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Our position

The Zero Waste Network considers waste-to-energy incineration as an unacceptable option for waste management.

Sign our petition to oppose waste-to-energy

Incineration refers to the combustion of waste materials, resulting in ash residues and air emissions. Gasification, pyrolysis, and vitrification are variations of incineration, and waste-to-energy refers to an incinerator that incorporates technology to generate power from the heat produced during the combustion process.

Waste incinerators do not eliminate waste – in fact they generate it. Since physical matter cannot be destroyed, an incinerator actually transforms the original wasted materials (or resources) into several new forms of waste: air emissions, ash, and liquid discharge (resulting from cleaning processes within the incinerator). Incinerators reduce solid waste to approximately 10-15% of the original volume and 20-35% of the original weight, which exits the incinerator in the form of fly ash and bottom ash. These new forms are far more difficult to deal with than the original, raw wasted materials.

Incineration has many downsides, including significant negative impacts on human health (i.e. cancer), low employment, large capital investment with low return and an ongoing landfill requirement for the remaining waste left over from incineration. Mixed-waste incinerators are inefficient energy producers, capturing only about 20% of energy generated by the waste. Waste-to-energy proponents stress their energy production potential and consequent reduced use of fossil fuels without addressing a far more important issue: the huge loss of resources and energy already used to produce the material being burnt. In fact recycling plastic saves 3.7 to 5.2 times more energy, recycling paper saves 2.7 to 4.3 times more energy, and recycling metal saves 30 to 888 times more energy than is gained through incineration (Stats from A Wasted Opportunity).

Alone, among waste management options, incineration knowingly creates hazardous waste where none existed in the feedstock (municipal solid waste). 

The current situation in Aotearoa

There are potential incineration projects across Aotearoa. These are

Hokitika/Christchurch

Update June 2020

Renew Energy Limited (REL) withdraws application to store waste bales at a site in Belfast Road, Christchurch. Removal of the bales must take place by 30 September 2020.The court set the following conditions:

  • REL is to advise Environment Canterbury before it starts to move the bales.
  • The bales will be sorted and removed to either Kate Valley Landfill or a Class B landfill.
  • REL is to file a report to the court on how many bales are removed on the last working day of the month.

Environment Canterbury will continue to monitor the Spencerville site and the method of removal to ensure no adverse effects are generated or remain.The application for consent to store up to 40,000 bales at a Belfast site is on hold and we are awaiting advice from REL whether they wish to proceed with the application or withdraw it. Regardless, the bales from Spencerville will not be going there.We hope this provides some comfort to affected communities on two fronts – one, that the bales will soon be removed from Spencerville, and two, they will not be moved to Belfast.

Update: March 2020

Renew Energy seeks to store 4000 bales of waste at a site in Belfast Road, Christchurch in anticipation of building a waste incinerator. Local residents have turned out en mass to resist.

Update: February 2020

“Westland mayor Bruce Smith said he believed the company was no longer considering Hokitika as a potential site for the waste-to-energy plant, and was looking elsewhere.”

Background to the project

  • Renew Energy Limited (REL) wants to build a plant in Hokitika by 2022
  • It would burn 1000 tonnes of rubbish every day to create 28 mega watts of power, 410,000mgw of thermal energy.
  • Plant would burn 300,000 tonnes of waste a year
  • It would burn Christchurch’s construction and demolition waste, but given the volumes they require it suggests they are really targeting municipal waste from around the South Island
  • West Coast produces only 4000 tonnes of waste every year, but would be left with 10,000 tonnes of toxic fly ash from the proposed plant, which would need to be landfilled. 
  • Claims that the fly ash could be turned into a glass-like construction material using a plasma process have been rejected, because it, “was not being used anywhere in the world and was not commercially viable because it used too much energy and cost too much.”
  • Swiss waste-to-energy company Hitachi Zosen Inova had been in talks with Renew Energy until it decided to go with a Chinese partner China Tianying Inc. Renew has since said it would not be using Chinese technology but has not announced who its new European partner will be. 

Huntly

  • Project proposed by Neil Laurenson, a Cambridge businessman
  • Has initial backing of Te Waka, the Waikato Regional Economic Development Agency
    • Their 2018-2020 strategy includes investigating waste-to-energy as part of their work programme, “Investigate and develop the potential for the Waikato to be the sustainable energy and circular economy centre for New Zealand, especially in terms of: Waste to energy” (p.15)
  • Factory has been named ‘Kaitiaki’
  • Intends to import waste from around the Pacific
  • Danish engineering company Ramboll has been approached for the project
  • In 2000, the Meremere community (in the Waikato) successfully campaigned against a waste-to-energy incinerator proposed by company Olivine
  • Read more about the Huntly project here

 

Some Facts

Incinerators release dangerous chemicals

In the past, incinerators were highly polluting facilities that pumped huge volumes of toxic pollutants into our skies. It’s true that today’s incinerators are much cleaner, but they’re still not perfect. Toxins that come out of incinerators include dioxins, mercury and cadmium that can cause cancer, nerve damage and birth defects. Anyone who lives downwind from an incinerator is in danger of breathing in these dangerous chemicals. Toxins also fall on the land to be eaten by livestock or washed into our rivers, harbours and coastal waters where they can enter our food chain.

Incinerators release greenhouse gases

While these toxins are dangerous, most of the gas coming from an incinerator is carbon dioxide. The Intergovernmental Panel on Climate Change reports that each tonne of waste burnt produces up to 1.2 tonnes of carbon dioxide. As I’m sure you know, we’re looking for ways to urgently reduce our climate change emissions. Waste-to-energy incinerators work in direct competition with this goal.

Incinerators destroy valuable resources

Leaving aside air pollution, incinerators destroy valuable, non-renewable resources. Governments, businesses and communities everywhere are looking for ways to encourage people to reduce, reuse, repair, refurbish and recycle the things we use so we can conserve resources. Incineration works directly against these efforts.

Incinerators create hazardous waste

Incinerator companies regularly talk about the many uses for incinerator bottom ash (IBA), including in building, roading and construction. However, researchers have raised serious questions about IBA leaching heavy metals into the environment. Numerous studies have shown that heavy metals can be released from IBA and be washed into the surrounding environment (see footnotes 5,17-19 in linked study). This poses a particular threat because heavy metals are highly toxic even at low concentrations.

The fly ash from incineration would require a special waste landfill due to the concentrations of heavy metals. Its safe disposal usually involves additional waste miles and the need for specialist toxic waste landfill elsewhere.

Incinerators are inefficient

While incineration companies are happy to point out that the waste they burn would be sent to landfill, they don’t mention that household waste is not a very good fuel. The World Energy Council found that, kilogram for kilogram, waste produces less than half the energy of coal and less than one-third the energy of natural gas while producing many times the amount of pollution. Here in Aotearoa, we currently produce 80% of our electricity from renewable sources, and we have a plan to increase that to 100% by 2035. Waste-to-energy incinerators compete with our renewable energy goals and undermine our commitment to a low emissions economy.

Incinerators destroy jobs

A key selling point used by incinerator companies is that they create jobs. The EU social enterprise reuse, repair and recycling group, RREUSE, recently looked into that and found that for every job an incinerator creates, recycling centres create 36 jobs, and reuse activities create 296 jobs. Waste and recycling services are set to become the fastest growing sector as our country moves towards a circular economy. Incineration is not part of this shift.

Incinerators discourage zero waste efforts

As a collective of organisations committed to the principle of zero waste, we recognise incineration as one the most destructive waste management methods. While we accept that waste is a problem, we know that incinerators aren’t the answer. Waste-to-energy incineration is a non-renewable source of energy that destroys our finite natural resources. We believe we can address our waste issues in a more constructive way that preserves resources, prevents pollution and creates jobs.

Reports and useful information

  • Global Alliance for Incineration Alternatives
  • A Wasted Opportunity, Report by the Zero Waste New Zealand Trust
  • United Nations publication Waste to Energy: Considerations for Informed Decision Making  a handbook to help public officials work through the process of evaluating a WTE proposal.
  • Clean Air Baltimore – A campaign to replace Waste Incinerators with Zero Waste Jobs
  • Clean Water Action (USA) Incineration
  • Waste-To-Energy: Dirtying Maryland’s Air by Seeking  Quick Fix on Renewable Energy? Environmental Integrity Project (2011, PDF)
  • Energy Justice Network
  • North Yorkshire Waste Action Group Objection to Allerton Waste Recovery Park: Risks of Incinerator Ash
  • Waste Gasification: Impacts on the environment and public health. A technical report by the Blue Ridge Environmental Defense League http://www.bredl.org/pdf/wastegasification.pdf

Community Resources: Take action against incineration

  • Questions to Ask When Evaluating a “Waste-to-Energy” project or proposal
  • FAQ – Frequently Asked Questions about incineration (with references)
  • Our Zero Waste Future: options and opportunities for local and regional councils
  • Print version of the petition opposing waste-to-energy – gather signatures in your community to support the campaign
  • Print version of the ZWN Open letter on Incineration
  • Jobs created: reuse vs incineration infographic

 

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