Yet the group is still undergoing changes as Siemens has signaled its ambition to bring about consolidation in the highly competitive renewables sector, in particular in the area of wind energy. Rumors have been swirling that the group is looking to buy Spain's Gamesa to form the world's biggest wind turbine manufacturer, a plan that has never been officially confirmed by Siemens. But the operation appears to have hit a key stumbling block over a joint venture between Gamesa and France's Areva, a direct competitor of Siemens. Meanwhile, the group is expecting "moderate revenue growth," stripping out the impact of exchange rate fluctuation, for the full year ending in September.