Mitsubishi Electric Corp. has delivered what it claims is the world’s largest energy storage system to Japanese power vendor Kyushu Electric Power Co. The system—with 50MW output and 300MWh rated capacity—is part of a pilot project to balance supply and demand via high-capacity energy storage systems, and was installed at the Buzen Substation in Buzen, Fukuoka Prefecture in Japan.
The facility offers energy storage similar to those of pumped hydro facilities that helps manage energy levels during peak times with renewable energy sources. According to Mitsubishi, the storage system uses effective overall control and improved operation efficiency through the use of Mitsubishi Electric’s BLEnDer RE battery SCADA system to monitor and control modules in a multiple module system. Furthermore, containerized, compact battery modules help to reduce the facility footprint, installation time and construction costs, Mitsubishi says.
The BLEnDer RE system smooths variations in frequency and power flow caused by renewable generation via battery control. According to Mitsubishi, the system also enables efficient operation via power supply control through the coordinated use of multiple-generation sources and batteries.
Mitsubishi says that as renewable energy resources continue to expand, the company will build more advanced battery-energy storage-control facilities in order to help balance supply and demand spikes of electric power in Japan and other parts of the world.
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