From pv journal ESS News web site
BASF Stationary Energy Storage, a subsidiary of chemical firm BASF, and Japanese ceramics producer NGK Insulators have launched a brand new model of their sodium-sulfur (NAS) batteries.
The containerized NAS Model L24 battery collectively developed by the companions, whose cooperation started in 2019, has some technological enhancements. Compared to beforehand obtainable battery sorts, the brand new NAS battery is characterised by a considerably decrease fee of decay of lower than 1% per 12 months due to lowered corrosion of the battery cells.
Another technical achievement is an improved thermal administration system of the battery modules, which permits a better steady discharge. For instance, within the case of discharging 200 kW-dc per NAS Model L24 unit, the continual discharge period is six hours.
New technological parts are integrated into the field-proven battery design. In different phrases, NAS batteries have been carried out nearly for the primary time on the earth by NGK and since then have been put in in additional than 250 places worldwide, with a complete output of greater than 720 MW and a complete -the capability of about 5 GWh put in.
Like the earlier model, the brand new idea complies with the newest security requirements for power storage installations, comparable to UL1973 and UL9540A.
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