Resources & Stats

As of May 2013, 30 countries worldwide are operating 436 nuclear reactors for electricity generation and 70 new nuclear plants are under construction in 14 countries.

• World Nuclear Power Plants in Operation
• World Nuclear Generation and Capacity
• Nuclear Units Under Construction Worldwide

Nuclear power plants provided 12.3 percent of the world's electricity production in 2011. In total, 13 countries relied on nuclear energy to supply at least one-quarter of their total electricity. Countries generating the largest percentage of their electricity in 2012 from nuclear energy were:

Country	Percent
France	74.8
Slovakia	53.8
Belgium	51.0
Ukraine	46.2
Hungary	45.9
Sweden	38.1
Slovenia	36.0
Switzerland	35.9
Czech Rep.	35.3
Finland	32.6
Bulgaria	31.7
Korea, Rep.	30.4
Armenia	26.6

• Table on World Nuclear Power Reactors by Country
• Top 10 Nuclear Generating Countries
• The International Atomic Energy Agency’s Power Reactor Information System database
• Source Book: Soviet-Designed Nuclear Power Plants