21. Another 64 nuclear power reactors are expected to be commissioned over the next six years. 22. Plans were floated as recently as 2002 to build the country's first nuclear power reactor . 23. That is how energy is extracted by breaking up uranium nuclei in nuclear power reactors . 24. Japan already operates 49 nuclear power reactors , which provide 34 percent of the nation's electricity. 25. This unique detector was made possible by Canada's commercialization of its CANDO nuclear power reactors . 26. For the 75 nuclear power reactors built from 1966 to 1977, cost overruns averaged 207 percent. 27. In return, the United States promised to build two modern nuclear power reactors in North Korea. 28. Days after the anti-nuclear rally, Cabinet decided to ban the building of new nuclear power reactors . 29. But Iran is determined to have the construction of the nuclear power reactor for peaceful purposes, 30. Nuclear power reactor accidents can result in a variety of radioisotopes being released into the environment.