C-Power offshore wind farm

IMDC supported the development of C-Power, which is the first offshore wind farm in the concession area on the Thornton Bank in the North Sea. The farm has 54 wind turbines with a total installed capacity of 325 MW. It is located 26 km from the shore in water depths ranging from 12 m to 27,5 m. 

IMDC acted as Owner’s Engineer from the very beginning until the execution phase of the project. IMDC was involved in the daily follow-up of the marine works, which were part of the design and build contract and was performed by an integrated team of engineers. Follow up of the marine works was related to the installation of the gravity based foundations, the scour protection of the infield and sea cables and the directional drilling at the beach. IMDC also was responsible for the weather downtime analysis and metocean measurements. 

We provided consultancy services in support of the operation and maintenance phase (O&M) of the offshore wind farm: 

  1. offshore representatives for the follow-up and witnessing of offshore activities and works
  2. engineering services for the processing and analysis of monitoring data
  3. engineering services in relation to scour protection
  4. engineering services in view of the reporting of regular monitoring results as required in the Client’s permits.

The farm allows for C02 emissions reductions equivalent to 415.000 tons per year and generates about 1.05 GW per year, enough to provide 300.000 families with renewable energy. 


  • Client: C-Power (Tractebel)
  • Start date: 2008
  • Completion date: 2014