From Moonlight to Minigrid: Electrifying Cameroon's Remote Villages

In the mountain village of Mbem, Cameroon, young Jude Numfor grew up under starlit skies after sunset, with no electricity. A single neighbor's petrol generator and tiny TV drew all the local children to peek through windows. That memory sparked a mission: bring power to rural communities. Today, as CEO of Renewable Energy Innovators Cameroon (REI Cameroon), Numfor leads solar minigrid projects, supported by IEEE Smart Village. This Q&A explores his journey, the technology, and the partnership that's lighting up lives.

1. What inspired Jude Numfor to dedicate his life to rural electrification?

Jude Numfor's inspiration came from his childhood in Mbem, where after dark, the only light was the moon and stars. A single villager owned a petrol generator and a small television; when it was on, all children rushed to his house to peep through the window. That memory crystallized into a lifelong mission. In 2006, he co-founded Wireless Light and Power—later renamed Renewable Energy Innovators Cameroon (REI Cameroon)—to develop solar minigrids. Numfor's own first experience with electricity was in 2001, living with a missionary family in Allat who used solar panels. He could watch TV, eat ice cream, and turn on lights—luxuries he wished his brothers back in Mbem could also enjoy. That contrast fueled his determination to bring sustainable electricity to remote communities.

2. How does REI Cameroon's solar minigrid technology work?

REI Cameroon designs, installs, and maintains solar minigrids for rural electrification. These minigrids use photovoltaic solar panels to capture sunlight and convert it into electricity, which is stored in battery-energy storage systems. The electricity is then distributed at a stable 50 hertz frequency through smart meters. The smart meters allow precise tracking of energy usage, enabling fair billing and efficient grid management. Unlike traditional diesel generators, these minigrids are clean, renewable, and scalable. REI Cameroon's approach also includes community engagement to ensure sustainability, such as training local technicians and involving villagers in grid maintenance. The technology replaces hazardous kerosene lamps—locally called “bush lamps”—with reliable, safe solar power, improving health, safety, and quality of life.

3. What role did IEEE Smart Village play in REI Cameroon's growth?

IEEE Smart Village provided a crucial grant in 2017 to expand REI Cameroon's minigrid operations and refine its business model. As Numfor explains, the support goes beyond funding: “We share ideas, we get advice, and we have made friends. Entrepreneurship is lonely, but with the Smart Village community, it is different.” Smart Village is an IEEE program that supports projects bringing electricity, education, and employment to remote communities worldwide, funded by IEEE societies and donations to the IEEE Foundation. The partnership enabled REI Cameroon to develop open source metering and scale its impact, transforming from a small startup into a recognized force for rural electrification. Smart Village's mentorship and network helped Numfor navigate challenges and avoid isolation.

4. What is open source metering, and how does it benefit communities?

Open source metering is a free, community-driven system for tracking energy usage, developed through collaboration between REI Cameroon and IEEE Smart Village. Unlike proprietary utility meters, the open source approach allows users, researchers, and utilities to view, customize, and verify how data is collected. This ensures transparency in billing, consumption tracking, and grid management. Communities can audit their own energy use, reduce disputes, and adapt the system to local needs. Researchers can study consumption patterns to improve efficiency, while utilities gain trust. The system is designed to be low-cost and easy to maintain, using locally available components. By democratizing access to data, open source metering empowers rural communities to take control of their electricity supply and build sustainable energy habits.

5. How did Jude Numfor's early tinkering experiences shape his career?

After moving in with a missionary family in Allat in 2001, Numfor encountered solar panels for the first time. When a motion-sensor solar light stopped working, his curiosity led him to tinker with it. The missionary family encouraged him, saying, “Play with it like a toy.” He replaced the dead battery with a motorcycle battery and restored power for the night. That hands-on experimentation ignited a passion for solar technology. His missionary parents urged him to study technology and engineering independently, since no Cameroonian university offered solar energy programs at the time. Through self-study and practical problem-solving, Numfor transitioned from a teenage tinkerer to an entrepreneur. This foundation of curiosity and resourcefulness became the bedrock of his career, enabling him to design and deploy reliable solar minigrids that serve hundreds of households.

6. What challenges did Numfor face, and how did Smart Village help beyond funding?

Numfor faced numerous challenges: lack of formal education in solar energy, limited infrastructure in remote villages, and the loneliness of entrepreneurship. The isolation was particularly tough—running a social enterprise in a developing country often means working without peers who understand the unique struggles. IEEE Smart Village provided more than a grant; it offered a community of like-minded innovators. Through regular meetings, advice sessions, and networking, Numfor gained emotional support and practical guidance. Smart Village also helped refine the business model, moving from charity-based distribution to a sustainable, fee-for-service approach. The collaboration on open source metering opened doors to global expertise. Numfor sums it up: “We share ideas, we get advice, and we have made friends.” This holistic support turned a fledgling project into a resilient organization.

7. What impact has the partnership between REI Cameroon and IEEE Smart Village had on local communities?

The partnership has electrified villages like Mbem, where children no longer have to run to a neighbor's window to watch TV. Solar minigrids now power homes, schools, and small businesses, enabling evening study, refrigeration for medicines and food, and new economic activities. Smart meters ensure fair billing, and community training empowers locals to maintain the systems. Beyond electricity, the program brings educational opportunities—students can use lights to study at night—and employment as technicians and entrepreneurs. The open source metering project also fosters transparency and trust. By replacing kerosene lamps, the minigrids improve indoor air quality and reduce fire hazards. The impact extends beyond individual villages: REI Cameroon's model is replicable, and IEEE Smart Village uses it as a case study for other regions. Numfor's childhood dream is becoming a blueprint for rural electrification worldwide.