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Japan Faces Record Electricity Costs as Heat and Supply Crises Converge

With temperatures climbing toward 40°C across multiple prefectures, Japan’s day-ahead spot electricity prices hit a three-and-a-half-year peak of 24.78 yen per kilowatt-hour this Wednesday. The 24% spike this week reflects a volatile intersection of extreme weather and a renewed energy supply squeeze across Asian markets.

Japan Faces Record Electricity Costs as Heat and Supply Crises Converge

The surge in power costs stems from a tightening energy market exacerbated by the return of shipping blockages in the Strait of Hormuz. As Middle Eastern hostilities disrupt liquefied natural gas flows, spot LNG prices have climbed to $21.61 per million British thermal units. This disruption abruptly halted the recovery of Qatari export volumes, leaving major importers in Northeast Asia scrambling for supply.

Domestic demand remains the primary driver of the current price escalation. Forecasts suggest that the intense heat wave will persist through early August, forcing heavy reliance on air conditioning and putting sustained pressure on the national grid. Compounding these structural issues is a weakened yen, which has significantly inflated the cost of fuel imports. As utilities pass these rising expenses to the market, the nation braces for a prolonged period of energy price volatility.

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