October 3, 2019: NEC Energy Solutions and Ambri announced in mid-September they had signed a joint development agreement in which NEC will design and develop an energy storage system based on Ambri’s liquid metal battery technology.
The aim is to build systems using Ambri’s cells that will suit applications with durations of four hours or more, and where a daily full depth of discharge cycling is expected. “These systems will be particularly well suited for shifting large amounts of renewable energy and grid-system peak shaving,” says a NEC official.
NEC says it will employ its AEROS energy storage operating system and controls to optimize system performance of the Ambri-based energy storage systems for NEC customers that could include utilities, independent power producers and project developers.
The development program includes delivery of Ambri cells to NEC in the fourth quarter of 2019.
The agreement calls for NEC’s production of commercial systems at the conclusion of the development program and NEC has committed to a minimum purchase of 200MWh of Ambri cells for these systems.
Ambri says its long duration cells are based on its patented calcium antimony chemistry and can deliver daily 100% depth of discharge cycling for over 20 years, “with negligible degradation at a significantly lower system cost than other battery storage technologies”.
“This chemistry could be a great answer to the energy industry’s need for a low cost, long life storage solution,” said Steve Fludder, CEO of NEC Energy Solutions. “Ambri’s technology has potentially the lowest levelized cost of storage in the industry.”
NEC Energy is a wholly owned subsidiary of NEC Corporation.