TEPCO Power Grid operates the Tokyo area network, the largest of Japan's ten utility areas, serving roughly a third of national demand including greater Tokyo. GridVigil tracks hourly area demand and TEPCO's own daily peak forecast from TEPCO's published denki yoho data. Japan has no nationwide queryable feed, so the Tokyo area is tracked as a partial-country grid and Japan is not colored on GridVigil's map.
As of Aug 25, 2026, real grid metrics for Tokyo Area are shown below. GridVigil's Power Pressure Score is not yet calculated for this region.
Current data
Current Tokyo Area electricity demand is 48.8 GW.
The most recent peak was 48.8 GW.
GridVigil Power Pressure Score is not yet calculated for Tokyo Area: the U.S. scoring thresholds aren't a defensible fit without region-specific calibration, so raw metrics are shown here instead. Why.
Data last updated:
Near-term load forecast
Aug 24, 2026: 41.9 GW forecast peak
Aug 25, 2026: 52.4 GW forecast peak
Source: tepco_juyo, as of Aug 25, 2026.
Historical comparison
Tokyo Area's peak today is 48.8 GW, higher than any other day in the past 1 day.
Sourced from: tepco_juyo.
Full interactive dashboard
Charts, historical trends, generation mix, the large-load pipeline, and region-specific alerts for Tokyo Area all live on the full dashboard.