Model |
ECO-B261LP-2H |
Nominal Energy |
≥52.24kWh |
Nominal Voltage |
DC 166.4V |
Cell Capacity |
LFP314Ah |
Recommended Voltage Range |
DC145.6～187.2V |
Number of Cells |
52 |
Cell Configuration |
1P × 52 ≠ 1P52S |
Charge/Discharge Rate |
0.5P |
Maximum Cell Charging Voltage |
187.2V |
Minimum Cell Module Voltage |
145.6V |
Cell Module Discharge Depth |
95% DOD |
Charging Temperature |
5～50℃ |
Discharging Temperature |
-10～55℃ |
Recommended Working Temperature Range |
15～35℃ |
Storage Temperature Range |
-25～55℃ |
Communication Method |
CAN |
Protection Level |
IP65 |
Cooling Method |
Liquid Cooling |
Dimensions (W × D × H) |
800×1135×248 mm |
Weight |
Approx. 352 kg |
Storage Humidity |
＜75%RH, Without Condensation |
Applicable System Voltage Level |
≤1500V DC |
ALL-IN-ONE ESS CABINET > LIQUID-COOLED HYBRID
Liquid-Cooled Hybrid ESS Cabinet for High-PV C&I Storage Projects
SUNPAL ESS liquid-cooled hybrid cabinet integrates LiFePO4 battery storage, hybrid inverter, BMS, EMS, liquid cooling and PV input in one outdoor-ready system. With 261 kWh capacity, 125 kW output and up to 250 kW PV input, it is built for C&I solar-plus-storage projects that need higher PV self-consumption, peak shaving, backup power and smart energy cost control.
-
1 Model
Available
-
261 kWh
Battery Capacity
-
125 kW
Output Power
-
250 kW
Max. PV Input
-
8,000+
Cycle Life
-
IP55
Outdoor Protection
ECO-B261LP-2H
LiPal Hybrid ECO-B261LP-2H
-
261 kWh
Battery Capacity
-
125 kW
Output Power
-
8,000+
Cycle Life
LIQUID-COOLED HYBRID CABINET
LIPAL HYBRID SERIES
UN38.3
IEC62619
IEC63056
G99
VDE4105
NRS097
C10/11
[ SYSTEM ARCHITECTURE ]
Typical Liquid-Cooled Hybrid ESS Connection Diagram
The Liquid-cooled Hybrid Cabinet integrates PV input, LiFePO4 battery storage, hybrid inverter, EMS and grid connection to support C&I solar-plus-storage, peak shaving, backup power and smart energy management.
Solar + Storage
Industrial Facilities
Commercial Buildings
EV Charging
Microgrids
Backup Power
[ TECHNICAL PRINCIPLES ]
Why Choose a Liquid-Cooled Hybrid ESS Cabinet?
PV-Integrated Hybrid Storage with Precision Liquid Cooling
SUNPAL ESS liquid-cooled hybrid cabinet combines LiFePO4 battery storage, hybrid inverter, PV input, BMS, EMS and liquid cooling in one outdoor-ready C&I energy storage system. Liquid cooling helps maintain stable battery temperatures during high-cycle operation, while the integrated hybrid power conversion system supports direct PV charging, battery discharge, grid interaction and backup power for commercial solar-plus-storage projects.
[ DIGITAL ENERGY MANAGEMENT ]
3S Smart Control for Liquid-Cooled Hybrid ESS Cabinets
The BMS, EMS and hybrid PCS work together to monitor every battery cell, manage PV charging, control battery discharge and support grid interaction in one liquid-cooled hybrid ESS cabinet. Built for C&I solar-plus-storage projects, the system improves safety, energy efficiency, remote O&M and long-term operating reliability.
[ PRODUCT COMPOSITION ]
Core Components of Liquid-Cooled Hybrid ESS Cabinets
SUNPAL ESS liquid-cooled hybrid ESS cabinets combine LiFePO4 battery packs, high-voltage protection, hybrid inverter and liquid cooling in one C&I solar-plus-storage system. Each component is engineered to support PV input, battery storage, grid interaction, peak shaving and reliable outdoor operation for commercial and industrial energy storage projects.
Battery Pack
HV Box
Liquid Cooling Chiller
Hybrid Inverter
Liquid-Cooled LiFePO4 Battery Pack
Built with 314 Ah LFP cells, the modular battery pack delivers high energy density, long cycle life and stable daily charge-discharge performance. Liquid cooling improves temperature consistency, while CAN communication supports accurate battery monitoring and system-level energy management.
View Details →
High-Voltage Control Box
The high-voltage box manages DC power distribution, electrical protection and communication between the battery packs, BMS and hybrid inverter. It helps maintain safe power transmission and stable operation in liquid-cooled C&I battery energy storage systems.
View Details →
Intelligent Liquid Cooling System
The liquid cooling chiller circulates coolant through battery modules to reduce thermal stress and maintain consistent operating temperatures. It supports reliable high-cycle operation, better battery consistency and lower lifecycle risk for outdoor commercial energy storage projects.
View Details →
Hybrid Power Conversion System
The integrated hybrid inverter coordinates PV input, battery charging, grid connection and AC load output in one system. It enables direct solar energy storage, peak shaving, backup power and flexible energy dispatch for C&I solar-plus-storage projects.
View Details →
Model |
ECO-B261LP-2H |
Rated operating voltage |
DC832V |
Rated operating current |
250A |
Power supply input |
AC220V |
Dimensions |
800×843×201mm |
Operating temperature |
-25~55°C |
Operating humidity |
≤95%RH , no condensation |
Communication interface |
CAN 、 LAN |
Protection level |
IP20 |
Product weight |
Approx. 60kg |
ECO-B261LP-2H |
|
245 × 700 × 900 mm |
|
100 kg |
|
Drawer-Type |
|
Outdoor |
|
SAE18 Quick Connector |
|
-30°C to +55°C |
|
-40°C to +70°C |
|
70 dB(A) |
|
75 dB(A) |
|
C3M (Optional C5M) |
|
Outdoor Orange-Texture Finish, RAL 7035 |
|
IPX5; Suitable for Applications Requiring IP55 |
|
R134a |
|
50% Ethylene Glycol Aqueous Solution |
|
Yes |
|
No |
|
10 years |
|
Rear Air Outlet (Optional Top Air Outlet) |
|
5.0 kW |
|
2.0 kW |
|
18°C |
|
10°C to 35°C (Heating Setpoint ≤ Cooling Setpoint) |
|
20°C |
|
15°C |
|
CAN |
|
Inlet/outlet water temperature, inlet/outlet water pressure, ambient temperature, etc. Refer to the communication protocol register map for details. |
|
46.5 L/min |
|
60 kPa |
|
1.85 kW |
|
2.81 kW |
|
2.44 kW |
|
0.24 kW |
|
2.95 kW |
|
3.32 kW |
|
220 V, 50/60 Hz ±3% |
|
220 V ±15%, 50/60 Hz ±3% |
|
15.8 A |
|
17.8 A |
[ SAFETY ARCHITECTURE ]
Five-Level Safety Protection for Liquid-Cooled Hybrid ESS Cabinets
SUNPAL ESS liquid-cooled hybrid ESS cabinets are built with a five-level safety architecture for C&I solar-plus-storage projects. From pack-level BMS monitoring to cabinet-level fire suppression and smoke-temperature detection, each protection layer helps reduce battery risk, support stable PV and grid operation, and improve long-term reliability for commercial and industrial energy storage systems.
Pack-Level BMS Protection
The BMS monitors cell voltage, current and temperature in real time, while managing pack balancing and fault protection. It helps prevent overcharge, over-discharge, overheating and abnormal battery operation in high-cycle LiFePO4 energy storage applications.
-
Pack-Level Aerosol Fire Suppression
Each battery pack is equipped with an independent aerosol fire suppression unit, enabling localized response to potential thermal events before they affect neighboring modules or the wider ESS cabinet.
-
Cabinet-Level Aerosol Protection
A secondary aerosol protection layer covers the full cabinet enclosure, adding system-level fire mitigation for liquid-cooled hybrid ESS projects deployed in factories, commercial sites and outdoor energy storage applications.
-
Water-Based Fire Protection
The water fire protection layer provides additional emergency heat control and fire mitigation, supporting safer operation where project developers, distributors or end users require stronger site-level safety design.
-
Smoke & Temperature Detection
High-sensitivity smoke and temperature sensors continuously track internal cabinet conditions. Early alarms allow the BMS and EMS to trigger protective actions quickly, reducing operational risk and simplifying remote O&M.
[ STRATEGIC COMPONENT SUPPLY ]
Trusted Components, Integrated by SUNPAL ESS
From LiFePO4 battery cells and hybrid inverter to electrical protection and liquid cooling, each key component is selected for safe, efficient and reliable C&I energy storage. SUNPAL ESS supports project developers and distributors with factory-integrated hybrid ESS cabinet solutions for solar-plus-storage projects.
[ KNOWLEDGE CENTER ]
Liquid-Cooled Hybrid ESS Cabinet FAQs
Key questions for project developers, distributors and commercial buyers evaluating liquid-cooled hybrid ESS cabinets for C&I solar-plus-storage projects.
-
What is a liquid-cooled hybrid ESS cabinet?
A liquid-cooled hybrid ESS cabinet is an all-in-one battery energy storage system that integrates LiFePO4 batteries, hybrid PCS, BMS, EMS, PV input, liquid cooling and fire protection in one outdoor cabinet. It is designed for C&I solar-plus-storage, peak shaving, PV self-consumption and backup power applications.
-
How is it different from a standard liquid-cooled ESS cabinet?
A standard liquid-cooled ESS cabinet mainly focuses on battery storage and grid-side power conversion, while a liquid-cooled hybrid cabinet adds integrated PV input and hybrid PCS control. This allows solar power, battery storage and grid interaction to be managed in one compact system.
-
Can the liquid-cooled hybrid cabinet connect directly to solar panels?
Yes. The system supports direct PV integration with up to 250 kW PV input and 10 MPPT channels, helping project developers design flexible rooftop PV or ground-mounted solar-plus-storage systems without adding a separate PV inverter in many configurations.
-
What applications is this hybrid ESS cabinet suitable for?
It is suitable for factories, commercial buildings, industrial parks, EV charging stations, microgrid projects and sites with high solar self-consumption needs. Typical operating modes include peak shaving, demand charge reduction, backup power and time-of-use energy optimization.
-
Why does the system use liquid cooling?
Liquid cooling helps maintain more consistent battery temperatures during frequent charge and discharge cycles. This reduces thermal stress, improves battery consistency and supports long-term operation for commercial and industrial LiFePO4 energy storage projects.
-
What safety protections are included?
The cabinet combines three-tier BMS monitoring, high-voltage protection, aerosol fire suppression, smoke and temperature detection, liquid cooling control and IP55 outdoor protection. These layers help improve safety for PV-integrated battery storage systems.
-
Can multiple liquid-cooled hybrid cabinets be expanded in parallel?
Yes. The modular architecture supports parallel expansion based on project capacity, power demand, grid conditions and site layout. SUNPAL ESS can help distributors, EPCs and project owners configure the right system size for future growth.
-
How can I get the project cost or custom quote?
To estimate liquid-cooled hybrid ESS cabinet cost, share your PV capacity, load profile, backup time, grid voltage, installation environment and target application. SUNPAL ESS can provide a custom quote, technical configuration and lead time for your C&I energy storage project.
Ready to Build Your Liquid-Cooled Hybrid ESS Project?
Contact SUNPAL ESS for liquid-cooled hybrid cabinet pricing, project configuration and manufacturer support for C&I solar-plus-storage applications.
GET A QUOTE →
View All ESS Cabinets