Wyemo Biogas Project

Wyemo Biogas Project is an Animal Effluent Management project located in the Darling Downs region of Queensland, approximately 30km southwest of Warwick [1]. It was registered in May 2022, and while the exact project area size is unknown, the surrounding region is well known for extensive cropping, grazing, and intensive livestock operations such as large-scale piggeries [1, 3].

Animal Effluent Management projects reduce greenhouse gas emissions by capturing biogas (primarily methane) generated from decomposing agricultural waste, such as piggery effluent. The collected methane is then combusted in a generator or flare, converting it into less potent carbon dioxide and often producing usable renewable energy in the process [1].

The Darling Downs region typically experiences a sub-humid climate with summer-dominant rainfall. The local environment is characterised by heavy, black cracking clay soils known as vertosols, which are highly fertile and support the area's strong agricultural sector [1, 2].

The Wyemo Biogas Project collects and combusts methane generated from animal effluent at an emissions destruction treatment facility [1]. In June 2026, the project underwent a methodology variation to align with the Carbon Credits (Carbon Farming Initiative, Animal Effluent Management) Methodology Determination 2019 (Compilation No. 2) [1]. The project proponent, Cefn Energy Pty Ltd, is closely affiliated with Cefn Pty Ltd, an enterprise that manages major piggeries in southern Queensland, including the 55,000 Standard Pig Unit (SPU) Wyemo Piggery near Glenarbon [3, 4]. By integrating biogas technology, the proponents are able to sustainably manage intensive agricultural waste while significantly reducing their operational carbon footprint.