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Japan spot power prices jump to multiyear highs

Andre Savage
Published Nov 9, 2026
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Summary:
  • Next-day spot prices for Tohoku and Tokyo climbed to ¥40.18 ($0.25) per kilowatt-hour on Sunday, the highest since September 2022 and the first time above ¥40/kWh since then.
  • Week over week, Tohoku advanced 17% and Tokyo rose 11%, figures from the Japan Electric Power Exchange show.
  • The nationwide average increased 14% to ¥34.44 per kilowatt-hour on the same day.

Prices snap back to 2022 peaks

Spot electricity prices in Tohoku and Tokyo moved up to ¥40.18 per kilowatt-hour on Sunday. That is the strongest reading since September 2022 and the first return above ¥40 per kWh since that month.

Compared with the prior week, Tohoku gained 17% and Tokyo added 11%. Across Japan, the average settled at ¥34.44 per kilowatt-hour, up 14% week over week.

Fresh tools can help investors spot subtle shifts in market dynamics. We're hosting our first ever investor livestream on 11/17 to show you how to use ChatGPT and Claude to invest like a pro, hosted by Briefs Finance CEO Jaspreet Singh. Save your seat.

Weather and near-term outlook

The latest jump came alongside colder-than-normal conditions and higher fuel costs. Forecasts indicate Tohoku could run as much as 4.3C below normal this week, while Tokyo is expected to be about 3C milder than usual, based on figures compiled by Bloomberg with the European Centre for Medium-Range Weather Forecasts.

Fuel backdrop

Liquefied natural gas remains a key part of Japan's power mix, and LNG prices are holding at their highest since 2022. Flows of LNG from Qatar, a leading supplier, via the Strait of Hormuz have fallen to a small share of what they were before the war.

Adopting smarter tools can help investors make more confident long term choices. On 11/17, our CEO Jaspreet Singh goes live for our first ever investor livestream on how to use ChatGPT and Claude to invest like a pro. Register to join him.

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