1.72 MWh Energy Storage System Project
Case introduction

CASE

Case

1.72 MWh Energy Storage System Project

The project combines the grid connection and off-grid switching system with the energy management system, applied to a solar power station as a supplement to the existing solar power system.



  1. Project Introduction

This project is located in a sun-rich area of Nigeria and is an expanded energy storage system that supports its existing solar power station. The project integrates a grid connection and off-grid switching system with an energy management system, helping the client maximize the use of solar power generation.

  1. Project Details

2.1 Application

The energy storage system is primarily applied to a solar power station in Nigeria as a supplement to the existing solar power system. Previously, the solar power station could only provide power during the day, but with the introduction of the energy storage system, the solar station can store excess electricity and use it during peak demand or at night, achieving higher energy utilization efficiency.

2.2 Installed Capacity

The project is configured with 8 units of 215 kWh energy storage cabinets, with a total energy storage capacity of 1720 kWh (or 1.72 MWh).

2.3 Main Equipment

  • Energy Storage Cabinets: 8 units of 215 kWh dual-chamber outdoor energy storage cabinets, with an IP65 protection rating.
  • Grid Connection and Off-Grid Switching System: Supports flexible power scheduling, and the system can automatically switch to grid-connected or off-grid mode based on power demand.
  • Energy Management System (EMS): Installed in the distribution cabinet, it monitors the real-time operation status of the energy storage system, optimizes the charging and discharging process, improves energy storage efficiency, and extends battery life.
  • Solar Radiation Sensor: The project is equipped with a solar radiation sensor that can monitor the solar radiation intensity in real-time, providing accurate input data for the energy management system to help optimize the coordination between photovoltaic generation and energy storage.

Project Video

Nigeria 1.72 MWh Energy Storage System Project

Project advantages

Solves the Intermittency Issue of Solar Power Generation
Solves the Intermittency Issue of Solar Power Generation
Nigeria is located in the tropics, with abundant sunlight and rich solar resources throughout the year. This project leverages the combination of solar power generation and energy storage technology to maximize the utilization of solar resources, addressing the intermittency issue of solar power generation.
Efficient Energy Storage and Intelligent Management
Efficient Energy Storage and Intelligent Management
By introducing 215 kWh energy storage cabinets and an energy management system, the system can intelligently schedule the charging and discharging process of the batteries, improving energy storage efficiency. It can provide sufficient power during peak load periods or times of high electricity demand.
Flexible Grid Connection and Off-Grid Functionality
Flexible Grid Connection and Off-Grid Functionality
The system's grid connection and off-grid switching function can automatically adjust based on actual demand, ensuring that the energy storage system can flexibly provide stable power under varying electricity demands and grid conditions, enhancing the reliability of power supply.
Ability to Withstand Harsh Environments
Ability to Withstand Harsh Environments
The energy storage cabinet is designed with an IP65 protection rating, effectively preventing dust and water, making it suitable for Nigeria's hot and humid climate.
Fast Delivery and Customized Services
Fast Delivery and Customized Services
The project delivery time is 65 days, covering design, equipment supply, and installation commissioning. The entire process is fast and efficient. Customers can customize the system according to their specific needs, ensuring it is best suited for their usage scenario.
Safe and Durable
Safe and Durable
The system is equipped with high-standard safety protection measures, including over-voltage, over-current, and over-temperature protections, ensuring safe operation of the equipment under various complex conditions. Additionally, high-quality energy storage devices are used to extend the system's lifespan.

Core products

Satellite Communication Energy Cabinet
Satellite Communication Energy Cabinet

The Satellite Communication Energy Cabinet is a PV energy storage cabinet from Highjoule Technology Group designed specifically for off-grid satellite communication sites. The system consists of PV modules, an MPPT solar controller, an LFP (Lithium Iron Phosphate) battery pack, a thermal management system, and a power distribution unit, forming a complete off-grid PV generation and energy storage system that provides stable power to satellite communication base stations. The system adopts a modular design and can be efficiently operated and maintained via local and remote monitoring. It supplies 48V DC and AC 120V–200V power to satellite and other industry communication equipment, supporting floor-standing and pole-mount installation.

Outdoor Battery Cabinet
Outdoor Battery Cabinet

The Outdoor Battery product line is centered on green low-carbon, high-efficiency, and intelligent coordination principles. It covers both indoor and outdoor configurations, with lithium batteries (or lead-acid batteries) forming battery energy storage cabinets. Each cabinet also houses environmental sensors, battery circuit breakers, battery cables, and thermal management accessories to form an integrated battery cabinet.

Hybrid Power System
Hybrid Power System

The Site Hybrid Power System is a next-generation multi-energy integrated power supply for 4G/5G base stations, communication equipment rooms, edge data centers, and outdoor compact sites. It breaks the traditional “single grid input, single DC output” architecture to achieve multi-source energy input + multi-voltage output + intelligent coordinated dispatch. At the site level, it accommodates grid power, PV, energy storage, diesel generators, and other sources, delivering a highly reliable, efficient, and simply deployable power framework for 5G equipment, transmission equipment, and IoT loads. Power range: 6 kW–36 kW; available in both 3U and 1U circuit breaker configurations.

Stacked-PV MPPT Solar Controller
Stacked-PV MPPT Solar Controller

The Stacked-PV MPPT Solar Controller is specially developed for PV capacity expansion at base station sites. Using a series-connection scheme, the system consists of PV modules, a stacked-PV MPPT controller, and a DC meter. Each PV string is series-connected to the controller, which steps down the module output voltage to −48V and injects it onto the rectifier output busbar to supply DC loads. Designed for communication base stations, it supports wall-mount and pole-mount installation. The product is available in outdoor and rack-mount versions.

Outdoor Hybrid Energy Cabinet
Outdoor Hybrid Energy Cabinet

The products deeply integrate AC/DC conversion, multi-energy intelligent scheduling, energy storage charge/discharge management, and remote monitoring technologies. Flexibly deployable in indoor equipment rooms, outdoor 5G base stations, and remote sites, they ensure uninterrupted power for communications and critical loads while maximizing green energy consumption, reducing energy use and carbon emissions, and upgrading traditional power supply to a clean, intelligent, integrated site energy solution.

Solution

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