EVE Energy Drives Technological Leap in Large-Scale Storage: EVE Energy Launches World’s First Storage System with 628Ah Large Battery Cells – 10 GWh Agreement Signed
Huizhou (China) - The market for large-scale energy storage is developing with high momentum both internationally and domestically. The Chinese company EVE Energy, one of the leading players in stationary large-scale storage batteries, has commissioned the world’s first battery storage system using 628Ah ultra-large battery cells, marking a significant milestone.
From Validation to Grid-Scale: 628Ah Technology in Practical Test
With the commissioning of the two-hour Ruite New Energy Lingshou energy storage system, delivering 200 MW of power and 400 MWh of storage capacity, the performance of the new 628Ah ultra-large battery cells was demonstrated at grid scale for the first time. The project comprises 80 units of the Mr. Giant 5 MWh DC energy storage system and 40 transformer and power conversion cabins.
From the company’s perspective, the commissioning of the battery storage system with the new cells marks the transition from visionary research to large-scale grid validation, thereby laying a solid foundation for the high-quality development of the energy storage industry.
The facility builds on EVE Energy’s industrial value chain, which already enables the mass production of other large battery cells. While more than 1 million large battery cells of various types have been manufactured to date, the new 628Ah cell is still in the early stages of mass production and is now being tested at grid scale.
Technologically, the system integrates safe cell technology and a minimalist system architecture, according to EVE Energy. Stacking processes and high-strength separators enhance safety and positively affect the Levelized Cost of Storage (LCOS). This addresses the core requirements of large energy storage systems: safety, efficiency, and longevity.
In the stationary large-scale storage market, lithium iron phosphate cells in the range of approximately 200 to 300 Ah currently dominate. Industry reports, including those from SolarPower Europe, indicate that while larger cell formats are increasingly discussed and piloted, they have so far only been installed sporadically at an industrial scale. Against this backdrop, the use of 628Ah cells in the 200 MW/400 MWh project represents a significant technological leap toward higher individual cell capacities, aiming to reduce system complexity and potentially lower storage costs.
Strategic Symbiosis: 10 GWh Partnership for Large-Scale Applications In addition to the technological validation of the new battery cell, the signing of the 10 GWh strategic agreement between EVE Energy and Beijing Guowang Technology marks an important step in scaling large batteries. Zheng Malin, CFO of Beijing Guowang Technology, and Liu Hongguang, General Manager Domestic Energy Storage Sales at EVE Energy, confirmed the long-term strategic cooperation.
Zhou Ziguan, Chairman of Beijing Guowang Technology, stated: “The success of the Lingshou project confirms the significant advantages of large battery technology for economic efficiency and grid support.” In the future, the partnership is expected to accelerate the adoption of storage technologies, expand their applications, and promote collaboration along the value chain.
EVE Energy thus positions itself as a leading innovator and system supplier in the energy storage industry. With global manufacturing, international cooperation, and service offerings, the company aims to further consolidate its capabilities in reliable energy storage technology.
Source: IWR Online, 19 Feb 2026
