Horns Rev, a shallow area that begins 15km off the coast of Denmark’s Jutland, is the site of the first offshore wind farm built in the North Sea. The 160MW Horns Rev 1, which uses 80 Vestas 2MW turbines, began feeding the Danish electricity grid in 2002.

Construction on Horns Rev 2 began in early 2008, and the farm now boasts 91 operational Siemens 2.3MW