Work begins this week at Rampion Offshore Wind Farm in preparation for the first foundation installation in January 2016.
The Rampion project is set to become the first offshore wind farm off the south coast of England and is believed to be the first UK Round 3 project to enter construction.
The initial work includes clearing boulders on the seabed along the cable route and around each of the 116 foundation positions to allow safe and effective installation.
Chris Tomlinson, Eon development manager for Rampion, said: “Assessment of the number of boulders is still underway but is likely to be in the thousands and up to six vessels will be on site to undertake the work over the next many months.
“Great efforts will be made to replicate the seabed as it is now and all boulders moved will be weighed and the new position recorded.”
The first 12 stages of the onshore project have also commenced. Access points will be constructed first to allow construction of a haul road along the cable route.
This will be followed by trenching works to lay the ducting for the cables and, finally, the reinstatement of the ground.
Work will start on building the onshore substation in Twineham towards the end of September.
When the turbines are fully complete in early 2018, the electricity cables will come ashore at the Brooklands Pleasure Park in Worthing and will transport power along 27km of underground onshore cable to the new substation at Twineham where it will be connected to the grid.