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Turbine foundations completed at Perdekraal East Wind Farm

12th July 2019

By: Simone Liedtke

Creamer Media Social Media Editor & Senior Writer

     

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The developers of the Perdekraal East Wind Farm, in the Western Cape, last month completed the project’s 48 wind turbine foundations – three weeks ahead of schedule and within budget.

The first of the foundations was poured in November.

Most of the workforce came from the local communities of Ceres, Nduli, Bella Vista and the Prince Alfred hamlet, in line with local employment and upliftment imperatives.

“Around 70% of the workforce responsible for building the foundations came from these beneficiary communities,” Perdekraal Wind Farm construction project manager Glenn Hobson said.

In a statement issued last week, the developers said the foundation design used “a 70% replacement of cement”, signalling a significant improvement in the concrete mix, resulting in a 32.5% reduced carbon footprint.

Additionally, all material excavated from the foundations was reused on the site, either as fill on roads or in preparation for the hard stands adjacent to the foundations.

Each turbine base has a diameter of 19 m and comprises over 45 t of reinforced steel and 369 m3 of 30 MPa concrete, while the plinth required 23 m3 of 60 MPa concrete. This is equivalent to a total of 65 full concrete trucks per foundation.

The 110 MW wind farm spans 3 055 ha.

Edited by Chanel de Bruyn
Creamer Media Online Managing Editor

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