Trial Lift Readies Subhub for Quayside Launch

Transportation contractors, Mar Train, completed a trial lift of the Subhub recently to reduced the risks associated with the load out to the quayside at Harland & Wolffe, Belfast, Northern Ireland.

The weight of Subhub throughout the build has been controlled in order to achieve the load out requirements which were proven by the Mar Train test lift.

As a result QED have refreshed all their stability models to ensure compliance with each load condition i.e. load out, transit to site, installation and recovery, and in-service conditions. Damage conditions and reserve buoyancy have also be considered carefully.

Exit is planned early in the new year, shortly after, the Subhub will be launched for final ballast testing and then towed to site ready for installation.

This load out phase of the project demonstrate how a tidal power plant such as Subhub (210kW) can be fully integrated at the quayside and deployed, installed and recovered in a single, quick offshore operation. There are no other moorings to lay just a single dry mate connection to make to an export cable which is grid compatible.

Mar Train test lift carried out using their 7-axle trailer to reduce the risk of the exit from the fabrication shed.
Mar Train take up the full load and lift Subhub off the upstands.