It forms part of the Greenlink Interconnector Project with the potential to power 380,000 homes.
The interconnector will transfer power using high voltage direct current via submarine and underground cables over 200km between two converter stations located in Wexford, Ireland and Pembroke, Wales.
Keltbray previously delivered the Viking Link Enabling and Platform works, another interconnector project in Lincolnshire, on behalf of Siemens Energy.
Rich Smith, Pre-Construction Director at Keltbray said, “It’s fantastic to continue our relationship with Siemens Energy through the award of this prestigious scheme. Greenlink is a flagship project for Keltbray, and we look forward to commencing on site and working with all project and local stakeholders throughout to deliver on this vital development.”
Keltbray is due to start on site later this month with completion expected late summer 2023.
The firm has also confirmed work on the third phase of the world’s largest offshore wind farm at Dogger Bank.
Keltbray will deliver converter station civils works with main contractor Hitachi on the third phase after working on the first two phases with a combined contract value the Enquirer understands to be around £20m.
Dogger Bank Wind Farm is being built in the North Sea more than 130km from the Yorkshire coast in three phases known as Dogger Bank A, B and C.