Delivering the Energy Transition | Guernsey Electricity

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2025

Delivering the Energy Transition

Following the States of Guernsey's approval to begin implementing the island's Electricity Strategy, the number of road closures will increase so we can upgrade Guernsey's network of underground cables.

Guernsey Electricity's Infrastructure Development

To see all the island's roadworks, please visit the Traffic and Highways website

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

Les Petites Mielles, Maladerie Road, Sandy Lane

20th January to 21st February 2025

LV cable upgrades and service connections

Application ref: P033644 

Approved

L’Hyvreuse

3rd February to 26th February 2025

Low voltage cabling upgrades

Application ref: P035832

Approved

Les Godaines, Les Martins, Rue Cotelle

10th February to 21st March 2025

High & low voltage cable installation, jointing and fibre duct pull

Application ref: P034852

Approved

La Rue Des Escailers, Rue De La Villette, Rue Des Grons

19th February to 26th February 2025

High and low voltage ducting and fibre pit installation

Application ref: P034854 

Approved

Rue A L’Or

24th February to 14th March 2025 

Substation installation and HV cable upgrades (Phase 2)

Application ref:P034291

Approved

Route De La Mare De Carteret

24th February to 2nd April 2025                    

HV and LV cable upgrades and service connections

Application ref: P033652

Approved

Route De Rocquaine, Route Du Coudre

10th March to 28th March 2025

Install new LV Distribution pillar

Application ref: P034611

Approved

Prince Albert Road

17th March to 31st March 2025

Fibre optic chamber and duct installation

Application ref: P034888

Approved

Grand Maison Road

5th May to 11th July 2025

LV cable upgrades and service connections

Application ref: P033404 

Approved

Amherst

9th June to 7th July 2025 

Low voltage network upgrade and substation replacement

(Access to Beau Sejour from Fosse Andre end from 9th June to 24th June, then from Rouge Rue end from 25th June to 1st July)

Application ref: P036154-GE1 

Approved

Kings Road/Rue A’Lor

7th July to 29th August 2025 

HV and LV cable upgrades and service connections

Application ref: P033377 

Approved

Landes du Marche

11th August to 22th August 2025 

Low voltage cable upgrade.

Access to Landes du Marche garage will be from Route de la Charruee/ Landes du Marche filter end

Application ref: P036411

Approved
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