Utility-Scale Vanadium Redox Flow Battery for Distribution Grid Support: System Dynamics and Efficiencies

Research output: NRELPoster

Abstract

Collaboration between National Renewable Energy Laboratory (NREL) and Sumitomo Electric USA. Largest field deployed Vanadium Redox Flow Battery (VRFB) in the United States (2MW/8MWh). Fully characterized the dynamic losses and efficiency. VRFB system efficiency is a nonlinear function of the active power and state of charge of the system. Dynamic efficiency is impacted by three loss vectors: Chemically induced losses; Parasitic loads associated with operating the auxiliary equipment; and Losses associated with the Power Conditioning Systems (PCS).
Original languageAmerican English
StatePublished - 2019

Publication series

NamePresented at the 12th Annual Beyond Lithium-Ion Symposium, 25-27 June, Golden, Colorado

NREL Publication Number

  • NREL/PO-5D00-74248

Keywords

  • distribution
  • efficiency
  • electric grid
  • flow battery
  • vanadium redox

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