World''s largest 4.75 GWh sodium battery system set for US grid storage
This single delivery is set to be the largest announced deployment of sodium-ion batteries to date.
Much of the attraction to sodium (Na) batteries as candidates for large-scale energy storage stems from the fact that as the sixth most abundant element in the Earth's crust and the fourth most abundant element in the ocean, it is an inexpensive and globally accessible commodity.
Considering first molten Na batteries, NaS batteries, manufactured by the Japanese company NGK and distributed in collaboration with global chemical manufacturer BASF, has more than 720 MW / 4.9 GWh of deployed storage globally with larger deployments exemplified by a 108 MW / 648 MWh system in Abu Dhabi (United Arab Emirates).
The total contract value could exceed $500 million, representing a notable milestone for the sodium-ion storage sector. The agreement's initial phase stipulates the delivery of approximately 720 MWh of storage capacity in 2027. This single delivery is set to be the largest announced deployment of sodium-ion batteries to date.
Not surprisingly, NAS batteries have been chosen in several recent projects for co-location with hydrogen production. Across the globe, testing and certification of energy storage technologies from cell to system level according to UL9540A and UL1973 standards is becoming crucial for bankability.
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