The hydrogen economy fairytale†

IF 9.3 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Green Chemistry Pub Date : 2025-05-27 DOI:10.1039/D5GC00946D

Tycho Ehrhardt and Gadi Rothenberg

引用次数: 0

Abstract

We present a quantitative and realistic analysis of the current situation of hydrogen production worldwide. Subsequently, we calculate the thresholds needed for applying so-called “green hydrogen” as an energy carrier on a scale that would make a sizeable change in the world energy market. Using a simple back-of-the-envelope calculation, we show that green hydrogen cannot account for even 10% of the world energy demand by 2050. Considering also the time and investment required for building a worldwide green hydrogen infrastructure, we conclude that the hydrogen economy narrative, while elegant and desirable, has no basis in reality in the 21^st century.

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氢经济的童话

我们对全球氢气生产的现状进行了定量和现实的分析。随后，我们计算了将所谓的“绿色氢”作为能源载体大规模应用所需的门槛，这将使世界能源市场发生巨大变化。通过一个简单的粗略计算，我们发现，到2050年，绿色氢甚至不能占世界能源需求的10%。考虑到建设全球绿色氢基础设施所需的时间和投资，我们得出结论，氢经济叙事虽然优雅而可取，但在21世纪没有现实基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Green Chemistry 化学-化学综合

CiteScore

16.10

自引率

7.10%

发文量

677

审稿时长

1.4 months

期刊介绍： Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.