Wind measurements and verification
Wind Minds can help you determine the best wind strategy for your site. We will assess the most accurate way to measure expected wind speeds at the start of a project. We have several tools at our disposal, including but not limited to the reassessment of already existing wind speed measurements, yield data from existing wind turbines, LiDAR (laser based wind measurement), meteorological towers or a combination of these tools. By comparing already existing measurements with our own, uncertainties in the energy yield calculations (P50/P90) can be significantly reduced.
Wind Minds can calculate an expected energy output of your project, based on production data from a nearby wind farm (given that this data is available). Moreover, we can prepare a so-called post-construction report (P90), which gives you a better estimate of your long term yields once your project is operational.
LiDAR is a technology that uses laser to measure the vertical wind profile, which yields the best possible data for wind climate and energy yield calculations. It produces reliable measurements, which are comparable to MEASNET-calibrated meteorological towers. LiDAR’s greatest advantage is the mobility of the measuring equipment, which makes it possible to measure wind speeds at different locations in a project zone. This offers many advantages compared to measurements that are done by a single measuring mast or tower. Another advantage of LiDAR-measurements is the possibility to measure wind speeds at up to 300 meters above sea level. This enables us to measure the complete rotor area of a wind turbine.
For some sites, it can be helpful to use meteorological towers as a replacement for, or in addition to, LiDAR. This is true for sites where we expect a lot of turbulence, or for projects where we will need to do long-term wind measurements (e.g. yield verification of existing or planned wind farms). Wind Minds uses towers along with LiDAR to create yield data that is as accurate and reliable as possible. Using horizontal interpolation between a tower position and several LiDAR positions, we can verify theoretical energy yield models. Thanks to this smart combination, we can significantly reduce uncertainties in yield estimates.
Wind Minds can help facilitate the entire process concerning meteorological towers, from selecting the ideal location and applying for a permit to the contract, supervising the construction and analyzing the final data. The end result is a meteorological tower that is up to 150 meters high! Wind Minds has its own LiDARs available, but can also operate your LiDAR for you if so desired.
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