Syntropic, UNIGRID Target 1 GWh of Sodium Batteries by 2027 as Cooling Costs Bite
Updated
Updated · Interesting Engineering · Aug 6
Syntropic, UNIGRID Target 1 GWh of Sodium Batteries by 2027 as Cooling Costs Bite
3 articles · Updated · Interesting Engineering · Aug 6
Summary
North America is the first commercialization target for Syntropic Power and UNIGRID’s sodium chromium oxide battery partnership, with 1 GWh of deployments planned in 2027.
RIT testing found UNIGRID’s 210Ah cells absorb heat while charging, post 97.9% round-trip efficiency, and retain more than 99% capacity after 1,000 full cycles—traits aimed at eliminating active cooling.
Syntropic has already received its first cell shipment and plans to use the chemistry in Tenet wall-mounted systems and GridSpan modular platforms spanning 20-minute to 20-hour discharge durations.
Sodium-ion batteries still made up less than 1% of global production in 2025, but the companies are pitching sodium and chromium as a safer, more abundant alternative to lithium and cobalt for heat-stressed grids.