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Rentel is the first wind farm that was developed by Otary. The Rentel wind farm consists of 42 turbines capable of producing enough sustainable energy to power 300,000 Belgian homes on an annual basis.  Located between the Thornton and Lodewijck banks, the Rentel wind farm has been fully operational since late 2018. 

The concession for the Rentel wind farm was granted in 2009. Otary acquired the permits for the project in 2013, and the financing of the wind farm was completed at the end of 2016. Construction started in 2017 and resulted in 42 fully operational wind turbines in November 2018. Otary coordinated the development, financing and construction of the Rentel offshore wind farm from start to finish and now takes care of its daily management.