TOKYO, Jul 8, 2021 - (JCN Newswire) - Hitachi, Ltd. (TSE: 6501, "Hitachi"), Sumitomo Mitsui Banking Corporation ("SMBC"), Polskie Sieci Elektroenergetyczne S.A. ("PSE"), Energa Operator S.A. ("EOP") and Energa OZE S.A. ("EOZE") today announced that the Polish-Japanese Smart Grid Demonstration Project in Republic of Poland ("Poland"), which...