Energy recovery

Energy recovery

The City of Cockburn aims to lead and support a community that avoids waste generation, reduces environmental impacts and considers the waste produced as a valuable resource to be recovered, reused and recycled utilising the latest technologies available.

Energy recovery facilities recover some of the energy stored in waste and feed it back into a power grid helping to reduce greenhouse gas emissions and diverting waste from landfill.

The City of Cockburn has entered into an agreement with HZI Australia Pty Ltd to deliver the contents of residential general waste bins to a new energy recovery facility in East Rockingham.

The facility is one of two energy recovery facilities soon to be operating in Western Australia and are the first large-scale energy recovery plants to be built in Australia. Once fully operational, the  East Rockingham and Kwinana plants are expected to have a combined generation capacity of 66 MW and produce over 500,000 MWh of electricity, enough to power 91,000 Perth homes for the life of the projects (which is nominally 30 years).

While the energy recovery facility is an important component in the City’s zero waste to landfill strategy, it is the last and least preferred option.

Waste avoidance remains the highest priority in our Waste Management Hierarchy and we will continue to work with our community to avoid, reuse and recycle as much as possible.

Frequently Asked Questions (FAQs)

Why did we choose energy recovery rather than landfill?

Sending waste to landfill is the least favourable method of disposal, as any value from the materials is permanently unrecoverable.
Energy recovery allows the energy within materials to be captured and converted to electricity. Bottom ash produced during this process may also be recycled.

Where is the energy recovery plant?

The East Rockingham plant is located at 26 Office Road on the northern end of the Rockingham Industry Zone (RIZ). 

What type of waste will be processed at the plant?

The energy recovery facilities will receive residual waste from contracted local governments, and waste from commercial businesses.

Residual waste is the remaining waste once all possible means to recover resources, including through garden organics, co-mingled recycling and Containers for Change, are exhausted.

Hazardous waste including batteries, gas bottles, tyres, medical waste, e-waste and foam, vinyl and large metal objects are not accepted. These items can be dangerous or affect the quality of the facility outputs.

What can go in my general waste bin?

The move to energy recovery processing will not change what goes in general waste bins, however it is important to remember this bin is the last option.

Waste avoidance and waste sorting remains an essential step to avoid and recover materials for reuse and recycling[MC1] . Use your kerbside recycling bin, green organics bin, Containers for Change, and drop-off locations for items like e-waste and hazardous waste.

With a bit of waste sorting at home, general waste bins could be almost empty each week. Check the how to use your bin page for a list of what can go in your general waste (red lidded) bin. 
 

Will this cost me more in my rates?

As a customer of HZI, the City has an agreed disposal price which means costs are fixed to the CPI of each year.

What are the by-products and are they hazardous?

Material recovery from the process includes Incinerator Bottom Ash (IBA) which can be used to create a manufactured IBA aggregate (IBAA). IBAA can be used in making building blocks and road sub-base.

Additionally, non-ferrous and ferrous metals will be recycled. Ferrous metals will be recycled using local scrap metal recycling companies and non-ferrous metals will be recovered and separated to maximise their value. Fly ash (5-20% of the total ash) from the plant is sent to an approved Class 1V landfill site for disposal.

What are the environmental implications of an energy recovery plant?

The facility adheres to strict air quality standards set by the Environmental Protection Authority (Western Australia) in accordance with the EU Industrial Emissions Directive (2010/75E). This includes continuous emissions monitoring.

More information and contact

If you have any further queries, contact the City's Waste Education Coordinator on 9411 3444.

Contact

Address

City of Cockburn
Whadjuk Boodja
9 Coleville Crescent,
Spearwood 6163

PO Box 1215, Bibra Lake DC,
Western Australia, 6965

Office opening hours:
8.30am to 4.30pm
Monday to Friday (excluding public holidays)

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Cockburn Nyungar moort Beeliar boodja-k kaadadjiny. Koora, yeyi, benang baalap nidja boodja-k kaaradjiny.
Ngalak kaditj boodjar kep wer kaadidjiny kalyakool yoodaniny, wer koora wer yeyi ngalak Birdiya koota-djinanginy.

City of Cockburn acknowledges the Nyungar people of Beeliar boodja. Long ago, now and in the future they care for Country.
We acknowledge a continuing connection to land, waters and culture and pay our respects to the Elders, past and present.