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Panasonic, GS Yuasa speak of stationary storage batteries

Panasonic Corp and GS Yuasa Corp made speeches on their stationary storage batteries for a session titled "Advanced Batteries for Stationary Applications" at LLIBTA, a conference that took place along with AABC 2012, which ran from Feb 6 to 10, 2012, in Orlando, the US.

Panasonic delivered a lecture on the Kasai Green Energy Park, which Sanyo Electric Co Ltd completed in 2010 with an investment of about ¥5 billion (approx US$64.4 million). Also, Panasonic introduced a 1MW photovoltaic (PV) power generation system, an electricity storage system using a 1.5MWh lithium-ion (Li-ion) rechargeable battery unit and the "Smart Energy System (SES)," which optimally controls energy consumption by using power-saving devices. And the company explained about the case where the peak power consumption was reduced by up to 17% at the Kasai Plant.

On the other hand, GS Yuasa explained about its rapid charging system using 2kW PV power generation and a 16kWh Li-ion rechargeable battery unit as well as an uninterruptible power system (UPS) using 98 40Ah cells. Also, it introduced an electricity storage system whose capacity and output are 1MWh and 1MW, respectively, for power grids. It contains 475 modules, each of which uses 12 50Ah cells. Its voltage is 500V. And it uses four 250kW inverters.

In the session, the Electric Power Research Institute (EPRI, US-based institute), Southern California Edison (SCE, a major power company based in California, the US) and the Fraunhofer Institute for Solar Energy System (a Germany-based research institute) also delivered lectures.

Among them, SCE introduced the Tehachapi Storage Project (TSP, 2010-2014), which is for connecting a stationary storage battery system to a power grid, the Irvine Smart Grid Demonstration (ISGD, 2010-2014), which is for connecting a stationary storage battery system to a local distribution network, and the Home Battery Pilot (HBP, 2011-2014), which is for testing home-use electricity storage systems.

SCE installed 32MWh and 100kWh Li-ion rechargeable batteries manufactured by A123 Systems Inc for the TSP and ISGD, respectively. For the HBP, the company uses LG Chem Ltd's Li-ion rechargeable battery that is also used for plug-in hybrid vehicles and has a capacity of 10kWh.

Written by Kouji Kariatsumari

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