Luc Janottin, a farmer in Sonchamp, France, shows me a sack of rotten cashews their producer couldn’t sell. It goes into the methane plant that he and five farmer neighbors built for about $6 ...

The biogas-RNG upgrading facility and the PG&E interconnection unit are designed to convert the dairy biogas into utility-grade, pressurized natural gas for use as a transportation fuel. About Aemetis ...