A deep dive into the modelling assumptions for biomass with carbon capture and storage (BECCS): A transparency exercise.

摘要: Bioenergy with carbon capture and storage (BECCS) is envisaged as a critical element of most deep decarbonisation pathways compatible the Paris Agreement. Such transformational upscaling – to 3 - 7 Gt CO2/yr by 2050 requires an unprecedented technological, economic, socio-cultural political effort, along with, crucially, transparent communication between all stakeholders. Integrated Assessment Models (IAMs) that underpin 1.5°C scenarios assessed IPCC have played role in building assessing narratives. However, their high-level aggregation complexity can cause them be perceived non-transparent stakeholders outside IAM community. This paper bridges this gap offering comprehensive assessment BECCS assumptions used IAMs so open wider audience. We focus on key five aspects BECCS: biomass availability, technologies, CO2 transport infrastructure, costs, system conditions which favour deployment BECCS. Through structured review, we find communicate major cost transparently. quality however fades dig deeper into modelling details. particularly true for sets technological elements such found least assumptions. also are less completeness treatment investigated, not regarding inclusion institutional-regulatory dimensions feasibility suggested IPCC. conclude practical discussion around ways increasing transparency bridge community from other disciplines, policy decision makers, financiers, public.