8 June 2018
NDT inspection has the ability to look beneath the surface
For many years blades have just been inspected from the outside, showing only the ‘top of the iceberg’. Even though the blade surface looks intact, serious damages and structural abnormalities may be found on the inside and underneath the surface of the blade. NDT inspection is here a useful method to “see” what is hidden beneath the surface.
As larger blades increasingly show signs of structural issues after end of warranty many WTOs seek for faster and more accurate inspection method that contributes to reduce Operation & Maintenance (O&M) cost.
During the event inspection experts from around the world presented advanced technologies with new improved data and results. Many of the newest methods are drone based and the participants were among others presented to FORCE Technologies newest invention “Contact based blade inspection with ultrasound using drone technologies”.
3 days of networking and seminars
Vattenfall’s Manager of WTG System Engineering and Blade Specialist, Rikke Juul Balle, says:” Very inspiring day. We have been presented to many new inspections methods of interest for Vattenfall. And it’s very valuable to spend the day together with other blade owners in the WTO network”.
The group of Wind Turbine Owners spend 3 days in Denmark and the first day (June 4th) was hosted by Bladena. The topic was Owners Requirements. The second day (June 5th) was spend with a seminar on "Next Generation Inspection Methods" hosted by FORCE Technology. See photos from the seminar below.
The third and last day (June 6th), the seminar continued at the Technical University of Denmark (DTU). Here focus was on failure in composite materials on wind turbine blades. The wind turbine owners had the opportunity to witness physical test results of blade failures.
The participating WTOs
Wind Turbine Owners and insurance companies arranged by Bladena attending the WTO Next Generation Inspection Methods Seminar: Acciona Energy, Brookfield Renewable, EDF Energy, Eneco, Enel, ENGIE, E.ON, EWII, Gemini Wind Park, HOFOR, Innogy, Natural Power, RES, ScottishPower Renewables, Statoil, Stena Renewable, Vattenfall, WindMW Service GmbH and CODAN. For further information about the WTO seminar visit the Bladena website.
The WTO seminar is partly funded through the EWIC Project (End of Warranty Inspection Concepts). The EWIC project headed by Bladena will demonstrate how the value of end of warranty inspections can be enhanced – with the overall objective to reduce Levelised Cost of Energy (LCoE) and extend the operational lifetime of the blades. Partners in the project is Vattenfall, E.ON, HOFOR, Bladena, Total Wind, BLAEST, Kirt-Thomsen and FORCE Technology. The EWIC project is facilitated by Offshoreenergy.dk through the European Regional Development Fund and partly under the RATZ Project funded by the Energy Technology Development and Demonstration Program (EUDP).
Photos from the "Next Generation Inspection Methods" seminar