Hornsea Three – Orsted

This project is for an offshore windfarm by Orsted a Danish Energy Company.

The location of Hornsea Project Three is within the North Sea to the east of Hull.

The wind farm consists of a maximum of 231 turbines off the coast of Hull and will make landfall at Weybourne, North Norfolk with a buried cable route between Weybourne and grid connection at Norwich Main National Grid Substation. The route will run through three Local Authorities North Norfolk, Broadland and South Norfolk.

Both Broadland District Council and South Norfolk Council will host the cable route. The cable corridor will be 80m in width, within which is a 60m permanent easement post installation.

South Norfolk, due to the grid connection for the generated electricity being Norwich Main, will also have the new substation/converter, located at a site northwest of Mangreen Hall, adjacent the B1113 to the west and A47 to the north. It will consist of a range of equipment for the delivery of power to National Grid such as transformers, reactors etc. and ancillary and supporting equipment. The main equipment will be housed within single or multiple buildings, in an open yard or a combination of the above. If multiple buildings are used the length and width of these buildings would be reduced proportionally to the number of buildings. The site area for all infrastructure is 149,302 sq. m.

The detailed design and materials of the substation/converter did not form part of the DCO; however, the maximum design parameters were provided and agreed. Main buildings: 220m if a single building and if multiple buildings no more than 150m in length, width 75m with a maximum height of 25m.

The Local Planning Authority are responsible for the Discharge of Requirements (conditions) attached to the Development Consent Order.

Current and decided Discharge of Requirements can be found on the Councils’ website.

The latest updates for this project can be found here