# The Hornsea Three Offshore Wind Farm Order 2020, Paragraph 2: Detailed offshore design parameters

Extent: E+W

(1) The total number of wind turbine generators comprised in the authorised project must not exceed 231 and a total rotor swept area of 8.8 square kilometres.
(2) Subject to sub-paragraph (3), each wind turbine generator forming part of the authorised project must not—
(a) exceed a height of 325 metres when measured from LAT to the tip of the vertical blade;
(b) exceed a rotor diameter of 265 metres;
(c) be less than 41.8 metres from LAT to the lowest point of the rotating blade; and
(d) be less than one kilometre from the nearest wind turbine generator in all directions.
(3) The reference in sub-paragraph (2)(d) to the location of a wind turbine generator is a reference to the centre point of that wind turbine generator.
(4) Wind turbine generator foundation structures forming part of the authorised scheme must be one of the following foundation options: monopile foundation, mono suction bucket foundation, jacket foundation or gravity base foundation.
(5) No wind turbine generator—
(a) jacket foundations employing pin piles forming part of the authorised project shall have a pin pile diameter of greater than four metres; and
(b) monopile foundation forming part of the authorised project shall have a diameter greater than 15 metres.
(6) The total seabed footprint area for wind turbine generator foundations must not exceed—
(a) 435,660 square metres excluding scour protection; and
(b) 1,623,182 square metres including scour protection.

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Source: https://www.legislation.gov.uk/uksi/2020/1656/schedule/1/part/3/paragraph/2 (the official version)
Page: https://openlegislation.uk/hornsea-three-offshore-wind-farm-order-2020/schedule-1/part-3/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.