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Research papers on Green hydrogen

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  1. The role of renewable energy in the global energy transformation

    Dolf Gielen, Francisco Boshell, Değer Saygin, et al. · 2019 · Energy Strategy Reviews · 4,930 citations

    This paper explores the technical and economic characteristics of an accelerated energy transition to 2050, using new datasets for renewable energy. The analysis indicates that energy efficiency and renewable energy technologies are the core elements of that transition, and their synergies are likewise important. Favourable economics, ubiquitous resources, scalable technology, and significant socio-economic benefits underpin such a transition. Renewable energy can supply two-thirds of the total global energy demand, and contribute to the bulk of the greenhouse gas emissions reduction that is needed between now and 2050 for limiting average global surface temperature increase below 2 °C. Enab

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  4. Hydrogen energy systems: A critical review of technologies, applications, trends and challenges

    Meiling Yue, Hugo Lambert, Elodie Pahon, et al. · 2021 · Renewable and Sustainable Energy Reviews · 2,294 citations

    The global energy transition towards a carbon neutral society requires a profound transformation of electricity generation and consumption, as well as of electric power systems. Hydrogen has an important potential to accelerate the process of scaling up clean and renewable energy, however its integration in power systems remains little studied. This paper reviews the current progress and outlook of hydrogen technologies and their application in power systems for hydrogen production, re-electrification and storage. The characteristics of electrolysers and fuel cells are demonstrated with experimental data and the deployments of hydrogen for energy storage, power-to-gas, co- and tri-generation

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  5. Hydrogen production by PEM water electrolysis – A review

    S. Shiva Kumar, V. Himabindu · 2019 · Materials Science for Energy Technologies · 2,124 citations

    Hydrogen is the most efficient energy carrier. Hydrogen can be obtained from different sources of raw materials including water. Among many hydrogen production methods, eco-friendly and high purity of hydrogen can be obtained by water electrolysis. However, In terms of sustainability and environmental impact, PEM water electrolysis was considered as most promising techniques for high pure efficient hydrogen production from renewable energy sources and emits only oxygen as byproduct without any carbon emissions. Moreover, the produced hydrogen (H 2 ) and oxygen (O 2 ) directly used for fuel cell and industrial applications. However, overall water splitting resulting in only 4% of global indus

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  11. Hydrogen Production. Green Algae as a Source of Energy

    Anastasios Melis, Thomas Happe · 2001 · PLANT PHYSIOLOGY · 622 citations

    Hydrogen gas is thought to be the ideal fuel for a world in which air pollution has been alleviated, global warming has been arrested, and the environment has been protected in an economically sustainable manner. Hydrogen and electricity could team to provide attractive options in transportation and power generation. Interconversion between these two forms of energy suggests on-site utilization of hydrogen to generate electricity, with the electrical power grid serving in energy transportation, distribution utilization, and hydrogen regeneration as needed. A challenging problem in establishing H(2) as a source of energy for the future is the renewable and environmentally friendly generation

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  13. Green hydrogen energy production: current status and potential

    Ali O M Maka, Mubbashar Mehmood · 2024 · Clean Energy · 145 citations

    Abstract The technique of producing hydrogen by utilizing green and renewable energy sources is called green hydrogen production. Therefore, by implementing this technique, hydrogen will become a sustainable and clean energy source by lowering greenhouse gas emissions and reducing our reliance on fossil fuels. The key benefit of producing green hydrogen by utilizing green energy is that no harmful pollutants or greenhouse gases are directly released throughout the process. Hence, to guarantee all of the environmental advantages, it is crucial to consider the entire hydrogen supply chain, involving storage, transportation and end users. Hydrogen is a promising clean energy s

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  15. Recent Advances in Green Hydrogen Production by Electrolyzing Water with Anion-Exchange Membrane

    Lirong Zhang, Fang Qi, Rui Ren, et al. · 2025 · Research · 65 citations

    The development of clean and efficient renewable energy is of great strategic importance to realize green energy conversion and low-carbon growth. Hydrogen energy, as a renewable energy with “zero carbon emission”, can be efficiently converted into hydrogen energy and electric energy by electrolysis of water to hydrogen technology. Anion-exchange membrane water electrolysis (AEMWE), substantially advanced by nonprecious metal electrocatalysts, is among the most cost-effective and promising water electrolysis technologies, combining the advantages of proton exchange membranes with the proven technology of traditional alkaline water electrolysis and potentially eliminating the disadvantages of

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  17. A Critical Review of Green Hydrogen Production by Electrolysis: From Technology and Modeling to Performance and Cost

    Rafika Louli, Stefan Giurgea, I. Salhi, et al. · 2025 · Energies · 30 citations

    As the world shifts toward a low-carbon future, green hydrogen has emerged as a critical pillar of the energy transition. It is produced using renewable energy to power water electrolysis, and it is a clean and flexible alternative to hydrogen made from fossil fuels. However it is still hard to roll out on a large scale because of technological limits, high costs, and the need for infrastructure. This review critically analyzes current electrolysis methods, including established systems like alkaline and PEM electrolyzers, as well as newly developed concepts such as AEMWE and SOWE. It discusses how they can be used in renewable energy systems, important techno-economic and durability problem

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  19. Transforming waste to energy: nanocatalyst innovations driving green hydrogen production

    C. D., M. Channappagoudra, S. Samantaray, et al. · 2025 · Reviews in Inorganic Chemistry · 27 citations

    Abstract The burgeoning global demand for energy, coupled with the pressing need to mitigate carbon emissions, underscores the necessity for clean and sustainable energy alternatives, with green hydrogen emerging as a pivotal energy vector. Among the promising avenues for the production of green hydrogen, nano-catalysts derived from waste materials are attracting considerable interest due to their capacity to diminish production costs and environmental ramifications while capitalizing on underutilized waste streams. Notwithstanding recent advancements, significant knowledge deficits remain concerning the catalytic mechanisms, established performance benchmarks, and thorough sustainability ev

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  20. Exploring Economic Expansion of Green Hydrogen Production in South Africa

    Noluntu Dyantyi-Gwanya, S. Giwa, T. Ncanywa, et al. · 2025 · Sustainability · 21 citations

    Hydrogen is a crucial energy carrier for the Clean Energy Sustainable Development Goals and the just transition to low/zero-carbon energy. As a top CO2-emitting country, hydrogen (especially green hydrogen) production in South Africa has gained momentum due to the availability of resources, such as solar energy, land, wind energy, platinum group metals (as catalysts for electrolysers), and water. However, the demand for green hydrogen in South Africa is insignificant, which implies that the majority of the production must be exported. Despite the positive developments, there are unclear matters, such as dependence on the national electricity grid for green hydrogen production and the cost of

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  23. Solar‐Driven Atmospheric Water Production Through Hierarchically Ordered Porous Carbon for Self‐Sustaining Green Hydrogen Production

    Bo Fu, Jifang Zhang, Neil Robinson, et al. · 2025 · Advanced Materials (Deerfield Beach, Fla.) · 15 citations

    Green hydrogen production by proton exchange membrane water electrolysis (PEMWE) powered by clean energy is a promising and environmentally friendly technology. However, it relies on a high‐purity water source, which is limited in regions facing water scarcity. Here, a coupled self‐sustaining solar‐enabled system is reported that couples atmospheric water harvesting with PEM water electrolysis (AWH‐PEMWE), offering a novel pathway for clean water generation and green hydrogen production. The atmospheric water harvester (AWH) component utilizes N and O co‐doped hydrophilic ordered porous carbon, engineered with an interconnected hierarchical porous structure with prosperous channels for effic

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  24. Anticipating green hydrogen futures: exploring the socio-material production of a new clean fuel

    T. Ariztía, Tomás Undurraga · 2025 · Journal of Cultural Economy · 13 citations

    ABSTRACT This paper examines the enactment of green hydrogen futures in Chilean Patagonia. Complementing the literature on socio-technical imaginaries, we explore the role of anticipatory practices as a key means by which certain energy futures and technological interventions around green hydrogen (GH2) materialize, while other alternatives are discarded. We explore how, through these socio-material practices, the value of this new fuel is staged and dramatized. Drawing on ethnographic fieldwork, interviews, and secondary material, we empirically study two situations in which the green hydrogen futures are staged: GH2 technology fairs, and GH2 project prototypes and demonstrations. While the

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