The New Zealand Steel project is a transformative endeavour that aims to revolutionise steel production in New Zealand and is a symbol of the government’s commitment to achieving net carbon zero by 2050. At its core, the project involves the construction of a new $300M Electric Arc Furnace, which will facilitate the transition from coal to electricity by recycling scrap steel.

This shift towards renewable energy sources in the industrial sector is crucial in aligning with New Zealand’s commitment to net zero carbon by 2050. By reducing carbon emissions, the NZ Steel project sets an example for other industries, demonstrating the feasibility and benefits of embracing sustainable practices.

The significance of the NZ Steel project is directly aligned with the government’s sustainability goals.

By transitioning from coal to electricity via recycling scrap steel, the project will substantially impact carbon emissions and air pollution in New Zealand. The government estimates that 800,000 tonnes of pollution will be eliminated annually from the atmosphere, equivalent to removing 300,000 cars from the road.

Furthermore, between 2026 and 2030, the project is expected to achieve over 5 percent of New Zealand’s required emissions reductions. These numbers showcase the NZ Steel project’s remarkable contribution to creating a greener and more sustainable future for the country.

Tonkin + Taylor’s involvement in the project is focused on meeting the necessary consents and proposed timeframe. The team has been diligently working with NZ Steel to understand and identify methods for managing the project’s environmental effects, including:

  • Discharges to air
  • Discharges to water
  • Earthworks
  • Contaminated land

By streamlining the consenting process, we aim to facilitate the timely construction of the proposed changes and maximise the overall benefits of the project. With specialists in air quality, water quality, freshwater and marine ecology, environmental geoscience, and planning, our team has brought a comprehensive and multidisciplinary approach to the project.


  • Air quality – preparation of air discharge assessments to support re-consenting of the Glenbrook Steel Mill site. Site-specific meteorological modelling and air dispersion modelling.
  • Water quality – including discharges to water
  • Design 
  • Planning
  • Geotechnical Engineering including earthworks
  • Contaminated Land
  • Freshwater and marine ecology
  • Environmental geoscience
  • Coastal Process Assessments
  • Ecological Impact Assessments


  • New Zealand Steel


  • 2022-present

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