Advantage #1: Aesthetics
Offshore wind turbines are obviously coming into much less human contact than those on land. Thus, people do not need to deal with the the noise pollution and eye sore that turbine cause for some. Farmers have complained that the whirring noise of turbines scare their livestock, while others simply do not like the sight of the turbines. Thus, with a move off land, the sounds and images of the turbines are nearly unnoticeable.
Advantage #2: Less Harm to Birds
In an attempt to cut down on bird deaths, offshore wind farms are located in specific areas of the ocean where birds do not frequently fly.
Advantage #3: More Wind
One of the greatest advantages that offshore wind farms have over those on land is the frequency of strong winds over the ocean. Studies have shown that winds offshore blow nearly 40 percent more often than on land. Consequently, offshore wind farms can outpace those on land in terms of capacity and possibly offset the higher construction costs.