Navitus Bay – a 50/50 joint venture between French utility EDF and Dutch group Eneco – will now use up to 194 turbines from a previous maximum of 218, or 1.1GW, assuming the deployment of 5MW machines.

The area covered by the project falls to 155 sq km from a previous 175 sq km off the coasts of Dorset and the isle of Wight.

The