Huawei Digital Power and TÜV Rheinland have jointly completed ESS safety tests on Huawei’s smart string and grid forming ESS platform (LUNA2000-4472 and LUNA2000-215 series). As a result, Huawei Digital Power has become the first company to receive the world’s highest-level certificate for ESS safety, marking a significant milestone in the industry.


The safety classification comprises three levels:
Level 1 (Basic): The ESS complies with basic laws, regulations and standards, meeting the safety requirements for market admission.
Level 2 (Plus): The ESS provides enhanced mechanical, electrical, thermal and environmental protection, preventing fires caused by thermal runaway at the battery pack level.
Level 3 (Prime): The ESS prevents pack-level thermal runaway from spreading, even in extreme scenarios where a fire is caused by external factors, ensuring personnel safety.

Zhou Tao, president of the Smart PV & ESS Product Line at Huawei Digital Power, expressed his thanks to TÜV Rheinland for awarding the company with the industry’s first highest-level safety certificate, the certification recognising its technical innovations and commitment to advancing the high-quality development of the PV and energy storage industries. Moving forward, the company will continue to collaborate with TÜV Rheinland to implement higher safety standards in the energy storage industry and facilitate its high-quality development.

ESS safety is the foundation for the sustainable and high-quality growth of the renewable energy industry. To achieve this, Huawei Digital Power has invested heavily in the quality and safety fields. By upgrading the traditional container-level thermal runaway control to the pack-level thermal runaway control, the company has raised the bar for ESS safety, providing higher-level protection.