Researchers at Jeonbuk National University analyzed two biomass-based hydrogen production systems with carbon capture and storage. The study found that generating electricity on-site using biomass and recovered heat, instead of relying on the grid, significantly improves the climate benefits. Both systems achieved net-negative emissions, but the on-site power approach removed more greenhouse gases under the study's assumptions. The full life cycle assessment covered biomass supply, transport, production, and storage. It also flagged trade-offs like soil and freshwater impacts, which matter for real-world deployment. The paper, published in Bioresource Technology, highlights that electricity supply strategy and sustainable biomass sourcing are key levers for making hydrogen genuinely carbon-negative. For industries considering BECCS-based hydrogen, the takeaway is that system design matters as much as the core technology. On-site cogeneration can reduce indirect emissions, but only if biomass is sourced responsibly and carbon storage remains secure.
