Paragraph 2 Offshore design parameters
The wind turbine generators to be constructed or operated within Work No.1 of the authorised development must be located within the area delineated by the co-ordinates in the following table and shown on sheet 3a of the offshore order limits and boundary co-ordinates plan—
| (1) Point | (2) Latitude | (3) Longitude |
|---|---|---|
| 36 | 51° 46.18399’N | 01° 51.52207’E |
| 37 | 51° 46.45215’N | 01° 51.46739’E |
| 38 | 51° 47.79417’N | 01° 56.0602’E |
| 39 | 51° 45.96006’N | 01° 54.98406’E |
| 40 | 51° 44.20008’N | 01° 56.16270’E |
| 41 | 51° 43.43466’N | 01° 58.08954’E |
| 42 | 51° 44.92260’N | 02° 02.79174’E |
| 43 | 51° 44.20590’N | 02° 02.65992’E |
| 44 | 51° 44.16756’N | 02° 02.36766’E |
| 45 | 51° 43.89822’N | 02° 01.62702’E |
| 46 | 51° 43.70418’N | 02° 01.18500’E |
| 47 | 51° 43.46172’N | 02° 00.54066’E |
| 48 | 51° 42.90816’N | 01° 59.73738’E |
| 49 | 51° 42.25464’N | 01° 58.18482’E |
| 50 | 51° 41.80842’N | 01° 58.22082’E |
| 51 | 51° 38.66118’N | 01° 54.67986’E |
| 52 | 51° 37.76189’N | 01° 52.32853’E |
| 53 | 51° 39.03140’N | 01° 52.10085’E |
| 54 | 51° 40.08359’N | 01° 52.71647’E |
| 55 | 51° 40.32461’N | 01° 52.55921’E |
| 56 | 51° 40.41888’N | 01° 52.66356’E |
| 57 | 51° 40.36970’N | 01° 52.53295’E |
| 58 | 51° 40.36967’N | 01° 52.52982’E |
| 59 | 51° 40.80925’N | 01° 52.24298’E |
| 60 | 51° 41.18441’N | 01° 51.71421’E |
| 61 | 51° 41.78502’N | 01° 51.60623’E |
| 62 | 51° 45.61162’N | 01° 51.61163’E |
The offshore works must be constructed in accordance with the parameters set out in the following table—
| (1) Parameter | (2) Value |
|---|---|
| Maximum number of wind turbine generators | 57 |
| Maximum total rotor swept area (m2) | 3,032,694.06 |
| Maximum height of wind turbine generators when measured from MHWS to the tip of the vertical blade (m) | 377.39 |
| Maximum rotor diameter of each wind turbine generator (m) | 337 |
| Minimum distance from MHWS to the lowest point of the rotating blade for each wind turbine generator (m) | 27 |
| Minimum distance between wind turbine generators (downwind) measured from the centre point of each wind turbine generator) (m) | 1180 |
| Minimum distance between wind turbine generators (crosswind) measured from the centre point of each wind turbine generator) (m) | 944 |
| Maximum pile diameter of single pile structures (m) | 17 |
| Maximum pile diameter of two or more pile structures for wind turbine generator (m) | 6 |
| Maximum pile diameter of two or more pile structures for offshore platform (m) | 3.5 |
| Maximum total seabed footprint for installed wind turbine generators (excluding scour protection) (m2) | 94,729 |
| Maximum total seabed footprint for installed wind turbine generators (including scour protection) (m2) | 2,709,162 |
| Maximum total scour protection volume for wind turbine generator foundations (m3) | 4,882,186 |
| Maximum total length of inter-array cables (km) | 170 |
| Maximum inter-array cable protection area (m2) | 204,000 |
| Maximum inter-array cable protection volume (m3) | 119,000 |
| Maximum dimensions of offshore substation platforms: | |
| Height when measured from MHWS (m) (including cranes and helideck) | 61.68 |
| Length (m) | 60 |
| Topside area (m2) | 2,400 |
| Maximum dimensions of offshore converter platform: | |
| Height when measured from MHWS (m) (including cranes and helideck) | 111.62 |
| Length (m) | 130 |
| Topside area (m2) | 10,400 |
| Maximum total seabed footprint for two offshore substation platforms: | |
| (excluding scour protection) (m2) | 5890 |
| (including scour protection) (m2) | 166,715 |
| scour protection volume (m3) | 50,316 |
| Maximum total length of export cables (km) | 125.4 |
| Maximum export cables cable protection area (m2) | 75,240 |
| Maximum export cables cable protection volume (m3) | 43,890 |
| Maximum total length of platform interconnector cable (km) | 20 |
| Maximum platform interconnector cable protection area (m2) | 24,000 |
| Maximum platform interconnector cable protection volume (m3) | 14,000 |
Any part of the authorised development located within the following areas shown on the Deep Water Route Cable Installation Area (Future Dredging Depths) Plan, must be designed, installed, operated and maintained at a level which would not preclude or impede dredging—
of the area shown shaded in orange and labelled Sunk A – Sunk DW Buffer, to a level of 22 metres below Chart Datum;
of the area shown shaded in pink and labelled Trinity – Trinity DW Buffer, to a level of 22 metres below Chart Datum;
of the area shown shaded in green and labelled Sunk B – Sunk DW Buffer, to a level of 19 metres below Chart Datum; and
of the area shown shaded in blue and labelled Sunk Pilotage Area – Sunk Pilot Diamond Buffer, to a level of 22 metres below Chart Datum.