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Greece — Energy Infrastructure

OverWatts maps 321 energy assets in Greece across 10 layers — the 29th-largest mapped base of 157 countries. They include 268 power plants, 10 pipelines and 9 grid storages. Operating generation capacity is 13.7 GW, led by gas at 52%. Refining capacity is about 370 kb/d.

The companies named on the most assets are Public Power Corporation SA (50), Terna Energy (13) and DESFA SA (9), counting both ownership and operatorship. Half of Greece's mapped assets in service predate 1990 (median commissioning year of the 50 with a known date), 8 came online in the past decade and the oldest still listed is Eleusis Cement Plant, dating from 1902. 40+ projects are under construction or proposed, led by Amvrakikos Kolpos-Boukka solar farm (6.7 GW).

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321
Total assets
#29
of 157 countries
13.7 GW
operating · 268 power plants
370
Refining kb/d
37
LNG Mtpa
40
In construction / proposed

Operating generation capacity by fuel

Utility-scale sites of 100 MW and above. Distributed generation — rooftop solar especially — is outside the tracker, so this runs below national installed capacity.

Electricity generated by fuel · 2025

What the fleet actually produced — distinct from the installed capacity above.

Total 57.9 TWhDemand 55.4 TWhClean 48%Intensity 324 gCO₂/kWhNet exporter 2.5 TWh

Ember · source · CC-BY-4.0

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Browse by asset class

Power grid 3,062 kmPower Plants 268Pipelines 10Grid Storage 9LNG Terminals 8Interconnectors 7Cement Plants 7Coal & Uranium Mines 4Iron & Steel Plants 4Refineries 3Chemical Plants 1

Under construction & proposed

Largest assets

Biggest owners & operators

Counts an asset once per company named as its owner or operator; a joint venture counts for each partner.

Frequently asked

How many energy assets does Greece have?
OverWatts maps 321 in Greece across 10 asset classes — the 29th-largest mapped base of the 157 countries covered.
How much electricity generation capacity does Greece have?
About 13.7 GW operating across 33 plants, mostly gas 52%, hydro 22% and coal 12%.
Who owns Greece's energy infrastructure?
Public Power Corporation SA is named as owner or operator on the most mapped assets (50), followed by Terna Energy (13), DESFA SA (9) and Cero Generation (5).
What energy projects are under construction in Greece?
The largest under way or proposed are Amvrakikos Kolpos-Boukka solar farm (6.7 GW), Panayitsa Pouda Kouvelos solar farm (6.3 GW) and Greece – Libya interconnection (planned) (2.0 GW).