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Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
For the first time, the Fraunhofer Institute for Wind Energy Systems IWES is operating two different profiling Lidar types simultaneously on a Fraunhofer IWES Wind Lidar Buoy. The campaign aims to validate the suitability of both systems for offshore buoy deployment while exploring new measurement concepts to increase data availability and enable complementary measurement strategies. As the first deployment of these next-gen Lidar units on a floating Lidar buoy, it also provides data to evaluate their performance under offshore conditions. It is being carried out as part of the Wind-Lidar-Boje NG research project, funded by the German Federal Ministry for Economic Affairs and Energy (BMWE).
Since April 2026, a Lumibird’s “BEAM6x WindPower” and Vaisala’s “WindCube 2.1 XP” have been operating on a Fraunhofer IWES Wind Lidar Buoy in the North Sea. Both systems have been collecting measurements simultaneously since deployment. Fraunhofer IWES is validating the measurement data against the IEC Metmast and calibrated Lidars on the FINO3 platform while assessing the performance of both Lidar systems under identical offshore conditions. The campaign also evaluates a versatile dual-Lidar integration into the buoy's energy system and the Lidars’ operational behavior in a dynamic environment.
Expanding the possibilities of offshore wind measurements
Beyond the validation of new Lidar technologies, the Fraunhofer IWES project team is investigating the potential of a dual-Lidar configuration for offshore wind measurements.
“The dual-Lidar concept provides several advantages for offshore wind measurements,” says Stephan Stone, Group Leader Wind Measurement System Technology at Fraunhofer IWES. “This gives us greater flexibility in addressing different measurement requirements and customer needs. Depending on the application, two Lidar systems can be used either to increase data availability through redundancy or to collect complementary datasets using different measurement configurations.”
Modular integration on the Fraunhofer IWES Wind Lidar Buoy
The two Lidar systems are housed in separate protective enclosures mounted on a shared support structure specifically developed for deployment on Fraunhofer IWES Wind Lidar Buoys. This modular design protects the instruments from wave-induced motion and corrosive marine conditions, before dedicated offshore adaptations by the manufacturers.
“Lumibird is delighted to contribute to this pioneering project, which aims to provide offshore wind farm developers with premium-quality wind data, combining high data availability with low measurement uncertainty, and including accurate turbulence intensity (TI) assessments. We are confident that Fraunhofer IWES's recognized expertise will fully leverage the advanced capabilities of the BEAM6x WindPower, including its unique six-beam configuration for enhanced TI measurements, configurable line-of-sight accumulation times down to 100 ms, and high-resolution range gating with up to 380 measurement gates”, says Alexandre Biasi, Business Development Manager at Lumibird.
"Fraunhofer IWES has long been a leader in floating lidar, and we are delighted that the WindCube® 2.1 XP is part of their newest design. There is a great, shared spirit of innovation at Fraunhofer IWES and at Vaisala. I expect a wave of new inventions based on the data from this buoy", adds Andrew Black, Senior Scientist, Vaisala.
Sharpening floating Lidar measurements
The campaign provides valuable insights into the operation of different Lidar technologies on the Fraunhofer IWES Wind Lidar Buoy under offshore conditions. Beyond evaluating the current systems and the dual-enclosure concept, this deployment enables Fraunhofer IWES to investigate further the application of its high frequency deterministic motion compensation tools which are delivering advanced turbulence intensity results.
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Fraunhofer IWES
The Fraunhofer Institute for Wind Energy Systems IWES conducts application-oriented research for a sustainable future. The focus topics of the Fraunhofer IWES are offshore, hydrogen, test infrastructure and digitalization. The research work in these future-oriented key technologies plays a central role in the innovation process and strengthens the business location for the benefit of our society by transferring the research results to industry. More than 400 employees at nine locations are developing innovative methods to accelerate the expansion of the wind energy and hydrogen economy, minimize risks, and increase cost efficiency.
Contact partner at the Fraunhofer Institute for Wind Energy Systems IWES
Stephan Stone
Group Leader Wind Measurement System Technology
Phone +49 471 14290-144
Email: stephan.stone@iwes.fraunhofer.de
https://www.iwes.fraunhofer.de/en/research-projects/current-projects/wind-lidar-... More about the Wind-Lidar-Boje NG research project
Fraunhofer IWES Wind Lidar Buoy with dual-Lidar system just after deployment at FINO3 test site.
Copyright: © Fraunhofer IWES/Eduardo Salvador Chavez Yanchapaxi
Fraunhofer IWES Wind Lidar Buoy with dual-Lidar just after deployment – side view with dual enclosur ...
Copyright: © Fraunhofer IWES/Eduardo Salvador Chavez Yanchapaxi
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Fraunhofer IWES Wind Lidar Buoy with dual-Lidar system just after deployment at FINO3 test site.
Copyright: © Fraunhofer IWES/Eduardo Salvador Chavez Yanchapaxi
Fraunhofer IWES Wind Lidar Buoy with dual-Lidar just after deployment – side view with dual enclosur ...
Copyright: © Fraunhofer IWES/Eduardo Salvador Chavez Yanchapaxi
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