The 132kV twin-circuit line will tie the development's subsea cable into a new National Grid substation at Necton, Norfolk, 47km from landfall.
Carillion will also undertake civil engineering and installation activities, including crossing a number of watercourses and strategic roads using trenchless techniques.
The onshore cabling project will start later this year, with commissioning set for 2016.
"This project builds on the excellent relationship that Carillion
