The Shaanxi Mothers' Environmental Protection Volunteer Association has installed 1,294 biogas plants in rural farming households in the Shaanxi Province of China since 1999. The plants produce biogas from pig and human waste.
ASHDEN (2006): Fuel, compost and sanitation from biogas in rural China. London: The Ashden Awards for Sustainable Energy URL [Accessed: 13.04.2010]