Lithium-ion will struggle to compete at long durations and its price declines cannot continue forever, said Alan Greenshields, Director EMEA for iron electrolyte flow battery supplier ESS Inc, in a rebuttal to an earlier Energy-storage.news article on the topic.

Long duration energy storage (LDES) technologies may have a difficult time competing with lithium-ion over the next decade as the latter’s cost-competitiveness at longer durations increases, possibly even to 24 hours, according to Haresh Kamath, Electric Power Research Institute (EPRI).

NYSE-listed iron flow battery group ESS Inc is expanding into Europe with its first deployments on the continent later this year.

ron flow battery provider ESS Inc has revealed a US$477 million net loss in 2021, in its first full-year results since becoming a publicly-traded company on the New York Stock Exchange (NYSE). 

ESS Inc, among several companies looking to commercialise a flow battery energy storage technology, has netted US$13 million in a Series B funding round from investors that include global chemical company BASF.