Sumitomo Electric Industries Ltd (<a href="https://www2.jpx.co.jp/tseHpFront/StockSearch.do?callJorEFlg=1&method=topsearch&topSearchStr=5802" target="_blank">TYO:5802</a>) said on Wednesday that it has launched a project to install a 4-MW/12.5-MWh redox flow battery system in Ama Town, in Japan’s Oki Islands.