Load study
We take your load profile, tariff and outage history, then size the system around the payback case.
Product line 05 · project business
High-voltage storage for factories and commercial loads
Liquid-cooled, containerised LiFePO4 systems from 261 kWh to 5 MWh, paired with 100 kW and 125 kW hybrid power conversion. Built for peak shaving, backup power, solar self-consumption and reducing diesel runtime — engineered per project and shipped direct from our factory.
261 kWhentry cabinet, liquid-cooled
522 kWhbattery cabinet, IP54
5 MWh20-ft container system
125 kWhybrid PCS
Two cabinet platforms, one cell standard
Both platforms are built from the same 314 Ah liquid-cooled LFP cell and 1P52S pack, which keeps spares, service training and performance consistent across a site as it grows.
| Parameter | YJC-EES-H-A-125kW/261kWh | YJC-EES-H-R-522kWh |
|---|---|---|
| Rated energy | 261 kWh | 522 kWh |
| Power conversion | 125 kW integrated PCS | Paired PCS (100 / 125 kW hybrid) |
| Rated DC voltage | 832 V | 832 Vdc |
| Rated DC current | 157 A | 150 A (165 A max per cluster) |
| Cell | LFP 314 Ah · 3.2 V · 1004.8 Wh · 2.8–3.6 V | |
| Pack configuration | 1P52S · 166.4 V · 52.25 kWh · 348 ± 2 kg | |
| Max charge / discharge rate | 0.5 C | |
| Thermal management | Liquid cooling | Liquid cooling (chiller, heating optional) |
| Fire protection | Integrated fire suppression in cabinet | Aerosol extinguishing agent · smoke & heat detectors |
| IP rating | Outdoor cabinet | IP54 · corrosion class C4 (C5 optional) |
| Operating temperature | Liquid-cooled operating range | −20 °C to 55 °C |
| Humidity | — | 5% to 95% RH |
| Altitude | — | ≤ 2000 m |
| Communication | CAN / RS485 / Ethernet | |
| Dimensions (W×D×H) | — | 2100 × 1390 × 2380 mm (2622 mm with air outlet mask) |
| Mass | — | < 5400 kg |
| Insulation / withstand | — | ≥ 1000 Ω/V · 3000 VDC, no breakdown |
Full system parameters, single-line diagrams and foundation drawings are issued with the project quotation.
100 kW / 125 kW C&I hybrid inverter
The YJC-EMGS100 / YJC-EMGS125 series handles grid-tied and off-grid operation in one unit, and can work alongside diesel generators and existing solar arrays.
- 3-phase 4-wire output, transformer-free off-grid operation with load
- VSG (Virtual Synchronous Generator) mode for seamless integration with diesel generators and the grid
- Integrated EMS supporting diesel and grid connection, with multiple control strategies
- Flexible DC capacity and input configuration; supports multi-cabinet parallel connection
- Integrated circuit breakers per unit for overall system safety
- IP55-rated — direct outdoor installation
- Islanding protection, reverse polarity protection, insulation monitoring, DC and AC surge protection
- DC short-circuit, AC over-current, AC short-circuit, AC under/over-voltage, residual current detection
Up to 5 MWh in a 20-ft container
For utility-side, industrial park and large commercial sites, the YJC-ESS-H-R-5MWh-PRO delivers a high-voltage containerised system for grid peak cutting, valley filling and power capacity increase.
261 kWhLiquid-cooled cabinet with integrated 125 kW PCS
522 kWhBattery cabinet, IP54, liquid cooling
5 MWh20-ft containerised high-voltage system
100 / 125 kWHybrid inverter, IP55, VSG capable
What a project delivery looks like
Engineering
Single-line diagram, foundation drawing and cabinet layout issued for your electrical team to review.
Factory build & test
Built and tested at our factory. Internal cabling is pre-connected before shipment; the cabinet ships ready to lift.
Site & commissioning
Cabinet is lifted or forklifted onto a prepared foundation, ~300 mm above grade, then commissioned with our engineers.
Bring us a load profile
Send 12 months of electricity bills, a load curve if you have one, and your outage experience. We'll come back with a system size, an indicative payback and a delivery schedule.