SCIENCE AND DEVELOPMENT NETWORK
In his integrated household each of the six component parts helps the others: the fire pit, solar energy roof, greenhouse, livestock shed, biogas pool and a bathroom.
Instead of inventing new devices, he has found ways to combine existing technologies so they work more efficiently.
“For example, putting the biogas pool beside fire pit can increase biogas production,” said Liu, “because the pool can absorb heat from the pit.”
The biogas, produced from sewage and plant leftovers, is used for boiling water, cooking and lighting, while the heat from its production warms the house and the livestock shed, Liu told SciDev.Net.
Science and Development Network for more