Our work

Unique wind turbine inflow measurements

Wind turbines are being designed based on models predicting yield and loading. These models are as good as the data with which they are validated. Therefore, a higher accuracy of reference wind measurements will result in more accurate models, and thus better wind turbines. In the ScanFlow project, TNO and DTU very accurately measure the wind turbine inflow wind field of a TNO research wind turbine with various DTU scanning LiDAR.

The European Energy Research Alliance (EERA) Joint Programme Wind partners expressed the need for sharing facilities and equipment on a European level for optimal use of research resources and achieving access to cutting edge technologies. This all with the ambition to bring and maintain the EU wind industry at the top international level. In order to do so, the EERA JP Wind partners organized Joint Experiments in the framework of the FP7 Integrated Research Project Wind (IRPWind). One of these Joint Experiments is the ScanFlow project.

Overview of the ScanFlow measurement campaign

The ScanFlow measurement campaign was executed at the TNO wind turbine test site. Among others, the test site comprises a row of five of full scale TNO 2.5MW research turbines, accompanied with a 108m-high meteorological mast. The terrain is flat, agricultural land, assuring nice, homogeneous wind flows.

The inflow wind field of the turbine is primarily measured with a DTU SpinnerLidar and three DTU short range scanners. These systems are based on LiDAR (Light Detection and Ranging) technology that measure the wind remotely using laser light. The SpinnerLidar is mounted on the nacelle of the turbine, at 80m height. It scans the wind field about 60m in front of the turbine, taking a two-dimensional snapshot of the wind. The three short-range scanning LiDARs are placed on the ground that are programmed and synchronised such that they all measure at the same point in the wind field. By scanning or moving the laser beams, the researchers are able to capture the full three-dimensional aspects of the wind field. Furthermore, a ground-based profiling LiDAR captures the undisturbed wind conditions while a meteorological mast registers atmospheric conditions, providing essential background information for the model validation. In the meanwhile the research turbine is operated under normal conditions, taking essential data, such as produced power, rotational speed, etc. on the fly.

Detailed wind field measurements in front of a turbine are not commonly available. TNO and its partners make this unique, highly detailed and comprehensive dataset available to the research community via the ScanFlow website (www.irpwind-scanflow.eu). The dataset will be used by academia and industry to improve and validate their models so that improvements in wind turbine design will continue.

If you are interested in the measured data set please visit the ScanFlow website

ScanFlow website

Innovative methods for wind measurements

TNO supports commercia in the wind energy industry with research and innovation, in order to achieve the greatest possible return from offshore wind energy. Read more
Our work

Light Detection and Ranging improve wind energy efficiency

Technology and services are developed and demonstrated to use LiDAR (Light Detection And Ranging) systems in offshore wind power plants to significantly reduce the cost of energy. In this four-year TKI... Read more
Our work

Measuring offshore wind farm performance with Lidar laser technology

Offshore wind farms are becoming increasingly larger and their turbines are reaching higher into the sky. New knowledge is needed to understand the way wind behaves at these altitudes and the forces it... Read more

New EU project funded to develop cost-effective sustainable aviation fuel

25 February 2021
Aviation is one of the most challenging sectors when it comes to reducing CO2 emissions. One of the reasons is that common alternatives such as electrification or hydrogen propulsion, are not expected... Read more

Rijswijk research centre for geothermal energy can continue to make important contribution to energy transition

12 February 2021
With the recent signing of contracts to extend their commitment until 2024, the initiators of the 'Rijswijk Centre for Sustainable Geo-Energy' (RCSG) have once again underlined the importance of the centre. ... Read more

European project HEREWEAR to develop biobased circular textiles

26 January 2021
Within the newly approved Horizon 2020 project HEREWEAR, TNO will, as part of a European consortium, aim to develop biobased circular textiles. Read more


Dr Jan Willem Wagenaar


Stay up to date with our latest news, activities and vacancies

TNO.nl collects and processes data in accordance with the applicable privacy regulations for an optimal user experience and marketing practices.
This data can easily be removed from your temporary profile page at any time.
You can also view our privacy statement or cookie statement.