Light detection and ranging (LiDAR) technology provider ZX Lidars has launched the first ground-based wind LiDAR to be certified for measurements from 21-200 metres.
The ZX 300e underwent independent testing by DNV, GeoNet and Pavana, which verified that it met the requirements of the IEC 61400-50-2 standard. The certification covers wind measurements for applications including resource assessment, site calibration and turbine power curve testing.
The certification range includes heights relevant to modern wind turbines. Testing using multispectral imaging, detection and active reflectance (MiDAR) technology, which combined a vertical-profiling LiDAR with a 91 m mast, recorded data availability between 94,2% and 99,8% from 20-300 m with correlation slopes within approximately 1%.
The ZX 300e operates using continuous wave LiDAR algorithms for wind speed and direction measurements, turbulence intensity and data availability. It has a power requirement of 44 W and functions in temperatures down to -25°C.
