Collett Completes Transport of Two 180t Super Grid Transformers – Heavy Lift News
31 Jan 2022

Collett Completes Transport of Two 180t Super Grid Transformers

Following on from the delivery of two 160t shunt reactors for Neart na Gaoithe Offshore Wind Farm, Collett complete stage two of the project, delivering two 180t super grid transformers to the onshore substation.

As with the first stage of the project, Collett were appointed to provide a door-to-door service for both super grid transformers.  Once again working with their trusted partners, Collett transported the loads from the client’s factory to port ahead of their journey to the UK.

Shipping into the Port of Sunderland, the two transformers were discharged from the vessel using a 550t strut crane and landed onto their 14-axel lines flat top trailer with all work carried out under Collett’s scope of responsibility.

As posted on on 24 December last year, Collett’s Projects Department chartered the Terra Marique ro/ro barge for the second stage of the transport project.

Utilising the vessel’s hydraulic roadway, each of the loaded trailers were safely driven onto the vessel by the Collett Team and secured for the onward 20-hour voyage to the jetty at EDF UK’s Torness Power Station in East Lothian.  On arrival, Collett were once again on hand to undertake futher transport operations.

Having rolled the two transformers from the vessel on day 1 of this stage of the operation, the units were transported out of the power station on consecutive days for the 5 mile journey to the onshore substation site.

Under the pull of a single 8×4 tractor unit and with Collett’s escort the convoy travelled the short distance North on the A1 to the Innerwick junction with road closures in place between 6am and 6:30am.

On reaching the Innerwick junction, Collett added a second tractor unit at the rear providing additional traction, travelling in a push/pull formation.  This formation was then strengthened on final approach with a third tractor unit, effectively double-heading the combination along the 2½ mile challenging track to the construction site. With the permission of East Lothian Council and under a traffic management plan, the transformers were transported with rolling road closures on the minor roads to facilitate safe passage to site.

For the delivery of the second transformer on day 2, the Collett Team employed a fourth tractor unit, due to adverse weather conditions having an impact on the accessibility of the site roads. With one unit pushing the loaded 14 row flat bed and three units pulling, the required traction was provided to deliver the final 180t super grid transformer to the site.

Having delivered the super grid transformers to the substation site, both were offloaded and installed onto their respective bunds by Collett Heavy Lift, utilising specialist hydraulic jacking and skidding equipment and completing stage two of the project.

The Neart na Gaoithe Offshore Wind Farm, jointly owned by EDF Renewables and ESB, will feature up to 64 turbines and with a planned capacity of 450MW, will be capable of powering up to 391,000 homes.

↓↑ Discharging the transformers on to Collett’s trailers in Sunderland Photographs courtesy of Collett

Loading the transformers in the Port of Sunderland. Photograph courtesy of Robert Wynn & Sons

Discharge at the Torness Power Station berth Photograph courtesy of Robert Wynn & Sons


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