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Power Plants in Iran

Iran has 169 power plants mapped on the OverWatts open energy atlas — the 25th-largest fleet of the 155 countries that hold any, and 0.6% of the world's mapped total. Of these, 124 operating and 44 under construction or proposed. Operating generation capacity totals 91.8 GW across 124 utility-scale plants of 100 MW and above. The largest is Iran-Hormoz nuclear power plant (5.0 GW).

The largest owner-operators are Iran Water and Power Resources Development Co (18), Thermal Power Plants Holding Co (16) and Saba Power and Energy Group (4) — Iran Water and Power Resources Development Co alone is named on 11% of them. Half of Iran's power plants in service predate 2010 (median commissioning year of the 116 with a known date), 39 came online in the past decade and the oldest still listed is Dez 1 hydroelectric plant, dating from 1963. 44 are in the pipeline, led by Iran-Hormoz nuclear power plant (5.0 GW), under construction. They account for 28% of every energy asset OverWatts maps in Iran.

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169
Power Plant in Iran
#25
of 155 countries
91.8 GW
Operating capacity
44
In construction / proposed

Operating generation capacity by fuel

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Largest power plants in Iran

Who owns Iran'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 2010 · oldest Dez 1 hydroelectric plant (1963) · newest Markazi solar farm (2025) · 116 of 169 carry a start date

Under construction & proposed

How Iran compares · power plants by country

Frequently asked

How many power plants are there in Iran?
OverWatts maps 169 power plants in Iran — 0.6% of the world's mapped total, the 25th-largest national fleet of the 155 countries with any.
What is the largest power plant in Iran?
Iran-Hormoz nuclear power plant, at 5.0 GW.
How much power-generation capacity do Iran's power plants have?
About 91.8 GW operating across 124 plants, with a further 29.0 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 Iran?
Iran Water and Power Resources Development Co is named as owner or operator on the most — 18 of 169 (11%). Next are Thermal Power Plants Holding Co (16), Saba Power and Energy Group (4) and Farab Co (3).
How old are Iran's power plants?
The median commissioning year is 2010, across the 116 in service with a known start date. The oldest still listed is Dez 1 hydroelectric plant (1963); 39 came online in the past ten years.
What new power plants are being built in Iran?
44 projects are under construction or proposed. The largest are Iran-Hormoz nuclear power plant (5.0 GW), Bushehr nuclear power plant (2.1 GW) and PGSEZ power station (1.5 GW).

Other asset classes in Iran

Oil & Gas Field 111Pipeline 86Cement Plant 84Iron & Steel Plant 56Chemical Plant 36Coal / Uranium Mine 18Iron Ore Mine 12LNG Terminal 9Refinery 6Interconnector 5Grid Storage 2Storage / Tank Farm 1

Power Plants in other countries

China 11,537United States 3,831India 1,675Brazil 879Spain 653Australia 615Philippines 489Russia 461Canada 452Vietnam 392Japan 387Germany 335