The 10 Largest Power Plants in the World (2026)

The 10 Largest Power Plants on Earth

One number explains modern energy: 22,500 megawatts. That is the nameplate capacity of China's Three Gorges Dam—roughly the same as 22 large nuclear reactors operating at once. It is the single largest power-generating facility ever built, and it is not particularly close.

Below is the definitive ranking of the world's largest operating power plants by nameplate capacity in 2026. Eight of the ten are hydroelectric dams. The other two are an enormous Chinese wind base and a Japanese nuclear complex that has not run at full power since 2011.

Why Hydroelectric Dams Dominate

The top of this list is overwhelmingly hydroelectric for one reason: geography is destiny. A single river can host a single, enormous turbine hall. A nuclear reactor caps out around 1.6 GW per unit. A wind farm requires hundreds of square kilometres to reach the same scale a dam achieves in one building.

The Three Gorges Dam alone uses 32 turbines, each rated at 700 MW. Itaipu uses 20 turbines at 700 MW. The pattern is the same everywhere: when you find a river with enough head and flow, you build the biggest concrete structure your government can afford and you do not stop until the canyon is full.

The Chinese Hydroelectric Cascade

Four of the world's top seven plants are on a single Chinese river system. The Jinsha and Yangtze cascade—Three Gorges, Baihetan, Xiluodu, and Wudongde—together produce about 62.5 gigawatts of capacity. That is more than the entire installed power generation of a country like Italy.

This concentration is deliberate. China's State Council declared the Jinsha River the country's "main hydroelectric base" in the 2000s, and the four mega-dams above—each commissioned between 2014 and 2021—are the result. Wudongde, the newest of the four, was completed in 2020.

The Outliers: One Nuclear Plant, One Wind Farm

Kashiwazaki-Kariwa is the only nuclear station in the top 10 and the largest in the world by capacity. Located on Japan's Sea of Japan coast, its seven reactors total 7,965 MW. The plant has been mostly idle since 2011, when Japan shut down most of its reactors after Fukushima. Restart approvals began trickling back in the mid-2020s.

The Gansu Wind Farm, sometimes called the Jiuquan Wind Power Base, is technically a cluster of wind farms in the Gobi Desert rather than a single facility. Its 7,965 MW is spread across thousands of turbines. China classifies it as one "base" for planning purposes, which is why it appears as a single entry in most global rankings.

What This Means for Energy Policy

Scale matters but utilization matters more. Nameplate capacity is the maximum a plant can produce. Capacity factor—the percentage of time it actually produces near that maximum—is the more honest measure. Nuclear plants run near 90%. Hydro varies 30-60% by season. Wind sits around 25-45%.

The next decade is about expansion, not new builds. No new mega-dam approaching Three Gorges scale is currently under construction. The frontier has shifted to offshore wind, where the UK's Dogger Bank Wind Farm (3.6 GW) is the largest project under construction—still less than a sixth of Three Gorges.

New reactors are coming back. The completion of Vogtle Units 3 and 4 in Georgia between 2023 and 2024 marked the first new US nuclear reactors in over 30 years. The UK's Hinkley Point C is the largest active nuclear construction project in Europe.

Explore the Full Dataset

StatsPanda's interactive Power Plant Map lets you filter all 200+ plants by fuel type, country, and capacity. Every plant in the table above has its own page with location, ownership history, and the news context that shapes it.