FuelCell Energy

FuelCell Energy

FuelCell Energy, Inc.

Danbury, Connecticut, United States

HydrogenBiogasOther
Profile last updated: April 26, 2026

About

FuelCell Energy is a renewable energy company headquartered in Danbury, United States specializing in Hydrogen, Biogas, Other.

FuelCell Energy is a U.S. clean technology and manufacturing company that designs and builds carbonate and solid oxide fuel cell systems. Its platforms provide baseload and combined heat and power, biogas-fueled generation, carbon capture, hydrogen production via solid oxide electrolysis, and microgrid and data center power, with support through monitoring, maintenance and service.

Headquarters

Danbury, United States

Focus areas

fuel cellsbiogashydrogenelectrolysiscarbon capturecombined heat and powermicrogridsdata centersTri-genbaseload power

Products & services

Business models

B2BIPP

Value chain

ManufacturingDevelopmentEngineeringConstructionO&M

Locations

Headquarters

Great Pasture Road 3, 06810, Danbury, Connecticut, United States

Operating locations (4)

  • Technology Park Drive 539, Torrington, Connecticut, United States
  • 52 Street SE 4852, Calgary, Alberta, Canada
  • Ludwig-Bölkow-Allee 40C, Taufkirchen, Germany
  • Hyoseong-ro 81, Pohang, South Korea

Projects

6

Yaphank Fuel Cell System

OperationalFuel cell power plant

7.4 MW fuel cell installation on a former landfill supplying baseload power to the grid on Long Island.

7.4 MW capacityBrookhaven, United States

Derby Fuel Cell System

OperationalFuel cell power plant

14 MW fuel cell system with 10 modules delivering Class I renewable energy under 20-year agreements.

14 MW capacityDerby, United StatesClient: Eversource and United Illuminating

Bridgeport Fuel Cell System

OperationalFuel cell power plant

15 MW fuel cell site on a reclaimed brownfield, using 3000 systems and an Organic Rankine Cycle turbine under a 15-year PPA.

15 MW capacityBridgeport, United States

Noeul Green Energy Fuel Cell System

OperationalCarbonate fuel cell power plant

Utility-scale carbonate fuel cell system providing baseload power and useful heat for the regional energy network.

20 MW capacitySouth KoreaClient: Noeul Green Energy

Korean Southern Power Company Fuel Cell System

OperationalFuel cell power plant

Utility-scale fuel cell system providing baseload power and heat for district energy applications.

20 MW capacitySouth KoreaClient: Korean Southern Power Company

Gyeonggi Green Energy Fuel Cell System

OperationalCarbonate fuel cell power plant

Upgrade of a 42-module carbonate fuel cell power system at the Hwaseong Baran Industrial Complex, under a seven-year service agreement.

58.8 MW capacityHwaseong-si, South KoreaClient: Gyeonggi Green Energy

Credentials & affiliations

Certifications

CARB certification

Issued by: California Air Resources Board

Partnerships

Noeul Green Energy, Korean Southern Power Company, Gyeonggi Green Energy, U.S. Department of Energy Idaho National Laboratory

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