
Timothy Hennessy
Energy storage engineer and executive focused on commercializing grid-scale batteries
Portland, Oregon
Summary
Deep technical and patent-driven background in vanadium redox (flow) battery technology and long-duration energy storage: Hennessy has authored patents and technical work on vanadium flow battery systems and has publicly discussed commercialization and cost targets for flow batteries while leading companies focused on that technology. justia+2
Seasoned operator and commercial executive in energy storage and renewables: across roles as President & COO of Imergy, CEO of VRB Power Systems, Executive VP at Helios Energy, and a brief CRO role at Nuvve, Hennessy has combined technical leadership with commercial and project-development responsibilities to help move flow-battery and storage projects toward deployment. eepower+2
Engineering education and international experience rooted in South Africa with subsequent U.S. industry leadership: his BSc (Eng) from the University of Natal and MSc Eng from University of the Witwatersrand underpin a multi‑decade career in power engineering, international project development and systems integration. ieee