Flux XII Secures $3.95M Seed Round to Accelerate Flow Battery Development

Why It Matters

The infusion of near‑$4 million positions Flux XII to fast‑track deployment of affordable, long‑duration storage, a critical component for stabilizing intermittent renewable power and meeting grid‑baseload needs. It also highlights broader market confidence in organic flow‑battery solutions as a viable alternative to traditional lithium‑ion storage.

Deal Summary

Madison, WI‑based energy storage startup Flux XII announced a $3.95 million seed round led by The Grantham Foundation for the Protection of the Environment, with participation from Wisconsin Alumni Research Foundation, Desai Ventures and gener8tor. The capital will be used to expand operations and accelerate development of its aqueous flow battery materials.