/7 monitoring and performance optimization.
3. Power Purchase Agreements (PPA): Company-owned and operated fuel cell plants selling electricity to customers under long-term agreements, providing recurring revenue and asset-based returns
4. Project Financing: Structured debt financing for specific project deployments, enabling capital-light growth while maintaining operational involvement

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

FuelCell Energy designs, manufactures, installs, services, and operates modular molten carbonate fuel cell (MCFC) power systems ranging from 1.25 MW to 12.5 MW for clean baseload electricity, combined heat and power, carbon capture, hydrogen production, and tri-generation. The company sells complete power plants, recurs service revenue via long-term service agreements, and operates company-owned assets under 20-year power purchase agreements for enterprise customers in data centers, utilities, industrial, healthcare, and government markets.

Product overview

FuelCell Energy is an American clean technology and manufacturing company providing large-scale, continuous power solutions and emissions management through its proprietary carbonate fuel cell technology platform. The company offers a modular product portfolio spanning from 1.25 MW to 12.5 MW power block systems (including the 1500 and 3000 fuel cell power plants at 1.25 MW and 2.5 MW respectively), with the 12.5 MW system designed specifically for data centers. Supporting the power generation core are three platform capabilities: Carbon Capture (the only known technology that captures carbon while producing power), Solid Oxide Electrolysis (high-efficiency hydrogen production), and Tri-generation (simultaneous electricity, heat, and hydrogen production). The company operates across three geographical segments: the United States, South Korea, and Europe.

Differentiator

Problem solved

Functional benefit

Brands

• SureSource: Brand name for FuelCell Energy's power plant solutions and fuel cell products
• SureSource 1500
• SureSource 3000
• FuelCell Energy Block
• Tri-generation
• Dedicated Power Partners (DPP)

Products and services

• 12.5 MW FuelCell Energy Block System A standardized modular power block system providing 12.5 MW of continuous clean baseload power for data centers and AI infrastructure, integrating five 2.5 MW systems to address grid constraints and enable faster deployment.
• 2.5 MW FuelCell Energy Block System A modular fuel cell system generating 2.5 MW of reliable, efficient, low-carbon distributed power. The fuel-flexible system operates on natural gas, biogas, and natural gas/hydrogen blends up to 40% hydrogen, with applications in CHP and distributed generation.
• 1.25 MW FuelCell Energy Block System A compact modular fuel cell system providing 1.25 MW of reliable, efficient, low-carbon distributed power generation for various on-site applications. Operates on natural gas, biogas, and hydrogen blends up to 40%.
• Carbon Capture Platform Proprietary technology that captures carbon from external industrial sources (such as oil sands, cement, and manufacturing emissions) while simultaneously producing power. Achieved over 90% CO2 capture efficiency in laboratory testing with ExxonMobil. The only known platform that captures carbon while generating power.
• Solid Oxide Electrolysis (SOEC) Platform High-efficiency solid oxide electrolysis platform for hydrogen production via water electrolysis, achieving approximately 90% electrical efficiency with the ability to utilize waste heat for improved efficiency. Tested at Idaho National Laboratory where FuelCell Energy became the largest electrolyzer tested at the site.
• Tri-generation Platform A platform that simultaneously produces electricity, heat, and hydrogen from a single fuel unit (natural gas or renewable biogas), enabling carbon-neutral or carbon-negative power generation. Deployed in Toyota Port of Long Beach 2.3 MW project supplying hydrogen to Mirai fuel cell vehicles.

Quantifiable outcome

• 50%+ electrical efficiency achieved with carbonate fuel cells (up from 47%)
• +5 more outcomes

Named customers8 records

Segments7 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Twelve partnerships are on record, tiered core, minor and major.

• Fit Energy USAcoreStrategic or Co-development Partner · 24 June 2026Binding supply agreement for up to 380 MW of on-site fuel cell generation to power data centers behind the meter. Initial phase includes 30 MW deposit with delivery to begin later in 2026. Fit Energy issued warrants to purchase up to 12 million common shares at $26.44 per share tied to deployment milestones.
• Cleveland-CliffsminorStrategic or Co-development Partner · 1 April 2026Research partnership for solid oxide electrolyzer technology to recycle steelmaking flue gas (CO2 and water) into carbon monoxide and hydrogen for iron reduction, achieving over 94% emissions reduction.
• InuverseminorStrategic or Co-development Partner · 1 March 2026Preliminary agreement for data center deployments combining up to 550 MW of fuel cell and Inuverse solutions.
• SDCL for Data CenterscoreStrategic or Co-development Partner · 1 March 2026Collaboration with SDCL for data center projects combining FuelCell technology with sustainable development financing.
• Sustainable Development Capital LLP (SDCL)coreStrategic or Co-development Partner · 1 January 2026Strategic partnership to deploy up to 450 MW of fuel-cell power systems at data centers and other facilities globally. Combines FuelCell Energy's technology with SDCL's financing expertise to support cleaner energy systems and meet new power architecture demands for AI and high-performance computing.
• ExxonMobilcoreStrategic or Co-development Partner · 1 January 2026Carbon capture pilot project at ExxonMobil's Rotterdam manufacturing complex, aiming to demonstrate over 90% CO2 capture efficiency under real industrial conditions. Enhanced carbonate fuel cell platform testing completed with laboratory results above 90% capture rate. Project milestone shipments expected in 2026.
• Diversified EnergymajorStrategic or Co-development Partner · 1 January 2026Partnership for up to 360 MW of fuel cell deployments across multiple U.S. states for data center power solutions.
• TESIACmajorStrategic or Co-development Partner · 1 January 2026Partnership for up to 360 MW of fuel cell deployments combining coal mine methane fuel source with fuel cell technology for data center power.
• CGN (China Guangdong Nuclear Power)coreStrategic or Co-development Partner · 1 January 2026Long-term service agreements for fuel cell projects in South Korea, including 42 fuel cell module deliveries adding 58.8 MW to Gyeonggi Green Energy complex.
• Idaho National LaboratorymajorStrategic or Co-development Partner · 1 January 2026Expanded solid oxide electrolysis testing at Idaho National Laboratory where FuelCell Energy became the largest electrolyzer tested at the site.
• Molten Carbonate Fuel Cell Market PlayersminorStrategic or Co-development Partner · 1 January 2026Market development and deployment partnerships across stationary power generation, grid modernization, and energy security applications.
• ToyotacoreStrategic or Co-development Partner · 1 January 2017Tri-generation project at Port of Long Beach deploying 2.3 MW system producing electricity, hydrogen, and water from renewable biogas. System supplies power to port grid, produces hydrogen for Toyota Mirai fuel cell vehicles, and generates water for the drought-impacted port area.

Scale indicators15 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Ballard Power Systems: Ballard Power Systems designs and manufactures PEM fuel cell products for stationary power, heavy-duty motive, and hydrogen applications. Comparable as a stationary fuel cell power generation competitor addressing data center backup and distributed generation markets.
• Plug Power: Plug Power is a PEM fuel cell and green hydrogen systems company overlapping with FCE in hydrogen production, fuel cell power generation, and industrial decarbonization applications. Both target large enterprise customers with multi-MW energy solutions.
• Capstone Green Energy: Capstone manufactures microturbines for distributed power generation, oil & gas, and commercial/industrial customers. Comparable as a competitor in on-site, low-emission distributed power generation competing for similar customer use cases.
• Bloom Energy: Bloom Energy manufactures solid oxide fuel cells targeting the same data center, utility, and industrial customers with comparable on-site power solutions. Both companies are pursuing the behind-the-meter AI infrastructure opportunity with standardized MW-class systems.
• Doosan Fuel Cell: Doosan Fuel Cell is a South Korea-based solid oxide fuel cell manufacturer competing directly with FCE in the Korean stationary fuel cell market, including the Gyeonggi Green Energy fuel cell park. Both target utility-scale distributed generation customers.

Broad incumbents

• Mitsubishi Power: Mitsubishi Power is a major OEM of gas turbines (CCGT/OCGT) and hydrogen-ready power generation systems for utilities and large industrial customers. Comparable as a broad incumbent offering large-scale clean power generation solutions including hydrogen.
• Caterpillar: Caterpillar is a global manufacturer of large gas and diesel generator sets for prime, standby, and continuous power applications. Comparable as a broad incumbent competing for data center backup power and industrial on-site generation customers.
• GE Vernova: GE Vernova is a global power generation equipment manufacturer with gas, steam, wind, and grid solutions serving utility and industrial customers. Comparable as a broad incumbent addressing data center power, utility-scale generation, and grid reliability.
• Cummins: Cummins is a large diversified power generation equipment manufacturer with broad portfolio including diesel and natural gas generators, fuel cells (acquired Hydrogenics), and power solutions. Comparable as a larger incumbent serving similar data center and industrial power markets with broader product range.

Emerging players

• NuScale Power: NuScale Power is developing small modular nuclear reactors targeting data center and industrial customers seeking clean baseload power. Comparable as an emerging alternative for hyperscaler power needs that compete with FCE's behind-the-meter strategy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/fuelcell-energy
• Xx.com/FuelCell_Energy
• Facebookfacebook.com/161503750546079

Revenue estimate

Valuation estimate

Number of profiles

Profiles20 records

Subsidiaries1 record

Funding overview

Funding rounds14 records

Investors11 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about FuelCell Energy