Japan's LTDA Auction Secures 1.25 GW in Battery Storage Capacity
Japan awarded 1.25 GW of battery storage capacity across 19 projects in its FY2025 long-term decarbonization auction. This represents nearly 30% of all decarbonization category awards despite a significant drop in overall bid capacity.

In Japan's FY2025 long-term decarbonization auction, 1.25 GW of battery storage was secured from 19 projects, down from 1.37 GW in FY2024. The total capacity awarded in the auction was 7.3 GW across 32 projects, with 4.26 GW attributed to decarbonization-source projects.
Lithium-ion systems contributed 551 MW, while non-lithium technologies secured 699 MW. Bidding capacity for battery storage decreased from nearly 7 GW in FY2024 to 2.73 GW in FY2025 due to new eligibility requirements excluding projects with durations shorter than six hours. The auction also awarded contracts to nuclear power and new hydrogen-fired thermal generation projects, indicating a diverse energy strategy.




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