The system is unglamorous and it works. Positive and negative plates, salvaged from discarded car batteries, sit in water. From there the current runs through circuits Kapumburu installed himself, each room with its own switch and its own small red indicator lamp. For about two years it has powered radios and charged mobile phones.
It was not his first attempt. He built a wind generator first, around a rotating motor, and gave it up: on still nights the blades hung motionless and the house went dark. So he went back to the batteries, which need no weather.
Electricity is not a small thing here. Kavango West is among the least electrified parts of Namibia, where national access reached 56.7% in 2023 and the gap falls almost entirely on rural households. The homesteads are scattered, and distance is what costs. Running the grid to a single rural house can run from N$80,000 to N$300,000 — against N$30,000 to N$50,000 in peri-urban areas. Kapumburu's family did not wait for that arithmetic to resolve.
Leaving school early is ordinary in this region, not exceptional. Kavango West recorded 809 dropouts in 2024 and 1,460 the following year. Education officials point to poverty, to child-headed households, to hunger, to the long walk to the classroom, to the cattle that must be herded and the fish that must be sold. Kapumburu was one of those numbers at grade 3, and then he was something else.
He has built other things. A remote-controlled aircraft, made from scratch, that once flew out over the Kavango River and came down on the Angolan side.
He thought he was only playing. Now he sees a path opening in front of him.
His mother, Veronica Kapumburu, wept when she understood what her son had done. What she wants now is formal training for him — a place at a vocational centre, a certificate, the thing the grid and the school system have both so far withheld. The nearest technical training is in Rundu, across the regional border.
Until then, the lights in Chwagi come on because a teenager learned, radio by broken radio, how to make them.