United Kingdom — Energy Infrastructure

OverWatts maps 750 energy assets in United Kingdom across 15 layers — the 10th-largest mapped base of 157 countries. They include 320 oil & gas fields, 305 power plants and 36 pipelines. Operating generation capacity is 67.5 GW, led by gas at 51%. Refining capacity is about 1,171 kb/d.

The companies named on the most assets are Harbour Energy PLC (45), Shell (45) and Neo Energy Ltd (36), counting both ownership and operatorship. Half of United Kingdom's mapped assets in service predate 2001 (median commissioning year of the 377 with a known date), 74 came online in the past decade and the oldest still listed is Tata Steel Port Talbot steel plant, dating from 1905. 40+ projects are under construction or proposed, led by Hornsea wind farm (5.6 GW).

750
Total assets
#10
of 157 countries
67.5 GW
operating · 305 power plants
1,171
Refining kb/d
136
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 292 TWhDemand 321 TWhClean 64%Intensity 217 gCO₂/kWhNet importer 29.1 TWh

Ember · source · CC-BY-4.0

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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 United Kingdom have?
OverWatts maps 750 in United Kingdom across 15 asset classes — the 10th-largest mapped base of the 157 countries covered.
How much electricity generation capacity does United Kingdom have?
About 67.5 GW operating across 106 plants, mostly gas 51%, wind 28% and nuclear 10%.
Who owns United Kingdom's energy infrastructure?
Harbour Energy PLC is named as owner or operator on the most mapped assets (45), followed by Shell (45), Neo Energy Ltd (36) and Ithaca Energy PLC (29).
What energy projects are under construction in United Kingdom?
The largest under way or proposed are Hornsea wind farm (5.6 GW), Berwick Bank wind farm (4.1 GW) and Dogger Bank wind farm (3.7 GW).