Advancing hydrogen as a key driver for decarbonized power systems

The transition to a low-carbon energy future necessitates the rapid expansion of clean energy solutions, with hydrogen ( H 2 ) emerging as a pivotal enabler of decarbonized power systems. This study critically examines the evolving role of H 2 in the global energy transition, focusing on its increasing demand, integration into electricity generation, and broader systemic significance. The paper explores the growth of demand for low-emission H 2 , highlighting key drivers such as policy incentives, industrial applications, and emerging market trends. The role of H 2 in electricity generation is analyzed in the context of grid stability, energy storage, and its potential to complement renewable energy sources. Furthermore, the article addresses the essential role of hydrogen within the energy system, particularly in hard-to-abate sectors and as a vector for sectoral integration. It provides a comprehensive assessment of output and energy consumption, examining production pathways, efficiency considerations, and consumption trends across diverse applications. The article also delves into investment and finance mechanisms, evaluating capital flows, multilateral financial commitments, and the economic viability of H 2 technologies. Additionally, the role of innovation in H 2 -powered electricity generation is explored, emphasizing advancements in electrolysis, fuel cell technology, and novel deployment models. The article concludes with strategic recommendations aimed at accelerating the deployment of H 2 technologies, fostering policy frameworks, and enhancing financial support mechanisms to ensure large-scale adoption. By addressing these critical dimensions, this study provides a holistic perspective on H 2 transformative potential as a key driver of decarbonized power systems.

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