Solar-Powered Cold Storage Transforms Agriculture in Africa

Kenyan farmer Yvonne Anyonyi Mumiah strides through her fields of rosemary and basil, destined for European markets. Her main concern used to be spoilage from transport delays and heat. Now, she depends on a solar-powered cooling service offered by SoKo Fresh. This pay-per-use service charges farmers based on the weight of stored produce, joining a trend across Africa towards solar-powered cold storage to combat food spoilage. The Food and Agriculture Organisation estimates that up to 40% of food in Africa is lost post-harvest due to inadequate storage and transport infrastructure.

Solar-powered, off-grid cold storage solutions like cold rooms, warehouses, and cooling hubs allow African farmers and traders to preserve perishables without costly, unreliable electricity grids. These systems are gaining traction in countries like Kenya, Nigeria, Ethiopia, Rwanda, and South Africa. Mumiah expresses relief, sharing that prior to using cold storage, she would often lose both product and income due to spoilage. Now, the flexibility provided by solar-powered storage means not rushing to sell immediately after harvest, preserving quality and waiting for optimal collection times.

In Africa, farmers face significant challenges. Unlike countries such as India, China, Japan, the Netherlands, and the United States—where sophisticated cold-chain networks allow produce to stay marketable for extended periods—African farmers typically lack access to cooling facilities. This results in immediate sale post-harvest and significant losses. Rising temperatures exacerbate these challenges, accelerating the spoilage of fresh produce. Emmanuel Aziebor from CLASP highlights the absence of cold storage as a missing link in African agriculture, suggesting that storage improvements could reduce waste and increase earnings.

Soko Fresh reports reducing spoilage rates from up to 50% to under 2% for its clients, simultaneously boosting earnings by up to 50% per kilogram. In Nigeria, companies like ColdHubs provide solar-powered, walk-in cold rooms for farmers and traders to rent, eliminating the need for costly equipment investments. Ethiopian horticultural exports benefit from expanding cold-chain investments, and Rwandan dairy cooperatives utilize solar refrigeration for better milk collection. These innovations are critical for improving food security and reducing emissions, especially since traditional systems often rely on diesel generators with high emissions.

The economic benefits are enormous. While much focus has been on electricity access, the potential for turning electricity into economic opportunity has been underexplored. Solar-powered irrigation and processing equipment help farmers add value to local products. Funding, however, continues to be a barrier. Projects need to attract substantial commercial investments, yet the fragmented nature of agricultural markets poses a risk. Carol Koech from the Global Energy Alliance for People and Planet insists the current challenge is securing enough bankable projects.

Grants, low-interest loans, and donor support can help overcome funding obstacles, though attracting commercial investments remains tough. Investors often view emerging technologies as high risk, making it expensive for projects like SoKo Fresh. According to CEO Denis Karema, more proven business models with reliable returns are needed.

Note: The Associated Press’ climate and environmental coverage is funded by several private foundations. AP’s standards and funded coverage areas are detailed on AP.org.