The Hornsea Four Offshore Wind Farm Order 2023

Design parameters E+W+S

1.—(1) The total number of wind turbine generators comprised in the authorised scheme must not exceed 180.

(2) Subject to sub–paragraph (3), each wind turbine generator forming part of the authorised scheme must not—

(a) exceed a height of 370 metres when measured from LAT to the tip of the vertical blade;

(b) exceed a rotor diameter of 305 metres;

(c) be less than 42.43 metres from LAT to the lowest point of the rotating blade; and

(d) be less than 810 metres from the nearest wind turbine generator in all directions.

(3) The minimum distance in sub-paragraph 1(2)(d) between each wind turbine generator is to be measured from the centre point of the wind turbine generator.

(4) Wind turbine generator foundation structures forming part of the authorised scheme must be one of the following foundation options—

(a) monopile foundations;

(b) mono suction bucket foundations; or

(c) jacket foundations.

(5) No wind turbine generator—

(a) jacket foundation employing pin piles forming part of the authorised scheme may—

(i) have a pin pile diameter of greater than four meters; and

(ii) employ more than 16 pin piles per jacket foundation; and

(b) monopile foundation forming part of the authorised scheme may have a diameter greater than 15 metres.

(6) The total seabed footprint area for wind turbine generator foundations must not exceed—

(a) 302,180 square metres excluding scour protection; and

(b) 985,240 square metres including scour protection.

(7) The total volume of scour protection material for wind turbine generator foundations must not exceed 1,582,040 cubic metres.

(8) The wind turbine generators comprised in the authorised scheme must be constructed in accordance with the parameters set out in the pro–rata annex.

Commencement Information

I1 Sch. 11 Pt. 2 para. 1 in force at 3.8.2023, see art. 1