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Hexing has officially signed an agreement with De-Janees Concepts Ltd to jointly launch a 2 MW solar-powered medium-voltage microgrid project with 3 MWh of energy storage in Saki, Oyo State, Nigeria, with plans to scale up to 10 MW in the future. Once completed, the project will deliver at least 22 hours of clean and stable electricity daily, initially serving 4,000 households as well as key institutions such as schools, hospitals, and fuel stations.

The implementation of this project underscores Hexing's commitment to delivering clean energy solutions for communities and marks a significant milestone in its expansion into the African renewable energy market.

Photo (left to right): Engr. Isaiah Fatokun, Managing Director and CEO of De-Janees Concepts Ltd; Simon Ye, Vice President of Hexing Group, at the signing ceremony of the Saki microgrid project.

Addressing Urgent Energy Needs in Saki

Saki is located in the Oke-Ogun region and comprises 15 sub-communities with a population of over 500,000. Despite hosting more than 100 fuel stations, large hotels with over a hundred rooms, multiple schools, and police stations, the area suffers from chronic electricity shortages and unstable power supply.

The project will be implemented in three phases. In the first phase, 2 MW of solar power will be delivered through the Sango feeder, providing electricity to 4,000 households. This phase is scheduled for completion and commissioning by December 2025. Ultimately, the project will be expanded to 10 MW, with future upgrade potential to 30 MW, aiming to reach even more communities currently off the grid.

At the signing ceremony, Engr. Isaiah Fatokun, Managing Director/CEO of De-Janees Concepts Ltd, stated that the project aligns with Nigerian President Bola Tinubu's “Renewed Hope Power Agenda,” aiming to drive economic growth, revitalize local businesses, enhance education, and significantly improve the overall quality of life in Saki.

Hexing's Comprehensive Medium-Voltage Microgrid Solution

Hexing's medium-voltage microgrid system is primarily designed for small-scale power networks with grid connection voltages of 40.5 kV and below. It integrates distributed PV systems, energy storage systems, coordinated control units, electrical loads, monitoring devices, and protection equipment into a unified, intelligently managed system. These components work in synergy to form a generation-distribution-consumption integrated microgrid with precise local energy balancing.

In the Saki medium-voltage microgrid project, Hexing has delivered a comprehensive solution that includes PV modules, grid-tied inverters, energy storage systems, prefabricated substations, pole-mounted reclosers, and an intelligent energy management platform. The project adopts an 11 kV grid/off-grid hybrid architecture with key features such as multi-energy coordinated control, medium-voltage equipment interfacing, intelligent scheduling, and black start capability, ensuring stable and efficient operation even under weak grid conditions.

Key Equipment Composition

The system is built on a hierarchical control architecture, enabling coordinated control of multiple energy sources. At the local level, device-level PID control is implemented, such as PV MPPT tracking and battery SOC balancing. At the centralized level, the EMS provides intelligent, full-scenario management of the microgrid, delivering customized solutions to ensure optimal system operation and efficient service delivery.

Through this layered optimization structure, Hexing's medium-voltage microgrid system combines precise device-level control with intelligent system-wide management. It supports seamless grid-connected/off-grid switching with features like pre-synchronization, synchronous closing, and anti-backflow protection. This architecture significantly enhances renewable energy integration and provides solid technical support for building a secure, clean, and sustainable modern energy system.

Multiple Control Strategies

Project Development and Government Collaboration

The project is led and developed by De-Janees Concepts Ltd, approved by the Rural Electrification Agency (REA) of Nigeria, and supported by funding from the World Bank. The local distribution company, Ibadan Electricity Distribution Company (IBEDC), will provide access through existing distribution infrastructure.

Simon Ye, Vice President of Hexing Africa Region, stated: "This collaboration is not only a delivery of our medium-voltage microgrid solution, but also a concrete realization of Hexing's vision as a 'Global Expert in Green Energy & Clean Water Solutions'. We look forward to working with our partners to light up Africa, bringing light and hope to more people living in darkness."

The project has now entered the execution phase, with civil works and equipment transportation progressing in parallel. It is expected to be connected to the grid within the next ten months. Once completed, the project will significantly enhance the Saki community's energy security, promote local economic growth, and improve the quality of life for residents.

Hexing will continue to drive development through innovation, using green technology to light up every corner of the world that needs power.