A fuel cell is an electrochemical energy conversion device. Fuel cells differ from batteries in that they are designed for continuous replenishment of the reactants consumed.
This is a partial list of companies currently producing commercially available fuel cell systems for use in residential, commercial, or industrial settings. Fuel cell systems from these manufacturers are currently being used to generate AC or DC electricity, heat, water, or any combination of the three. Company ProductsAFC EnergyHydrogen fuel cells Alpha System and Betha SystemAir LiquideHydrogen fuel cells and hydrogen filling centersApollo Energy SystemsAlkaline fuel cells Ballard Proton-exchange membrane (PEM) fuel cellsBloom EnergyBloom Energy Server "Bloom Box"Ceres PowerSolid-oxide fuel cells (SOFCs) and reversible solid oxide cells (rSOCs)CumminsHydrogen fuel cells, vehiclesDoosan Fuel Cell AmericaPureCell Model 400 and SOFCFuelCell EnergyMolten carbonate fuel cellsGenCellAlkaline fuel cells GenCell REXHorizonECOBOC-MR, Aerostack, HydromaxHydrogenicsHydrogen fuel cells and electrolysersHyundai MotorHydrogen fuel cell electric vehicles (FCEVs)Intelligent EnergyPEM fuel cells, FCM-800 and IE-SOAR seriesKyoceraSOFCs and systemsMitsubishi Heavy IndustriesSOFCs and hybrid SOFC and micro gas turbine MegamiePanasonicIntegration of hydrogen fuel cells and photovoltaic (PV) systems - Panasonic HXPlug Power Inc.GenDrive, GenSure, ProGenRobert Bosch GmbHPEMFC and SOFCSFC EnergyDirect methanol fuel cells and hydrogen fuel cellsToshibaEne-Farm, H2Rex
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