It's important sometimes to realise that Energy Storage doesn't just mean batteries. Of course batteries, and Lithium batteries in particular get much of news coverage, perhaps rightly so as so much is happening in that space. But, for large scale storage we need solutions to compete with high impact and high cost solutions like pumped hydro. This certainly looks an interesting development, including a snazzy video to explain how it works.
The LAES process is a large-scale energy storage solution that uses liquid nitrogen (N2) or liquid air as a storage medium. LAES technology can be integrated with 20-200MW plants and can be located directly at the point it is needed, offering a competitive energy storage solution. The technology can also integrate low-grade, industrial waste heat and waste cold to increase the round trip efficiency of the system by co-locating with industrial plants and liquefied natural gas (LNG) terminals. Additionally, and if integrated with renewables, the LAES technology can be zero emission.