Greenhouse Gas Removals

The project has significant potential to generate new learning by bringing together biomethane production, biogenic carbon capture and the emerging UK CCUS market within a single assessment.

Key areas of new learning include:

• the realistic quantity of concentrated biogenic CO₂ potentially available from UK biomethane production
• the corresponding scale of negative emissions that could be achieved through permanent geological storage
• indicative £/tCO₂ economics across capture, conditioning, transportation and storage
• the economics of producing biomethane and subsequently using it at carbon-capture-enabled facilities
• the geographical and commercial relationship between biomethane production sites and emerging CCUS clusters
• whether distributed biomethane-derived CO₂ could provide useful early volumes to CCUS infrastructure
• the relative economics of liquid and gaseous CO₂ transportation and injection
• the circumstances in which CO₂ utilisation may provide greater value than permanent storage
• the barriers within current GGR business models that may prevent biomethane-derived removals from being recognised or appropriately rewarded
• the potential role of biomethane and gas networks within a future integrated renewable-gas and carbon-removal systems

This learning will be relevant beyond SGN and can inform other GB gas distribution networks, biomethane producers, CCUS developers, policymakers and the wider energy industry.