Alternative waste treatment processes in Kenya

This project provides a verified carbon credit that can be retired on purchase.

East African cities like Nairobi collectively generate over 1.5M tonnes of organic and sanitation waste yearly which decays and releases methane. This poor management of waste drastically worsens climate change and pollutes underserved communities, particularly urban informal settlements. Sanergy addresses this by collecting sanitation and organic waste from across Nairobi and transforming it into low-carbon agricultural products and renewable fuel, creating social, economic, and environmental benefits

We selected the Sanergy project because it exemplifies our commitment to innovative solutions that address climate change and support underserved communities. By transforming untreated waste into low-carbon agricultural products and renewable fuel, Sanergy not only reduces methane emissions but also provides sanitation services to Kenya’s most vulnerable communities as well as produces valuable resources for local farmers. This holistic approach aligns with our rigorous project selection criteria, ensuring meaningful environmental and social impact.

It begins by gathering organic and sanitation waste from across Nairobi. Sanitation waste is collected through a network of toilets that Sanergy operates in the city’s informal settlements. The waste is pre-treated with black soldier fly larvae, who consume it and leave behind a residue. The residue is then mixed with fresh organic waste and composted to produce organic fertilizer. Additionally, the residue can be compressed into biomass briquettes, a portion of which is used on-site. The remaining briquettes are sold to local industries.

Sanergy monitors methane reductions based on carbon methodology ACM0022 and has them verified by Verra, the world’s largest carbon credit registry. Furthermore, they track the number of people using their sanitation facilities, the tonnage of sanitation and organic waste collected, and the amount of insect protein, fertilizer, and briquettes produced. The project's outputs directly reduce emissions, recycle waste into sustainable resources, and improve sanitation for over a quarter-million people in Kenya’s informal settlements

13 May 2025

Nairobi, Kenya