Hywind Scotland

Hywind Scotland is the world's first commercial wind farm using floating wind turbines, situated off Peterhead, Scotland. 
The farm has five 6 MW "Hywind" floating turbines with a total capacity of 30 MW. It is operated by Hywind (Scotland) Limited, a joint venture of Equinor (75%) and Masdar (25%).
Equinor (then: Statoil) launched the world's first operational deep-water floating large-capacity wind turbine, Hywind, in 2009. The tall tower with a 2.3 MW turbine was towed offshore into the Amoy Fjord in deep water, off of Stavanger, Norway on 9 June 2009 for a two-year test run.
In 2015, the company received permission to install the wind farm in Scotland. Manufacturing for the project, with a budgeted cost of NOK2 billion (£152m), started in 2016 in Spain, Norway and Scotland. The turbines were assembled at Stord in Norway in summer 2017 using the Saipem 7000 floating crane, and the finished turbines were moved to near Peterhead. Three suction anchors hold each turbine. Hywind Scotland was commissioned in October 2017, with a final capital cost of £264m, or £8.8m/MW, approximately three times the cost of fixed offshore windfarms and ten times the cost of natural gas.
In its first two years of operation the facility has averaged a capacity factor in excess of 50%.