The Galloper Wind Farm Order 2013

Further offshore design requirements

8.—(1) Each monopile foundation forming part of the authorised development shall not have a diameter greater than 7 metres.

(2) Each monopile foundation forming part of the authorised development shall not be constructed in water with a depth greater than 45 metres between LAT and the seabed.

(3) Each gravity base foundation forming part of the authorised development shall not have—

(a) a diameter at the level of the seabed which is greater than 45 metres;

(b) a base height, where there is a flat base, which is greater than 7.5 metres above the level of the seabed;

(c) a column diameter, where there is a flat or conical base, of greater than 10 metres;

(d) a cone/column intersect which is higher than 20 metres above the top of the base;

(e) a cone diameter at its base which is greater than 35 metres.

(4) In the event that any WTG uses a gravity base foundation of more than 35 metres diameter at the level of the seabed, the authorised development shall not comprise more than 101 WTG in total.

(5) Each space frame foundation forming part of the authorised development shall not have—

(a) for use with any WTG or meteorological mast, a spacing between each leg at the level of the seabed which is greater than 40 metres and at the level of LAT which is greater than 25 metres;

(b) for use with any offshore substation platform, accommodation platform or collection platform, a spacing between each leg at the level of the seabed which is greater than 55 metres in one direction and 40 metres in a perpendicular direction, and at the level of LAT which is greater than 40 metres in one direction and 30 metres in a perpendicular direction;

(c) more than two piles per leg or more than one suction can per leg;

(d) a pile diameter which is more than 3 metres each;

(e) for use with any WTG or meteorological mast, a suction can diameter greater than 11.5 metres each, where the total number of suction cans per structure is 3 or fewer;

(f) for use with any WTG or meteorological mast, a suction can diameter of greater than 10 metres each, where the total number of suction cans is more than 3;

(g) for use with any offshore substation platform, accommodation platform or collection platform, a suction can diameter of greater than 17 metres each, where the total number of suction cans is 4 or fewer;

(h) for use with any offshore substation platform, accommodation platform or collection platform, a suction can diameter of greater than 10 metres each, where the total number of suction cans is more than 4;

(i) more than 4 legs for a WTG or meteorological mast, or more than 6 legs for an offshore substation platform, accommodation platform or collection platform.

(6) Each suction monopod foundation forming part of the authorised development shall not have—

(a) a diameter at the level of the seabed which is greater than 25 metres;

(b) a base height, where there is a flat base, which is greater than 7.5 metres above the level of the seabed;

(c) a column diameter which is greater than 9 metres.