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Sail Solar 261KWH All-in-one Liquid-cooled ESS Cabinet Energy Storage System with 125KW PCS

Sail Solar 261KWH All-in-one Liquid-cooled ESS Cabinet Energy Storage System with 125KW PCS

The All-in-one ESS cabinet features advanced pack-level liquid cooling and temperature balancing, maintaining cell temperature dierences within 3°C. This enhances cell temperature consistency and extends battery life. Its modular design enables flexible parallel configurations and higher energy density, significantly improving the cost-eectiveness, safety, and installation convenience of ESS projects.

  • Item No :

    BESS-P261
  • Cooling :

    Liquid Cooling
  • Communication Port :

    CAN, RS485
  • Capacity :

    261KWH
  • Output Voltage :

    380V / 400V, Other Voltages Customized
  • Protection Class :

    IP55
  • Warranty :

    10 Years
  • Certificate :

    CE
  • Type :

    All-in-one

The energy storage system is configured as 125kW/261kWh, and it adopts a distributed integrated design scheme. It is used in a variety of application scenarios such as emergency power supply, peak-cutting and valley-filling. Battery capacity is 261kWh, it is connected to the high-voltage switch box through a cable, and the three-phase four-wire energy storage converter (PCS) in the box is connected to the rear. The system is equipped with a 125kW PCS integrated machine and connected to 400Vac AC bus. 

Specification

 

MODEL

BESS-P261

Battery Energy(kWh)

261KWH

Rate Power

125KW

AC Output

400V, 3L+N+PE, 50Hz/60Hz

Transfer Time

≤20ms

Communication

RS232/RS485/CAN/BLUETOOTH/ WIFI

Cooling Method
Liquid Cooling
Storage Temperature Range
-20~45°C
Operation Temperature

-20~60°C

Humidity

5%RH~95%RH

Altitude
≤3000m
Safety System
Aerosol
BATTTERY PARAMETERS
Battery Chemistry
LiFePO4
Nominal Capacity

314Ah

Composition Method

1P260S

Nominal Voltage

832V

Operating Voltage Range

728-936V

Efficiency

>94% (DC side)

Max Charging Current

140A

Max Discharging Current

140A

Cycle

8000 cycles 80%DOD, 0.5C

Calendar Life

10 years

PCS PARAMETERS
Max DC power

137kw/1min

Rate Operating Voltage

AC 400VAC

Max AC Current

180A

Approved Grid Frequency Range

50/60Hz

AC Harmonic Voltage

<3% (linear load)

Voltage Deviation

<5% (linear load) (phase<3%)

MECHANICAL SPECIFICATIONS
Machine Dimension (W*H*D)(mm)

1050*1350*2400

N.W(kg)

2600

IP Grade

IP55

Certification & Standards

CB, CE, EMC, UN38.3, RoHs

Product Description

 

Compact Structure

Locating only 1.4 square meters, it facilitates transportation and installation.

 

High Integration

With a single unit capacity of up to 261 kWh and exceptional durability.

 

Highly Efficient Cooling

Superior internal liquid cooling piping design achieves efficient cooling and low energy consumption.

 

Flexible Expansion

Modular design simplifies parallel expansion.

Capacity and Integration: Utilizes integrated Lifepo4 battery clusters, with built-in BMS (Battery Management System), PCS (Power Converter System), EMS (Energy Management System), and auxiliary systems such as fire protection and temperature control, all encapsulated in a standard rack for easy on-site deployment.

 

Energy Conversion: As the system hub, it receives DC power from photovoltaics, performs DC-AC conversion via the PCS, and outputs 400Vac AC power. It can also charge from the grid/load side in reverse, achieving functions such as peak shaving and valley filling, and photovoltaic power consumption.

 

Intelligent Management: Supports remote monitoring via local PC and mobile devices, allowing real-time viewing of battery SOC, charging/discharging power, fault alarms, and flexible configuration of charging/discharging strategies.

 

 

 

After-Sales Service

" 7/24 " After-Sales Support

7 days a week, 24 hours a day: Ready to respond and solve problems immediately—Sail Solar's commitment to worry-free after-sales service.

Service Email: info@sailsolaress.com


Service Process

01

Submit Service Requests

Submit your service requests at any time via email, online customer service, or mobile app.

02

Rapid Response

Our service team will immediately respond to your requests and communicate the details of the issue with you.

03

On-Site Service or Remote Support

Depending on the nature of the problem, provide on-site service or remote technical support.

04

Problem Resolution

Our goal is to completely resolve your issue within 24 hours.

05

Follow-Up

After the problem is resolved, our team will continue to follow up to ensure your satisfaction with the service results.

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