Offshore Wind Energy has been forecasted from around 3 GW to 75 GW by 2020 as countries in Europe,Asia and North America heavily support this industry.Note onshore wind energy growth has slowed down as 38 GW of Wind Capacity were installed in 2010.Offshore Wind Energy is being subsidized as it has a number of advantages over onshore wind power despite its higher costs.The oppurtunity is so large that South Korea shipbuilders like Samsung,Daewoo and Hyundai are investing heavily in this area.Note Onshore Wind Energy also has many advantages which have overcome the drawbacks to become the biggest green industry.Offshore Wind Power is set to take up the growth baton fro Onshore Wind as Costs are expected to come down as the industry and technology matures and more Wind Turbine Companies gain experience in this area.Note USA has 4000 GW of Offshore Wind Capacity which is enough to meet the entire electricity need of the biggest power consumption country in the world.