New substation site cabins prove a tall order

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In a text book operation yesterday, Jayen Ltd, Civil Works Contractors on Jersey Electricity’s new £17m St Helier West primary substation, lifted five container-style cabins into the challenging site part way up the steep slope of Westmount Gardens.

The crane used 42 metres of it total 50-metre jib to hoist the heavy steel cabins and stair cases from their transporter on La Route de St Aubin, over the trees and into position on the west side of the actual site works.

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The road was closed to traffic from 7am until noon – though all bus services were escorted through the works having to negotiate lamp columns and trees on the pavement  – but the work was completed well ahead of schedule, prompting Jayen Contracts Director Steve Elliott to comment: ‘That’s just how we like it! It’s all gone very well.’

The cabins will form site offices, a canteen and toilet block for the duration of the build which is expected to take two years. Jayen were awarded the Civil Works contract in December and began work at the start of January after almost 12 months of site investigations by Jersey Electricity to ensure the specification was properly prepared and the old quarry wall could be safely removed while maintaining the ground stability.

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Jayen will now continue to clear the old quarry site, remove the old retaining wall and construct a new wall that will blend into the landscape and protect the new substation below. Then French contractors INEO will take over the build of the substation itself. This is the fourth time the French specialists have been involved in such a project in Jersey.

The substation will secure existing and new supplies to the north and west of St Helier where the network has been near capacity for some time. It is expected in service early in 2018 with the landscaping and footpaths completed in autumn 2018.

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