Corrosion protection work on offshore plant

Düsseldorf in May 2021

The North Sea plays an extremely important role for European offshore wind energy. According to the status of offshore wind energy expansion in Germany, published by Deutsche WindGuard GmbH, the fed-in capacity of the plants located in the North Sea was 6,440 megawatts at the end of 2019 – in comparison, the capacity from the Baltic Sea was 1,076 megawatts. Further projects under construction or in planning should increase the output in the next few years.

“Due to the special requirements resulting from salt water and sea air, corrosion protection is a focus for these plants and maintenance measures are necessary on a regular basis. In a current project, for example, we are currently carrying out corrosion protection work on a converter platform off the German North Sea coast.”,

reports Erdal Kara Osman, Managing Director of RODOPI Marine GmbH.

Work linked to good weather conditions

Converter platforms take over the transmission of the electricity generated by the wind farms to the shore and thus form the heart of the offshore systems. Over the course of the next seven months, repairs of minor damage caused by grinding processes will be taken over in this project. Then a new coating is applied so that the construction is strengthened again for the next few years.

“The biggest challenge is the time, because the work is tied to good weather conditions,” explains Kara Osman and adds: “Every day our employees have to wait for express permission to enter the platform. Only then do the respective forces receive instruction and the subsequent preparation of the material. The assigned employees only start work if this procedure is adhered to – but only two per construction site. “

A total of 28 Rodopi specialists are working on the project. The workers deployed are rotated every 15 days, with which the employees also create a report at the same time. At the end of the project, an end report is handed over to the client, which contains all the important information about the work carried out.

Coating material for offshore

As a rule, employees apply three layers of coating. However, this also depends on the surface and its particular damage.

“For the work on this project, we are using a 2-component coating material that is particularly suitable for offshore use – Sikacor”,

explains Kara Osman. It is an abrasion-resistant filler for touching up or repairing damaged coating surfaces on steel. In addition, the material is solvent-free, resistant to early water and hardens under water. As a result of these repair measures on the converter platform, the corrosion protection will be renewed for the next few years.

RODOPI Marine GmbH
Wahlerstr. 4th
40472 Düsseldorf
Tel .: +49 (0) 211-90997272
Fax: +49 (0) 211-90997273

Image source: RODOPI Marine GmbH