WIND MONITORING
FEATURE SPONSOR
MAKING MET MAST MONITORING MORE MANAGEABLE
Meteorological masts have been fundamental to the development and deployment of wind energy over the last 30 years
development and advisory business, Dulas, sought to provide a solution – a met mast verification service, with industry-leading wind lidar ZephIR 300. The mast verification service ensures that
meteorological masts are correctly calibrated and that their data is verified throughout the lifetime of the wind farm development.
DETECTING INACCURANCIES
Their measurement and monitoring systems enable resource assessment, the continued monitoring of wind yields and ongoing data provision on performance. However, once operational meteorological masts can become a neglected asset, as production priorities and operations and maintenance activity on turbines take precedence.
RECOGNITION
Recognising that this unintended consequence of market development was depriving owners and investors of data that could provide significantly improve their asset performance and by extension, their financial return, renewable
Working directly for asset owners, the new service provided will see the deployment on site of a remote sensing lidar – ZephIR 300, a finance-grade lidar system – which is able to detect many of the causes of inaccuracy in the met mast and also provide an onsite validation of any wind shear model being used for wind speeds above the mast height. The lidar is a fully calibrated system, verified against ‘gold-standard’ lidars in addition to a traditional, well-instrumented and calibrated met mast.
MONITORING SOLUTION
The lidar is simply moved to site to test the data of the operating project masts, enabling project owners to save the significant cost of personnel lowering the
FLOATING LIDAR SYSTEMS
Collecting wind data offshore enables developers to understand how strong the winds are at the heights of wind turbines, provides a clear picture of how much power can be generated at specific sites and helps to validate wind predictions from computer models
Meteorological and ocean measurements also help scientists understand air-sea interactions. Floating LiDAR systems facilitate cost effective, accurate monitoring of many key parameters required by offshore wind farm developers to determine if their proposed project will pass financial investment decision and gain the financial support needed from their project funders.
AVOIDING CONSTRUCTION OF A METEOROLOGICAL MAST
The AXYS Floating LiDAR system eliminates the need to construct a
meteorological mast and provides all the required data from a moveable and low environmental-impact buoy. The Floating LiDAR system is a wind resource assessment buoy capable of accurately gathering data on wind speed and wind direction offshore at turbine hub-height and across the blade span. As the system name indicates, the primary sensor on the system is a LiDAR – a ZephIR 300M, by ZephIR Lidar – that works on the principle of bouncing a Continuous Wave laser off air particles and reading the resulting Doppler shift in order to assess wind speed and direction information.
The ZephIR 300 wind lidar profiles the wind across the height of a met mast and higher to confirm and verify met mast performance.
mast to test and validate, or sending a team to the top of the tower to carry out the testing in situ.
For wind farm owners and wind project portfolio managers, Dulas believe that the monitoring solution is flexible enough to be deployed when most convenient, during periods of wider operation and maintenance for example and as a stand- alone solution.
WHITEPAPER
To support the service, a full whitepaper has been produced detailing the common issues that can affect traditional meterological mast anemometry.
Alistair Marsden Dulas Ltd
SCAN/CLICK SCAN/CLICK SCAN/CLICK
WEBSITE
BROCHURE
REPORT
AXYS 6-metre Floating
LiDAR system deployed against a met-mast for validation off the UK coast
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www.windenergynetwork.co.uk
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