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Te Rere Hau

Holmes Consulting Group was engaged to look at foundation options for the 90 turbine windfarm. One of our key focuses during the design was to minimise environmental impacts caused by construction of the foundations.

An engineering solution was developed that reduced the amount of concrete required from the original design by up to half. This provided a significant saving in terms of carbon used to provide the foundations.

The foundation design also reduced the amount of excavation required which in turn reduced the visual and ecological impact on the  site.

Further benefits of this sustainable solution included a significant cost and time savings.

Windfarm sites are, by their nature, very difficult places to work. Our solution allowed the foundation reinforcing to be tied offsite. Connection of the tower to the foundation was designed to be bolt free. These solutions significantly reduced the amount of work required to be carried out on the top of the Tararuas.

  • Te Rere Hau Windfarm: Windfarms generate power with minimal disruption to the natural environment.
  • Te Rere Hau Windfarm: Our design reduced the materials used in the foundation by almost half.
  • Te Rere Hau Windfarm: Our team worked with Windflow Technologies to design the turbine towers and foundations. An innovative solution for the foundations significantly reduced concrete volumes, costs, construction time, excavation and carbon use.
  • Te Rere Hau Windfarm: The design solution also presented the opportunity for more preparation offsite, protecting the works from the harsh elements.
  • Te Rere Hau Windfarm: The design allowed for both cost and time savings.