GoodWe launches 125 kW/261 kWh all-in-one C&I battery

China’s GoodWe has launched a new fully integrated all-in-one liquid cooled energy storage solution based on lithium iron phosphate (LFP) chemistry and designed for commercial and industrial (C&I) applications.

The new ESA Series 125kW/261kWh can cover a wide spectrum of use cases in factories, farms, EV charging stations, commercial complexes, and other grid-connected or off-grid applications, according to the manufacturer.

The system integrates a power conversion system (PCS), energy management system (EMS), and battery management system (BMS) within a single cabinet. Such architecture streamlines installation, operation, and maintenance while supporting flexible capacity scaling.

The new ESA Series product can be scaled from hundreds of kilowatt-hours to multi-megawatt-hours, supporting up to 15 units in parallel with a total capacity reaching up to 1.87 MW/3.91 MWh in on-grid configurations.

The system weighs 2580 kilogram and comes with a compact footprint of 1.47 square meters, offering an energy density of 177.6 kWh per square meter. It incorporates 314 Ah LFP cells, modules with 52.25 kWh nominal energy and five packs.

It has an operating voltage range from 676 to 936 V and support a maximum charge/discharge current of 188 A.

Its hybrid cooling approach combines air cooling at the PCS level with smart liquid cooling for the battery modules, all within an
IP54-rated enclosure suitable for outdoor environments. The maximum PCS efficiency reaches 98.6% and system efficiency stands at 92%.

The new product supports 6,000 charge-discharge cycles and has an operating temperature range of -25°C to 55°C. It supports parallel operation with grid-tied inverters for adaptable C&I deployments. Additionally, when paired with the upcoming GoodWe STS Box, it
can operate in off-grid mode with grid-forming capability and virtual synchronous generator (VSG) functionality.

The ESA 125kW/261kWh was tested using UL 9540A methodology, meeting the strictest standards regarding safety requirements for installation, fire prevention and emergency response. The product features a six-layer protection strategy from the cell to system level, combining active and passive measures for fire prevention and suppression. Aerosol-based firefighting modules are integrated in the battery packs as well as the cabinet, which is also equipped with smoke detectors, thermal sensors, and combustible gas detection.

The product also features pack-level humidity monitoring with automatic dehumidification, enhancing reliability and operational security. In addition, the ESA 125kW/261kWh has been certified by TÜV Rheinland for its comprehensive environmental adaptability, confirming the products reliability across multiple environmental domains in climatic, mechanical, chemical, electromagnetic, and specialized scenarios.

The ESA system supports diverse operating modes, including peak shaving, demand control, participation in energy trading, and off-grid backup power.

Early commercial deployments in China have already reported reductions in power costs and accelerated returns on investment. At GoodWe’s Guangde manufacturing site, nine ESA 125 kW/261 kWh cabinets were installed in parallel, setting a new benchmark for large-scale C&I storage deployment in Chinese factories.

Another project in De’an, China, designed specifically for the heavy-duty truck industry, features seven ESA cabinets with a combined storage capacity of 875 kW/1,827 kWh. The project was billed as the country’s first charging station project integrating wind, solar, and energy storage.