Greece · island electricity systemElectricity in Chios
The electricity system of Chios: 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 ΔΕΔΔΗΕ / HEDNO, each with its source; the operator publishes no total.
| Source | Capacity (MW) | Of total |
|---|---|---|
| Oil1 installations | 32 | 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 |
|---|---|---|---|---|---|---|---|---|
Διασύνδεση Βορείου Αιγαίου (σκέλος Λέσβος–Χίος) |
planned |
Χίος↔ Λέσβος |
150 kValternating current |
— |
— |
— |
— |
ΔΕΔΔΗΕ / HEDNO 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 Chios; every line has its official source. Verified on 2026-09-19.
| Role | Company |
|---|---|
Distribution |
ΔΕΔΔΗΕ / HEDNOΔιαχειριστής ΜΔΝ — ΗΣ Χίου (Χίος, Οινούσσες, Ψαρά) |
Main generator |
|
Regulator |
Generators
- Real-time data: not published. ΔΕΔΔΗΕ / HEDNO does not publish live demand or generation for Chios.
- Periodic publication: ΔΕΔΔΗΕ — Μηνιαία Δελτία ΑΠΕ και Θερμικών Μονάδων στα ΜΔΝ (monthly).
- Market price: none. Chios is supplied under a regulated tariff.
- Flows on the interconnections: not published in real time by ΔΕΔΔΗΕ / HEDNO.
- Data licence: ΔΕΔΔΗΕ / HEDNO does not state one. The data are shown with attribution and the time of reading and are not redistributed through the API.
ΔΕΔΔΗΕ / HEDNO · ΔΕΔΔΗΕ — Μηνιαία Δελτία ΑΠΕ και Θερμικών Μονάδων στα ΜΔΝ
Frequently asked questions
Where do the figures on this page come from?
There are no live figures: ΔΕΔΔΗΕ / HEDNO does not publish real-time data. The infrastructure facts come from official documents, each with its link, and the periodic figures are in ΔΕΔΔΗΕ — Μηνιαία Δελτία ΑΠΕ και Θερμικών Μονάδων στα ΜΔΝ.
Is Chios connected to another electricity system?
Yes, through: Διασύνδεση Βορείου Αιγαίου (σκέλος Λέσβος–Χίος). The table above gives the voltage, capacity, length and year of each link, with its source.
Is there an electricity market price for Chios?
There is no market price for Chios: the island is supplied under a regulated tariff, without a wholesale market of its own. No price from another zone is shown here.