VRB Energy breaks ground on 100MW / 500MWh flow battery and gigafactory ...
Flow battery cell stacks at VRB Energy''s demonstration project in Hubei, China. Image: VRB Energy. An official ceremony was held in Hubei Province, China, as work began on the first phase of a 100MW / 500MWh vanadium redox flow battery (VRFB) system which will be paired with a gigawatt of wind power and solar PV generation.