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How turbines make wind

How turbines make wind

The construction of Jeffreys Bay Wind Farm has forged ahead, with 60 wind turbines producing electricity, but how?

These towering machines’ long rotor blades are majestically turning in the wind, and can be viewed by commuters from the N2. This spectacular sight is causing quite a stir amongst locals and visitors to the region, who are curious to understand how exactly power is created by these soaring machines.

“We are so pleased that the public are so engaged and interested in our Project about the process of creating power from the wind,” said Mark Pickering, General Manager of Jeffreys Bay Wind Farm. “Our Facebook page and call centre line are abuzz with questions,”

he added.

In simple terms, here is an outline of how wind turbines can transform free wind into electricity that powers our homes:

• If the wind blows sufficiently, then wind energy is converted to mechanical energy through the turning turbine blades.

• The turbine blades transfer this mechanical energy via the shaft and gearbox (the large box on top) to the electrical generator that turns the mechanical energy into electrical energy.

• This electrical energy is then made grid compatible.

• The grid compatible energy is fed from the Wind Turbines via a network of underground cables across the wind farm to the project substation. The substation forms the connection point between our “local” wind farm grid and Eskom’s national grid.

• The Eskom grid then “supplies” this energy to the consumers.

Wind Farm Jeffreys Bay

Further information is available from the Jeffreys Bay Wind Farm

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Jeffreys Bay Wind Farm– Boiler Plate
Jeffreys Bay Power (RF) (Pty) Ltd is majority owned by Globeleq, the emerging markets power company, and its consortium partners, Mainstream Renewable Power South Africa, Old Mutual, Thebe Investment Corporation, Jeffreys Bay Community Trust, Enzani Technologies and Usizo Engineering. Siemens will provide, install and commission the wind turbines and will maintain them for the first ten years of operation. A consortium of Murray & Roberts and Conco are responsible for the engineering, procurement and construction of the balance of plant, including turbine foundations, civil works, the electrical collection network and the main substation. Construction is being managed by Mainstream Construction. The project company is managed by Globeleq.
Issued by: Tina Meier

Issued for: Jeffreys Bay Wind Farm
Date: February 2014

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