Solid Waste to Energy (W2E)
- Solid fuel is converted into heat via clean processing technologies including combustion, pyrolysis or gasification.
- The heat is transferred to the power generation system via a suitable fluid, such as steam, pressure hot water, glycol, thermal oil, etc.
- The heat is used for power generation using gTET’s revolutionary Organic Rankine Cycle (ORC) generator
- Solid fuels include any materials that have a calorific value. Organic materials (or biomass) that can be demonstrably renewable based, such as timber or agricultural, result in the power station being classified as ‘renewable power’.
- If the site also requires heat (e.g. drying), the power station can also be configured as Combined Heat & Power (CHP), delivering low grade heat for other processes.
- The power stations are typically designed for minimal operating expense (OPEX) by avoiding regulated conditions such as full time manned high pressure steam turbine plants.
Case Studies
Solid W2E Case Study: Australian Tartaric Products
Location:
Industry:
Fuel:
Thermal Process:
Power Generation
Economics:
Colignan (near Mildura) in regional Victoria Australia
Food, tartaric acid and alcohol
Spent grape marc from regional vineyards and wineries
Combustion of the biomass to produce 10bar steam in a 8MWth boiled
600kWe gTET ORC Generator with air condensing. Zero export grid connection
Power savings in excess of AU$500k pa plus renewable energy credits.
Solid W2E Case Study: Auswest Timbers
Location:
Industry:
Fuel:
Thermal Process:
Power Generation
Economics:
Manjimup, WA, Australia
Timber
Sawdust & Chips
Combustion of the biomass to produce 8bar steam
170kWe gTET ORC Generator with air cooling. No export grid connection
Power savings in excess of AU$70k pa
Solid W2E Case Study: Jeffries Group
Location:
Industry:
Fuel:
Thermal Process:
Power Generation
Economics:
Buckland Park (Adelaide), SA, Australia
Waste
Green and Garden Waste
Pyrolysis of the biomass to produce 13bar steam
300kWe gTET ORC Generator with water cooling. Export grid connection
Power savings/sales in excess of AU$100k pa
Solid W2E Case Study: Veolia Australia
Location:
Industry:
Fuel:
Thermal Process:
Power Generation
Economics:
Dry Creek (Adelaide), SA, Australia
Waste
Medical waste and contraband
Combustion of the biomass to product 150°C hot water
200kWe gTET ORC Generator with water cooling. Export grid connection
Power savings in excess of AU$70k pa
Solid W2E Case Study: Sokcho Municipal Waste
Location:
Industry:
Fuel:
Thermal Process:
Power Generation
Economics:
SokCho City, South Korea
Waste
Municipal Waste
Combustion of the biomass to produce superheated steam
400kWe Condensing steam turbine cascaded with 170kWe ORC generator. Export grid connection
Power generation around AU$80k pa