| Taking Gansu Tongwei household biogas installing project as rearch object, greenhouse gas emission reduction of household biogas project was estimated by using methodology AMS I.I approved by Executive Board （EB）of clean development mechanism (CDM) under United Nation Framework Convention on Climate Change. The project involved 8 500 households in 20 towns of Tongwei County of Gansu Province, China, with average annual temperature 7.7℃. The results showed that greenhouse gas emission reduction was achieved through reducing the use of fossil fuel. The annual greenhouse emission reduction of 8 500 biogas digesters was 5 120 t CO2 and about 4.689 million RMB. Additional revenues can be paid from sale of the emission reduction, which can be used as subside for biogas digester construction and daily maintenance. With the additional revenues, the positivity of household biogas construction will be improved, which
will be contributed to facilitate the spreading of household biogas project in poverty rural areas. In addition, this study can be an example for carrying out greenhouse gas“Measurable, Reportable, Verifiable”in domestic rural household biogas sector. |
