Aliabadi et al. (2026): Carbon Dioxide Removal Options for Energy Transitions: BECCS versus DACCS in Germany

Danial Esmaeili Aliabadi, Sandra Gutjahr, Mohammad Sadr, Matthias Jordan and Daniela Thrän, IN: IEEE, https://doi.org/10.1109/EEM68581.2026.11589592

There is an ongoing debate about whether the authors should heavily invest in variable renewable energy to reduce anthropogenic emissions and utilize surplus electricity for direct air carbon capture and storage (DACCS), or instead prioritize bioenergy with carbon capture and storage (BECCS) to provide system flexibility while simultaneously removing atmospheric emissions. Although DACCS is more costly, achieving ambitious climate targets may ultimately require such extreme mitigation options. In this study, the authors integrate DACCS technology into the stochastic BENOPTex model, which features various BECCS concepts and CO₂ utilization pathways, to investigate the optimal contribution of carbon removal technologies for net-zero energy systems under different conditions in Germany. The risk sensitivity is formulated using the Value-at-Risk measure.

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