Bio-Energy: Biogas, Biomethane and Green-Hydrogen

Dear Colleagues,

Bio-energy, derived from organic materials such as agricultural residues, organic waste, and dedicated energy crops, plays a crucial role in transitioning to a sustainable and low-carbon energy future. Biogas, biomethane, and green hydrogen are key components of bio-energy that hold significant promise in meeting energy demands while reducing greenhouse gas emissions.

Biogas, produced through the anaerobic digestion of organic matter, comprises primarily methane (CH₄) and carbon dioxide (CO₂). It can be utilised for electricity generation, heating, and as a vehicle fuel, offering a versatile and renewable energy source. Furthermore, upgrading biogas to biomethane involves removing impurities to achieve a higher methane content, resulting in a premium-quality renewable natural gas suitable for injection into the existing gas grid or for use as a transportation fuel.

In addition to biogas and biomethane, green hydrogen produced from renewable sources through electrolysis holds immense potential as an energy carrier with zero carbon emissions. When combined with biogas and biomethane in a hybrid energy system, green hydrogen can offer long-term energy storage solutions, facilitate sector coupling, and support the decarbonisation of hard-to-abate sectors such as industry and transportation.

This Special Issue aims to provide a platform to share the latest developments in biogas production, biomethane upgrading, green hydrogen applications, and integrated energy systems. Both review and research articles are welcome.

Prof. Dr. João Fernando Pereira Gomes
Guest Editor

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