Ecological and Economic Evaluation of Hydrogen Production by Different Water Electrolysis Technologies
Nils Tenhumberg, Karsten Büker
Abstract
Abstract The economic and ecological production of green hydrogen by water electrolysis is one of the major challenges within Carbon2Chem® and other power‐to‐X projects. This paper presents an evaluation of the different water electrolysis technologies with respect to their specific energy demand, carbon footprint and the forecast production costs in 2030. From a current perspective alkaline water electrolysis is evaluated as the most favorable technology for the cost‐effective production of low‐carbon hydrogen with fluctuating renewables.
Topics & Concepts
Hydrogen productionElectrolysis of waterElectrolysisPower to gasRenewable energyProduction (economics)Environmental scienceAlkaline water electrolysisCarbon footprintEnvironmental engineeringNatural resource economicsHydrogenEnvironmental economicsWaste managementGreenhouse gasEcologyEngineeringChemistryEconomicsElectrodeOrganic chemistryBiologyMacroeconomicsPhysical chemistryElectrolyteHybrid Renewable Energy SystemsHydrogen Storage and MaterialsEnergy and Environment Impacts