The many greenhouse gas footprints of green hydrogen
Kiane de Kleijne, Heleen de Coninck, Rosalie van Zelm, Mark A. J. Huijbregts, Steef V. Hanssen
Abstract
Green hydrogen could contribute to climate change mitigation, but its greenhouse gas footprint varies with electricity source and allocation choices. Using life-cycle assessment we conclude that if electricity comes from additional renewable capacity, green hydrogen outperforms fossil-based hydrogen. In the short run, alternative uses of renewable electricity likely achieve greater emission reductions.
Topics & Concepts
Renewable energyGreenhouse gasElectricityEnvironmental scienceLife-cycle assessmentFossil fuelElectricity generationHydrogenGreenhouse effectClimate changeNatural resource economicsCarbon footprintClimate change mitigationGlobal warmingWaste managementProduction (economics)EconomicsEngineeringChemistryEcologyPower (physics)PhysicsBiologyQuantum mechanicsOrganic chemistryMacroeconomicsElectrical engineeringEnvironmental Impact and SustainabilityHybrid Renewable Energy SystemsElectric Vehicles and Infrastructure