Renewable and Sustainable Energy Reviews· 2021Q1· Review
Hydrogen energy systems: A critical review of technologies, applications, trends and challenges
- 2,222citations
- Q1SCImago
- 2021year
Short summary
Hydrogen holds significant potential for accelerating the global energy transition to carbon neutrality, yet its integration into power systems is underexplored.
AI-generated from the title and abstract; the full text is not read.
Key points
- Hydrogen is crucial for the energy transition but its power system integration needs more study.
- Electrolyzer and fuel cell characteristics are detailed with experimental data.
- Global projects demonstrate hydrogen use in storage, power-to-gas, co-generation, and transport.
- Cost, efficiency, and durability are the primary technological and economic hurdles.
- Statistical literature analysis confirms cost, efficiency, and durability as critical aspects.
AI-generated from the title and abstract; the full text is not read.
Abstract
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 and transportation are investigated using examples from worldwide projects. The current techno-economic status of these technologies and applications is presented, in which cost, efficiency and durability are identified as the main critical aspects. This is also confirmed by the results of a statistical analysis of the literature. Finally, conclusions show that continuous efforts on performance improvements, scale ramp-up, technical prospects and political support are required to enable a cost-competitive hydrogen economy.
The authors' abstract, as published at the source. Renewable and Sustainable Energy Reviews, 2021 · DOI ↗
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Field: Energy Engineering and Power Technology
Energy Engineering and Power TechnologyEnergy