ENERGY. RECYCLED.
Stanwell is driving industry innovation and collaboration to harness the value of Coal Combustion Products or CCPs. Every year we divert thousands of tons of CCP waste from our coal fired power stations from landfill to be used in sustainable and new ways as a resource asset - including road infrastructure, construction and agriculture.
Stanwell is a member of the Ash Development Association of Australia and the Concrete Institute of Australia.
HARNESSING COAL WASTE SUSTAINABLY
Coal combustion products (also known as CCP) are solid waste materials produced when coal is burned to generate electricity. The most common products are:
1. Fly Ash - representing up to 90% of the total CCPs produced and are widely used in the manufacture of concrete and cementitious products, increasing its strength and reducing its carbon footprint.
2. Bottom Ash - these are the larger particles that accumulate at the bottom of boilers which can be used as structural fill materials, road stabilisation and pipe bedding for infrastructure projects.
3. Cenospheres - a naturally occurring by-product of flash that has a range of industrial uses including ceramics, plastics, resins, and paints. They are small, hollow, hard-shelled, ultra-low-density spheres that float on ash storage dams.
Stanwell provides all three of these products to local industry, and is continually growing the % of waste reuse each year.
Stanwell’s Cenosphere products in particular are unique offering high compressive strength, superior colour (pure white), chemical properties and a very high heat resistance melting point.
Making CCP accessible for industry
In 2021, Stanwell commissioned a new Fly Ash Offtake Facility at its Tarong site.
The investment has enabled easier access and therefore use of Fly Ash waste in local infrastructure projects and for concrete producers.
Stanwell's ash offtake facility has the capacity to support 400,000 tonnes per annum of high-quality cement grade fly ash.
Tarong fly ash has been used in the construction of the Gateway Bridge Motorway Duplication, Clem7 tunnel, Airport Link Tunnel, City Link and the Go Between Bridge.
If you are interested in purchasing fly ash from Stanwell, please contact us here:
CCP Sales
Promoting CCP use in road construction
Stanwell is actively working with local councils and civil contractors to incorporate more CCPs into road design and construction.
In a recent project with the Ash Development Association of Australia and Capricorn Enterprise, we built and repaired our own 6m wide access road to Stanwell Power Station using CCPs with no requirement for additional crushing or screening and noticeably reducing construction time. This has served as a case study and trial for other roads in the region.
Please contact us if you would like to explore using CCPs in your next project at ccp@stanwell.com
CCPs in land use
Stanwell is actively using CCP in the Meandu Mine operations - where Fly Ash is being used to fill mine voids, prior to land rehabilitation work.