en.Wedoany.com Reported - The Kyushu region, due to rapid solar photovoltaic capacity growth leading to insufficient grid absorption capacity and prominent issues of curtailment and grid connection restrictions, has become one of the most active areas for energy storage deployment in Japan. Against this backdrop, a consortium comprising Itochu Corp., Mitsubishi Estate, and Tokyo Century has commenced construction of a 67 MW/230.1 MWh battery energy storage system in Chikuzen City, Fukuoka Prefecture, with plans to commence commercial operations in fiscal year 2027.

This storage facility will be equipped with 102 units of PowerX's Mega Power 2500 containerized systems. Each system utilizes a 10-foot ISO standard container and is manufactured based on lithium iron phosphate (LFP) chemistry. PowerX rates each system at a nominal capacity of 2,507 kWh and a rated capacity of 2,256 kWh; the total of 102 systems, calculated at rated capacity, aligns with the overall scale of 230.1 MWh. These units are supplied through a collaboration between PowerX and Itochu, under the brand name PowerX × Bluestorage package, with production based at PowerX's factory in Tamano City, Japan.

The project has been selected under the Ministry of Economy, Trade and Industry (METI) fiscal year 2025 utility-scale energy storage subsidy program. The three founding entities will jointly undertake financing and operational tasks, with the specific capital structure yet to be disclosed. The project will employ an artificial intelligence-based optimization system to manage electricity dispatch across three markets: the capacity market, wholesale market, and balancing market. The sponsors stated that the facility aims to participate simultaneously in regional balancing markets and national markets, combining government subsidy support with multi-market revenue streams.

Reuters reported in 2025 that Japan's pipeline of grid-scale energy storage projects is expanding significantly, with companies seeking grid connection for a total of 113 GW of storage capacity. METI's auction framework and subsidy programs are becoming key factors in determining which projects proceed to the construction phase. The 120 MWh Eku Energy project in Miyazaki Prefecture, which broke ground in 2024 and has a offtake agreement with Tokyo Gas, exemplifies the various business models currently adopted by Japanese developers, combining contract revenues with merchant revenues to support project financing.

This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com