Sumitomo Corp. has developed what it says is the world’s first large-scale power storage system utilizing used batteries collected from electric vehicles.
The company said Feb. 7 that it built the commercial-scale storage system on Yume-shima Island, Osaka, and that the system is scheduled to begin operating in February.
The prototype (600kW/400kWh) system consists of 16 used EV batteries and is designed to deal with fluctuations in energy output from the nearby “Hikari-no-mori” solar farm.
Sumitomo created a joint venture company, “4R Energy Corporation,” in collaboration with Nissan Motor Co. in September 2010 to address the secondary use of EV lithium-ion batteries.
Norihiko Nonaka, who is general manager of the venture's Battery Business Development Department, said: “We are delighted to be a part of such an important verification project that can both utilize used EV batteries and provide a large-scale power storage facility. These are important issues that need to be addressed for the future of renewable energy.”
Sumitomo’s concept was selected by the Environment Ministry as a model project in fiscal 2013 for battery storage control to promote renewable energy, the company said.
Sumitomo said it will seek new business opportunities for what it is touting as a highly economical storage system so as to encourage renewable energy use.
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