This article lists the largest offshore wind farms that are currently operational rated by nameplate capacity. It also lists the largest offshore wind farms currently under construction, the largest proposed offshore wind farms, and offshore wind farms with notability other than size.
As of 2022, Hornsea 2 in the United Kingdom is the largest offshore wind farm in the world at 1,386 MW.
A wind farm, also called a wind park or wind power plant, is a group of wind turbines in the same location used to produce electricity. Wind farms vary in size from a small number of turbines to several hundred wind turbines covering an extensive area. Wind farms can be either onshore or offshore.
Many of the largest operational onshore wind farms are located in China, India, and the United States. For example, the largest wind farm in the world, Gansu Wind Farm in China had a capacity of over 6,000 MW by 2012, with a goal of 20,000 MW by 2020. As of December 2020, the 1218 MW Hornsea Wind Farm in the UK is the largest offshore wind farm in the world. Individual wind turbine designs continue to increase in power, resulting in fewer turbines being needed for the same total output.
The London Array is a 175-turbine 630 MW Round 2 offshore wind farm located 20 kilometres (12 mi) off the Kent coast in the outer Thames Estuary in the United Kingdom. It was the largest offshore wind farm in the world until Walney Extension reached full production in September 2018.
Construction of phase 1 of the wind farm began in March 2011 and was completed by mid 2013, being formally inaugurated by the Prime Minister, David Cameron on 4 July 2013.