This is a small capacity plant that requires 1.5 basins of cow dung per day. It will give the user approximately 2 hours of cooking and 4 hours of lighting based on one stove and one lamp. However you can get more cooking or lighting if not used simultaneously.
Suitable if user has 1 cow on zero grazing.
This is a small-medium capacity plant that requires 2.5 basins of cow dung per day. It will give the user approximately 4 hours of cooking and 4 hours of lighting based on one stove and one lamp. However you can get more cooking or lighting if not used simultaneously.
Suitable if user has 2 cows on zero grazing.
This is a medium capacity plant that requires 3.5 basins of cow dung per day. It will give the user approximately 6 hours of cooking and 5 hours of lighting based on two stoves and two lamps. However you can get more cooking or lighting if not used simultaneously.
Suitable if user has 2-3 cows on zero grazing.
This is a large capacity plant that requires 5.5 basins of cow dung per day. It will give the user approximately 7 hours of cooking and 5 hours of lighting based on two stoves and three lamps. However you can get more cooking or lighting if not used simultaneously.
Suitable if user has 4 or more cows.
2. Solid State Digesters (SSD)
This type of bio-digester is suitable for water stressed areas. It requires minimum water compared to the regular bio-digester and costs approximately 30% more. Sizes start at 9 cubic meters and above.