As of February 5, 2025, Sumitomo Electric Industries, Ltd. has initiated a project for constructing a storage battery system using redox flow batteries (final scale: output 4,000 kW, capacity 12,500 kWh) in Ama Town, Oki County, Shimane Prefecture in Japan. [1] This storage battery system is an initiative that three parties – Chugoku Electric Power Transmission & Distribution Co., Inc., Ama Town, and como-gomo. company – have worked on under a subsidy from Japan’s Ministry of the Environment titled “Facility Introduction Support Project for Mainstreaming Renewable Energy in Remote Islands.” Sumitomo Electric plans to contribute to the promotion of carbon neutrality and the enhancement of resilience to disasters in the Oki Islands through the redox flow battery system. The aforementioned three parties will accelerate efforts to realize a decarbonized society in Ama Town through a tripartite public-private partnership. The project will build a next-generation power network that can respond to disasters, including independent power supply operation (microgrid) during emergencies. This initiative is also expected to contribute to renewable energy development in the Oki islands.
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