OverWatts Atlas Live map
Browse the atlas

Spain — Energy Infrastructure

OverWatts maps 839 energy assets in Spain across 13 layers — the 9th-largest mapped base of 157 countries. They include 653 power plants, 51 pipelines and 41 cement plants. Operating generation capacity is 65.9 GW, led by gas at 42%. Refining capacity is about 1,224 kb/d.

The companies named on the most assets are Iberdrola SA (75), Enagás (60) and Endesa SA (39), counting both ownership and operatorship. Half of Spain's mapped assets in service predate 2002 (median commissioning year of the 300 with a known date), 71 came online in the past decade and the oldest still listed is Añorga Cement Plant, dating from 1901. 40+ projects are under construction or proposed, led by HyDeal España solar farm (9.5 GW).

Open on the map →Live grid mix↓ Dossier (.md)
839
Total assets
#9
of 157 countries
65.9 GW
operating · 653 power plants
1,224
Refining kb/d
113
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 288 TWhDemand 275 TWhClean 75%Intensity 154 gCO₂/kWhNet exporter 12.8 TWh

Ember · source · CC-BY-4.0

On the interactive map

Open the interactive map →

Browse by asset class

Power grid 29,800 kmPower Plants 653Pipelines 51Cement Plants 41Grid Storage 35LNG Terminals 17Iron & Steel Plants 17Refineries 7Interconnectors 7Chemical Plants 6Export Terminals 2Data Centres 1Oil & Gas Fields 1Iron Ore Mines 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 Spain have?
OverWatts maps 839 in Spain across 13 asset classes — the 9th-largest mapped base of the 157 countries covered.
How much electricity generation capacity does Spain have?
About 65.9 GW operating across 183 plants, mostly gas 42%, solar 20% and hydro 18%.
Who owns Spain's energy infrastructure?
Iberdrola SA is named as owner or operator on the most mapped assets (75), followed by Enagás (60), Endesa SA (39) and Capital Energy (21).
What energy projects are under construction in Spain?
The largest under way or proposed are HyDeal España solar farm (9.5 GW), Zaragoza and Teruel solar farm (2.6 GW) and Spain – France interconnection (planned) (2.2 GW).

Related insights