Commercial Energy Storage

ESG-E Series | 125kW / 261kWh

ModelESG-E261

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Industrial / Commercial Energy Storage

High-Energy Powerhouse: Single cabinet delivers 125kW output and 261kWh capacity using premium 314Ah cells, expandable up to 2.4MWh.
Precision Liquid Cooling System: Maintains 3-5°C cell temperature difference across the pack, extending cycle life to 8,000+ cycles and maximizing efficiency.
Installation review: the manufacturer describes an integrated battery, PCS and EMS cabinet. Confirm the exact supplied equipment, site connection, handling and commissioning requirements; integration alone does not establish simple installation or reduced project costs.
Published protection reference: the manufacturer lists IP54 and an aerosol fire-extinguishing system. Request the supplied model’s safety documentation and project-specific protection review; these entries do not establish a fireproof or explosion-proof enclosure.
Operating-mode review: the manufacturer lists transfer time of 20ms or less and describes an optional MPPT controller. Confirm the supplied configuration, supported operating modes and connected equipment’s interruption tolerance; these references do not guarantee uninterrupted operation or site approval.
Certified & Reliable: 10-year calendar life design; fully certified to CB, CE EMC, UN38.3, and RoHS international standards.

Rated AC Power	125 kW
Max. DC Power	137 kW / 1 min
Rated AC Voltage / Wiring	400 Vac, 3L+N+PE
Rated Grid Frequency / Range	50/60 Hz
Max. AC Output Current	180 A
AC Voltage Deviation / Harmonic	≤ 5% (linear load) / < 3% (linear load)
Transfer Time	≤ 20 ms
Battery Chemistry / Nominal Capacity	LiFePO4 / 314 Ah
Total Battery Energy / Configuration	261 kWh / 1P260S
Nominal DC Voltage / Operating Range	832 Vdc / 728 Vdc – 936 Vdc
Max. Charging / Discharging Current	140 A / 140 A
Battery Efficiency (DC Side)	> 94%
Battery Cycle Life / Calendar Life	≥ 8000 cycles / 10 years
Cooling Method	Precision Liquid Cooling
Safety & Fire Protection System	Aerosol Fire Extinguishing System
Dimensions (WHD) / Net Weight	1460 * 2203 * 1400 mm / 2750 kg
Ingress Protection Rating	IP54
Operating Ambient Temperature	-20°C to 60°C
Storage Ambient Temperature	-20°C to 45°C
Operating Humidity / Altitude	5%RH – 95%RH / ≤ 3000 m
Communication Interfaces	CAN / RS485
Certifications & Standards	CB, CE EMC, UN38.3, RoHS

Model ESG-11230, ESG-11240, ESG-11250, ESG-11260

Rated On-Grid AC Power: 30 kW / 40 kW / 50 kW / 60 kW
PACK Configuration / Nominal Energy: 1P16S*7 / 112.53 kWh / 1P16S*7 / 112.53 kWh / 1P16S*7 / 112.53 kWh / 1P16S*7 / 112.53 kWh

Model ESP-5010, ESP-4020

Nominal Battery System Voltage: 48 Vdc (51.2Vdc nominal per pack) / 48 Vdc (51.2Vdc nominal per pack)

Model ESG-M261