From ESS News
Jiangsu Zhongtian Technology Co., Ltd. (ZTT) has recently unveiled its latest innovation—the ENERGRID NA7 liquid-cooled energy storage system with a storage capacity of 7.58 MWh.
The system presented at the 13th Energy Storage International Conference and Expo (ESIE2025) in Beijing earlier this month, is housed within a standard 20-foot shipping container and is designed for a range of applications including shared energy storage and renewable integration.
The ENERGRID NA7 features a string-based liquid cooling system and incorporates ZTT’s self-developed 3S-integrated PCS. It supports 2000 V high-voltage DC input and AC grid connection, integrating a bidirectional DC/AC inverter that condenses the traditional two-to-three-tier energy conversion process into a single step. This streamlined architecture pushes energy conversion efficiency above 99%.
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