YES VIRGINA, THERE IS A LONG-DURATION, GRID-SCALE REDOX FLOW BATTERY SYSTEM

The growing awareness of grid resiliency requirements as well as the impacts of increased renewable penetration (exemplified by CAISO's duck chart) has rapidly given rise to a $1B market for long-duration energy storage systems. Long duration energy storage systems (i.e. high ratio of energy capacity to power capacity) become costly and more difficult to engineer with conventional batteries but are ideally suited for Redox Flow Batteries. EnerVault's Redox Flow Battery systems are one of the safest, most reliable, and most cost effective energy storage systems for long-duration applications because of patented designs that deliver constant power, a service life independent of depth-of-discharge history, and use of environmentally benign and low-cost, iron-chromium chemistry.

This presentation will highlight initial results from commissioning and operation of an EnerVault system dispatchable at 250 kWAC for 4 hours to deliver the full energy rating of 1 megawatt-hour. This system incorporates EnerVault's novel Engineered Cascade™ architecture and is the world's first megawatt-hour iron-chromium redox flow battery suitable for long-duration, grid-scale applications. The U.S. Department of Energy ARRA Storage Demonstration Program, the New York State Energy Research & Development Agency (NYSERDA), and the California Energy Commission (CEC) supported the presented work.

Speaker: Dr. Craig R. Horne, EnerVault Corp.