CATL sodium-ion Tener specs show how the company is positioning sodium-ion storage for grid-scale use in 2026. CATL launched the system in Germany in June and presented it as a commercially mature product ready for scaled production. Moreover, the company said shipments in China should reach 1GWh by the end of 2026, while global shipping is set to begin in 2027.
This launch matters because CATL is building on the first Tener system it introduced in April 2024. That earlier version used Lithium-ion chemistry and offered 6.25MWh of capacity. CATL also said that first Tener product delivered zero degradation in the first five years of use. Now, with the sodium-ion version, CATL is extending the Tener platform into a chemistry that supports grid resilience, low-temperature operation, and cost-focused deployment.
CATL sodium-ion Tener specs at a glance
The new CATL sodium-ion Tener is a grid-scale battery energy storage system, or BESS. CATL described it as the world’s first real-world validated sodium-ion energy storage solution. Just as importantly, the company said the product has reached commercial maturity. As a result, the launch moves sodium-ion BESS closer to broad utility and commercial deployment.
CATL highlighted several headline points during the launch. First, the company emphasized that the product is ready for scaled production. Second, it projected 1GWh of shipments in China by the end of 2026. Third, it confirmed that global shipments should start in 2027. Together, those figures show that CATL sees the sodium-ion Tener as more than a pilot product.
Why the CATL sodium-ion Tener specs matter
Sodium-ion storage is gaining attention for several practical reasons. For example, sodium is abundant and widely available. In addition, sodium-ion batteries support energy storage growth as power demand rises across grids. This trend is especially relevant as data centres and digital infrastructure increase electricity use and require reliable backup capacity.
Furthermore, sodium-ion systems can perform well in lower temperatures. That feature makes them attractive for colder regions across Europe and other markets. Therefore, CATL’s sodium-ion Tener could appeal to developers and utilities that need flexible storage across a wide range of climates.
CATL sodium-ion Tener specs and commercial timeline
CATL’s timeline is one of the clearest signals from the launch. The company expects shipments in China to reach 1GWh by the end of 2026. After that, CATL plans to begin global shipping in 2027. Consequently, the product appears to be moving quickly from launch stage to large-scale delivery.
The Tener brand already has a market presence because of the 2024 lithium-ion version. That earlier system had a rated capacity of 6.25MWh. By linking the sodium-ion model to the Tener platform, CATL can use a known product family while expanding into a new battery chemistry. In turn, this approach may help customers compare performance, safety features, and use cases across the platform.
Safety and system design in CATL sodium-ion Tener specs
One of the most notable claims tied to the launch was CATL’s reference to “millisecond-level self-healing.” While CATL used the phrase as part of its technical messaging, the broader takeaway is clear. The company is placing strong emphasis on system safety, fast response, and operational stability.
For grid-scale buyers, those qualities matter a great deal. Utilities, developers, and large power users want storage systems that respond quickly and support stable operation over time. Therefore, CATL’s messaging suggests the sodium-ion Tener is designed for demanding energy applications rather than for niche demonstration projects.
How CATL sodium-ion Tener specs fit the storage market
The sodium-ion Tener enters the market as energy storage demand continues to expand. Grids need more flexibility as renewable generation grows. At the same time, operators need storage that can support peak demand, backup power, and system balancing. CATL is clearly aiming this product at that opportunity.
In addition, CATL’s own business results show why this matters. Energy storage generated nearly 20% of CATL’s revenues in the first half of 2026. That share underlines the company’s increasing focus on storage as a major business line. Accordingly, the sodium-ion Tener launch is not an isolated product update. Instead, it forms part of CATL’s broader strategy in utility-scale and commercial energy storage.
Final view on CATL sodium-ion Tener specs
The CATL sodium-ion Tener combines a commercial rollout plan, a clear shipment target, and a strong technical message. CATL introduced the system in Germany in June 2026, projected 1GWh of China shipments by year-end, and set 2027 for global deliveries. Those milestones give the product immediate relevance in the storage sector.
Overall, the CATL sodium-ion Tener specs point to a practical next step for grid-scale battery storage. The product builds on the Tener platform, targets large energy applications, and highlights speed, stability, and commercial readiness. As a result, CATL has positioned its sodium-ion BESS as an important new option for the evolving global storage market.
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