It believes a wind farm of between 900MW to 1.2GW can be developed in a 76 square mile area. At its closest point the project will be 8.2 miles away from land.
However, there could be opposition to the project, which will be located near Swanage and Bournemouth, both popular tourist destinations. It will also be in view of the South Coast Path, which is popular with walkers.
The development is now subject to a formal consultation process. Eneco will also be holding a series events to inform the public about the wind farm.