System status

Live, sourced, monitored.

The real public data behind the app — refreshed through the day, watched continuously, and labelled honestly.

Partial — a feed is recovering · updated 29 minutes ago
Per-region freshness
Chubu
updated 29 minutes ago
Chugoku
updated 29 minutes ago
Hokkaido
updated 29 minutes ago
Hokuriku
updated 29 minutes ago
Kansai
updated 29 minutes ago
Kyushu
updated 29 minutes ago
≈ carbon estimated
Okinawa
updated 29 minutes ago
Shikoku
updated 29 minutes ago
Tohoku
updated 29 minutes ago
Tokyo
updated 29 minutes ago
10
grid regions
30-min
resolution
Carbon + price
per slot
36
feeds monitored
943
days of history
Sources, continuously monitored
JEPX Day-ahead spot prices
Regional TSOs Generation mix → carbon intensity (9 areas)
e-Stat Household energy benchmarks (CC BY 4.0)
Spot prices (JEPX) 1/1
Carbon · generation mix 9/10
recovering: Tokyo carbon (eria_jukyu)
Carbon forecasts 10/10
Fuel-cost adjustments (燃調) 12/13
recovering: TEPCO fuel adjustment (燃料費調整単価)
Household benchmarks 1/1
Supporting feeds 1/1

36 data feeds watched every day and 2 recovering — a broken feed is auto-detected and self-heals; carbon is labelled ≈ where a region publishes no live fuel split (Kyushu).

Recent feed events
05 Aug 2026 · Tokyo carbon (eria_jukyu) interrupted
02 Aug 2026 · Chubu carbon (eria_jukyu) recovered
01 Aug 2026 · Chubu carbon (eria_jukyu) degraded
23 Jul 2026 · Osaka Gas fuel adjustment (燃料費調整単価) recovered
22 Jul 2026 · Osaka Gas fuel adjustment (燃料費調整単価) degraded
Tariff library
26
plans served
15
retailers
1
燃調 tables current

A plan is served only after its rates are verified against the provider's published price table (料金表) — last verification 16 Jun 2026. Fuel-cost adjustments (燃料費調整) are refreshed monthly — current for August 2026; renewable surcharge set for FY2026.

Data: JEPX, the regional transmission operators, and e-Stat (政府統計, CC BY 4.0). This is per-region public data — never per-user; your own usage stays on your device.