The system that powers everything we do is buried beneath our feet.
It's our team that needs to replace a grid originally designed to supply the demand of 20th-century Guernsey with an infrastructure that can power our busy modern lives.
But we do understand how frustrating roadworks can be. As we don't use overhead power lines in Guernsey, the bulk of our network is underground cabling which means you'll probably notice more roadworks around as we modernise the island's electricity system.
Following the States approval of the Electricity Strategy in 2023, our team are well underway implementing the Energy Transition which involves a staged upgrade of the electricity network from 2023 to 2050.
Guernsey Electricity Infrastructure Plans
Below we've listed Guernsey Electricity's roadwork plans for 2024.
As much of the work needs permission and consultation with various stakeholders, there's no guarantee that these listed plans will necessarily go ahead and specific dates may change. However as of the time of writing, the following information is correct.
Jargon translation
| Green Sector | This refers to a section of the island covering the South/South East Corner of Guernsey which currently is the area most affected by supply overload. |
| HV | High Voltage |
| LV | Low Voltage |
| Fibre optic ducting | A system of protective channels or conduits designed to house and safeguard fibre optic cables for data transmission. |
| Jointing | Connecting and sealing electrical cables or wires to ensure a safe and efficient flow of electricity |
11 February - 19 April 2024
Prince Albert Road - Closure 1
Installing HV, LV and fibre optic ducting to enable new transformers at Princess Elizabeth Hospital to supply the Green Sector to help reduce the current overloading in this area of the island.
Status:
Approved
1 April to 17 May 2024
Rue Cotelle & Les Martins Lane
Installing HV, LV and fibre optic ducting to replace end-of-life HV cabling between Rue des Auberts and La Villette
Status:
Approved
Prince Albert/ Mount Row/ Mount Durand/ Queens Road filter
19 April - 30 April 2024
Installing HV, LV & fibre optic ducting to allow the new electricity transformers at the Princess Elizabeth Hospital to supply the Green Sector to help reduce the area's current overloading. Originally this was planned to begin in late March 2024 but plans were deferred by a third party.
Status:
Approved
22 April to 15 May 2024
Brock Road/ Doyle Road/ Rouge Huis Avenue Junction
As Phase 1 of a bigger project, here we will install a new 10-way LV Distribution pillar in Brock Road & LV cabling into Doyle Road Overlay.
Access to Doyle Road will be from Elm Grove end of Brock Road only
Status:
Approved
1 May to 7 June 2024
Mount Row (East)
Install HV, LV & fibre optic ducting to enable new PEH transformers to supply Green Sector (South/ South East Corner of the island) and help reduce current overloading in the Green Sector.
Status:
Approved
15 May to 30 October 2024
Doyle Road - Full Closure
Phase 2 will involve an overlay of LV cables in Doyle Road to increase LV capacity, and install a new 8-way LV Distribution pillar in Doyle Road.
To provide the residents in this area with better access to electrical infrastructure for future installations such as electric heating and EV charging, we'll also upgrade all (47) Doyle Road services and install HV ducting for future strategic use.
Status:
Approved
17 May to 31 May 2024
Rue Cotelle and La Villette junction
Installing HV, LV and fibre optic ducting to replace end-of-life HV cabling between Rue des Auberts and La Villette.
Status:
Approved
31 May to 20 June 2024
Les Martins/ Les Hurettes/ Les Pages Junction
Installing HV, LV and fibre optic ducting to replace end-of-life HV cabling between Rue des Auberts and La Villette
Status:
In planning
1 June to 7 June 2024
Prince Albert Road - Closure 2
Pull in and joint HV cables and fibre optic ducting from Mount Row into Prince Albert Road
Status:
Approved
10 June to 16 August 2024
Mount Row (West) & Le Vauquiedor
Installing HV, LV & fibre optic ducting and cabling to enable the new transformers at the PEH to supply the Green Sector to reduce he current overloading.
We'll upgrade HV cabling between the Richmond substation and the PEH and complete an LV overlay in Mount Row. Additional load applications in this area are being refused at this time as the current LV network is at capacity so this upgrade should free up load in the area for additional electrical installations for residents.
Please note, over some weekends this closure will clash with planned works by Guernsey Water in Bailiff's Crossroads so diversion routes over these weekends may be longer.
Status:
Approved
20 June to 9 August 2024
Les Pages/Longtrac
Installing HV, LV and fibre optic ducting to replace end-of-life HV cabling between Rue des Auberts and La Villette
Status:
In planning
22 July to 26 July 2024
Rue de Dol
During the school summer holidays, continuation of trenching to duct across Rue de Dol to Les Effards Substation will happen for a new HV Cable to replace the currently overloaded HV cable.
Status:
Approved
22 July to 3 September 2024
Rue de la Masse
During the holidays, we'll install two new HV cables to help reduce overload on the Saumarez Park cabling which supplies Les Genats and the West Coast areas with electricity.
Status:
Approved
27 July to 16 August 2024
Ville au Roi/ Mount Row/ King's Road junction
Installing HV, LV and fibre optic ducting to allow the transformers at the PEH to supply the Green Sector and reduce current overloading in that area. This work must be done in the school summer holidays.
Please note: some weekends will clash with planned works by Guernsey Water in Bailiffs Cross so diversion routes over those weekends may be longer.
Status:
Approved
29 July to 23 August 2024
Baubigny Road
To replace currently the overloaded HV cable and upgrade the Baubigny secondary substation, during the summer holidays we'll implement a continuation of trenching to install new HV cable.
Status:
Approved
August 2024
Full closure (in stages) of Mount Row (West) and Le Vauquiedor
Crossing of Rue Mignot junction to connect fibre ducts and pull in HV cables.
Emergency service access to the hospital will be from Bailiffs Cross for first part then switch to from Ville au Roi, which will be coordinated with PEH management.
Status:
Approved
7 August to 19 August 2024
Route du Tertre/ Rue de la Lande junction
Installing two new HV cables to reduce overload on Saumarez Park cabling which supplies Les Genats and West Coast areas with electricity. This again will happen during the school summer holidays.
Status:
Approved
9 August to 27 September 2024
Le Hurettes Lane
Installing HV, LV and fibre optic ducting to replace end-of-life HV cabling between Rue des Auberts and La Villette
Status:
In planning
19 August to 3 September 2024
La Charotterie/ Ruettes Brayes Roundabout
Installing HV, LV and fibre optic ducting to enable the new transformers at the PEH to supply the Green Sector and reduce current overloading in that area.
Status:
In planning
16 September to 18 October 2024
Les Nicolles Lane
Installing HV, LV and fibre optic ducting to replace end-of-life HV cabling between Rue des Auberts and La Villette.
Status:
In planning
14 October to 30 October 2023
Ruette Brayes (lower)
Final jointing to connect and energise the new Green Sector cable - this work will complete our Green Sector project.
Status:
In planning
18 October - 29 November 2024
La Villette Road & Rue des Auberts Road
Final cable jointing for Rue des Auberts to La Villette overlay - final dates to be confirmed as the project progresses.
Status:
In planning
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