North Brown Hill Wind Farm

Project name: North Brown Hill Wind Farm

Client: Suzlon Energy Australia

Value: $26M

Location: North Brown Hill, South Australia

Commencement: April 2009

Duration: 17 months

Overview: The project involved the design and construction of 43km of roads and foundations for Wind Turbine Generators (WTG) on the North Brown Hill Windfarm as well as substation civil works.  The site is located on private properties in rural South Australia and covers 38km2 requiring interface with various stakeholders and property owners.

Scope of works:

  • Cut to fill of 225,000m3 of earth, including associated drainage and revegetation of disturbed areas
  • Construction of lay down areas, typically 20,000m2 with 800m2 crane hard stands at each WTG location
  • Design and construction of reinforced concrete foundations for 63No WTGs that were post tensioned and rock anchored
  • Levelling of packers upon which the 125m WTGs were installed and subsequent precision grouting
  • Design and construction of Kiosk Transformer footings
  • Substation civil works, including: detailed excavation of trenches and footings; construction of reinforced concrete pad footings and cable trenches using fibre reinforced concrete; storm water installation, including oil separator and rock pitched batters; and installation of electrical conduits