Prof. Dr. Klaus Töpfer, Patron of atmosfair
"save the climate by going atmosfair"
Kenya: Biogas from cow dung
|Total savings:||15,000 tonnes CO2 per year|
|Technology transfer:||Biogas units for the energy supply of households|
|Local environment:||Replaces wood, gas and kerosene, prevents deforestation, and produces the useful by-product slurry (fertile liquid manure)|
|Further advantages:||Creates jobs in the construction and maintenance of the biogas units|
|Project partners:||Sustainable Energy Strategies (SES), Action for Food Production (AFPRO)|
With 68% of the total energy consumption by household, biomass is the most important energy resource in Kenya, as it is in many other African countries. In rural areas the consumption of fuel wood is as high as 80%.
The project is carried out in the Nairobi River Basin, which is located west of Kenya’s capital. Thousands of dairy farmers, each with two or three cows on their property, live in this area. On average, these farmers consume over ten kilograms of firewood per day, mainly for cooking. The high demand for firewood poses a serious threat to the surrounding forests. If the overexploitation of this resource continues, firewood will become increasingly scarce and negatively affect local biodiversity. In addition to firewood, people in the project area also use kerosene and gas for cooking.
In order to reduce consumption of firewood, gas and kerosene, the atmosfair project will supply small biogas units (2-3 m³) to the dairy farmers in the area that produce regenerative biogas. The biogas units run on cow dung and other agricultural wastes. During the process of biogas generation, slurry is produced as a by-product. Due to its high nutrient content, farmers can use this by-product as an agricultural fertilizer. To operate the biogas units optimally, every household must own at least two cows.
The biogas units are being built and installed by atmosfair, the Kenyan organisation Sustainable Energy Strategies (SES) and the Indian NGO Action for Food and Production (AFPRO). In addition, AFPRO is training local masons to build biogas units independently. Furthermore, the installations will be constructed exclusively using local products.