A "technical problem" affecting the export cable from the SEM-REV test site, where the Floatgen floating platform was recently installed to much fanfare, was identified about two years ago, site owner Ecole Centrale de Nantes (ECN) has admitted.
Although the fault was first discovered in 2016, it took a long time to identify exactly where the problem was, a source close to the test site explained.
It eventually turned out to be a fault in the junction box between the 20km-long export cable, installed in 2012, and a 400m-long extension added in 2015 when the hub – to which up to three demonstrators can be connected – was also installed, the source added.
When the Floatgen demonstrator was installed at the site in May, Ideol announced that "the connection to the export cable and to the power grid will be scheduled in the very near future after a last series of tests."
According to ECN, however, the plan was always for the final connection to take place in the summer.
Once connected, Floatgen will undergo a series of tests at the SEM-REV site for a period of at least two years.