Accredited FLS verification campaigns
In wind resource assessments using a LiDAR, guidelines by MEASNET, IEA, Carbon Trust and IEC recommend regular LiDAR verification to be performed by a recognized, accredited institute. TNO Wind Energy is ISO17025 accredited for power performance measurements, mechanical loads measurements, meteorological measurements and remote sensing verification measurements according to IEC 61400-12-1, IEC 61400-50-2 and IEC TS 61400-50-4. TNO Wind Energy is registered as test lab L324 at the Dutch Accreditation Council: L324 - Raad voor Accreditatie
Furthermore, TNO Wind Energy is an IECRE approved test lab for power performance and mechanical loads. TNO (formerly as ECN) is one of the founding fathers of MEASNET and is still an active member of the MEASNET Expert Group ‘Remote Sensing Devices’ and ‘Power Performance’. It was also a member of the IEC TS 61400-50-4 working group. With its work, it has laid the foundation for the present-day standards.
Lichteiland Goeree (LEG)
On a distance of about 30 km south-west from Hoek van Holland a platform called Lichteiland Goeree is situated. The coordinates of the platform are: 51°56′ NB, 3°40′ OL. The platform serves as a beacon for ships on the North sea and is also used for meteorological measurements by KNMI and Rijkswaterstaat (RWS).
Around the LEG platform, in close collaboration with Rijkswaterstaat and the Dutch Coast Guard, TNO operates 15 allocated deployment lots for the verification of Floating LiDAR Systems. Since the end of 2020, TNO Wind Energy is performing verification campaigns of Floating LiDAR Systems. Several dozens of FLS measurement campaigns have already been completed there.

About TNO
TNO is an independent research organization. We connect people and knowledge to create innovations that boost the sustainable competitive strength of industry and well-being of society. For this purpose, TNO is established by law as legal public entity. The TNO-law gives us a number of special tasks and frameworks and linking it to specific conditions under which we have to perform our work. So that we can continue to create independent and reliable solutions to the challenges that society presents us.
References
The following guidelines are leading for the Floating LiDAR System verification activities of TNO:
- MEASNET, ‘Evaluation of Site-specific Wind Conditions’, version 3, September 2022
- IEA Wind Expert group study on recommended practices. 18 Floating LiDAR systems, first edition, September 2017
- Carbon Trust, ‘The Carbon Trust Offshore Wind Accelerator roadmap for the commercial acceptance of floating LiDAR technology’, version 3.0, June 2025
- International Electrotechnical Commission, 'Wind energy generation systems – Part 50-4: Use of floating LiDAR systems for wind measurements', IEC TS 61400-50-4:2025, May 2025
