Large Capacity Lithium Ion Storage Units  

Posted by Big Gav in , , ,

After Gutenberg has a post on a Japanese energy storage / frequency control unit using Lithium Ion batteries - Large Capacity Lithium Ion Storage Units.

This blog reported before about energy storage that absorbs or delivers energy to the grid at intervals of five seconds. The frequency regulation system uses thousands of lithium-ion batteries.”

Now Green Car Congress reports on “Japan’s first cargo container-type large-capacity energy storage system using Li-ion batteries.” Mitsubishi Heavy Industries, Ltd. has developed a system capable of providing power of up to one megawatt (MW)
Its mobility makes the system suitable for a wide range of applications, including emergency use. The actual system has been installed at the Nagasaki Shipyard & Machinery Works of MHI in Nagasaki Prefecture, Japan, to begin verification testing for a power stabilization system application from early July towards the commercialization of the system.

The container-type “megawatt-class large-capacity energy storage system (ESS)” consists of a 40ft-long container unit, which houses more than 2,000 units of lithium-ion rechargeable batteries, and a 20ft-long container unit, in which two power conditioners are installed. Power conditioners are used for direct current (DC)/alternating current (AC) conversion and their input/output control. Each container unit can be moved by container trailers. The system has a capacity of 408 kWh and is designed to have a system efficiency of 90%.

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