Michel Gay: L'uranium 235 (U235) est le seul élément fissile naturel restant sur Terre après l'explosion de la supernova qui a donné naissance au système solaire. Sans cette unique "allumette miraculeuse" l'homme n'aurait pas pu exploiter l'énergie nucléaire. Les deux seuls éléments naturels fertiles (et non fissiles) restant sur terre pour produire de l'énergie nucléaire sont l'U238 et le Th232. Ils sont disponibles en grande quantité et, grâce à "l'allumette" initiale (l'U235), ils pourront probablement alimenter l'humanité en chaleur et en électricité pendant des millénaires grâce aux générations de réacteurs à venir.
Van Snyder, Jet Propulsion Laboratory, JPL, Mathematician: Popular discussions about nuclear power eventually get around to at least one of five objections: It's not safe; no one knows what to do about waste; it's too expensive; it leads to nuclear weapons proliferation; or there isn't enough uranium. All of these objections are baseless. It is clearly obvious that nuclear power in the form of safe fast-neutron breeder reactors with on-site electrorefining must be a necessary (and economical) part of the American energy economy. Should the United States develop the technology, or buy it from France, Russia, China and India?
John Kotek, Vice President of the Nuclear Energy Institute,, Warren Miller, affiliated with Texas A&M and Stanford University, Peter Lyons led the DOE Office of Nuclear Energy from 2010-2015: First, we must ensure significant domestic nuclear energy production. Second, our private nuclear energy sector must compete and win in the international marketplace. The export of a broad range of civil nuclear technologies ensures U.S. influence to protect against misuse. Third, we must be an early, and active, partner to the many countries with no previous nuclear experience that want nuclear energy. It is critical that these countries select proven technologies that are appropriately regulated and operated. And finally, the U.S. must continue to lead in nuclear energy innovation.
John Shanahan, Dr. Ing., Civil Engineer: With financial and management situations of Toshiba, Westinghouse, Areva, and GE in the nuclear power business, the world's capability to build new nuclear power plants has obviously been set back. China, Russia and South Korea are now the leading sources of new nuclear power plants. How France and the United States might make a come back is not known at this time. This is a simple estimate of how long it might take to have nuclear become 50% of the world's electric generating capacity. The conclusion is that it will probably take several hundred years to get to 50% nuclear electric generating capacity. This has significant implications for energy planning.