The construction of the GigaBattery Boxberg 400 large-scale battery energy storage system has officially commenced following a groundbreaking ceremony. Boasting a capacity of 400 MW/1,600 MWh, the landmark project is situated at the Boxberg power plant site in Saxony, Germany.

As a key component of LEAG’s GigawattFactory initiative, the new battery storage facility complements the group’s broader clean energy layout. The GigawattFactory project integrates a portfolio of large-scale photovoltaic plants, wind farms and battery energy storage systems to accelerate local energy transition. LEAG repurposed a six-hectare remediated plot from the former Plant II site for the construction, realizing efficient reuse of industrial land resources.

The project is jointly developed by three main contractors: LEAG Clean Power, Siemens Energy, and Hyperstrong International (Germany), a subsidiary of Beijing Hyperstrong Technology. 

Under the cooperation framework, Hyperstrong International will undertake core work including the supply of lithium iron phosphate batteries, electrical system integration and overall construction of the storage station. The project will adopt the self-developed HyperBlock III storage system, which is specially tailored for large-scale power plant-level energy storage scenarios, ensuring high efficiency and reliability of grid-side energy storage operation.

In tandem with the battery storage construction, Siemens Energy will build a new 380 kV gas-insulated switchgear (GIS) system. The new grid infrastructure will enable stable connection to the 50Hertz transmission grid, while effectively linking surrounding renewable power generation resources at the Boxberg site with the energy storage system. 

This configuration facilitates efficient consumption, peak shaving and grid stabilization of local wind and solar power, laying a solid foundation for the large-scale integration of renewable energy in the region.