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HMZ 125kW/261kWh Liquid Cooled C&I Energy Storage System is designed for industrial parks, PV + storage projects, diesel hybrid microgrids, grid support, demand response and backup power applications. With built-in PCS, 261kWh LFP battery capacity, smart liquid cooling, 832V nominal voltage and IP54/IP65 protection, the system delivers stable, efficient and scalable energy storage for commercial and industrial users.
The HMZ 125kW/261kWh Liquid Cooled C&I Energy Storage System is a high-performance commercial and industrial battery energy storage solution designed for medium to large-scale energy applications. With a 125kW rated power output, 261kWh nominal energy capacity, built-in PCS and smart liquid cooling technology, the system is suitable for industrial parks, commercial facilities, PV + storage projects, diesel hybrid microgrids, grid support, demand response and critical backup power.
Built with advanced LFP battery technology, integrated PCS, BMS, EMS, liquid cooling and multi-level protection design, this all-in-one C&I ESS helps customers improve energy efficiency, reduce electricity costs, enhance power reliability and support low-carbon energy operation.
Integrated Design
The system integrates battery modules, PCS, BMS, EMS, liquid cooling and fire protection into one cabinet, reducing installation complexity and project footprint.
Smart Liquid Cooling
PACK-level liquid cooling helps maintain stable battery temperature. The cell temperature difference is controlled within ≤3°C, supporting longer cycle life and stable system performance.
Built-in PCS
The built-in PCS design simplifies system integration and supports faster deployment for C&I energy storage projects.
Flexible Scene Adaptation
The system supports modular parallel connection and can be expanded to MW-level applications. It is compatible with on-grid and off-grid scenarios.
Full-stack Safety Protection
Designed with 5-level electrical protection, compartmentalized fire protection and protection ratings of Cabinet IP54 and Pack IP65, making it suitable for demanding industrial environments.
| Item | HMZ-YL125-261 |
|---|---|
| Product Type | Liquid Cooled C&I Energy Storage System |
| Nominal Energy | 261 kWh |
| Nominal Power | 125 kW |
| Maximum Output Power | 137.5 kVA |
| Battery Technology | LFP Battery |
| Nominal Voltage | 832 V |
| Nominal Voltage Range | 728–936 V |
| Maximum Battery Current | 171 A |
| Maximum AC Output Current | 198.6 A |
| Rated AC Output Current | 180.6 A |
| AC Nominal Voltage | 400 V |
| Access Way | 3P4W |
| Grid Voltage Range | 380/400 Vac (-15% to +15%) |
| Nominal Grid Frequency | 50/60 Hz (47.5–52.5 Hz) |
| Power Factor | >0.99, range -1 to 1 |
| Dimensions | 1130 × 1400 × 2380 mm |
| Weight | ≈2650 kg |
| Cabinet Protection | IP54 |
| Battery Pack Protection | IP65 |
| Relative Humidity | 0–95%, no condensation |
| Ambient Temperature | -20°C to 60°C |
| Max. Altitude | 4000 m, derating above 3000 m |
| Cooling Method | Smart Liquid Cooling |
| Communication Interface | RJ45 / RS485 |
| Cycle Life | 8000 cycles at 25°C, 0.5C, 90% DOD, with ≥80% capacity retention |
The HMZ 125kW/261kWh Liquid Cooled C&I ESS is suitable for:
Compared with air-cooled energy storage systems, liquid-cooled ESS is more suitable for higher power, higher energy density and more demanding operating environments. The 125kW/261kWh liquid cooled C&I energy storage system provides stable battery temperature control, longer service life, better system efficiency and stronger adaptability for industrial and commercial energy projects.
HMZ provides lithium battery and energy storage solutions for residential, commercial and industrial applications, which matches your current website positioning around lithium-ion battery solutions, energy storage systems and commercial use cases
A: This liquid-cooled C&I energy storage system is designed for medium to large commercial and industrial applications, including industrial parks, high-power manufacturing facilities, data centers, hospitals, PV + storage + diesel microgrids, grid support, demand response and critical backup power projects.
A: The system has a 125kW nominal power output and 261kWh nominal energy capacity. It features 832V nominal voltage, 728–936V voltage range, built-in PCS, smart liquid cooling, RJ45/RS485 communication, Cabinet IP54 and Pack IP65 protection.
A: Liquid cooling provides more precise and uniform battery temperature control than air cooling. It helps reduce cell temperature differences, improve system stability, support longer cycle life and maintain reliable performance under high-power, high-cycle or high-temperature operating conditions.
A: The built-in PCS design improves system integration, reduces external equipment requirements, saves installation space and simplifies project deployment. It is especially useful for commercial and industrial projects that require compact design and faster installation.
A: Compared with air-cooled ESS, this liquid-cooled ESS is more suitable for demanding industrial projects. It offers better temperature uniformity, higher power-density potential, longer cycle life support and stronger adaptability for high-temperature, high-cycle and critical power applications.
A: The system is designed for 8000 cycles at 25°C, 0.5C, 90% DOD, with ≥80% capacity retention. Actual cycle life may vary depending on operating temperature, charge and discharge strategy, depth of discharge and maintenance conditions.
A: Yes. This liquid-cooled C&I ESS is suitable for critical power applications such as data centers, hospitals and other facilities that require stable backup power, high system reliability and strong thermal management.
A: Yes. The system can support PV + storage + diesel hybrid microgrid applications. It helps store renewable energy, smooth power output, reduce diesel generator runtime, improve energy reliability and support off-grid or weak-grid energy supply.
A: The system provides Cabinet IP54 and Battery Pack IP65 protection. It also supports multi-level electrical protection and compartmentalized fire protection design, making it suitable for demanding commercial and industrial environments.
A: Yes. The system supports modular parallel connection and can be expanded according to project requirements. For larger C&I or MW-level energy storage projects, multiple units can be configured based on load demand, backup time and site conditions.
A: Please provide your project type, installation location, grid condition, peak load, daily electricity consumption, required backup time, solar PV capacity, diesel generator information if available, operating temperature range and whether the project is on-grid, off-grid or hybrid.
A: HMZ liquid-cooled C&I ESS integrates LFP battery technology, built-in PCS, EMS, BMS, smart liquid cooling and multi-level protection. It is designed for industrial parks, data centers, hospitals, grid support, demand response and high-demand commercial and industrial energy storage projects.
China Customized Lithium Ion Battery Pack, Home Battery Backup, Portable Power Supply, and Energy Storage System(ESS) specialist, samples available.
We will contact you within 1 working day, please pay attention to the email with the suffix “@hmztechnology.com”.
