Published: 6 Apr 2021, 08:35 By: Andy Colthorpe Enerox's Cellcube battery storage paired with solar generation at a commercial and industrial project site. Image: Cellcube-Enerox. South African vanadium producer Bushveld Minerals is investing US$7.5 million in vanadium redox flow battery (VRFB) energy storage company Enerox, which is planning to scale up its manufacturing capabilities. Bushveld is among the consortium, Enerox Holdings Limited, that owns Enerox, which makes and markets its energy storage systems from offices in Austria under the brand name Cellcube. The South African company, which is listed on the London Stock Exchange, said it has already put US$5 million towards Enerox’s US$30 million plan to reach annual production output and sales of 30MW / 120MW - 240MWh by 2022.