Syntropic Power and UNIGRID Inc. have formed a strategic partnership to commercialize UNIGRID's sodium chromium oxide (NaCrO2, or NCO) battery technology in North America and to establish a pathway to U.S. production, the companies said in a statement distributed by GlobeNewswire.
The two firms plan to deploy 1 GWh of NCO-based energy storage in 2027, according to the announcement.
Syntropic will lead system development, certification, U.S. module assembly and integration, with a stated priority on establishing a non-FEOC-aligned supply pathway by the end of 2027. The term refers to sourcing that avoids foreign entities of concern, a qualification that governs eligibility under U.S. clean energy tax credit rules.
On cell performance, the companies cited independent testing at RIT of UNIGRID's 210Ah NCO cells. That testing measured 216-218Ah of discharge capacity against the 210Ah nameplate rating, cell-level round-trip energy efficiency of at least 97.9%, and 2.3% capacity loss between the C/10 and 1C discharge rates.
UNIGRID's own cycle life testing at full depth of discharge has passed 1,000 cycles with more than 99% of capacity retained, the release said.
Sodium-ion chemistry competes with lithium iron phosphate on the basis of raw material availability rather than energy density, and the supply-chain framing in the announcement is explicit: the partnership pairs a domestic assembly and certification role with a deployment target and a dated sourcing milestone. The 1 GWh figure is a plan rather than a contracted order book.
Round-trip efficiency and rate performance are the two metrics that determine how a cell behaves in daily-cycling grid applications, where losses compound across thousands of charge and discharge events. The RIT numbers cover cell-level behavior, not full system performance after integration into modules and enclosures.