The work requires the closure of Route du Felconte from 30 August to 3 November. Route des Adams will also be closed from Wednesday 14 September through to Wednesday 19 October.
Pictured: Guernsey Electricity will be undertaking the work in three phases to minimise disruption.
Head of Distribution, Mike Lloyd, said the installation of the substation would help secure customer supplies.
“This installation forms an important part of our continual investment in the Island’s infrastructure and is required to make the local electricity network more robust and resilient,” he said.
“It has been designed to meet the increasing needs and demands of homes and businesses in the area. This work is necessary to allow us to replace a faulty substation and needs to be completed before the demand increases so we can maintain secure customer supplies in the area.”
Phase one of the project will see Rue du Felconte closed from 30 August to 14 September.
Pictured: Phase two will see the service installed across the junction of Rue du Felconte and Route des Adams in St Peter’s.
For Phase two, both Rue du Felconte and Route des Adams will be be closed from 14 September to 19 October while the service is installed across this main junction.
The third and final phase will see Rue du Felconte closed from 20 October to 3 November.
Mr Lloyd added: “To minimise inconvenience, we liaised closely with Traffic & Highways and delayed the work as much as possible until after last week’s West Show. We appreciate everyone’s patience during this period and our team will endeavour to reduce the disruption where possible.”