Japanese Government to Subsidize NGK's Sodium-sulfur Battery R&D

Author:Bob Andersen     Source:Times Observer     Click:591     Publish time:2013/9/11 10:18:51

Japan's Ministry of Economy, Trade and Industry (METI) has chosen NGK Insulators Ltd. (Nagoya, Japan) as a subsidized company through its 2013 “Initiative on Renewable Energy Surplus Power Technology Development”.

Through the initiative, METI aims to lower the cost of energy storage systems to the same level as hydropower. NGK states that its current focus is on research and development (R&D) to lower the cost of its sodium sulfur (NaS) battery system.

NGK expects solar photovoltaics (PV) and other renewable energy capacities to continue to expand due to Japan's feed-in tariff. The company notes that higher penetrations of electricity from variable renewable energy sources can lead to electricity quality issues, as well as a surplus of electricity supply at times.

Currently lower-cost pumped hydro storage is being used to handle such surplus, and NGK notes that batteries could also meet this need. The company notes that its NaS batteries are large volume, higher energy density, long-life batteries capable of producing a long-term stable energy supply.

NGK has been producing these batteries since 2002 for load-leveling, to accommodate renewable energy production and as an electricity power source.

Keywords:Japanese Government to Subsidize NGK's Sodium-sulfur Battery R&D
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