Preliminary investigation of biogenic gas production in Indonesian low rank coals and implications for a renewable energy source.

Highlights: [•] Indonesia CSG resources are in part of biogenic origin. [•] Viable methanogen consortia are present in Indonesia CSG reservoirs. [•] The consortia are capable of producing methane from Indonesian and Australian coal. [•] The CO2 reduction pathway dominates the production of biogenic methane in the study area. [Copyright &y& Elsevier]