Gamesa said revenues in the first six months of 2016 were €2.19 billion, up 32.8% year on year.
Sales were up 47% to 2.18GW-equivalent, and pre-tax earnings (EBIT) were up almost 70% to €230 million.
As a result of the strong performance in H1, Gamesa increased its 2016 EBIT guidance from more than €400 million to more than €430 million.
Gamesa attributed the record growth to the Indian market, which contributed 30% of its turbine sales. Latin America was its next biggest selling region with 29%.
These are the two regions most attractive to Siemens, which finally agreed a merger deal with Gamesa in June.
Gamesa said it continues to "advance its strategy of long-term value creation through the signature, on 17 June, of an agreement to merge with the wind assets of Siemens to create a world leader in the wind power business, to be listed in Spain with registered offices in Zamudio, that will have a sustainable medium- and long-term value proposition for all its stakeholders."