Lidar addition enables floating laboratory
AXYS Technologies is looking to set the standard in floating lidar devices, having deployed a dual ZephIR 300 arrangement on the company's WindSentinel buoy, a world first. The WindSentinel ‘floating laboratory’ delivers a customised full suite of meteorological and metocean data, in addition to the wind speed & direction data used for resource assessment, to better inform the development of offshore wind farms.
The AXYS WindSentinel combines the NOMAD buoy designed to perform in harsh marine weather and the ZephIR 300 Continuous Wave (CW) wind lidar with more than 200 individual IEC compliant performance validations. The AXYS design philosophy for reducing risk associated with met data acquisition provides dual or even triple redundancy on all major components. Further, the inclusion of two wind lidars allows for staggered servicing of the wind measurement sensors to permit continuous data capture during the campaign.
Terry Tarle, President & CEO at AXYS commented on the world-first launch, on show at Ocean Business 2015, Southampton, UK: “Every element of our WindSentinel floating lidar buoy aims to include the best-in-class of each and every sensor, cable and connector. ZephIR 300 is a proven market leader in the lidar sector and providing clients with an option for dual deployment really does offer an unparalleled level of risk reduction. We are also pleased to now offer ‘Data as a Service’ to the industry with no need to acquire technology, just the high quality data it provides. We can mobilise to any site, anywhere.”
ZephIR 300 wind lidar provides high resolution measurements at an unmatched data rate of 50Hz. Every second, 50 points are measured in the free space targeted by the sensor, and chosen by the user, anywhere from 10 to 200m. This type of CW wind lidar gives very accurate measurements of the wind speed, direction and other characteristics, including turbulence intensity. ZephIR 300 is also the single most validated wind lidar at a consistent IEC compliant met mast site.
Ian Locker, MD at ZephIR Lidar welcomed the news: “We have been working with AXYS since 2007 where we installed ZephIR offshore on a purpose built meteorological station. Almost a decade later and AXYS are now delivering fleets of their WindSentinel floating lidar buoys for offshore wind resource assessment at a fraction of the cost, and time, of a traditional fixed met mast. This new standard for dual ZephIR 300s provides real benefit in continuous data capture even during service periods which can be made out of sync.”