Today any thorium reactor exist in USA.
Unites States is not a producer of thorium now.
United States has thorium reserves of approx. 160 000 t.
No new nuclear plants have been built in the US in the past 20 years. The Watts Bar plant was licenced in 1996, but had been built much earlier. The last plant actually built was the River Bend plant in Louisiana, which was licenced in 1986.
Uranium deposits are much larger in the US compared to India, and all power operation in the US is currently based on enriched uranium with a straight-through cycle, the fuel is enriched, loaded, unloaded and stored with no further use. Large deposits of uranium are also found in Australia and Canada. In India the reserves of indigenous uranium are not great, but there are considerable reserves of thorium. This can be used for power production but the process is much more complicated and involves some chemical handling of the spent fuel which is not carried out in the US at present, because there is no need. India is not a signatory to the NPT and threfore wants to have its own indigenous supply of fuel, and this has prompted intereest in the thorium cycle. With the new US/India deal this emphasis could change. The following description of India's involvement with thorium is taken from 'www.world-nuclear.com'.In India, both Kakrapar-1 and -2 units are loaded with 500 kg of thorium fuel in order to improve their operation when newly-started. Kakrapar-1 was the first reactor in the world to use thorium, rather than depleted uranium, to achieve power flattening across the reactor core. In 1995, Kakrapar-1 achieved about 300 days of full power operation and Kakrapar-2 about 100 days utilising thorium fuel. The use of thorium-based fuel was planned in Kaiga-1 and -2 and Rajasthan-3 and -4 (Rawatbhata) reactors. With about six times more thorium than uranium, India has made utilisation of thorium for large-scale energy production a major goal in its nuclear power program, utilising a three-stage concept: * Pressurised Heavy Water Reactors (PHWRs, elsewhere known as CANDUs) fuelled by natural uranium, plus light water reactors, produce plutonium. * Fast Breeder Reactors (FBRs) use this plutonium-based fuel to breed U-233 from thorium. The blanket around the core will have uranium as well as thorium, so that further plutonium (ideally high-fissile Pu) is produced as well as the U-233. Then * Advanced Heavy Water Reactors burn the U-233 and this plutonium with thorium, getting about 75% of their power from the thorium. The used fuel will then be reprocessed to recover fissile materials for recycling. This Indian program has moved from aiming to be sustained simply with thorium to one "driven" with the addition of further fissile uranium and plutonium, to give greater efficiency.
Uranium had three advantages over other nuclear fuel, and several disadvantage. The potential other fuel was thorium. A comparison of the two systems includes:Uranium reactors are simpler than thorium reactorsThe byproducts of the uranium reaction (plutonium) can be used to make nuclear weapons.Uranium is rare and rapidly becomes a limited resource while thorium is common and virtually unlimited. The US had access to uranium through its own reserves and Canada.Thorium reactors "fail safe" if there is a problem, the nuclear reaction stops and the reactor becomes cold and inert. Uranium creates ongoing problems when they have an uncontrolled failure
Ah, thorium, what a peaceful element. How about a slogan like "Thorium, a gentle giant in the world of atoms" to remind us of its quiet strength and potential for good? Just like painting a happy little tree, let's embrace thorium with positivity and creativity.
All power producing reactors are either PWR or BWR types
Total of 104 reactors, most sites have two reactors
Nuclear reactors in the US are located in various states across the country. Some states with a high concentration of nuclear reactors include Illinois, Pennsylvania, and South Carolina. These reactors are typically situated near bodies of water for cooling purposes.
The US with 100 (I am uncertain if this is all reactors or just power reactors though, there are several small reactors operated to make medical isotopes, etc. or for research purposes of various kinds).
The US, Australia, Turkey, India, Venezuela, and Brazil.
Mexico has two BWR reactors designed and built by GE in the 70's, but these are in Veracruz which is a long way from Baja California. You can check reactors in US California on the NRC website, www.nrc.gov.No reactors like the Russian designed RBMK reactor at Chernobyl exist anywhere outside the former Soviet block countries