How a 56-year-old farmer's rotten tomatoes sparked a solar-powered fix for Africa's post-harvest crisis

Mathias Charles Yabe was a first-year university student when a farmer in the Akumadan community, in Ghana's Ashanti Region, walked him through her fields and showed him what was left after a hard season's work: crates of tomatoes she couldn't sell in time, rotting before they ever reached a buyer. Roughly a third of everything she had grown, gone to waste. It was not an isolated story. Across sub-Saharan Africa, smallholder farmers routinely lose 40 to 60 percent of perishable crops like tomatoes, peppers and leafy vegetables — not because they grow too little, but because there is nowhere to keep what they grow cool enough, long enough, to get it to market.

That encounter set Yabe, who grew up in the farming village of Aboabo in Ghana's Eastern Region, on a different path. Rather than watch the problem repeat itself season after season, he built AkoFresh: a solar-powered cold storage and logistics company designed for the communities that need it most and are least likely to have it — places where the electricity grid simply doesn't reach.

AkoFresh's model is built around a simple insight: cooling is the single most effective way to slow spoilage, but conventional cold storage depends on grid electricity that rural farming communities often don't have. So AkoFresh's cold rooms, cooling trailers and even a solar-powered cooling tricycle run entirely on solar power, extending the shelf life of fresh produce from around five days to as long as 21. That's the difference between a farmer having to sell in a panic the day after harvest, at whatever price a trader offers, and being able to wait for a fair one.

The company has since expanded beyond fixed cold rooms to mobile solutions — cooling trailers and tricycles that meet farmers directly in the field, bringing the cold chain to areas where building permanent infrastructure isn't yet feasible. Alongside the technology, AkoFresh trains farmers in climate-smart agricultural practices and helps connect them to buyers, tackling not just spoilage but the market access problems that often accompany it.

The results speak to more than reduced waste. AkoFresh has helped farmers preserve more of what they grow, extend the shelf life of their harvests and earn better, more predictable incomes. It has trained smallholders in climate resilience techniques suited to increasingly unpredictable growing seasons. And by building and operating its cold storage network, it has created green jobs, particularly for women and young people, in communities where formal employment is scarce. Independent estimates suggest AkoFresh's solar cold storage could add more than US$10 million in seasonal income for Ghanaian farmers while cutting greenhouse gas emissions tied to food loss by around 15 percent.

Post-harvest loss sits at the intersection of several of the OPEC Fund's core priorities: food security, climate resilience and inclusive economic opportunity. A solution that is solar-powered, farmer-owned in spirit and built to scale in off-grid communities is precisely the kind of youth-led innovation the OPEC Fund's Annual Award for Development was designed to recognize. Yabe and AkoFresh's ambition to grow into new communities and new countries over the next several years reflects exactly what the Award's Youth Entrepreneurship category looks for: young leaders proving that the future of resilient food systems is already being built, one solar panel and one cold room at a time.