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Power Plants in Spain

Spain has 653 power plants mapped on the OverWatts open energy atlas — the 5th-largest fleet of the 155 countries that hold any, and 2% of the world's mapped total. Of these, 183 operating and 445 under construction or proposed. Operating generation capacity totals 65.9 GW across 183 utility-scale plants of 100 MW and above. The largest is HyDeal España solar farm (9.5 GW).

The largest owner-operators are Iberdrola SA (59), Endesa SA (35) and Naturgy Energy Group SA (21) — Iberdrola SA alone is named on 9% of them. Half of Spain's power plants in service predate 2007 (median commissioning year of the 172 with a known date), 66 came online in the past decade and the oldest still listed is Ricobayo I hydroelectric plant, dating from 1934. 445 are in the pipeline, led by HyDeal España solar farm (9.5 GW), proposed. They account for 78% of every energy asset OverWatts maps in Spain.

See them on the map →Power Plants worldwide →
653
Power Plant in Spain
#5
of 155 countries
65.9 GW
Operating capacity
445
In construction / proposed

Operating generation capacity by fuel

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Largest power plants in Spain

Who owns Spain's power plants

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

When they were built

Median commissioning year 2007 · oldest Ricobayo I hydroelectric plant (1934) · newest Pinta wind farm (2025) · 172 of 653 carry a start date

Under construction & proposed

How Spain compares · power plants by country

Frequently asked

How many power plants are there in Spain?
OverWatts maps 653 power plants in Spain — 2% of the world's mapped total, the 5th-largest national fleet of the 155 countries with any.
What is the largest power plant in Spain?
HyDeal España solar farm, at 9.5 GW.
How much power-generation capacity do Spain's power plants have?
About 65.9 GW operating across 183 plants, with a further 142 GW under construction or proposed. That covers utility-scale sites of 100 MW and above, so it sits below national installed capacity wherever distributed generation is large.
Who owns the power plants in Spain?
Iberdrola SA is named as owner or operator on the most — 59 of 653 (9%). Next are Endesa SA (35), Naturgy Energy Group SA (21) and Capital Energy (20).
How old are Spain's power plants?
The median commissioning year is 2007, across the 172 in service with a known start date. The oldest still listed is Ricobayo I hydroelectric plant (1934); 66 came online in the past ten years.
What new power plants are being built in Spain?
445 projects are under construction or proposed. The largest are HyDeal España solar farm (9.5 GW), Zaragoza and Teruel solar farm (2.6 GW) and Andalusian Green Hydrogen Valley wind farm (1.8 GW).

Other asset classes in Spain

Pipeline 51Cement Plant 41Grid Storage 35LNG Terminal 17Iron & Steel Plant 17Refinery 7Interconnector 7Chemical Plant 6Export Terminal 2Data Centre 1Oil & Gas Field 1Iron Ore Mine 1

Power Plants in other countries

China 11,537United States 3,831India 1,675Brazil 879Australia 615Philippines 489Russia 461Canada 452Vietnam 392Japan 387Germany 335Mexico 311