To add some more points the others have made: - You can make the turbines substantially bigger offshore than onshore - There's better wind offshore - Both the

To add some more points the others have made: - You can make the turbines substantially bigger offshore than onshore - There's better wind offshore - Both the previous ensure there is a higher capacity factor - There's a lot more flexibility in connecting to the grid. Grid accessibility is a huge challenge in siting onshore projects. You either need to be near an access point or conquer the immense, years long hurdles of constructing new transmission lines - The farms can have a large number of turbines which makes capital and labor more efficient