Analysis of CCS Diffusion for CO2 Emission Reduction Considering Technology Diffusion Barriers in the Real World

Abstract Technology diffusion barriers exist widely in several global warming mitigation technologies. Carbon dioxide capture and storage (CCS) is expected as a cost effective technology for ambitious CO 2 emission reduction. However, large barriers will exist when private sectors invest in CCS in the real world. In this study, a global energy systems model, which the authors refer to as DNE21+, is used to analyse this issue. Our evaluation indicates that technology diffusion barriers have a significant impact on the diffusion of CCS technology. Bottom-up type policy approach for removing the technology diffusion barriers and improvements in the liability for very long term CO 2 storage and public acceptance will be important to achieve the widespread use of CCS.