WPP believes that wind is a cornerstone renewable energy with an lower priced CAPEX (often less $2m per MW of installed capacity) lower cost than many other renewable sources. Wind feasibility studies are a most as wind solutions are not viable in regions with little wind. Typically wind speeds of approx 20 km/h are needed. Onshore wind turbines typically range in capacity from 3MW to 7MW. Offshore can range from a 8MW to a 14MW behemoth turbine.