As of 2008, 440 reactors were operational with 44 more under construction.
| Country |
Number of Units Under construction |
Number of Reactors |
| Argentina |
2 |
1 |
| Armenia |
1 |
|
| Belgium |
7 |
|
| Brazil |
2 |
|
| Bulgaria |
2 |
2 |
| Canada |
18 |
|
| China |
11 |
11 |
| Czech Republic |
6 |
|
| Finland |
4 |
1 |
| France |
59 |
1 |
| Germany |
17 |
|
| Hungary |
4 |
|
| India |
17 |
6 |
| Iran |
|
1 |
| Japan |
55 |
2 |
| Korea, South |
20 |
5 |
| Lithuania |
1 |
|
| Mexico |
2 |
|
| Netherlands |
1 |
|
| Pakistan |
2 |
1 |
| Romania |
2 |
|
| Russia |
31 |
8 |
| South Africa |
2 |
|
| Slovakia |
6 |
|
| Slovenia |
1 |
|
| Spain |
8 |
|
| Sweden |
10 |
|
| Switzerland |
5 |
|
| Taiwan |
6 |
2 |
| Ukraine |
15 |
2 |
| United Kingdom |
19 |
|
| United States |
104 |
1 |
As of 2008, the United States had 104 reactors in operation, with one under construction. The plants generated 100,683 megawatts of electricity or 19.7 percent of domestic electricity in 2008.
