Wagga Landfill Gas Abatement Facility

Wagga Landfill Gas Abatement Facility is a landfill gas project located at the Gregadoo Waste Management Centre, approximately 13km south of the Wagga Wagga CBD in New South Wales. Registered in August 2013, the project operates within the boundary of the Council's primary waste facility. The surrounding Gregadoo region is characterised by rural small holdings and grazing land, sitting on the edge of the major Riverina agricultural district.

The project operates under the Carbon Credits (Carbon Farming Initiative-Landfill Gas) Methodology Determination 2015. This methodology involves the installation and operation of a gas collection system that extracts methane generated by the decomposition of organic waste in landfill cells. By capturing and combusting this gas (either through flaring or electricity generation), the project converts methane, a potent greenhouse gas, into carbon dioxide, which has a significantly lower global warming potential. The project credits abatement from both legacy waste (deposited before the scheme started) and non-legacy waste.

Environmentally, the Wagga Wagga region is classified as a temperate zone with a semi-arid influence, receiving an average annual rainfall of approximately 570mm which is fairly evenly distributed throughout the year. The local terrain typically features red-brown earths and clay loams, which is relevant to the site's management as clay capping is a critical component of the landfill's gas containment strategy to prevent surface emissions.

Originally established with AGL Energy Services as the proponent, the project was transferred to the Wagga Wagga City Council in 2019. The Council now utilises the abatement from this facility as a cornerstone of its "Corporate Net Zero Emissions 2040 Strategy," retiring the generated Australian Carbon Credit Units (ACCUs) to offset emissions from its other operations. Notably, the project completed its federal carbon abatement contract (CAC216640) in May 2022. As of January 2026, the facility has faced operational disruptions due to a fire in one of the waste cells, necessitating a temporary closure of the centre to the public.