#Germany #Munich #Sodium-ion #CATL #TENER

CATL Pioneers the Future with the Launch of TENER Sodium-Ion Energy Storage System

On June 22, 2026, CATL held a significant launch event in Munich, Germany, unveiling their groundbreaking sodium-ion energy storage system, the TENER. This marks the world's first field-validated sodium-ion storage solution, furthering CATL's commitment to advancing energy independence and sustainability on a global scale.

The TENER System: A Game Changer in Energy Storage

The TENER system has not only reached full commercial maturity in terms of technology and supply chain readiness but is also set to deliver impactful results. CATL forecasts a total shipment of 1 GWh by the end of 2026, with global deliveries commencing in June 2027. This innovative approach focuses on the use of sodium, which is significantly more abundant than lithium, ensuring a steady supply and reducing risks linked to volatile material costs.

William Wu, Director of CATL's Energy Storage Technology Center, emphasized the importance of developing new battery chemistries utilizing abundant resources. He stated, "We believe that sodium and lithium together will underpin the future energy storage system, offering longer lifespan and enhanced safety."

Addressing Current Energy Demands

With the rising demand for renewable energy and the increasing reliance on AI-driven energy solutions, energy storage is shifting from being an auxiliary mechanism to a critical infrastructure component. Traditional lithium-based storage solutions face supply chain challenges due to their concentrated availability and fluctuating prices.

Sodium, on the other hand, is over a thousand times more plentiful, providing better performance under extreme temperatures and greater safety margins. Amanda Xu, CTO of ESS and President of ESS Europe at CATL, noted, "The energy storage industry has moved beyond merely scaling up; success is now defined by the ability to ensure long-term value creation. Our mission with TENER is to foster certainty in energy storage."

Modular Architecture for Flexibility

The TENER Sodium system features a modular architecture capable of offering over 30 MWh of rated capacity. This design brings several benefits:
1. Simplified Project Implementation: Each module weighs about 42 tons, and just 34 units are needed to create a 1 GWh installation.
2. Flexible Configuration Options: Energy and power blocks can be separated, allowing for various storage durations tailored to project requirements (1, 2, 4, 6, and 8 hours).
3. Lower Maintenance Costs: Faulty modules can be isolated and replaced independently, enhancing system availability and minimizing operational costs.

In addition to modular convenience, CATL has implemented a specialized platform for sodium-ion systems emphasizing:

• - Voltage Regulation: A bi-directional voltage regulation system optimizes energy output, enhancing round-trip efficiency (RTE) by nearly 2%. This translates to millions of additional kilowatt-hours generated annually.
• - Battery Management System (BMS): Enhanced tolerances allow a 20% flexibility margin compared to lithium-ion technology, ensuring robust operation safety.
• - Reduced Auxiliary Power Consumption: Innovative airflow design reduces heat generation by about 30%, directly saving operational costs.
• - Lower Noise Levels: Operating at only 65 decibels, TENER Sodium is suitable for closer installations to consumption centers.

Future-Proofing Energy Solutions

What makes the TENER sodium battery system particularly appealing is its compatibility with lithium iron phosphate (LFP) systems, allowing seamless transitions between technologies without extensive redesigns. This adaptability ensures versatility in managing market fluctuations in lithium prices. Furthermore, CATL is prepared for future upgrades to 2,000 V high-voltage systems.

A Decade of Development and Innovation

The development of TENER Sodium is the result of nearly a decade of dedicated research since CATL began sodium-ion battery innovation in 2016, investing approximately €1.2 billion in the process. With over 300 R&D professionals and more than 1,600 patent families, CATL has overcome numerous technical challenges and calibrated its manufacturing processes.

CATL's ambitions include collaborating with system integrators to establish a comprehensive ecosystem for sodium-ion energy storage covering everything from cell R&D to commercial deployment. Their new production capacity in Fuding, China, with an annual output of 40 GWh and the upcoming 160 GWh facility in Jining, showcases their readiness for large-scale deployment.

Conclusion: A Reliable Future in Energy Storage

The announcement of the TENER Sodium system is a significant milestone for energy storage, heralding an era where sodium and lithium synergistically form the backbone of next-generation energy infrastructure. As this system prepares for mass distribution, CATL and its partners are well-positioned to realize a more stable, economical, and sustainable energy future.