SA1 Salisbury Bioenergy Plant

SA1 Salisbury Bioenergy is the first bioenergy facility in Australia to produce mains-grade biomethane and biogenic CO2 from processed commercial and industrial organic waste.

SA1 Salisbury project will process approximately 70,000 tpa of C&I food waste, diverting it from landfill to mitigate methane emissions and generate Australian carbon credit units (ACCUs). The biomethane will be injected into Australian Gas Network’s South Australia gas network where Renewable Gas Guarantees of Origin (RGGOs) will be generated and sold to support industrial users to reduce their scope 1 emissions. The biogenic commercial-grade CO2 produced by the facility will be liquefied and sold to help reduce regional supply shortages. Without this project, landfill methane emissions would persist, and businesses would continue relying on fossil fuel based natural gas and CO2 sources, limiting decarbonisation efforts.

SA1 biomethane upgrading facility will utilise anaerobic digestion technology to process C&I food waste into biogas, which will subsequently be upgraded to the following products:

1. Renewable biomethane, injected into the natural gas distribution network;
2. Commercial grade biogenic CO2, to be sold to industrial customers;
3. Digestate, to be concentrated and sold as a liquid fertiliser product;
4. Electricity and heat generation using biogas in a combined heat and power system to power the facility, enhancing energy self-sufficiency.

The Project is to be enrolled in GreenPower’s Renewable Gas Certification scheme with the biomethane and associated RGGOs to be purchased by industrial users to reduce scope 1 emissions associated with natural gas usage at manufacturing facilities. Biogenic CO2 produced by the facility will be liquefied and sold to customers to help reduce regional supply shortages.

Key Outcomes

• Demonstrates biomethane as a clean alternative for industrial process heat
• Supports commercial uptake of renewable gas through value stacking
• Creates local jobs and supports regional supply chains
• Shares learnings to support industry growth

Funding

Acknowledgement:

This project received funding from the Australian Renewable Energy Agency (ARENA) as part of ARENA’s National Industrial Transformation Program.