A spokesperson for the Danish manufacturer said that the company will be exhibiting at the show in September, having said last October that attendance was still up in the air.
Enercon, the other major manufacturer that had opposed the move away from its original base, has also confirmed that it will attend the event.
The failure of either of the manufacturers to attend the biennial event would have been a serious blow to the fair in its first year at its new location.
At the European Wind Energy Association (EWEA) 2014 conference in March, it was announced that the body's annual conference would move to Hamburg on a permanent basis, raising questions about how the two would work together in the same city.
Husum, a small town in northern Germany, has held an international trade fair focusing on wind technology since 1989. However, with the growth of the industry, many industry observers have felt the industry has outgrown the location.
At the last exhibition in 2012, the majority of the show was held in marquees, while many participants claimed the lack of suitable accommodation nearby has also caused problems.
As a result, there was a growing demand from some sections of the wind industry to move the exhibition to Hamburg and to hold a national trade fair at Husum every two years.
But since Vestas has a base in Husum and has links to the area, it was keen, along with Enercon, to see the international conference remain at its original home.