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All-in-one Cabinet
The B261LP-2H is an integrated liquid-cooled PV-plus energy storage All-in-one Cabinet that combines lithium battery modules, a fire suppression system (FSS), and an embedded EMS into a single compact unit. Its integrated design simplifies system architecture and installation, while the modular structure allows flexible capacity expansion as project requirements grow. When used with a hybrid inverter and intelligent energy management, the cabinet supports multiple operating modes, enabling efficient coordination between PV generation, energy storage, and load demand.
Features
Higher Space Utilization
Safe & Reliable
IP55, optimized ventilation design, temperature di-erence within 3°C.
Expandable & Modular
Easy modular design supports parallel connection for convenient system expansion.
Versatile
Support multiple brands of hybrid inverter, with higher selectivity.
Technical Specifications Matrix
| Battery Cabinet | |
| Cell Type | LFP /314 Ah |
| Pack Configuration | 52.25 kWh / 1PS2S |
| System Configuration | 261 kWh / 1P260S |
| Rated DC Voltage | 832 V |
| DC Voltage Range | 728 ~ 936 V |
| Max. Charge/Discharge Rate | 0.5 P |
| Max. Depth of Discharge | 100% (25 ± 2 °C) |
| Cycle Life | ≥ 8,000 cycles |
| PV Input | |
| Max. input power | 150kW 160kW 200kW 200kW 250kW |
| PV Voltage Range | 150~950V |
| MPPT | 10 |
| Max. input Current | 42A*10 |
| AC Side | |
| Max. input power | 75kW 80kW 99.9kW 100kW 125kW |
| Rated AC Voltage | 400 V |
| Rated AC Voltage | ±15% |
| Rated Frequency | 50 Hz / 60 Hz |
| General | |
| Ingress Rating | IP55 |
| Cooling | Forced air cooling |
| Humidity | 0~95% RH (non-condensing) |
| Altitude | 3000m (Derating above 2000m) |
| Dimensions (W*D*H) | 1,050*1,350*2,100 mm (Foundation) 1,850*1,350*2,100 (Entire) |
| Weight | 2,600 kg |
| Safety/EMC | UN38.3, IEC62619, IEC63056, IEC62477-1, IEC61000-6-2/4 |
Maximizing Energy Yield with High PV Utilization Capability
For commercial and industrial (C&I) solar projects, maximizing energy yield across complex or constrained roof spaces is a primary engineering challenge. Distributed solar arrays often suffer from shading, varied tilt angles, or multiple orientations, which can lead to significant mismatch losses in traditional centralized inverter setups.
To address this, the All-in-one cabinet features a high PV utilization capability driven by an integrated multi-string hybrid inverter platform. Equipped with 10 independent Maximum Power Point Trackers (MPPTs) and a wide operating voltage range of 150V to 950V, the system dynamically optimizes the power output of each solar string independently.
By supporting up to 250 kW of direct PV input power, this flexible design allows system integrators and EPC contractors to design highly efficient solar arrays without the need for excessive external balancing equipment. The multi-channel MPPT architecture ensures that power loss from localized shading or dust accumulation on a single string does not compromise the performance of the entire system, resulting in a more predictable and elevated level of energy generation over the lifetime of the asset.
FAQ
Q: What is the specific cooling medium used in your liquid cooling system, and how is the risk of coolant leakage managed?
A: Our system utilizes a specialized water-glycol mixture optimized for precise thermal conductivity and anti-freezing properties. To mitigate leakage risks, the internal piping employs automotive-grade, anti-corrosive rigid connections and double-sealed joints.
Q: Can the inverter handle bi-directional power flow simultaneously-such as charging the battery from the grid while routing PV power to local loads?
A: Yes. The integrated multi-string hybrid inverter platform supports intelligent, multi-directional energy pathways. It can dynamically manage power routing.
Q: The unit is rated IP55. How does the liquid cooling topology maintain this rating without drawing in external dust or moisture?
A: The battery compartment of the All-in-one cabinet is completely isolated from the external environment in a sealed. The liquid cooling loop functions as a closed heat-exchange system, transferring heat from the internal plates to an external liquid-to-air radiator.
Q: Does the cabinet ship fully assembled with the battery packs pre-installed, or must they be populated on-site?
A: To minimize on-site labor errors and guarantee factory-level sealing, the All-in-one cabinet is shipped completely assembled, pre-wired, and fluid-charged with its internal liquid-cooling medium.
Q: What is the maximum number of cabinets that can be parallel-connected on the AC side?
A: The system supports parallel configuration on the AC side to scale up to multi-megawatt configurations. Load-sharing and state-of-charge (SOC) balancing among parallel cabinets are managed via a master-slave control architecture over a high-speed CAN/Ethernet bus, preventing circulating currents and ensuring uniform battery aging across all units.
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