Resources & Stats

As of February 2013, 30 countries worldwide are operating 437 nuclear reactors for electricity generation and 71 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 2011 from nuclear energy were:

Country	Percent
France	77.7
Slovakia	54.0
Belgium	54.0
Ukraine	47.2
Hungary	43.3
Slovenia	41.7
Switzerland	40.9
Sweden	39.6
Korea Rep.	34.6
Armenia	33.2
Czech Rep.	33.0
Bulgaria	32.6
Finland	31.6

• 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