Installation of a 261 kWh BESS System Combined with a 400 kWp Solar System at an EV Charging Station in Phu Tho
C&I BESS

Installation of a 261 kWh BESS System Combined with a 400 kWp Solar System at an EV Charging Station in Phu Tho

Project Introduction

  • Project Name: Deployment of Two 261 kWh BESS Units at Electric Vehicle Charging Station

  • Location: Phu Tho Province, Vietnam

  • Implementation Time: October 2025

  • Implementing Unit: GG Industries

2. Project Objectives

  • Stabilize charging capacity during peak hours at the EV charging station.

  • Reduce electricity costs by storing energy during off-peak hours and using it during peak demand.

  • Improve efficiency in utilizing renewable energy sources (if solar power is integrated).

  • Help reduce grid load in the area and enhance operational reliability.

3. Technical Specifications

Item Specifications
System capacity 261 kWh
Battery type Lithium-ion (LFP)
PCS (Power Conversion System) 125 kW
Features Bi-directional charging/discharging, smart EMS control
Monitoring system Remote access via IoT platform
Safety protection Integrated BMS, fireproof, short-circuit & overvoltage protection

4. Challenges & Solutions

Challenges:

  • High and fluctuating EV charging loads put pressure on the local grid.

  • Limited capacity of medium-voltage power lines in the area.

  • Safety must be ensured when integrating battery storage with fast DC charging systems.

Solutions:

  • Optimize the design using distributed energy storage architecture.

  • Integrate an Energy Management System (EMS) for intelligent power coordination.

  • Install remote monitoring systems with early warning for battery and system status.

5. Achieved Results

  • Reduced station operating costs by up to 30% through off-peak energy usage.

  • Ensured 100% stable charging output during peak hours without interruptions.

  • Alleviated grid load by approximately 250 kW during peak demand periods.

  • Enhanced the green, clean, and modern image of Phu Tho’s urban infrastructure.