The OSS (Offshore Substation) locations are in the UK, approximately 120km off the coast of Yorkshire. Water depths in this area are 31.5, 29.1, and 17.7m, w.r.t. LAT. The Hornsea substations all consist of a steel topside installed on a piled jacket foundation.
The three OSS (3x400MW) function as collector stations from where export cables run to one Reactive Compensation Substation, from where the power is sent to shore. The three OSSs are inter-linked by HV cables to secure redundancy.
The OSS functional requirements are as follows:
The topside is built up as a multi-storey steel structure with five deck levels including the Roof Deck.
Kent successfully constructed this impressive structure in the North Sea. We devised the concept design, before the structure underwent fabrication and installation.