Weak grid conditions can make stable electricity supply difficult for small commercial and industrial users, particularly in remote areas with limited infrastructure and O&M support. Integrated energy storage can provide voltage support, backup power, and simpler deployment without relying on extensive grid upgrades.
Building a Highly Reliable Energy Security System for Weak Grid End-User Scenarios
In some parts of Africa, due to limitations in power distribution infrastructure and grid coverage, remote townships and small commercial users face long-standing issues such as voltage instability, frequent power outages, and disruptions to equipment operation.
For users such as small shops and processing facilities, while traditional diesel-powered generators can provide backup power, they suffer from issues such as inconvenient fuel supply, high maintenance costs, and excessive operational noise. At the same time, complex energy storage systems typically require professional installation and O&M support, making them difficult to adapt to local conditions.
To address the energy needs of end-users in Africa’s commercial and industrial sectors, YUNT offers lightweight, all-in-one energy storage solutions. Through highly integrated design, grid-forming control technology, and intelligent energy management, these solutions ensure stable power supply in weak grid environments and lower the barrier to energy management for users.
Scenario Requirements: Addressing Grid Instability at the End-User Level
Small commercial and industrial users in African towns and villages typically face the following challenges:
- Long distribution line distances, resulting in significant voltage fluctuations at the end of the line;
- Equipment startup is easily affected by grid disturbances;
- Power outages leading to disruptions in business operations;
- A lack of professional energy operations and maintenance teams.
The project must simultaneously meet the following requirements:
- Stable operation in weak-grid environments;
- Rapid response to transient loads;
- Continuous power supply during outages;
- Simple and convenient installation and maintenance.
Compared to traditional grid retrofits, users require an energy solution that can be deployed quickly and is highly adaptable.
System Solution: Integrated Design Enhances Deployment Efficiency
YUNT provides standardized energy storage system solutions tailored to the characteristics of small-scale commercial and industrial applications.
Project Configuration:
- 120 kW/243 kWh integrated energy storage system;
- VSG grid-forming PCS;
- Battery thermal management system;
- High- and low-voltage protection units;
- Local EMS control module.
Through a highly integrated design, energy storage conversion, protection and control, and energy management functions are combined into a single unit, reducing the complexity of on-site equipment configuration and commissioning.
The system intelligently switches between different operating modes:
During grid-connected operation:
- The PCS actively supports grid voltage;
- smooths out load fluctuations;
- reduces equipment startup surges.
During grid abnormalities:
- The system rapidly switches to off-grid operation mode;
- Autonomously establishes a stable AC power supply;
- Continuously ensures power for critical loads such as lighting and production.
Leveraging VSG grid-forming control technology, the system enhances operational stability in weak grid environments without relying on strong grid support.
Additionally, the equipment is specifically designed to withstand Africa’s high-temperature, dusty outdoor environments, ensuring long-term reliable operation.
Project Value: Lowering the Barrier to Energy Upgrades
Through a lightweight, all-in-one energy storage solution, the project helps small commercial and industrial users improve power supply reliability without the need for large-scale power infrastructure upgrades.
The solution reduces the complexity of equipment deployment and subsequent operation and maintenance, while enhancing users’ energy security in the face of grid fluctuations and power outage risks.
This project demonstrates YUNT’s ability to provide differentiated system integration solutions tailored to diverse overseas market needs, offering flexible and reliable energy solutions for African townships, small businesses, and remote industrial settings.
