A ZX TM wind lidar (light detection and ranging) has been deployed at Klipheuwel wind farm in the Western Cape to monitor wind conditions in real time and support turbine performance optimisation.
The system, installed by Globeleq South Africa several months ago, is a ground-based, forward-looking lidar that uses laser pulses to measure wind speed, direction and turbulence ahead of turbine rotors. It enables detailed analysis of approaching wind flow, supporting power curve verification, yaw alignment and the reduction of component stress.
Located approximately 5km west of Caledon in the Overberg region of the Western Cape, the Klipheuwel wind farm spans 350 hectares. It comprises nine Sinovel SL3000/113 wind turbines, each with a rated capacity of 3 MW, culminating in a total installed capacity of 27 MW. These turbines feature a rotor diameter of 113 metres and a hub height of 90 metres. The wind farm generates approximately 86 000 MWh of electricity annually.
“The ZX TM helps analyse wind shear, turbulence intensity and directional changes, providing a deeper understanding of wind behaviour at the site. This information is crucial for optimising turbine performance and minimising mechanical stress,” says Nico Lombard, Asset Manager at Globeleq South Africa.
The ZX TM unit has been operational for several months, providing diagnostics. “We have already identified some areas for improvement,” Lombard says.
