Premier Service Marine Engineering Ltd contracted Yorkshire firm Cameron Forecourt to install the water-based fuel system, which includes above-ground petrol and storage tanks, pontoon-based fuel pumps and protected flexible fuel lines.
The project was started in April – because of the lowest tides – and took six weeks to complete.
The main problem for both firms was the tidal movement, which has a range up to 12 metres, and work could only be carried out over short day-time and night-time low tide periods.
Premier director Steve Huelin said: ‘The work included dredging and laying 200 tonnes of reinforced concrete for a flat base.
If this had not been finished at the lowest tides of the year the work would have had to be put on hold.
The system includes three fuel storage tanks in a purpose-built recess on the quay wall walkway.
Each fuel tank has an in-tank submersible pump with built-in leak detection facilities.
The companies say that the system ensures safety at all times.
Safety cut-off points can be activated from the pontoons and quay if the need arises.
