Insights & Analysis
A straight-to-the-point monthly summary of important regulatory discussions and changes in Japan's power market.
In the May 2026 issue:
- Summary of METI, OCCTO, and other committee meetings
- Proposed revised thresholds for solar project EIA
- Revised capacity market withdrawal penalty system proposal
- Kyushu renewable curtailment system revision
- METI power business license and registration changes
- Nuclear power plant operational status updates
- ...and more
The next issue will be released on July 15, 2026.
Enehub Charts of the Week
Economic curtailment of solar and wind generation in Japan hit a new high for the first half of a year. Preliminary data shows 1.74 TWh of output was curtailed between January and June 2025, representing a 60% increase compared to the first half of calendar 2024 and a 4% increase versus H1 2023, the previous record half-year.
