- Statistics
- Renewable Energy
[Supply & Demand, Inter-regional Flows] Power supply and demand data (preliminary figures) up to 31 May added
15 June 2026
Electricity Statistics
The ‘Electricity Statistics’ section compiles data on the state of renewable energy growth in Japan and around the world. It is updated once a year, based on statistical data published by governments and research institutes, and provides basic information on the status of renewable electricity deployment.
Maps & Charts
The 'Maps & Charts' section includes a 'Power Supply & Demand’ page, which provides hourly information on power supply and demand in Japan and by region, and an 'Offshore Wind Project Areas & Transmission Lines Map', which tracks the operation and development of offshore wind power generation and transmission lines laid across Japan. Both are timely updated.

Japan Electricity Trends
Electricity generation mix, changes in electricity generation (vs FY2010), trends of electricity generation from RE sources, share of RE in electricity generation


Global Electricity Trends
Trends in electricity generation, electricity generation mix, electricity generation mix by country, RE share in electricity consumption by country

Power Supply & Demand in Japan

Offshore Wind Project Areas & Transmission Lines Map in Japan
[Supply & Demand, Inter-regional Flows] Power supply and demand data (preliminary figures) up to 31 May added
15 June 2026
[Supply & Demand, Inter-regional Flows] Power supply and demand data (preliminary figures) up to 31 Mar. added
4 June 2026
[Supply & Demand, Inter-regional Flows] Notes on Data for the “Interconnector Power Flow Map” and “Interconnector Power Flow Chart”
4 June 2026
[Japan Electricity Trends] Annual data partially revised with finalized figures
12 May 2026
[RE Trends in Japan] Cumulative Installed Capacity in the World and in Selected Countries updated
20 April 2026