Promotion of initiatives toward the realization of a hydrogen-based society.
- AFFORDABLE AND
CLEAN ENERGY
Issue
Grid connection issues for renewable energy.
Following the 2016 Paris Agreement, Japan set a target to reduce greenhouse gas emissions by 26% by 2030 and to increase the share of renewable energy in its power generation mix from 11% to 22–24%. However, the expansion of solar power under the feed-in tariff system led to challenges with grid connection capacity, which became a bottleneck to further renewable energy adoption.
Approach
Proposal to municipal leaders for promoting a hydrogen-based society.
Focusing on hydrogen’s advantages in long-term energy storage and supply-demand adjustments, such as accommodating seasonal fluctuations, we proposed its use to municipal leaders with ambitious renewable energy targets. The proposal highlighted hydrogen’s potential not only to achieve renewable energy goals but also to contribute to regional industrial development, tourism promotion, and disaster preparedness.
For example, to a prefecture in the Tohoku region aiming for 100% renewable energy supply by 2040, we highlighted the anticipated technical and operational challenges, such as grid connection limitations and surplus electricity utilization. We also emphasized the need to evaluate business models, job creation effects, and investment returns. Incorporating examples of Power-to-Gas initiatives in Germany and Denmark, we demonstrated the potential for achieving 100% renewable energy using hydrogen through a regional PPS (Power Producer and Supplier) system.