Underwater inspections on structures of offshore windturbines with ROV, both on the outside and inside

We are specialized in underwater inspections on monopiles, jackets, gravity based foundations and last but not least on floating windturbine foundations. To overcome the very high currents and turbulences around windturbine foundations, we have developed our own techniques, which are unique in the world. We perform the inspections with ROV, underwater robots in combination with the ALTUM telescopic pole.

This makes us unique in the underwater inspections with ROV in the world.

Due to our strong expertise in the sector, we have been able to perform the initial underwater inspections with ROV on floating windturbine foundations of Engie (Atlantic windfloat) and the Cobra group (Kincardine) together with the Classification Bureau: American Bureau of Shipping.

In the North Sea, we carry out inspections on windmill foundations with underwater drones for C-Power, Otary, Parkwind, Northwind, Engie, Cobra group, Jan de Nul and Norther.

In 2021 an amount of 50 windturbine foundations have been inspected.

Underwater inspections on structures of offshore windmills with ROV, both on the outside and inside
Underwater inspections on structures of offshore windmills with ROV, both on the outside and inside
Underwater inspections on structures of offshore windmills with ROV, both on the outside and inside
Underwater inspections on structures of offshore windmills with ROV, both on the outside and inside

Which task do we perform?

1. visual inspections of the foundations and cables, J-tubes, I-tubes

2. inspections of the 'scour protection'

3. mapping the marine growth on the foundations

4. dimension checks of anodes and other objects

5. checking the proper functioning of anode systems

6. boat landing inspections

7. inspection if freespan occurs on the interconnector and export cables

8. local Cleaning

9. retrieving Lost Objects

10. imaging using sonars in dirty water with up to 3Mhz

11. thickness measurements of steel structures