This solution, whose implementation began in 2009, consists of using cow manure to generate biogas through household biodigesters, supported by the Kenya Biogas Programme. Its objective is to help local farmers reduce their dependence on firewood and fossil fuels as energy sources, thus reducing both the economic expenses for families and the impact on local forests resulting from fuelwood harvesting.
Nyandarua County is located in central Kenya, just north of the capital, Nairobi. The county is home to the Aberdare Range, a mountain range with beautiful valleys and striking waterfalls. However, the area is experiencing the negative effects of climate change, such as increasing temperatures and changes in weather patterns, and the county faces both prolonged dry spells and flooding caused by intense rain events.
Crop productivity in Nyandarua County is low and is linked to a high incidence of pests and diseases and other climate-related risks, especially heavy rainfall or lack thereof. The majority of the people in this community are engaged in dairy farming, an activity that is greatly affected by periods of drought, resulting in shortages of water and pasture for the animals. Therefore, the implementation of household biodigesters has been identified as a key opportunity for farming families to produce their own energy for cooking and other uses, to increase the productivity of their farms, and to reduce additional impacts on the already vulnerable forests.