GSWT Brings you Vision Waste

By taking waste destined for landfill, GSWT has the capacity to sort and direct materials that can be viably recycled. The residual waste is utilised in the waste-to-energy (WtE) gasification process to generate heat, steam, or electricity.

Currently waste from commerce and industry sectors is not sorted and goes directly to landfill, largely due to cost imperatives. GWST is offering a viable solution with economic, environmental and social benefits.

The ENERGOS AS technology uses a 2 stage gasification process which operates at constantly low emission levels, by using a thermal conversion process, which involves:

• Advanced pre-treatment, with further recovery of metals and other commercially valuable materials.
• Gasification technology to facilitate the manufacture of a syngas for use as a fuel in the heat generation process. Waste is introduced into an oxygen starved environment to produce a syngas, then into a secondary chamber where it is combusted to produce heat.
• Hot flue gas entering a high recovery steam generator produces steam at 40 bar for heat, steam or electricity generation with approximately 40 MW energy produced (11MW Power).
• A bottom ash product results, with a range of civil construction applications.
  Low impact process treatment and engineered management of emissions falls well within EU emission guidelines.

This process is flexible and can be adjusted for changes in the composition of residual waste or in the type of waste fractions being treated.

While waste-to-energy is an important part of the waste industry in Europe, Australia lacks an established market. GSWT and its partners are working to educate policy makers, communities and the wider waste sector on the benefits of generating energy using waste.

Converting waste to energy is a commercially viable way to provide certainty and improvement in economic, environmental and social outcomes for the treatment of waste streams destined for landfill. It operates at a municipal level and is easily replicable in other locations.
These facilities can reduce the residual waste sent to landfill by at least 80%, and up to 100%, significantly reducing environmental impacts and offering operational and financial benefits.. This supports transition to a true circular economy and 2050 zero carbon targets.

• Low and stable emissions under the EU limits adopted by EPA Victoria .
• Lower emissions from collector vehicles due to reduced transport distances.
• Low visual, odour, and acoustic impact, due to the small building footprint, and the unique process.
• Methane gas emissions from landfills eliminated.
• Reliance on landfill sites reduced, resulting in more productive use of land, and benefiting surrounding areas.
• Supports the Circular Economy in line with all levels of government future waste policy.
• Reduced demand on resources, reduced waste.
• Assists governments in exceeding progress measures in recycling. E.g. would achieve outcomes which exceed these ‘Recycling Victoria’ progress measures:
  • 1. Divert 80 per cent of waste from landfill by 2030, and an interim target of 72 per cent by 2025.
  • 2. Cut total waste generation by 15 per cent per capita by 2030.
  • 3. Halve the volume of organic material going to landfill between 2020 and 2030, with an interim target of 20 per cent reduction by 2025.
• Aligns with the United Nations Sustainable Development Goals, including Goal 8 (‘promote sustained, inclusive and sustainable economic growth’) and Goal 12 (‘ensure sustainable consumption and production patterns’).

• The proprietary control system ensures emissions are consistently low and stable, demonstrating world-class efficiencies with many parameters below the 10th percentile of emission limits.
• The minor process treatment required provides low impact emissions, well within the EU emission guidelines.
• The technology is proven, with almost 1,000,000 operating hours of plant reference data.

• Financial modelling demonstrates a very profitable project and sound business case.
• Existing plants are commercially successful, with low operating and maintenance costs.
• The plant produces renewable baseload power, helps achieve Renewable Energy Targets (RETs), and enhances income streams.
• Energy recovered from the biomass content is not subject to the Climate Change Levy (CCL).
• Energy recovered from the biodegradable fraction of waste is exempt from CO2 emissions under the EU Emissions Trading Scheme (ETS).
• Pre tax Internal Rate of Return (IRR) calculated at 14% based on a gate fee of $240.00/ tonne (2024).