Serial entrepreneur Throop Wilder spent time in residence at CRV when looking for the next big thing. He was intrigued by the utility-scale battery space, and soon teamed up with veteran battery entrepreneur Dr. Yet-Ming Chiang of A123 fame and MIT Professor W. Craig Carter. Together they conceived a novel technology that combines attributes of rechargeable batteries, fuel cells, and flow batteries to enable scalable, cost-effective, high-energy storage systems for emerging markets. Unfortunately that's all we can tell you right now. Stay tuned for greatness.