Sail Solar 261KWH liquid‑cooled outdoor cabinet is a complete high‑voltage battery system tailored for commercial and industrial energy storage system applications. The cabinet integrates four auxiliary systems – BMS, liquid‑cooling thermal management, fire protection, and power distribution – into a closed‑loop safety operation framework. It supports flexible upgrades and can be adapted to other high‑voltage storage systems in our product line, enabling cost‑effective scaling from 261kWh upwards.
Brand Name :
Sail SolarModel Number :
BESS-I261Power Range :
261KWHGrid Type :
Hybrid/OffgridNumber of Cycles :
8000 timesBattery Type :
LFPCooling :
Liquid CoolingOperation Temperature :
-20~50℃Protection degree :
IP54Feasures of All-in-one LIQUID-COOLED ESS CABINET, BESS-I261
The 261 kWh liquid-cooled cabinet is a space-saving, high-density storage solution that integrates battery, cooling, and control in one unit. Designed for fast installation and scalable growth, it offers the following core advantages
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1.4m ² footprint only, easy transportation & fast installation The cabinet fits through standard doorways and elevators, greatly simplifying logistics, making it perfect for sites where space and time are limited. |
High Integreation 261kWh energy in one cabinet with remarkable endurance This high energy density delivers exceptional endurance, supporting full‑load discharge for over six hours and reducing the need for additional auxiliary |
Optimal in-PACK duct design, achieve high efficient cooling and low energy consumption Compared to traditional air cooling, auxiliary power consumption is impoved greatly, ensuring low energy use even in extreme ambient conditions. |
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Modular design, simplified parallel expansion. Up to 16 cabinets can be connected in parallel, scaling total capacity to over 4 MWh. It allows users to start small and add capacity incrementally as demand grows, without replacing existing equipment.
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Over 8,000 times cycle life, excellent performance of battery system Offering reliable long‑term performance and predictable return on investment. |
Battery Parameters:
| Battery Cell | LFP 3.2V314AH |
| Battery Pack | 166.4V 314AH |
| Battery Cluster Rated Voltage | 832V(5 modules in series) |
| Voltage Range | 728~936V |
DC Side Parameters:
| Combination Method | 1P260S |
| Rated Power | 130.5KW |
| Rated Charge and Discharge Rate | 0.5C |
Cabinet:
| Size (W*D*H) | 970*1420*2320mm |
| Relative Humidity | 0-95% |
| Fire Protection System | Aerosol |
| Detector Type | Warmth sensation, smoke sensation |
| Weight: | ≈3T |
Inverter:
| Inverter 100~125KW, AC: Three Phase 380V. (Solis, Deye, Growatt) |
Application of BESS-I261: 261kwh Liquid Cooling Energy Storage System
1. Industrial Factories
Applied in manufacturing factories for peak-valley arbitrage, demand charge reduction and capacity expansion. It provides emergency power during outages and improves on-site PV self-consumption.
2. Commercial Complexes & Public Buildings
Suitable for malls, hotels, office buildings, hospitals and logistics parks etc.
It optimizes power costs, relieves peak load pressure and offers quiet emergency backup power.
3. PV-Storage-Charging Integrated Stations
It supports PV-storage-charging integration, compensates insufficient grid capacity and avoids grid upgrades.
4. Tech Parks
Cabinets can be paralleled for industrial and tech parks.
It supports peak regulation, demand response and virtual power plant participation to increase park energy benefits.
5. Off-Grid Areas (Islands, Mines & Remote Construction Sites)
Perfect for off-grid scenarios including islands, mines and remote construction sites.
Sail Solar 261kw All in One ESS Cabinet, Project Cases
SAIL SOLAR liquid-cooled energy storage cabinets boast abundant successful application cases worldwide. Our systems are widely deployed in diversified scenarios including commercial & industrial energy storage, off-grid microgrids, large-scale PV coupled energy storage and cross-border energy projects.
261kWh Liquid‑Cooled Outdoor Cabinet – System Interconnection Overview
The Liquid-cooled Cabinet work together with inverter as a team.
The inverter acts as the bridge between battery (DC) and AC bus, enabling bidirectional energy conversion.
1) Charging – It takes electricity from the grid or solar panels and stores it in the battery inside the cabinet.
2) Discharging – It sends that stored electricity out to charge appliances like electric cars, trucks, and buses.
The liquid-cooled cabinet includes
A 261kwh lithium battery bank for storing electricity- when the sun is gone, the battery instantly takes over, so you can keep charging EVs or keep important equipment running.
A liquid cooling system-Coolant liquid flows around the battery cells, absorbs heat. It keeps the battery cooler and more evenly cooled than a fan, making it safer and longer‑lasting.
Our Factory
SAIL SOLAR is located in Anhui, china, with 16 years energy storage experience, focuses on mid-to-high-end energy storage markets allover the world.
As a high-tech company in solar photovoltaic andenergy storage, SAIL SOLAR offers eco-friendly, smart, sustainable solar photovoltaic and energy storage solutions
Exhibition
SAIL SOLAR actively participates in numerous global renewable energy exhibitions across the world. We travel to key trade shows in international markets, communicating face-to-face with distributors and end customers. Through on-site booth displays and in-depth conversations, we show our reliable solar products, share professional system solutions, build trust with global clients, and continuously expand our international business network.
People May Ask
Q1: What is advantages of liquid cooling compared with air cooling commercial energy storage system?
A1: Compared with air cooling, liquid cooling realizes more even temperature distribution among cells, effectively restraining battery degradation. It performs much better in high-temperature environments with lower noise and smaller self-power consumption, delivering longer battery cycle life and higher system reliability.
Q2: What is Coolant? How often should it be replaced?
A2: Coolant is a heat transfer medium circulated inside the liquid cooling system. It absorbs heat generated by battery cells and carries heat away to maintain batteries within a proper operating temperature range. The coolant should be replaced every two years. A replacement coolant will be gived away with the shipment.
Q3: Can the liquid cooling system preheat in low-temperature winter environments? Are there any charging limits under low temperature?
A3: Yes, the liquid cooling system supports active preheating. When the temperature drops below the set threshold the system will start preheating to bring battery cells up to the safe working temperature.
There are low-temperature charging restrictions Charging current will be automatically reduced at low temperatures to protect the batteries, and charging will be prohibited if the temperature is excessively low.
Tags :
Tel : +86 -18655186412
Email : Inquiry@sailsolarpv.com
Whatsapp : +86 -18655186412
Add : Building 7, Cross Border E-Commerce Supervision Zone, Hefei, China
