CATL Xiamen Energy Storage Validation Institute Launches 2026

XIAMEN, China – May 29, 2026 — CATL has officially opened the CATL Xiamen Energy Storage Validation Institute (ESVL), the world’s largest and most comprehensive one-stop testing and validation platform for battery energy storage systems (BESS).

The launch marks a significant milestone in the global energy storage sector, shifting the industry from traditional component testing to advanced station-level, real-world validation. Located in Xiamen, the facility aims to bridge the gap between installed capacity and actual performance as energy storage scales into the gigawatt era.

By providing credible, independent data on safety, grid support, and long-term reliability, the CATL Xiamen Energy Storage Validation Institute is expected to accelerate project deployment, reduce risks, and increase investor confidence in BESS projects worldwide.

Why Real-World Validation Matters for Energy Storage

The rapid growth of renewable energy has driven massive deployment of battery energy storage systems. However, a clear performance gap has emerged.

Nearly one in five large-scale energy storage power stations worldwide are underperforming, while 46.5% of systems face grid-connection delays of more than two months. Most existing validation remains limited to component- or simulated-scenario testing, leaving operators exposed to real-world risks after deployment.

The CATL Xiamen Energy Storage Validation Institute addresses this challenge by moving validation upstream to full-system and station-level testing under conditions that closely mirror demanding grid operations. This approach improves safety, grid-forming capabilities, and long-term reliability before equipment reaches project sites.

Inside CATL’s Xiamen ESVL – Key Features and Global Firsts

Massive Scale and Investment

The institute spans 10 hectares and represents an investment of approximately RMB 3 billion (around $440 million). Designed as an open platform, ESVL is accessible to all players in the global energy storage industry and collaborates with leading certification bodies including TÜV SÜD, TÜV Rheinland, CGC, and CSA.

Five Cutting-Edge Laboratories

• Station-Level Grid Integration Laboratory: Features the world’s largest 35kV/100MVA grid simulator — 14 times bigger than NREL’s platform. It can test over 10 large-scale containers simultaneously, simulate 1,000-node grid topologies, and support frequencies from 15 Hz to 60 Hz. This lab validates grid-forming capability and multi-unit coordination.
• High-Voltage Safety Laboratory: Covers 1kV to 500kV, enabling root-cause analysis of fire and explosion risks through lightning impulse, withstand voltage, and partial discharge testing.

• Thermal Safety and Combustion Laboratory: The world’s first large indoor combustion facility with a 20MW calorimeter and 100,000 cubic meters of space. It can conduct explosion testing on nine large containers at once, providing vital data for safety spacing and system design.

• Environment Reliability Laboratory: Simulates extreme conditions from -50°C to 100°C, high-altitude pressure up to 7,200 meters, salt spray, rain, and sand. This helps verify long-term performance in harsh environments.

• Electromagnetic Compatibility (EMC) Laboratory: The world’s only facility capable of testing a full 40-foot container under real high-power charge and discharge conditions in an anechoic chamber.

Game-Changing Capabilities for the Energy Storage Industry

The CATL Xiamen Energy Storage Validation Institute delivers comprehensive real-world energy storage testing that benefits the entire value chain.

Developers gain faster commissioning and higher confidence in system performance. Regulators receive independent, traceable data for evidence-based decisions. Insurers can price risk more accurately, while financial institutions can view energy storage projects as more bankable assets.

These capabilities are particularly valuable as the industry moves toward complex applications such as grid-forming BESS, renewable integration, and utility-scale projects.

CATL’s Leadership in Energy Storage

CATL’s launch of this facility builds on a strong track record. The company began developing 100 MWh-class technology in 2016, achieved a breakthrough in long-life zero-degradation batteries in 2020, and deployed a 30 MW/108 MWh station in Jinjiang, China.

CATL has since delivered major international projects, including the Quinbrook project in Australia and large solar-plus-storage initiatives in North America. In 2025, CATL recorded 121 GWh in energy storage battery sales, capturing 30.4% global market share and ranking No. 1 worldwide for five consecutive years.

What This Means for the Global Energy Transition

focusing on rigorous, station-level validation, CATL is building a more trusted. As energy storage becomes critical infrastructure for the clean energy transition, facilities like the CATL Xiamen Energy Storage Validation Institute raise overall industry standards. By focusing on rigorous, station-level validation, CATL is building a more trusted, sustainable ecosystem for BESS validation platforms and real-world energy storage testing.

“Scientific rigor is more critical than ever as energy storage enters the gigawatt era… That means being honest about equipment performance, respectful of grid dynamics, and disciplined in testing results — while raising industry quality standards to the station level and bringing validation forward to the pre-delivery stage. ESVL is designed to reflect that rigor, and to help usher in a more trusted and sustainable era of real-world validation.” — Dr. Wu Kai, Chief Scientist of CATL

“ESVL is open to the global energy storage industry and works with leading certification bodies, including TÜV SÜD, TÜV Rheinland, CGC, and CSA, to provide one-test, multi-witness, globally recognized services….. As energy storage increasingly becomes a critical infrastructure asset, ESVL’s independent, traceable, real-world, validated data can help regulators make evidence-based decisions, insurers price risk more precisely, and financial institutions assess energy storage as a more credible, bankable asset” — Dr. Chen Xiaobo, Head of ESVL

Conclusion

The launch of the CATL Xiamen Energy Storage Validation Institute represents a major step forward for CATL energy storage and the broader industry. It sets a new benchmark for quality, safety, and performance validation at scale.

As the world accelerates its shift to renewable energy, such investments in real-world validation will be essential to unlocking the full potential of battery storage. The facility is expected to play a key role in de-risking projects and supporting faster, safer deployment of BESS globally.