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Windtech International July August 2024 issue






Natural Power have announced the release of the ZephIR 300, which draws upon the 6 years field experience and 450 deployments of the existing ZephIR system. ZephIR 300 represents a validated, traceable and affordable continuous wave (CW) lidar system calibrated to an industry approved standard developed with GL Garrad Hassan.

The core technology, which remains essentially unmodified from the established ZephIR 175 systems, has been tested via IEC equivalent power performance measurements, extensive onshore / offshore campaigns and tall mast verifications up to 193 meter. Following consultation of an expert wind industry group in 2009, a new product development and validation programme within Natural Power has driven ZephIR 300 to be of single pod construction capable of operating from -40°C through to +50°C, robust high-specification connections, small in size, low in power, and fully CE compliant including approved true Class 1 eye-safe laser classification (IEC 60825-1) and EMC compliance (EN61236 Industrial and EN55022 Class A standards).

Correlations during 2010 at the lidar test site saw excellent agreement between mast and ZephIR across all heights with less than a one per cent difference in gradients and R2 values extremely close to the optimum value of 1.0. Importantly, testing has demonstrated high (close to 100%) constant data recovery (availability) rates with increasing height, from 10 to 200 metres. Measurements at 300 metres have also been taken and will be available on the device.
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