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Fugro's Floating LiDAR on track for commercial acceptance

By: Tom Russell 12/01/2016 ECN\ image via Fugro Oceanor

General Windfarms

ECN has announced that the Fugro Oceanor Seawatch floating LiDAR is in the pre-commercial stage according to the Offshore Wind Accelerator (OWA) roadmap for the commercial acceptance of floating LiDAR technology.

In collaboration with RWE, Eneco and Fugro Oceanor ECN has performed a Fugro Oceanor Seawatch floating LiDAR validation trial near the offshore meteorological mast IJmuiden, located in the North sea about 75km from the Dutch shore. Particularly important is the presence of a static LiDAR inside the mast of the same make to be used as an alternative reference and providing the opportunity to distinguish between different technologies.

Furthermore, ECN stated that it was in this particular case demonstrated that ¾ of the deviation of the floating LiDAR with the mast is due to the used technology (LiDAR) and ¼ due to marine conditions. It also appeared that atmospheric turbulence is one of the main drivers for deviations with the mast.

In addition, ECN has demonstrated with this study that a static LiDAR can well be used as reference for a floating LiDAR instead of a mast. The main difference is a higher uncertainty, as the static LiDAR needs first be validated against a mast. This uncertainty of the floating LiDAR wind speed ranges from 3.6% to 6.8%.

Today, the most accurate wind data are generated using offshore meteorological masts, which are very expensive. ECN stated that floating LiDAR technology could potentially provide a cost effective alternative.

Floating LiDAR technology builds upon ground based LiDARs which are already accepted by industry for usage in flat terrain. A ground based (static) LiDAR is a laser based device to measure the wind remotely. In case of a floating LiDAR, the device is placed on a buoy or other kind of floater.

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Fugro's Floating LiDAR on track for commercial acceptance

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