Greece · island electricity system

Electricity in Crete

The electricity system of Crete: who operates it, how it is supplied, its plants and interconnections, and what the operator publishes.

ΑΔΜΗΕ / IPTO · ΔΕΔΔΗΕ / HEDNO does not publish real-time electricity data for Crete. No figure is shown here that the operator has not published; the latest official publication is ΔΕΔΔΗΕ — Μηνιαίο Δελτίο Συμμετεχόντων στο ΜΣΣ Κρήτης (monthly).

The generation fleet, 2026

Installed capacity by source, summed from the plants listed by ΑΔΜΗΕ / IPTO · ΔΕΔΔΗΕ / HEDNO, each with its source; the operator publishes no total.

Installed capacity 769MW reported for 2026 Cleaner energy for tomorrow

Renewables 0.0% 0 MW

Largest source Oil 100.0%

Against last year —

Source	Capacity (MW)	Of total
Oil3 installations	769	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
Κρήτη–Πελοπόννησος 150 kV	no reading	Κίσσαμος↔ Μαλέας (Πελοπόννησος)	150 kValternating current	2 × 200 MVA	135 km under the sea 174 km in total maximum depth 1,000 m	2	2021	[1]
Ariadne Interconnection (Κρήτη–Αττική)	no reading	Δαμάστα (Ηράκλειο)↔ Κουμουνδούρου (Αττική)	500 kVdirect current (HVDC)	1.000 MW	335 km under the sea maximum depth 1,200 m	2	2025	[1] [2]

ΑΔΜΗΕ / IPTO · 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 Crete; every line has its official source. Verified on 2026-09-19.

Role	Company
System and grid operator	ΑΔΜΗΕ / IPTOδίκτυο 150 kV και διασυνδέσεις
Distribution	ΔΕΔΔΗΕ / HEDNOΜΣΣ Κρήτης από 1.11.2021 — εκκαθάριση συμβατικών μονάδων
Main generator	ΔΕΗ / PPC
Regulator	ΡΑΑΕΥ / RAAEY

Generators

Plant	Location	Owner	Technology	Capacity	Status	Sources
ΑΗΣ Αθερινόλακκου	Λασίθι	ΔΕΗ	Oil	224.7 MW	in service	[1]
ΑΗΣ Λινοπεραμάτων	Ηράκλειο	ΔΕΗ	Oil	215.6 MW	in service	[1]
ΑΗΣ Χανίων (Ξυλοκαμάρα)	Χανιά	ΔΕΗ	Oil	329.1 MW	in service	[1]

What data exists and what does not

Real-time data: not published. ΑΔΜΗΕ / IPTO · ΔΕΔΔΗΕ / HEDNO does not publish live demand or generation for Crete.
Periodic publication: ΔΕΔΔΗΕ — Μηνιαίο Δελτίο Συμμετεχόντων στο ΜΣΣ Κρήτης (monthly).
Market price: none. Crete is supplied under a regulated tariff.
Flows on the interconnections: not published in real time by ΑΔΜΗΕ / IPTO · ΔΕΔΔΗΕ / HEDNO.
Data licence: ΑΔΜΗΕ / IPTO · ΔΕΔΔΗΕ / HEDNO does not state one. The data are shown with attribution and the time of reading and are not redistributed through the API.

ΑΔΜΗΕ / IPTO · ΔΕΔΔΗΕ / HEDNO · ΔΕΔΔΗΕ — Μηνιαίο Δελτίο Συμμετεχόντων στο ΜΣΣ Κρήτης

Frequently asked questions

Where do the figures on this page come from?

There are no live figures: ΑΔΜΗΕ / IPTO · 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 — Μηνιαίο Δελτίο Συμμετεχόντων στο ΜΣΣ Κρήτης.

Is Crete connected to another electricity system?

Yes, through: Κρήτη–Πελοπόννησος 150 kV, Ariadne Interconnection (Κρήτη–Αττική). The table above gives the voltage, capacity, length and year of each link, with its source.

Is there an electricity market price for Crete?

There is no market price for Crete: the island is supplied under a regulated tariff, without a wholesale market of its own. No price from another zone is shown here.

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