Hornsea Project One Onshore Substation (Killingholme)
North Killingholme, North Lincolnshire, England · 2016–2019 (Onshore construction began early 2016, operational June 2019) [1] · £25 million (Balfour Beatty contract for onshore substation); part of overall £6 billion Hornsea Project One investment. [1] [2]
The judgement call
Account-gated at launchThe onshore substation uses Powercrete for high thermal conductivity. It is a critical component for connecting the world's biggest offshore wind farm (Hornsea Project One) to the UK national grid. [1] [3]
Key engineering challenges
Construction of a large onshore substation facility to handle 1.2 GW of power from an offshore wind farm. [1] - Laying approximately 40km of underground onshore cables from the landfall site to the substation. [1] - Integrating the substation with the existing National Grid transmission system. [3]
Project facts
- Client / owner
- Orsted (formerly DONG Energy)
- Lead contractor
- Balfour Beatty (onshore substation construction) [1]
- Lead designers
- RINA (lightning protection and earthing design services for the onshore substation) [1]
- Project type
- new build
- Scale
- 1.2 GW capacity (for Hornsea Project One); 32,200m² onshore substation area; 40km onshore cable route. [1] [3]
- Disciplines
- electrical; civil; structural; environmental; project management
- Standards & frameworks
- UK grid codes.
Sources: Power-technology.com: Hornsea Project One, Offshore Wind Farm, North Sea (https://www.power-technology.com/projects/hornsea-project-one-north-sea/) [1] - Wikipedia: Hornsea Wind Farm (https://en.wikipedia.org/wiki/Hornsea_Wind_Farm) [2] - Billington Structures: Hornsea Onshore Substation (https://billington-structures.co.uk/projects/all/hornsea-onshore-substation/) [3]