Oil supermajor Shell and its partners Banque des Territoires and China Nuclear Power Corp. (CGN) have withdrawn from the Groix and Belle-Ile floating wind pilot in Brittany, France amid doubts about the economic viability of the project.

“The project faced several technical, commercial and financial challenges, all in a context of constantly increasing costs and very strong constraints, in terms of inflation and supply chain,” the companies said in a joint statement.

“The economic conditions linked to the project have been significantly modified, calling into question, for all the partners of the consortium, the economic viability of the project.”