United States
US dominates the world in nuclear energy production with a capacity of 102,475 megawatts.
Add India.com as a Preferred Source
Advertisement
Top 6 countries with largest nuclear power energy capacity in the world
The United States is currently leading the list but falls to second position when planned projects are included. However, China is on track to overtake the US by increasing its nuclear capacity to 186 gigawatts.
By Joy Pillai | Updated: April 10, 2026 11:12 AM IST
China
China is going to become the most dominant nuclear power producer in the world. The country’s capacity could reach nearly 186 gigawatts, surpassing US. Currently US leads globally in nuclear power production.
Advertisement
France
The country is one of the historic leaders in nuclear energy. France generates 69 percent of its electricity from the technology.
Russia
It generates 28.6 of its electricity from nuclear power.
Advertisement
South Korea
The country generates 27.1 percent of its energy from the technology with the prospective of 5.6.
Canada
The country has the capacity of producing 14.6 percent of its energy from the technology.
Ukraine
The country generates 13.8 percent of its electricity from nuclear power.
Japan
Japan has the capacity of producing 13.3 percent of its electricity from the technology.
Spain
Spain’s nuclear power plants generate 7.2 percent of the country’s electricity.
India
India generates 8.2 percent of its electricity from the nuclear power energy with the perspective of 31.5 percent.