6/30/16 edited thread title to include V to G use, while the packs remain in BEVs.
IMO, Nissan is the only BEV manufacturer that seems to understand that the economic viability of BEVs is, to a considerable extent, dependent on making full use of the battery life cycle, with initial use in BEVs, then in stationary applications after they lose energy density.
Good to see the first commercial repurposing of LEAF batteries, though I wouldn't call 400 kWh (I don't think that figure could be correct, if from only sixteen batteries) "large scale".
Sumitomo installs first large-scale power system using used EV batteries
8 February 2014
Sumitomo Corporation has developed and installed the first large-scale power storage system which utilizes used batteries collected from electric vehicles. This commercial scale storage system, built on Yume-shima Island, Osaka, will begin operating in February 2014.
Sumitomo Corporation created the joint venture company, 4R Energy Corporation, in collaboration with Nissan Motor Co., Ltd. in September 2010, to address the secondary use of EV lithium-ion batteries. (Earlier post.) The used EV batteries that will be recycled into this large-scale storage system have been recovered and have gone through thorough inspection and maintenance at 4R, to confirm safety and performance. This prototype system (600kW/400kWh) consists of sixteen used EV batteries.
Over the next three years, the system will measure the smoothing effect of energy output fluctuation from the nearby “Hikari-no-mori,” solar farm, and will aim to establish a large-scale power storage technology by safely and effectively utilizing the huge quantities of discarded used EV batteries which will become available in the future...
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