Vanadium flow battery cell stacks at VRB Energy's large-scale demonstrator project in Hubei Province, China. Image: VRB Energy.  Thailand-headquartered renewable energy group BCPG will invest US$24 million into vanadium redox flow battery (VRFB) manufacturer VRB Energy, aimed at accelerating VRB’s utility-scale VRFB business. BCPG is active in developing and operating assets across the solar, wind, geo ...