Offshore wind is a new market; it has been just two decades since the first commercial installation. The sector was born mainly due to lack of space for the development of large onshore wind projects in the densely populated areas of Western Europe. The market first evolved in Denmark in 1991 with the construction of the Vindeby offshore wind farm. But real market growth came some 10 years later with construction of Middelgrunden, followed by Horns Rev, which became the largest true offshore project, located some 14-20 km offshore with a total installed capacity of 160 MW.