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Bulgaria — Energy Infrastructure

OverWatts maps 106 energy assets in Bulgaria across 9 layers — the 59th-largest mapped base of 157 countries. They include 49 power plants, 29 pipelines and 10 interconnectors. Operating generation capacity is 10.2 GW, led by coal at 40%. Refining capacity is about 196 kb/d.

The companies named on the most assets are Bulgartransgaz (28), Natsionalna Elektricheska Kompania (NEK) (13) and Bulgarian Energy Holding EAD (4), counting both ownership and operatorship. Half of Bulgaria's mapped assets in service predate 1975 (median commissioning year of the 48 with a known date), 15 came online in the past decade and the oldest still listed is Zlatna Panega Cement Plant, dating from 1907. 29 projects are under construction or proposed, led by Kozloduy nuclear power plant (2.0 GW).

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106
Total assets
#59
of 157 countries
10.2 GW
operating · 49 power plants
196
Refining kb/d
29
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 38.0 TWhDemand 36.7 TWhClean 72%Intensity 275 gCO₂/kWhNet exporter 1.3 TWh

Ember · source · CC-BY-4.0

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Browse by asset class

Power grid 4,909 kmPower Plants 49Pipelines 29Interconnectors 10Coal & Uranium Mines 6Cement Plants 4Grid Storage 3Chemical Plants 3Refineries 1Iron & Steel 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 Bulgaria have?
OverWatts maps 106 in Bulgaria across 9 asset classes — the 59th-largest mapped base of the 157 countries covered.
How much electricity generation capacity does Bulgaria have?
About 10.2 GW operating across 27 plants, mostly coal 40%, hydro 21% and nuclear 20%.
Who owns Bulgaria's energy infrastructure?
Bulgartransgaz is named as owner or operator on the most mapped assets (28), followed by Natsionalna Elektricheska Kompania (NEK) (13), Bulgarian Energy Holding EAD (4) and Mini Maritsa Iztok EAD (3).
What energy projects are under construction in Bulgaria?
The largest under way or proposed are Kozloduy nuclear power plant (2.0 GW), Bulgaria – Turkey interconnection (planned) (1.1 GW) and Bulgaria – Greece interconnection (planned) (930 MW).