This project involves installing biogas systems in rural Indian households to generate a sustainable energy source that can be used for cooking instead of firewood. These domestic biogas systems feature a fixed underground digester chamber made from locally available brick with an additional layer of cement mortar forming the roof. They are fed with manure, which is easily available for rural families who usually keep animals like goats. As the manure ferments, it releases methane, which is captured for cooking and heating water. The by-product, slurry, is used as an organic fertiliser for the families crops, making an efficient circular system.