Opportunity and constraint mapping for floating offshore wind energy.

A) Opportunity map for floating offshore wind developments (light green is prime opportunity, mid-green is good opportunity and dark green is technical opportunity showing physical constraints (red areas) and policy constraints (from level 1, least constrained, in light yellow, to level 3, most constrained, in brown); B) ecological sensitivity map for offshore wind energy showing high sensitivity (purple areas), medium sensitivity (blue areas) and low/unknown sensitivity (green areas); and C) composite map showing remaining areas of opportunity for floating offshore wind turbines with low/unknown ecological sensitivity after all constraints have been applied (green areas).