5 Largest Nuclear Power Plants in the World. Until 2022, Nuclear Power Plants (NPP) around the world account for 10% of the world’s electricity needs. This figure is equivalent to the electricity supply of 2,552 TeraWattHour during 2022.
The electricity supply is supported by at least 445 nuclear reactors from various countries. Currently, there are 50 reactors under construction which are expected to be able to supply up to 15 percent of the world’s total electricity demand.
1. Bruce Nuclear Generating Station
The Bruce nuclear power plant is Canada’s first nuclear power plant and the second largest nuclear power plant in the world. This nuclear power plant has a total capacity of 6,234 MW which is supported by eight boiler reactors. Each reactor has a generating capacity of 786 MW to 891 MW.
5 Largest Nuclear Power Plants in the World
2. Hanul Nuclear Power Plant
The Hanul nuclear power plant was previously known as the Ulchin nuclear power plant. Also owned by South Korea since 1988 operating supplying 5,928 MW of electricity. This nuclear power plant has six boiler reactors which in 2016 supplied 39,795 GigaWattHour of electricity.
3. Zaporizhzhia Nuclear Power Plant
The Zaporizhzhya nuclear power plant is located in Ukraine and has a net capacity of 5,700 MW. This nuclear power plant is operated by the National Nuclear Energy Generating Company which has carried out various renovations so that it can extend the life of the nuclear power plant by 10 years until 2027.
The largest nuclear power plant in the world is in Japan. The Kashiwazaki-Kariwa nuclear power plant has a total capacity of 7,965 MW. This figure is supported by seven boiler reactors, five of which have a capacity of 1,100 MW. While the remaining two have a capacity of up to 1,356 MW.
Unfortunately, this nuclear power plant has to experience blackouts because the Japanese authorities are building a marine dam to withstand the potential for earthquake and tsunami disasters to prevent a disaster like what happened at the 2011 Fukushima nuclear power plant.
5. Kori Nuclear Power Plant
South Korea has the third largest nuclear power plant in the world with a capacity of 6,040 MW. Operationally, the Kori nuclear power plant is the largest in supplying the world’s electricity needs when compared to the previous two nuclear power plants. This nuclear power plant only operates six boiler reactors out of a total of eight they have since 2016.
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