Siemens Energy has to move as fast as possible to integrate Siemens Gamesa as there are “not yet clear signs of a recovery” at the troubled wind turbine manufacturer which needs “multiple years” to fix the issues it faces, said CEO Christian Bruch.

Siemens Energy this weekend made its long-expected move to buy the one third of Siemens Gamesa it does not own, offering minority shareholders €18.05 per share in cash in a bid worth about €4.05bn ($4.3bn).