Green Ammonia for the Renewable Energy Transition

Ammonia is attracting growing attention as a carbon-free energy carrier and as a route to decarbonizing one of the world's largest chemical industries. It is energy dense, can be liquefied under mild conditions, and is already produced, stored, and transported at large scale using existing infrastructure. These properties make ammonia a promising option for storing renewable energy, moving it over long distances, and supplying carbon-free fuel to sectors that are difficult to electrify.At present, however, almost all ammonia is produced through the Haber-Bosch process using hydrogen derived from fossil fuels, making the sector a significant source of global carbon dioxide emissions. Producing green ammonia from renewable electricity, and using it efficiently and safely, requires advances across the whole value chain. These range from new and improved synthesis routes and catalysts, to the integration of production with variable renewable power, to the techno-economic and environmental assessment of ammonia as an energy carrier.This Research Topic aims to bring together current research on the production, integration, and use of green ammonia within sustainable energy systems. We welcome original research, reviews, perspectives, and methods papers that advance the technical, economic, and environmental understanding of green ammonia and its role in the energy transition.Themes of interest include, but are not limited to:• Renewable-powered ammonia synthesis, including electrified and flexible Haber-Bosch processes• Emerging synthesis routes such as electrochemical, photocatalytic, and nitrate or nitrite reduction pathways, and the catalysts that enable them• Integration of ammonia production with variable renewable energy sources• Distributed and centralized production, storage, transport, and supply-chain considerations• Ammonia as a fuel and energy carrier for power generation and hard-to-abate sectors• Techno-economic analysis and process optimization of green ammonia systems• Life cycle assessment, carbon footprinting, and net energy analysis• Policy, market, uncertainty, and sustainability perspectives on the ammonia economyThrough these contributions, the Research Topic seeks to provide an integrated view of how green ammonia can support a sustainable, renewable energy future, contributing directly to Sustainable Development Goal 7 (Affordable and Clean Energy), SDG 9 (Industry, Innovation and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG 13 (Climate Action). Topic editors: Matthew Palys, Ilias Mitrai, Vincent Amanor-Boadu, Ashadul Adalder Source: https://www.frontiersin.org/research-topics/83406/green-ammonia-for-the-renewable-energy-transition