PUBLIC DOCUMENTS


Scarlet Ibis Wind Energy Facility, Nelson Mandela Bay

The proposed Scarlet Ibis WEF will consist of up to nine (9) wind turbines with an output capacity of between 2MW and 4.5MW per turbine. The total output of the proposed Scarlet Ibis WEF will be less than 20MW. This will be achieved by having up to 9 turbines with an output capacity of 2MW or by reducing the number of turbines with a higher output capacity (2.5MW-4.5MW).

Due to ongoing technological advancements in the turbine development industry, the range of output for the proposed WEF has been set between 2.0MW and 4.5MW. As it stands, the preferred turbine model for this development is a 2.0MW turbine. Based on the current economics of the proposed project a minimum of eight (8) 2.0MW machines would be required to make the project economically viable. However, since the wind turbine market is rapidly evolving, should 4.5MW machines become more competitive for the project, the developer would like to retain flexibility on the maximum output of each turbine authorised.

  • The proposed 20MW Scarlet Ibis WEF will consist of the following infrastructural components:
  • Up to nine (9) wind turbines with a rotor diameter of up to 90m, a hub height of up to 100m and blade length of up to 45m, with a final total height of no more than 140m;
  • Turbine foundations of up to 400m² per turbine;
  • Crane hardstand areas of 3 500m² per turbine;
  • A switchgear and/or transformer of 25m² per turbine;
  • Internal access roads which will be 14m during the construction phase and will be rehabilitated to be 8m during the operational phase;
  • Medium voltage underground and/or overhead cabling between turbines and the switching station (to be laid underground where technically feasible);
  • A “Switching station and control area” of up to 7 500m² which would consist of the electrical switching equipment, battery storage capacity, electrical compensation equipment, control room, communications, and storage;
  • 22 kV powerline to connect the switching station to the Nelson Mandela Bay municipal grid:
    • Option 1: Coega Main substation, including two powerline alternatives as the potential connection point, or
    • Option 2: Motherwell Main substation, including one powerline alternative as the potential connection point.
  • Temporary infrastructure including a site camp and a laydown area of approximately 30m² per turbine (all to be rehabilitated post construction).

Published: 6 December 2017
 

Contact Person: Caroline Evans
Email: c.evans@cesnet.co.za
Tel: 046 622 2364

Published: 6 December 2017

Contact Person: Caroline Evans
Email: c.evans@cesnet.co.za
Tel: 046 622 2364

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