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As an example of Hitachi’s power system stabilization solutions including energy storage systems being deployed overseas, the New Energy and Industrial Technology Development Organization (NEDO) has commissioned a Demonstration Project in Los Alamos County, New Mexico, USA, which includes a lead acid battery system comprised of lead acid batteries (LL1500-W model which is produced by Shin-Kobe Electric Machinery Co., Ltd.), a 500-kVA PCS for storage batteries. The PCS is a hybrid type that includes two circuits of DC/DC converters that can be connected to storage batteries and photovoltaic cells.

This demonstration project involves the construction of a system that is interconnected with the distribution line, and is engaging in a demonstration study into the effectiveness of suppressing short-term output fluctuations in photovoltaic power generation through the charging and discharging of lead-acid batteries.


Lead-acid Battery


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