Why FuelCell Energy?

Types of Fuel Cells

There are four primary fuel cell technologies, including carbonate, solid oxide, phosphoric acid and polymer membrane (PEM). Each type is well-suited for specific applications including large or small scale applications and stationary or mobile applications, but there is not one fuel cell technology that is well suited for all the possible applications.

The commercial product line of FuelCell Energy utilizes carbonate technology and is well suited for megawatt-class applications. We are actively researching solid oxide fuel cell technology for smaller sub-megawatt applications as well as select mobile applications such as unmanned military drones.

  MW Class Sub-MW Class Micro CHP Mobile
Technology Carbonate (MCFC) Phosphoric Acid (PAFC) Solid Oxide (SOFC) PEM / SOFC Polymer Electrolyte Membrane (PEM)
System size range 300kW – 2.8MW 400kW up to 200 kW < 10 kW up to 100 kW
Typical Application Utilities, large universities, industrial – baseload Commercial buildings – baseload Commercial buildings – baseload Residential and small commercial Transportation
Fuel Natural gas, Biogas, others Natural gas Natural gas Natural gas Hydrogen
Advantages High efficiency, scalable, fuel flexible & CHP CHP High efficiency Load following & CHP Load following & low temperature
Electrical efficiency 43%-47% (higher w/ turbine or organic rankine cycle) 40% – 42% 50% – 60% 25% – 35% 25% – 35%
Combined Heat & Power (CHP) Steam, hot water, chilling & bottoming cycles Hot water, chilling Depends on technology used Suitable for facility heating No, which is an advantage for transportation