ScotWind offshore wind farm field project consists of 15 seabed area rights included in a licensing round and lies off the east and west coast of Scotland, UK, as shown in the map. Much of the areas are in water depths of 5o – 100 m where both bottom-fixed and floating offshore wind turbines could be an option.
There are large deepwater areas with water depths below 70 meters. The initial planned development is 10000 MW (10 GW) which indicate the need for 6-700 wind turbine foundation structures. The total capacity of the seabed rights may however be developed up to 26 GW including options.
The waters depths at the ScotWind project are 97% deeper than 50 meters, which may limit the used bottom fixed monopiles to only the shallowest areas. Recent studies conclude that less than 5% is suitable for standard monopiles (<50m), 25% is suitable for jacket foundations (50-70m) and the remaining 70% would be most suitable for floating offshore wind (>70m). The used of XXL monopiles that are suitable for 60 meters may replace some of the jacket solutions, however the number of jackets would increase if these were designed suitable for water depths up to 80 meters.