Symposium EN12—Advanced Materials and Chemistries for Low-Cost and Sustainable Batteries
2021 Kavli Early Career Lectureship in Materials Science

Symposium EN13—Climate Change Mitigation Technologies

Etsushi Kato, Institute of Applied Energy

Role of Negative Emissions and Carbon Recycling Technologies in the Transitions of Japan’s Energy Systems Towards Net-Zero Emissions Goal

Written by Chetna Madan

The global unison at achieving net-zero emission under the Paris Agreement Act has propelled various Asian countries, including Japan, to adopt carbon neutrality targets in the coming few decades. To cope with stringent carbon emissions from difficult-to-decarbonize sectors such as heavy industry, transportation, and agricultural sector, more rigorous research for implementing the sustainable Negative Emissions Technologies (NETs) is needed. Exploring carbon-neutral fuels and negative emissions technologies becomes the need of the hour. Compensatory carbon capture and storage (CCS) has to be promoted by sequestration of CO2 by direct air capture (DAC) to minerals, Biochar formation from waste biomass processing, and afforestation. Japan is harnessing CCS using bioenergy (BECCS) and direct CO2 capture with a capacity of >500 t CO2 /day, as demonstrated in a project by the Ministry of Environment in Fukuoka. This study exhibited by Kato analyzes Japan’s energy system transitioning toward the net-zero emission goal utilizing a bottom-up energy system model, TIMES-Japan. The role of carbon recycling technologies using DAC and BECCS is highly emphasized to achieve the net-zero targets by 2050.

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