United Kingdom · island electricity systemElectricity in Jersey
The electricity system of Jersey: who operates it, how it is supplied, its plants and interconnections, and what the operator publishes.
The generation fleet, 2026
Installed capacity by source, summed from the plants listed by Jersey Electricity, each with its source; the operator publishes no total.
| Source | Capacity (MW) | Of total |
|---|---|---|
| Solar1 installations | 4 | 100.0% |
The arrows and figures are measurements. The transmission grid is not shown: we do not have its routes for this country yet.
Interconnections and submarine cables
The flow on each link is the one published by REE, every five minutes. The diagram is not to scale.
| Project | Flow now | End points | Voltage | Capacity | Length | Cables | In service since | Sources |
|---|---|---|---|---|---|---|---|---|
Normandie 1 |
no reading |
Jersey↔ Normandie (France) |
—alternating current |
100 MW |
— |
— |
2016 |
|
Normandie 2 |
under construction |
Jersey↔ Normandie (France) |
—alternating current |
— |
— |
— |
— |
|
Normandie 3 |
no reading |
Grouville Bay↔ Périers (France) |
—alternating current |
— |
32 km under the sea 58 km in total |
— |
2014 |
|
GJ1 (Jersey–Guernsey) |
no reading |
Jersey↔ Guernsey |
—alternating current |
60 MW |
— |
— |
2000 (înlocuit 2019) |
Jersey Electricity does not publish the flow on these interconnections in real time; the table shows the verified facts of each link.
Who supplies the electricity?
Who operates, distributes and generates in Jersey; every line has its official source. Verified on 2026-09-19.
| Role | Company |
|---|---|
System and grid operator |
Jersey Electricity plcsole supplier: generation, import, transmission, distribution |
System and grid operator |
Channel Islands Electricity Grid (CIEG)50/50 Jersey Electricity · Guernsey Electricity — cablurile Franța–Jersey–Guernsey |
Generators
| Plant | Location | Owner | Technology | Capacity | Status | Sources |
|---|---|---|---|---|---|---|
La Collette Power Station — diesel |
St Helier |
Jersey Electricity |
Oil |
49.5 MW |
operation limited to a number of hours per year |
|
Queen's Road — gas turbines |
St Helier |
Jersey Electricity |
Oil |
— |
operation limited to a number of hours per year |
|
Moulin à Vent solar farm |
— |
Jersey Electricity |
Solar |
4 MW |
in service |
- Real-time data: not published. Jersey Electricity does not publish live demand or generation for Jersey.
- Periodic publication: Jersey Electricity — Annual Report and Accounts (annual).
- Market price: none. Jersey is supplied under a regulated tariff.
- Flows on the interconnections: not published in real time by Jersey Electricity.
- Data licence: Jersey Electricity does not state one. The data are shown with attribution and the time of reading and are not redistributed through the API.
Jersey Electricity · Jersey Electricity — Annual Report and Accounts
Frequently asked questions
Where do the figures on this page come from?
There are no live figures: Jersey Electricity does not publish real-time data. The infrastructure facts come from official documents, each with its link, and the periodic figures are in Jersey Electricity — Annual Report and Accounts.
Is Jersey connected to another electricity system?
Yes, through: France · Normandie, GJ1 (Jersey–Guernsey). The table above gives the voltage, capacity, length and year of each link, with its source.
Is there an electricity market price for Jersey?
There is no market price for Jersey: the island is supplied under a regulated tariff, without a wholesale market of its own. No price from another zone is shown here.