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Japan Power Market Insights
Stay up-to-date with the latest news in the Japanese energy market
through our Insights blog, covering timely and notable occurrences in the industry
Japan Data Center Update 42: Nuclear Power and New Technologies Support Japan’s Data Center Rollout
Data-Center
November 4, 2026
Shikoku Electric explores nuclear-backed power supply to attract data centers to Ehime Shikoku Electric Power announced that it will explore a decarbonized power supply...
Capacity Market Reforms Create New Opportunities Amid Tightening Supply
Electricity
November 3, 2026
Japan’s capacity market is undergoing significant reforms as the country prepares for rising electricity demand, particularly from AI-driven data centers. These changes will reshape...
Japan Data Center Update 41: Japan Advances Data Center Plans Backed by Grid Power, Nuclear Energy, and On-Site Generation
Data-Center
October 28, 2026
Hokkaido seeks data center developers for six sites with 990 MW of power capacity The Hokkaido government has launched a public solicitation for developers...
Japan’s Long-Term Decarbonization Auction (LTDA) to Introduce Fixed Repayment Option for LNG Power Plants
LTDA
October 24, 2026
A new mechanism will allow LNG-only thermal power plants awarded contracts in the long-term decarbonization auction LDTA to choose to fix the amount they...
METI Explores Measures for Faster Data Center Connections
Data-Center
October 23, 2026
A working group under the Ministry of Economy, Trade and Industry (METI) has begun discussions on accelerating grid connections for large-scale electricity consumers, including...
Intraday Market Displays Bids by Area, Adjusted Imbalance Cap Rises to JPY 300/kWh
Power Market
October 23, 2026
On October 1, the Japan Electric Power Exchange (JEPX) began displaying bid information by area in its intraday market. The screen for trading participants...
Japan Data Center Update 40: AI Growth Drives Data Center Development Beyond the Tokyo Area
Data-Center
October 20, 2026
NTT Data reportedly finalizing deal for USD 6.3 billion Anthropic data center in Osaka Nikkei Asia reported, citing multiple unnamed sources, that NTT Data...
Japan Data Center Update 39: Japan Explores Workload Shifting as a Source of Energy System Flexibility
Data-Center
October 14, 2026
Workload shifting (WLS) could allow data centers to adjust when and where they consume electricity, reducing demand in regions experiencing grid constraints or high...
Japan Data Center Update 38: Large-Scale Data Center Development Gains Momentum
Data-Center
October 6, 2026
JERA to develop data center powered by up to 400 MW at Chiba thermal power station JERA announced that it will develop a data...
Japan’s GX-ETS Market Design: Implications for Power Prices and Market Dynamics
Market Updates
October 5, 2026
Key Takeaways Japan’s GX-ETS is moving toward full implementation, with mandatory participation for large emitters beginning in FY2026 and a dedicated emissions allowance trading...
Japan’s Household Electricity Bills to Hit Record Highs in October as Subsidies End
Market Updates
October 2, 2026
Japan’s ten major utilities say household electricity bills for power consumed in October will reach record highs. Under their government-approved regulated tariffs, bills for...
Mid-Long-Term Market Update: Trading Areas and Mandatory Generator Offers
Market Updates
October 2, 2026
The planned Mid-Long-Term Market will allow electricity retailers to procure power one and three years ahead to meet their supply capacity obligations. The Mid-Long-Term...