Wagga Landfill Gas Abatement Facility

Wagga Landfill Gas Abatement Facility is a landfill gas abatement project located at the Gregadoo Waste Management Centre, approximately 4km south of Wagga Wagga in New South Wales. Registered in August 2013, the project operates over the footprint of the active landfill, though a specific project area size is officially unlisted. The Wagga Wagga region is situated in the Riverina, an area traditionally known for extensive agricultural land uses such as sheep and cattle grazing, as well as wheat and canola cropping. The local environment features a temperate to semi-arid climate with moderate rainfall of roughly 570mm annually, and the regional soils are largely characterised by red-brown earths and clay loams.

Landfill gas projects involve the installation of gas collection infrastructure to capture and combust methane emissions naturally produced by decomposing organic waste. The captured gas is generally flared or converted into renewable electricity, preventing potent greenhouse gases from entering the atmosphere. This specific facility transitioned from an earlier methodology to the Carbon Credits (Carbon Farming Initiative-Landfill Gas) Methodology Determination 2015 (Compilation No. 1), and continues to capture and combust methane generated from both legacy and non-legacy waste at the site.

The project was initially contracted in April 2015 with AGL Energy Services Pty Limited serving as the proponent, but the role was officially varied to the Wagga Wagga City Council in July 2019. A significant carbon abatement contract (CAC216640) tied to the site was completed in May 2022. As the site looks to the future, Wagga Wagga City Council's Gregadoo Waste Management Centre is currently undergoing a long-term master expansion plan. This includes land acquisitions, partially prompted by the Humelink Energy project, and the construction of a new Special Waste Cell to manage hazardous materials, ensuring the landfill has the capacity to serve the growing municipality for the next 50 years.