Kenyan farmer Yvonne Anyonyi Mumiah works diligently between her rows of rosemary, basil, and other crops aimed at European supermarkets. Her fears about transport delays and extreme heat affecting her harvests have diminished. Thanks to a solar-powered cool storage service, she can now keep her produce fresh. This service, offered by cold-chain company SoKo Fresh, operates on a pay-per-use model, charging farmers based on the weight stored. It’s part of a growing trend in Africa where solar-powered cold storage helps prevent food spoilage.
The Food and Agriculture Organization estimates that up to 40% of food produced in Africa is lost between harvest and market. This loss occurs mainly due to poor storage, transport, and processing infrastructure. Solar power offers a solution by keeping goods fresh for the market. Solar-powered cold rooms, warehouses, and cooling hubs allow farmers and traders to preserve perishable goods without relying on expensive and unreliable electricity grids. This change is taking root in countries like Kenya, Nigeria, Ethiopia, Rwanda, and South Africa.
“The biggest challenge was preserving the quality after harvest,”
said Mumiah. Most smallholder farmers, like her, cannot afford the $30,000 upfront cost for a solar-powered cold storage unit. Mumiah emphasizes the importance of proper storage, noting the flexibility it provides. Farmers are no longer forced to sell immediately out of fear of spoilage. They can now wait for collection while maintaining quality.
As climate change, rising temperatures, and supply chain disruptions strain food handling systems, cooling technology becomes increasingly crucial. Countries such as India, China, Japan, the Netherlands, and the United States have sophisticated cold-chain networks. These networks allow fresh produce to remain marketable for weeks. In Africa, many farmers lack access to cooling facilities and must sell immediately after harvest, often suffering significant losses. Rising temperatures worsen the problem since they speed up spoilage for vegetables, fruits, dairy products, and fish. The unreliability of electricity makes conventional refrigeration costly or impractical.
“Cold storage remains one of the missing links in Africa’s agricultural value chains,”
said Emmanuel Aziebor, regional director for Africa at CLASP, a nonprofit organization. He explained that with proper storage, farmers can access better markets, reduce waste, and increase incomes. Solar power accelerates improvements in supply chains. SoKo Fresh reports spoilage rates dropping from 50% to under 2%, while farmer earnings increase significantly. In Nigeria, companies like ColdHubs offer solar-powered walk-in cold rooms where farmers and traders rent space daily.
This model avoids the need for expensive equipment investment. In Rwanda, solar-powered refrigeration supports dairy cooperatives and enhances milk collection. Ethiopia is expanding cold-chain investments to boost horticultural exports, a fast-growing agricultural sector. Analysts note these innovations play a vital role as African countries strive to improve food security and cut greenhouse gas emissions. Traditional cold storage usually relies on diesel generators, especially in areas with unstable electricity. Solar-powered alternatives reduce fuel consumption, operating costs, and emissions.
Experts argue the most significant benefit is economic rather than environmental. Despite development efforts focused on expanding electricity access across Africa, attention to using electricity productively has been lacking. Millions of households have gained power, but using that power to create opportunities remains underexplored.
“We have neglected the conversation around how people can turn electricity into opportunity,”
Aziebor stated. While electrical infrastructure extends, its economic benefits often remain untapped.
Solar technology extends beyond cold storage across Africa. Solar-powered irrigation systems help farmers cultivate year-round. Solar milling machines and processing equipment add value to agricultural products closer to where they are grown. Funding remains a key challenge. Carol Koech, vice president for Africa at the Global Energy Alliance for People and Planet, mentions the need to build projects that attract investment and scale across countries. Grants, low-interest loans, and donor support can help cover initial costs. However, attracting commercial investment poses difficulties because many agricultural markets are fragmented and dominated by small producers.
“These investors see emerging technologies as high risk because we lack enough proven business models with reliable returns,”
said SoKo Fresh CEO Denis Karema. Consequently, funding for these projects often becomes expensive.