Kenya's power grid already runs mostly on renewables, but 25% of communities lack centralized electricity. To achieve universal energy access by 2030 without increasing emissions, the nation is turning to off-grid solar. The economics have improved dramatically: a panel that cost about $3 per watt a few years ago now costs just cents. This shift is empowering local entrepreneurs.
From Diesel to Sunshine: A Nairobi Story
On the outskirts of bustling Nairobi, Milcah Wanjiru runs a small shop with a grain mill at its heart. Most mills in low-income neighborhoods burn diesel, but hers runs on solar power or grid electricity. This switch saves her up to 80% in operating costs compared to diesel models, according to Matt Carr, CEO of Agsol, the company that designed her mill. Wanjiru has been using the machine since December 2025 and appreciates that it can handle small batches, attracting new customers. The initial investment of about $1,300 pays off in six to twelve months.
Sponsored Protocol
Agsol launched its first product in 2018 and has raised over $4 million, largely through a UK government clean energy program. Last year, the company sold 530 units and received orders from as far as Mozambique and Angola. Carr notes that while diesel-powered mill owners spend about 40% of revenue on fuel, solar-powered mills can be up to 80% more profitable. Off-grid solar is not just an environmental choice but a smart business decision. For more on green innovations, check out our article on the Green Revolution with solid-state air conditioners and AI-designed animal drugs. Learn more about solar energy in Africa on Wikipedia.
Sponsored Protocol
Source: https://www.technologyreview.com/2026/06/17/1138600/entrepreneurs-nairobi-case-for-going-solar
