CATL Tener sodium-ion system marks a major step for grid-scale energy storage in 2026. On June 22, 2026, CATL launched the new system in Munich, Germany. The company designed it for large storage projects that need long life, stable output, and strong efficiency. As a result, the launch adds momentum to Sodium-ion Battery adoption in utility and commercial energy storage.
The new Tener Sodium-Ion system combines modular design, long cycle life, and smart controls. Moreover, it offers a rated energy capacity of more than 30MWh. Each module weighs less than 42 tons. Therefore, developers can build a 1GWh site with 34 modules. That compact layout can simplify deployment while supporting high-capacity storage needs.
CATL Tener sodium-ion system features long life
One of the biggest highlights is lifespan. CATL says the system can reach 15,000 cycles at 25b0C. In turn, that supports a service life of 25 to 30 years under a 70% State of Health standard. For project owners, this long operating window can improve lifetime value and reduce replacement frequency.
CATL also focused on performance across different climates. The company uses dipole wide-temperature technology to support reliable operation in both cold and hot conditions. At -20b0C, the system retains more than 92% of its capacity. At 45b0C, it still supports more than 10,000 cycles. Just as important, it does this without extra insulation or forced cooling. Consequently, operators may gain more flexibility when choosing project sites.
CATL Tener sodium-ion system improves safety and efficiency
Safety remains central to grid storage, and CATL placed strong emphasis on it here. According to the company, the system cuts cell expansion force by 40%. It also lowers gas generation by 35%. In addition, the thermal runaway surface temperature stays near 200b0C. CATL says that is about 60% lower than Lithium-ion batteries. The company also states that the system is designed to remain fire- and explosion-proof under extreme conditions.
Efficiency matters just as much in large energy storage projects. CATL says it improved the system with an optimized top-ventilation structure and efficient liquid cooling. Because of that, the self-consumption rate drops from the industry average of 2% to 1%. While that percentage seems small, it can make a meaningful difference over many years of operation and across large project fleets.
CATL also made the system more suitable for use near demand centers. The equipment runs at 65dB, which is 10dB lower than traditional equipment, according to the company. As a result, developers may find it easier to install the system closer to communities or commercial loads.
CATL Tener sodium-ion system adds smart power control
Beyond battery chemistry, CATL developed a proprietary bidirectional voltage control Power Conversion System for the Tener platform. The PCS adapts to the sodium-ion battery range of 1.5V to 3.65V. At the same time, it stabilizes output at 690V. CATL says this setup improves round-trip efficiency by nearly 2%.
The system also includes millisecond-level self-healing capability. If a fault appears, the platform can isolate the problem and restore power to unaffected sections within 350 milliseconds. Therefore, operators can limit downtime and protect energy availability in critical projects.
CATL Tener sodium-ion system rollout and production plans
CATL says it has already built a complete sodium-ion battery supply chain. That includes mass production capabilities for both anode and cathode materials. To support future demand, the company is expanding output with 40GWh of capacity in Fuding. It also plans an additional 160GWh in Jining.
Another key advantage is compatibility. CATL says the Tener Sodium-Ion system works with existing lithium-ion storage platforms. So, customers can integrate it without major redesigns. That can speed up adoption and reduce engineering complexity for new and existing energy storage sites.
CATL plans to begin domestic deliveries in China in September 2026. The company targets 1GWh in shipments by the end of 2026. After that, CATL plans a global rollout in 2027. Taken together, these plans show that CATL sees sodium-ion storage moving from launch stage to large-scale commercial deployment.
Overall, the CATL Tener Sodium-Ion system brings together 15,000-cycle life, 25 to 30 years of durability, more than 30MWh of capacity, and improved efficiency. In addition, it supports broad temperature performance, lower noise, and fast fault recovery. For the energy storage market in 2026, this launch gives utilities and developers a new option for long-life, high-capacity storage.
Disclaimer:
The content presented on this page has not been manually verified by our team.
While we strive to ensure accuracy, we cannot guarantee the validity, completeness,
or timeliness of the information provided. Always consult with appropriate professionals
or sources before making any decisions based on this content.
The image is randomly selected and doesn’t necessarily represent the company or the news above.
