Gotion Unveils 5 MW/18.8 MWh Grid Gen2 BESS — World's First 'Three-Phase One-Cabin' High-Voltage Cascaded Architecture Certified 'International Leading'

Chinese battery and storage manufacturer Gotion High-Tech announced on April 30 that its Gotion Grid Gen2 utility-scale battery energy storage system — a 5 MW/18.8 MWh unit housed in a single cabin — has passed a formal scientific and technological achievement appraisal, receiving an 'international leading' designation from a panel of independent evaluators. The system uses a high-voltage cascaded architecture in which multiple battery-inverter units are connected in series, enabling direct connection to medium- or high-voltage networks without a large central transformer, reducing balance-of-plant cost. The 'three-phase, one-cabin' design integrates all three AC phases plus the batteries, inverters, and control systems into a single enclosure — simplifying site installation and reducing commissioning time. With certification complete, the first product in the series has moved from concept to deployment-ready status. Gotion, backed by Volkswagen (which holds ~24% of the company), uses this announcement to strengthen its position in the growing global grid-scale storage market. The 18.8 MWh single-cabin density represents roughly a 25% improvement over prior Gotion container designs. The company is also mass-producing a 5 MWh BESS unit from its German plant, expanding its dual-track manufacturing base.