Breakthrough Energy Ventures and SB Energy lead major Series C round, with Evergy Ventures and GC joining earlier investors ESS Inc., a leading manufacturer of safe, low-cost and long-duration energy storage systems, announced that it has secured $30 million in a Series C investment round led by Breakthrough Energy Ventures and SoftBank Group’s SB Energy. The funding group … [Read more...] about ESS Inc. Raises $30 Million From Investor Group to Expand Company and Deploy Next-Generation Flow Battery Energy Storage Systems