Wave Hub, a wave energy demonstration site, comprises offshore and onshore infrastructure combined with an offshore safety management system.
The site is connected to the onshore substation by a subsea cable arrangement rated at 33kV. The subsea cable terminates at the Wave Hub, where the two 3 core power circuits of the subsea cables are connected to the four three core cable tails which connect to a wave energy device via a subsea connector and the final dynamic cable.
The onshore substation houses the 33kV and 11kV switchgear required to connect the test site to the grid and the 11kV/33kV transformer with associated reactive power correction equipment to ensure delivery to the grid within the relevant grid codes.
Control and monitoring of wave energy devices is performed remotely via fibre optic cables within the main cable. Power metering is performed at the lead device on each array and at the substation exit breaker.