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Power Plants in United States

The United States has 3,831 power plants mapped on the OverWatts open energy atlas — the 2nd-largest fleet of the 155 countries that hold any, and 13% of the world's mapped total. Of these, 2,392 operating and 1,032 under construction or proposed. Operating generation capacity totals 1168 GW across 2,392 utility-scale plants of 100 MW and above. The largest is Fermi America Project Matador power station (6.0 GW).

The largest owner-operators are NextEra Energy Inc (174), Invenergy LLC (72) and EDF Renewables (69) — NextEra Energy Inc alone is named on 5% of them. Half of United States's power plants in service predate 2009 (median commissioning year of the 2,392 with a known date), 889 came online in the past decade and the oldest still listed is Holtwood hydroelectric plant, dating from 1910. 1,032 are in the pipeline, led by Fermi America Project Matador power station (6.0 GW), under construction. They account for 49% of every energy asset OverWatts maps in United States.

See them on the map →Power Plants worldwide →
3,831
Power Plant in United States
#2
of 155 countries
1168 GW
Operating capacity
1,032
In construction / proposed

Operating generation capacity by fuel

On the interactive map

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Largest power plants in United States

Who owns United States'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 2009 · oldest Holtwood hydroelectric plant (1910) · newest Muskegon Solar (2026) · 2,392 of 3,831 carry a start date

Under construction & proposed

How United States compares · power plants by country

Frequently asked

How many power plants are there in United States?
OverWatts maps 3,831 power plants in United States — 13% of the world's mapped total, the 2nd-largest national fleet of the 155 countries with any.
What is the largest power plant in United States?
Fermi America Project Matador power station, at 6.0 GW.
How much power-generation capacity do United States's power plants have?
About 1168 GW operating across 2,392 plants, with a further 757 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 United States?
NextEra Energy Inc is named as owner or operator on the most — 174 of 3,831 (5%). Next are Invenergy LLC (72), EDF Renewables (69) and Tennessee Valley Authority (54).
How old are United States's power plants?
The median commissioning year is 2009, across the 2,392 in service with a known start date. The oldest still listed is Holtwood hydroelectric plant (1910); 889 came online in the past ten years.
What new power plants are being built in United States?
1,032 projects are under construction or proposed. The largest are Fermi America Project Matador power station (6.0 GW), Chevron AI Data Center Project (5.0 GW) and GW Ranch Energy Center (5.0 GW).

Other asset classes in United States

Oil & Gas Field 1,894Pipeline 620Coal / Uranium Mine 599LNG Terminal 176Interconnector 159Grid Storage 101Cement Plant 100Iron & Steel Plant 90Export Terminal 74Chemical Plant 64Refinery 32Data Centre 25

Power Plants in other countries

China 11,537India 1,675Brazil 879Spain 653Australia 615Philippines 489Russia 461Canada 452Vietnam 392Japan 387Germany 335Mexico 311