Cited sources
Last verified 2026-09-25.
- Syntropic Power describes Tenet as a residential battery using sodium-chromium-oxide (NaCrO2, or NCO) sodium-ion cells that contain no lithium, nickel or cobalt, rated at 9.25 kWh and 46.4 V nominal.
- The maker says it is taking distributor, channel and project inquiries for initial US capacity, that Tenet will be sold only through distribution and not direct, and that initial production is overseas with US manufacturing targeted for 2027.
- It cannot be scored yet: the datasheet lists system-level UL 9540A testing, UL 1973 and UL 9540 certification, CE marking and UN 38.3 testing as pending, and no warranty terms or continuous power rating are published (only a 50 A standard charge and a 200 A discharge pulse).
- The datasheet's round-trip efficiency figure of at least 97.9 per cent is a test result for the cell, not a rated value for the complete system, and the 10,000-cycle life figure is listed under cell specifications.
- The maker describes the first release as designed for protected indoor installation, with an all-weather enclosure on its roadmap.
- Syntropic Power: Distributed Solutions (Tenet)https://syntropicpower.com/distributed-solutions/
The maker's product page names Tenet, gives its sodium-chromium-oxide chemistry and 9.25 kWh, 46.4 V nominal rating, and states its sales channel, production plans and certification timing.
- Syntropic Power: Tenet Technical Data Sheet (2026)https://syntropicpower.com/wp-content/uploads/2026/08/Tenet-Technical-Data-Sheet.pdf
The maker's two-page datasheet gives the cell and system specifications, marks the round-trip efficiency result as a cell test, and lists which certifications are complete and which are pending.