World’s First! 400MWh Independent Energy Storage Plant with 628Ah Large-Capacity Battery Successfully Connected to the Grid!

2025-09-25 | Calvin

On September 8, the world’s first 400MWh energy storage plant powered by a 628Ah large-capacity battery was successfully connected to the grid in one go.

As a pioneer and practitioner in large-capacity energy storage battery technology, EVE Energy has once again set a new industry record after being the first to release and mass-produce the 628Ah battery. On September 8, at the Ruite New Energy Project in Lingshou County, the world’s first 400MWh energy storage plant based on the 628Ah battery was successfully energized in a single attempt. This milestone marks EVE Energy’s leadership in delivering the full cycle of technology release, mass production, and engineering application, helping the energy storage industry enter a new era of high-quality development driven by technological innovation.

Breaking Barriers: Large-Capacity Energy Storage Batteries Open a New Chapter of Scaled Applications

With the global energy structure undergoing rapid transformation, energy storage applications are advancing quickly toward large-scale commercialization. Achieving storage battery capacities exceeding 600Ah has become a core pathway for the industry to increase system energy density, reduce lifecycle costs, and enhance safety and reliability.

On September 8, the 200MW/400MWh independent energy storage project in Lingshou—jointly developed by EVE Energy and Beijing State Grid Power Technology Co., Ltd.—was successfully connected to the grid. This marks the first large-scale application of the 628Ah storage battery in a gigawatt-hour level power station worldwide, signaling its official entry into commercial use and setting a new benchmark for the industry.

In just one week, EVE Energy completed the delivery and successful energization of 80 Mr. Giant 5MWh storage DC systems equipped with 628Ah batteries, along with 40 integrated boost and conversion cabins. This achievement demonstrates the company’s outstanding comprehensive delivery capability in large-scale storage projects. From quality control to engineering coordination, system commissioning to operational support, EVE Energy has once again proven the maturity and feasibility of its large-capacity battery technology and products.

As the world’s first gigawatt-hour level power station utilizing large-capacity storage batteries in actual operation, the project will provide a critical reference for the large-scale application of new energy storage. It will significantly enhance local grid peak-shaving and frequency regulation capabilities, improve power supply reliability, boost renewable energy integration, and support Hebei Province in optimizing its energy structure and advancing its “dual-carbon” goals.

Sailing Overseas: First Shipment of Mr. Giant, Large-Capacity Cells Enter the Global Market

Going Global! On September 10, the first batch of 5MWh Mr. Giant storage DC systems equipped with 628Ah batteries was shipped overseas to Australia and Europe. With advantages including minimalist design, efficient integration, and eco-friendly operation (noise levels as low as 65dB), the Mr. Giant system precisely meets long-duration storage needs of four hours and beyond, and has already gained recognition in international markets. This milestone marks the official beginning of the global application era for large-capacity storage batteries and systems.

From the successful grid connection of the first 400MWh storage project to the overseas deployment of the first batch of DC systems, EVE Energy has achieved a leap from product leadership to market application with the 628Ah storage battery, propelling the energy storage industry into a new era of higher efficiency, lower costs, and greater reliability.

Large-capacity energy storage batteries—EVE is more reliable. Looking ahead, EVE Energy will continue to uphold its dual strategy of technology-driven and manufacturing leadership, joining hands with global partners to embrace a greener energy future.