Bringing Light to Cameroon: How IEEE Smart Village Powers Rural Communities

In the remote mountain village of Mbem, Cameroon, Jude Numfor grew up without electricity, relying only on moonlight and stars after sunset. This lack of power limited opportunities for education, safety, and economic development. Motivated by a childhood memory of peeping through a neighbor's window to watch television powered by a petrol generator, Numfor dedicated his life to electrifying rural areas. Today, through his company Renewable Energy Innovators Cameroon (REI Cameroon) and support from IEEE Smart Village, he is bringing sustainable solar minigrids to off-grid communities. Below, we explore the challenges, solutions, and impacts of this transformative initiative.

What sparked Jude Numfor's mission to electrify rural Cameroon?

Jude Numfor’s inspiration came from a vivid childhood memory in the village of Mbem, where after sunset, the only light came from the moon and stars. One neighbor owned a petrol generator and a small television. When that generator was turned on, all the children would rush to his house and peer through the window, mesmerized by the glow. This experience made Numfor realize how transformative electricity could be. In 2001, he moved in with a missionary family in Allat who used solar panels to power their home. He could watch TV, eat ice cream, and turn on lights—luxuries unimaginable in Mbem. That taste of modern life fueled his desire to bring the same opportunities to his brothers and community. In 2006, he co-founded Wireless Light and Power (now Renewable Energy Innovators Cameroon) to design and install solar minigrids, turning his childhood spark into a lifelong mission.

How does REI Cameroon’s solar minigrid system work?

REI Cameroon designs, installs, and maintains solar minigrids for rural electrification. These systems use photovoltaic (PV) solar panels to capture sunlight and battery-energy storage systems to store electricity for use after dark. The electricity is generated at 50 hertz, matching standard grid frequencies, and distributed through smart meters that allow precise tracking of consumption. Each minigrid is tailored to the community’s needs, providing reliable power for homes, schools, and small businesses. The use of smart meters ensures fair billing and helps manage load, preventing overloads. By relying on solar energy, the minigrids are sustainable, low-maintenance, and environmentally friendly, offering a clean alternative to kerosene lamps and diesel generators. Numfor’s early experience tinkering with a motion-sensor solar light—where he replaced a dead battery with a motorcycle battery—was a practical lesson that shaped his approach to creating robust, repairable systems for remote areas.

What role did IEEE Smart Village play in this electrification effort?

In 2017, IEEE Smart Village awarded a grant to REI Cameroon to expand its minigrid operations and refine its business model. Smart Village is a global program that supports projects bringing electricity, education, and employment opportunities to underserved communities. The grant went beyond financial aid—it provided mentorship, technical advice, and a network of like-minded entrepreneurs. Numfor says, “It’s not just about money. We share ideas, we get advice, and we have made friends. Entrepreneurship is lonely, but with the [Smart Village] community, it is different.” This partnership also catalyzed collaboration on open source metering, a free, community-driven system for tracking energy usage. By aligning with IEEE Smart Village, REI Cameroon gained credibility and access to resources that accelerated its impact, helping more villages transition from darkness to sustainable, reliable electricity.

What is open source metering and why is it important?

Open source metering is a transparent, community-driven way of tracking energy consumption. Unlike proprietary utility meters that lock users into a single vendor, open source systems allow anyone—users, researchers, and utilities—to view, customize, and verify how data is collected. This ensures fairness in billing, accurate consumption tracking, and better grid management. The collaboration between IEEE Smart Village and REI Cameroon has advanced this technology, making it available for rural minigrids. By adopting open source metering, communities can avoid vendor lock-in, reduce costs, and build local technical capacity. It also promotes trust, as villagers can see exactly how much energy they use and how charges are calculated. This transparency is crucial in remote areas where traditional regulatory oversight is minimal. Ultimately, open source metering empowers communities to take ownership of their energy systems.

How did Jude Numfor’s early experiences shape his approach to solar energy?

Numfor’s first encounter with electricity at the missionary family’s home in Allat was transformative. The family used solar panels to power their entire home—an unimaginable luxury in his home village of Mbem. When a motion-sensor solar light stopped working, Numfor’s curiosity was ignited. He tinkered with the device, replacing the dead battery with a motorcycle battery, and successfully restored power. The missionary family encouraged him to “play with it like a toy,” fostering a hands-on, experimental learning style. Since no Cameroonian university offered solar energy programs at the time, they guided him to study technology and engineering independently. This self-taught foundation taught Numfor the importance of practical problem-solving, community engagement, and affordable repairs. Today, REI Cameroon’s systems are designed to be modular and maintainable by local technicians, reflecting the same DIY spirit that kickstarted his journey.

What impact has REI Cameroon’s electrification had on local communities?

REI Cameroon’s solar minigrids have transformed life in rural villages. Electricity enables children to study after dark, reduces dependence on hazardous kerosene lamps (known locally as “bush lamps”), supports small businesses like grain mills and phone charging stations, and improves healthcare by powering refrigerators for vaccines. The smart meters provide transparent billing, reducing disputes and building trust. Additionally, the project creates local jobs in installation and maintenance. By partnering with IEEE Smart Village, REI Cameroon has access to a global network that shares best practices and innovations. The emotional impact is equally profound: villagers describe the first night with lights as a moment of joy and hope. Numfor’s ultimate goal is to ensure that no child in rural Cameroon has to peep through a neighbor’s window to glimpse the benefits of electricity—instead, they can turn on a light in their own home.

What challenges remain for rural electrification in Cameroon?

Despite significant progress, challenges persist. The upfront cost of solar minigrids and batteries remains high, requiring grants and innovative financing. Regulatory frameworks for off-grid electricity are still evolving, creating uncertainty for private operators. Remote villages with difficult terrain are costly to reach, and local technical expertise is scarce—though training programs are slowly closing this gap. Weather dependency and battery degradation also pose operational hurdles. Nevertheless, partnerships like the one between REI Cameroon and IEEE Smart Village help overcome these barriers by sharing risk and knowledge. The development of open source metering reduces reliance on proprietary systems, lowering long-term costs. Community engagement is another key challenge: gaining trust and ensuring fair usage require continuous dialogue. Looking ahead, scaling these solutions to reach millions of unelectrified households will demand policy support, private investment, and sustained collaboration between local entrepreneurs and international organizations like IEEE.