A 1MW battery storage system with as much as 150 hours of storage duration, using an as-yet unrevealed battery chemistry, is being deployed in a pilot by Minnesota electric utility Great River Energy.

Reports of Eos’ aqueous zinc battery being paired with small modular nuclear reactors (SMNRs) in a joint venture (JV) with Holtec appear to have been greatly exaggerated, according to an Eos representative.

Energy-Storage.news editor Andy Colthorpe shares his top takeaways from last week’s Solar Power International convention, incorporating Energy Storage International and hosted this year at the North American Smart Energy Week in Utah.

While lithium-ion is rapidly racing ahead to become the “de facto grid storage solution” and is the most popular technology choice by far, vendors of other types of batteries are also targeting the market, with varying degrees of success.

The latest claimant to the crown of ‘largest flow battery installation in North America and Europe’ has emerged, with the award of a 2MW project in Canada to US manufacturer Vizn Energy.

Energy storage solution provider Eos Energy Storage has announced that it has raised US$23 million in Round C equality financing — which it will use to help its commercial launch of the company’s grid-scale battery technology.