Charcoal and other solid biomass fuels are still used in 70 percent of Sub-Saharan Africa, killing more than 4 million people annually, causing misery and depleting forests, in turn reducing rainfall and further contributing to climate change. Starting in Kenya, KOKO is driving a national-scale energy transition from charcoal, to sustainably sourced and safe to use bioethanol cooking fuel. To compete with charcoal on price and convenience, KOKO has built a vertically integrated business, from sourcing and transporting fuel, to last mile delivery with a dedicated fleet of MicroTankers. Across five cities in Kenya, KOKO has a rapidly expanding network of agents - convenience store owners - who have KOKO Fuel "ATMs", where consumers can top-up their smart-canisters with fuel. Thanks to its cashless system and its network of IoT sensors, KOKO is able to track usage and monitor for issues, in real-time right across the supply chain. This is the first example of bioethanol being used for cooking at scale. Today, over 3 million Kenyans enjoy cooking with KOKO Fuel, including ~30% of all homes in Nairobi. By displacing demand for charcoal, KOKO's technology plays a crucial role in protecting existing tropical forests. KOKO’s solution also leads to a major reduction in household air pollution, reducing the risk of respiratory diseases.