Global Leading Technology

East Rockingham Waste to Energy has selected Hitachi Zosen Inova (HZI) as our technology provider. HZI is a global leader in the delivery of waste to energy solutions. The Swiss company has been operating since 1933 and has over 500 reference plants. This includes 13 projects in the United Kingdom currently operational or under development.

HZI is a turnkey supplier of waste to energy solutions meaning they design the whole system including moving grate, boiler, air quality control system and bottom ash treatment plant, ensuring that all components integrate together with typical Swiss precision. Acciona and HZI have been awarded the EPC contract and are subject matter experts with the balance sheet strength to support material delivery and performance guarantees required under the contract.

The East Rockingham Waste to Energy project will be HZI’s first in the Australian market. To ensure the project’s success the company will not only provide the technology, they will also operate the facility under a long term contract with global waste management company Suez.

The Process

Put simply, waste to energy is the best available method of treating residual waste streams and East Rockingham has selected the best available technology provider. Modern waste to energy plants like East Rockingham deliver a clean and efficient way to recover energy from residual waste.

Divert Waste
from Landfill

Generating 28.9MW
of electricity per hour

50% deemed
renewable energy



Overall facility benefits

Waste has embodied energy and the ERWTE project will generate 228,000 MW/h of electricity from 300,000 tonnes of waste per annum. That is enough to power 36,000 Perth homes. In 2016-17 Perth residents on average generated 30kg’s of waste each per week. That 30kg’s of waste contains enough energy to power a laptop for 3 hours a day for six months.
Waste management contributes around 2.2%to the National Greenhouse Gas Inventory in Australia. By diverting 300,000 tonnes of waste from landfill and offsetting fossil fuel consumption to generate 228GW of electricity, the project will save more than 300,000 tonnes of CO2-e per annum. That’s the equivalent of taking 64,000 cars off Perth’s roads every year for the life of the project.
Landfilling waste contaminates land and groundwater and leaves long term environmental liabilities for the generations that follow us. Waste plastic photodegrades and creates microplastics that are contaminating the world’s oceans. Waste to energy provides a sink for waste plastic and eliminates microplastics from the environment.
In a circular economy the value of products and materials is maintained for as long as possible; waste and resource use are minimised, and resources are kept within the economy when a product has reached the end of its life, to be used again and again to create further value. Residual waste by definition has come to the end of its useful life. Extracting energy from residual waste ensures it makes a final contribution to the circular economy. Residual waste also contains inert materials such as sand, bricks, glass as well as ferrous and non-ferrous metals. These materials remain after the thermal decomposition of the waste as incineration bottom ash or IBA. The ERWTE project will recover these materials on site in our IBA Treatment plant and return them to local markets to maintain their value in support of the circular economy.
In addition to the 500 jobs generated during construction, there will be approximately 50 full time jobs for the 30-year operational life of the project. Waste to energy, like recycling creates long term jobs for local communities.
9,000,000 tonnes of waste will be diverted from landfill over the projects 30-year operational life. Landfilling waste should be avoided for the following reasons:
  • Methane Generation: organic material in landfills breaks down and emits methane. Methane is a potent greenhouse gas 26 times more effective than CO2 at trapping heat in the atmosphere.
  • Contamination of groundwater: particularly when located on the Swan Coastal Plain where we extract Perth’s drinking water.
  • Contamination of land: creating a long-term environmental liability.
  • Odour emissions.
The ERWTE project will incorporate a state of the art $10m incinerator bottom ash aggregate (IBAA) plant to manufacture recycled aggregates. Incinerator bottom ash aggregate (IBAA) is a heterogeneous material which contains concrete, ceramics, glass, brick, clinker, some metals and fused material particles. IBAA has been an accepted and widely used sustainable aggregate both in the UK and in Europe for many years. Over five million tonnes has been used as sub-base and capping material in numerous applications over that 10 year period. ERWTE is partnering with Curtin University to research the best IBAA reuse opportunities for local Perth markets.
The community is the number 1 stakeholder in any waste to energy project. During the development of the project the local community was engaged through the environmental and development approval process, open days, presentations and through the media. Once operational the site will be open for tours and open days with a focus on waste education. Our website will also be regularly updated to communicate the environmental performance of the project.

Worldwide Facilities

Modern cities of the world have incorporated waste to energy as an important part of their sustainable waste management practices. Many of the projects completed by HZI are located in the middle of some of the worlds biggest cities. This expertise was central to ERWTE choosing HZI as our technology provider.

London (Riverside)

Located on the Thames River in the heart of London, this 585,000 tonne facility receives waste from barges.

Paris (Issy-les-Moulineaux)

The Isséane energy-from waste facility is located in a densely populated Parisian suburb on the banks of the River Seine with a view of the Eiffel Tower.


Located on Poolbeg Peninsula in Dublin to recover energy from municipal waste. This 600,000 tonne facility provided energy to 80,000 Irish homes.

Discover more about Waste to Energy technology

call +61 8 6555 5293 or email

“The future depends on what we do in the present.”​

- Mahatma Gandhi​

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