Peak Energy shipped out its first sodium-ion battery energy storage system, and the New York-based company says it’s achieved a first in three ways: the US’s first grid-scale sodium-ion battery storage system; the largest sodium-ion phosphate pyrophosphate (NFPP) battery system in the world; and the first megawatt-hour scale battery to run entirely on passive cooling – no fans, pumps, or vents. That’s significant because removing moving parts and ditching active cooling systems eliminates fire r...