CATL catapults itself into the document books after unveiling the TENER Stack, the world’s first 9-MWh ultra-large capability power storage system resolution. The corporate revealed the next-gen product at ees Europe 2025.
“CATL has all the time been on the forefront of the power transition,” mentioned Amanda Xu, CTO ESS and president of ESS Europe CATL. “To satisfy the expectation of a BESS system that has excessive power density, small footprint, less complicated AC-side configuration and versatile deployment, we convey the newest CATL TENER power storage resolution. It breaks the constraints of energy capability and product transportation, and makes breakthroughs in house utilization, power effectivity, and price.”
TENER Stack incorporates CATL’s high-energy-density cells with five-year, zero-degradation expertise, reaching a forty five% enchancment in quantity utilization and a 50% improve in projected power density in comparison with typical 20-ft container techniques. The interior capability reaches as much as 9 MWh.
To reinforce compatibility and system effectivity, TENER Stack helps each centralized and string PCS (energy conversion system) architectures. This twin expertise path ensures seamless integration with mainstream AC-side tools and a wider array of grid functions.
The stacked house effectivity of TENER Stack delivers vital financial worth. As an illustration, deploying 800 MWh of storage utilizing TENER Stack requires practically one-third fewer containers than conventional 6-MWh techniques. This reduces the variety of PCS models and hidden prices related to system oversizing, and will increase land-use effectivity by 40%. Total, builders can count on as much as 20% optimization in whole station building prices.
In response to logistical challenges related to transporting containers exceeding 36 tonnes, the authorized threshold in lots of international locations, CATL has developed the “two-in-one” design. Every half-height unit is strictly managed underneath 36 tonnes, making certain compliance with transport laws throughout 99% of worldwide markets. This break up design permits for normal transport strategies, together with customary container spreaders and liners, considerably lowering ready instances and specialised transport prices by as much as 35%. With a decrease heart of gravity and adaptability for peak restricted routes, TENER Stack can simply adapt to distinctive transport situations corresponding to bridges and rural areas, highlighting some great benefits of its modern structural design.
With hearth security underneath world scrutiny, TENER Stack leverages CATL’s strong LFP battery chemistry. Upgraded fuel sensors supply 40% increased sensitivity, triggering suppression techniques 35% quicker. A brand new triple layer insulation design boosts hearth resistance to 2 hours and the system meets IEEE693 seismic requirements, enduring magnitude 9 earthquakes and Class 5 hurricanes. Moreover, an overhead TMS (thermal administration system) design reduces thermal radiation, cuts land and upkeep prices and retains noise to 65dB(A) at 1 m, which is right for city use.
“TENER Stack, large, versatile, dependable and quiet. We aren’t solely delivering an power storage product, however an answer for power accessibility that may be utilized globally,” mentioned Hank Zhao, CTO of ESS Europe CATL. “9 MWh will not be the restrict of the power capability or house. Each breakthrough in power density sooner or later will unleash higher power worth from a smaller footprint.”
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