IDA PSW provides grants or low-interest loans to help finance the development and deployment of biogas production technology for smallholder farmers in developing countries. The technology uses livestock manure to produce clean cooking fuel and organic fertilizer for farmers, providing economic and environmental benefits but also risks if the technology does not work locally or farmers are unwilling to adopt it. IDA funding could help reduce these risks and make the biogas plants affordable, thereby attracting more private investors to support taking the technology to scale.