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Green hydrogen as a source of renewable energy: a step towards sustainability, an overview

2024119 citationsOpen accessModern Sciences and Arts University

In plain language

Hydrogen is an adaptable, clean-burning energy carrier with high energy content that could replace fossil fuels across various industries. However, most hydrogen is currently manufactured using steam methane reforming, a process that releases substantial greenhouse gas emissions and restricts its environmental benefits. Shifting towards sustainable energy requires advancing renewable hydrogen generation through electrolysis. In addition to cleaner production methods, establishing widespread infrastructure, such as refuelling stations alongside dedicated storage and transport networks, is essential for industry expansion. Integrating hydrogen production within eco-industrial parks presents distinct opportunities and technical challenges, supported by emerging facilitative technologies. Ultimately, establishing hydrogen within the global energy supply requires sustained investment and dedicated efforts towards technological development and commercialisation.

Key takeaways

  • Most current hydrogen production relies on steam methane reforming, which produces substantial greenhouse gas emissions.
  • Advancing renewable hydrogen requires targeted investment in electrolysis technologies.
  • Widespread adoption depends on expanding infrastructure such as refuelling stations, storage facilities, and transport networks.
  • Eco-industrial parks provide specific opportunities and challenges for integrating localized hydrogen generation.

Why it matters

Replacing fossil fuels with hydrogen offers a route towards cleaner industrial operations and reduced carbon emissions. However, realising this potential requires shifting from emissions-heavy production methods to renewable electrolysis, alongside building critical transport and storage networks. Understanding these infrastructure and production bottlenecks helps industry planners and policymakers target investments effectively.

Commercialisation angle

The abstract highlights potential commercial applications in industrial energy supply, transport refuelling, and eco-industrial parks. Target users include industrial manufacturers, energy suppliers, and transport infrastructure operators. Because market growth remains dependent on developing electrolysis capabilities, storage systems, and distribution networks to replace fossil-based production, the sector appears to be in an ongoing development and infrastructure-building phase rather than fully near-market.

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Abstract

Abstract Hydrogen has emerged as a promising energy source for a cleaner and more sustainable future due to its clean-burning nature, versatility, and high energy content. Moreover, hydrogen is an energy carrier with the potential to replace fossil fuels as the primary source of energy in various industries. In this review article, we explore the potential of hydrogen as a part of the global energy mix and the current state of its development. The majority of hydrogen production currently occurs through steam methane reforming, which produces significant greenhouse gas emissions and limits the potential of hydrogen as a clean energy source. Significant investment and advancements in renewable hydrogen production through electrolysis are necessary to overcome this limitation. There is also a growing demand for hydrogen infrastructure, including hydrogen refueling stations and storage and transportation systems, which are crucial for the growth and success of the hydrogen industry. The future of hydrogen as a part of the global energy mix will depend on continued investment and commitment to develop and commercialize this promising energy source. Our review also explores the relationship between eco-industrial parks and hydrogen production, including the benefits and challenges of hydrogen production in EIPs and the various technologies being developed to facilitate this process.

Research topics

  • Hybrid Renewable Energy Systems
  • Energy and Environment Impacts
  • Hydrogen Storage and Materials

Sustainable Development Goals

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DOI: 10.1007/s10668-024-04892-z

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