Of the thirty-one countries which operate nuclear power plants, only France uses them as its primary source of electricity, although many countries have a significant nuclear power generation capacity. Some nations have plans to start a nuclear power program; these includes OECD members, such as Poland, and developing countries, such as Bangladesh and Vietnam. China and India are both pursuing an ambitious expansion of their nuclear power capacities.
References:[1][2]
The status of nuclear power globally: 
Nations based on nuclear output on national power output.
Country | Megawatt capacity | Nuclear share of electricity production |
|---|---|---|
 Argentina | 935 | 7.0% |
 Armenia | 376 | 45.0% |
 Belgium | 5,943 | 51.7% |
 Brazil | 1,901 | 3.0% |
 Bulgaria | 1,906 | 35.9% |
 Canada | 12,679 | 14.8% |
 China (PRC) | 10,234 | 1.9% |
 Czech Republic | 3,686 | 33.8% |
 Finland | 2,721 | 32.9% |
 France | 63,236 | 75.2% |
 Germany | 20,339 | 26.1% |
 Hungary | 1,880 | 43.0% |
 India | 4,780 | 2.9% |
 Japan | 47,348 | 28.9% |
 Korea, South (ROK) | 18,716 | 31.1% |
 Mexico | 1,310 | 4.8% |
 Netherlands | 485 | 3.7% |
 Pakistan | 725 | 2.7% |
 Romania | 1,310 | 20.6% |
 Russia | 23,084 | 17.8% |
 Slovakia | 1,760 | 53.5% |
 Slovenia and  Croatia | 696 | 37.9% + 8.0% |
 South Africa | 1,800 | 4.8% |
 Spain | 7,448 | 17.5% |
 Sweden | 9,399 | 37.4% |
 Switzerland | 3,252 | 39.5% |
 Taiwan (ROC) | 4,927 | 20.7% |
 Ukraine | 13,168 | 48.6% |
 United Kingdom | 10,962 | 17.9% |
 United States | 101,229 | 20.2% |
| World | 378,910 | 14% |
Operating reactors, building new reactors
Operating reactors, planning new build
No reactors, building new reactors
No reactors, planning new build
Operating reactors, stable
Operating reactors, considering phase-out
Civil nuclear power is illegal
No reactors
