Ti Tree Energy Generation Project

Ti Tree Energy Generation Project is an electricity generation from landfill gas project located at Willowbank, approximately 15km south of Ipswich in South East Queensland. It was registered in July 2015. While the specific project area size is not strictly defined in the provided data, the facility itself occupies a 37 million cubic metre void left over from a previous open-cut coal mining operation. The surrounding regional land use historically featured open-cut coal mining, grazing, and agriculture, but has increasingly transitioned to heavy industrial activities and waste management. The South East Queensland region typically experiences a sub-tropical climate with moderate to high rainfall. Native soils in the region are predominantly clay and duplex profiles, though the immediate project site is highly modified due to historical extraction activities.

Electricity generation from landfill gas projects involve capturing the fugitive methane emissions produced by decomposing organic matter in a landfill and combusting it in a generator to produce electricity. Standard requirements for this methodology mandate continuous monitoring of the volume and methane concentration of the captured landfill gas, alongside regular metering of the generated electricity to accurately calculate the baseline and project emissions offsets. This process prevents methane, a potent greenhouse gas 28 times more effective at trapping heat than CO2, from entering the atmosphere while simultaneously displacing fossil-fuel-derived energy from the local grid.

This project transitioned from a revoked Carbon Farming Initiative (CFI) method and continues to capture and combust gas generated from both legacy and non-legacy waste. Operated by Veolia Environmental Services in a joint venture with JJ's Waste & Recycling, the Ti Tree Bioenergy facility utilizes advanced "best practice" bioreactor technology to rapidly stabilize incoming waste. Over its lifespan, the project originally operated under older capture and combustion determinations but was recently updated in 2022 to the 2021 Electricity Generation from Landfill Gas methodology. Additionally, the project held an abatement contract with the Clean Energy Regulator, which was completed in late 2021 after successfully delivering significant volumes of carbon abatement to the Commonwealth.