CATL has unveiled the TENER Sodium Energy Storage System, the world's first sodium-ion energy storage solution, which is expected to reach 1 GWh in shipments by 2026. The system offers better performance, safety, and cost potential compared to lithium, with modular architecture, configuration flexibility, and lower maintenance costs. CATL has invested heavily in sodium-ion battery R&D, accumulating patents and establishing end-to-end manufacturing processes to support large-scale deployment. The company is set to deliver its first systems in September, with international deliveries starting in June 2027, marking the official entry of sodium-ion energy storage into the GWh-scale deployment era and representing a new stage in energy storage infrastructure for a more stable, cost-effective, and sustainable energy future.