KRL-B522L-250kW-522kWh
The KRL-B522L is a heavy-duty 250kW/522kWh Liquid-Cooled Energy Storage System, built specifically to power large-scale industrial loads. Acting as a standalone micro-grid powerhouse, it features a massive 240kW MPPT capability to harness immense solar energy. Driven by our proprietary liquid-cooling technology and an automated fire suppression system, it guarantees uncompromising safety. With its sub-10ms zero-downtime switchover, it comprehensively protects continuous production lines. Pre-assembled and tested in our source factory, this massive yet highly integrated cabinet eliminates complex onsite engineering, delivering true plug-and-play energy independence for global mining sites and large factories.
| Model | KRL-B522L-250H3S-240M2-HX1 |
| Battery | |
| Battery Type | LiFePO4 Battery |
| Rated Energy | 522kWh |
| Nominal Voltage | 832V |
| Rated Capacity | 628Ah |
| PV | |
| Max. Power | 240KW |
| Max. PV Voltage | 950Vdc |
| MPPT Voltage Range | 250~850Vdc |
| Max. PV Input Current | 200A+200A |
| MPPT Channels | 2 |
| AC(On-grid) | |
| Rated Power | 250kW |
| AC Voltage | 400Vac/230Vac(L1/L2/L3/N/PE) |
| Rated Frequency | 50Hz/60Hz |
| Max. AC Current | 375A |
| AC(Off-grid) | |
| Rated Power | 250kW |
| AC Voltage | 400Vac/230Vac(L1/L2/L3/N/PE) |
| Rated Frequency | 50Hz/60Hz |
| Max. AC Current | 375A |
| Switching Time | <10ms |
| Parallel Number | 6 |
| General Parameter | |
| Diesel Generator Port | Yes |
| Communication Type | RS485/WiFi |
| IP Grade | IP65(Battery) |
| Fire Protection System | Yes |
| Operating Temperature | -10°C~55°C |
| Humidity Range | 5%~95% |
| Altitude | <2000m |
| Battery Cooling Method | Liquid cooling |
| PCS Cooling Method | Intelligent cooling |
| Size(mm) | 2480*1400*2050mm |
| Weight(kg) | 4900kg(about) |
KRL-B522L Applications & Solutions

Mountainous areas and islands
For remote islands or isolated mining sites with immense energy needs, the KRL-B522L acts as a standalone powerhouse. Featuring a massive 240kW MPPT capability, it harnesses tremendous amounts of solar energy during the day. This true plug-and-play system completely replaces mega-diesel generators, delivering robust, grid-forming energy independence to entire off-grid communities and heavy extraction operations.

Gas station
Modern gas stations are evolving into high-demand energy hubs with multiple EV fast-charging stations. The KRL-B522L provides the immense power required to support these concurrent heavy loads. Driven by proprietary liquid-cooling and an automated fire suppression system, it guarantees absolute safety in highly flammable environments while ensuring payment and pumping systems never go offline.

Disaster emergency power supply
When a major disaster strikes, temporary hospitals and large-scale rescue command centers require massive, immediate power. Despite its immense 522kWh capacity, the KRL-B522L is pre-assembled and tested in our source factory, eliminating complex onsite engineering. It can be deployed as a heavy-duty, plug-and-play emergency vault, bringing life-saving electricity to devastated regions with zero delay.

Factory power supply
A single power dip can ruin an entire batch of materials in heavy manufacturing. The KRL-B522L is built specifically to power large-scale industrial loads. With its sub-10ms zero-downtime switchover, it comprehensively protects continuous production lines, massive CNC machinery, and critical industrial parks from grid instability, while effectively reducing peak-hour electricity costs.

Supermarket Power Supply
Mega-malls and massive retail centers consume vast amounts of electricity for commercial HVAC and extensive cold-chain storage. The KRL-B522L’s massive 522kWh capacity ensures long-lasting backup power for large-scale inventory protection. Its uncompromising safety architecture allows it to be safely deployed in densely populated commercial zones without risk.

PV power generation
To maximize the ROI of extensive utility-scale solar farms, the KRL-B522L perfectly synergizes with huge PV arrays. Its massive 240kW MPPT rapidly captures peak solar generation, while the advanced liquid-cooling technology ensures the 522kWh battery pack operates at maximum efficiency and lifespan, safely storing immense solar energy for nighttime grid dispatch.
Engineered for massive scale and extreme industrial demands, the heavy-duty KRL-B522L 250kW/522kWh Liquid-Cooled ESS is the ultimate standalone micro-grid powerhouse. Driven by our proprietary liquid-cooling technology and an automated fire suppression system, it guarantees uncompromising safety for the world’s most critical loads. With a massive 240kW MPPT capability to harness immense solar energy and sub-10ms zero-downtime switchover, it comprehensively protects continuous production lines. Pre-assembled and tested in our National High-Tech Enterprise source factory, this highly integrated cabinet eliminates complex onsite engineering, delivering true plug-and-play energy independence tailored for your mega-projects.
