EU Projects


METHAREN is an innovation actions project funded by the European Union under the Horizon Europe program. It aims to demonstrate a cost-effective, innovative, more sustainable and circular biomethane production system enabling renewable energy sources intermittency management.

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Many EU countries are net importers of oil and gas (in 2022 the EU’s natural gas import dependency rate was 97 %), and thus particularly exposed to energy reliability and market volatility risk. EU natural gas production is continuing its decreasing trend. As such, the EU Agenda ambitious objectives, together with the external dependence on natural gas, imply that green gases such as bio-syngas are essential in the energy transition. SUPREMAS in this framework is determined to advance the European technology leadership in bio-energy development, fostering decentralized gas systems development and contributing to the energy transition for different use cases. SUPREMAS outcomes will enable circular value chains where multiple residues, discarded from different processes, will be valorized providing electricity, heat and cooling and new materials. SUPREMAS will develop cost-effective modular and movable syngas production units particularly suitable to treat sewage sludge, digestate and the organic fraction of municipal solid waste as well as a Decision Support Tool designed to guide decision-making and impact assessment. Environmental sustainability, and technical-economic viability of the proposed solutions will be validated through a demonstration campaign in two different EU countries (Spain and Portugal). A deep replicability assessment will be done and pre-feasibility analysis developed in 10 further demo sites across all over Europe. 6 Co-creation workshops will be organized to promote stakeholders’ engagement and communities involvement thus unlocking barriers and making SUPREMAS replication real. The project duration is 4 years, from May 2024 to April 2028.

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REGATRACE (Renewable GAs TRAde Centre in Europe) aimed to create an efficient trade system based on issuing and trading biomethane/renewable gases Guarantees of Origin (GoO). This will strongly contribute to the uptake of the European common biomethane market. It will be achieved by setting up a European biomethane/renewable gases GoO system, by setting up national GoO issuing bodies, by integrating GoO from different renewable gas technologies with electric and hydrogen GoO systems, through integrated assessment and sustainable feedstock mobilisation strategies and technology synergies, through support for biomethane market uptake, and by transferring the results beyond the project’s countries.

A stable, reliable and common market for biomethane and other renewable gases in Europe can help achieve EU political targets and decouple its energy systems from fossil fuels: biomethane/renewable gases can be produced from waste or residual streams of organic material and they can be transmitted and stored in existing infrastructures, making it possible to combine the European natural gas and electricity grids.

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BIOSURF Deliverables

The objective of BIOSURF (BIOmethane as SUstainable and Renewable Fuel) is to increase the production and use of biomethane (from animal waste, other waste materials and sustainable biomass), for grid injection and as transport fuel, by removing non-technical barriers and by paving the way towards a European biomethane market.


  • Comprehensive guidelines for establishing national biomethane registries BIOSURF-D3.1
  • Technical-administrative proposal to EC for declaring natural gas network as a single, closed mass-balancing system with respect to biomethane cross-border transactions BIOSURF-D3.2
  • Guidelines for creating the European Biomethane Guarantees of Origin BIOSURF-D3.3
  • Technical-economic analysis for determining the feasibility threshold for tradable biomethane certificates BIOSURF-D3.4
  • Market survey on determining the market accepted threshold for the value of tradable biomethane certificates BIOSURF-D3.5
  • Proposal for the establishment of national and European biomethane certificate trading platforms BIOSURF-D3.6
  • Report on the practical experiences with the application of the European biomethane standards BIOSURF-D3.7
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