Research into the peaceful uses of nuclear materials in the US began shortly after the end of the Second World War under the auspices of the Atomic Energy Commission, created by the United States Atomic Energy Act of 1946. Medical scientists were interested in the effect of radiation upon the fast-growing cells of cancer, and materials were given to them, while the military services led research into other peaceful uses.
In particular, the US Navy took the lead, seeing the opportunity to have ships that could steam around the world at high speeds without refueling being necessary for several decades, and the possibility of turning submarines into true full-time underwater vehicles. So, the Navy sent their "man in Engineering", then Captain Hyman Rickover, well known for his great technical talents in electrical engineering, power on board, and propulsion systems in addition to his skill in project management, to the AEC to start the Naval Reactors project. Rickover's work with the AEC led to the development of the Pressurized Water Reactor (PWR), the first naval model of which was installed in the submarine USS Nautilus. This made the boat capable of operating under water full-time - demonstrating this principle by reaching the North Pole and surfacing through the Polar ice cap.
From the successful naval reactor program, plans were quickly developed for the use of reactor steam to drive turbines turning generators. On May 26, 1958 the first commercial nuclear power plant in the United States, Shippingport nuclear power plant, was opened by President Dwight D. Eisenhower as part of his Atoms for Peace program. As nuclear power continued to grow throughout the 1960s, the Atomic Energy Commission anticipated that more than 1,000 reactors would be operating in the United States by 2000. As the industry continued to expand, the Atomic Energy Commission's development and regulatory functions were separated in 1974; the Department of Energy absorbed research and development, while the regulatory branch was spun off and turned into an independent commission known as the U.S. Nuclear Regulatory Commission (USNRC or simply NRC).
Argonne National Laboratory was assigned by the United States Atomic Energy Commission the lead role in developing commercial nuclear energy beginning in the 1940s. Between then and the turn of the 20th to 21st century, Argonne designed, built, and operated fourteen reactors at its site southwest of Chicago, and another fourteen reactors at the National Reactors Testing Station in Idaho. These reactors included initial experiments and test reactors that were the progenitors of today’s pressurized water reactors (including naval reactors), boiling water reactors, heavy water reactors, graphite-moderated reactors, and liquid-metal cooled fast reactors, one of which was the first reactor in the world to generate electricity. Argonne and a number of other AEC contractors built a total of 52 reactors at the National Reactor Testing Station. Two were never operated; with the exception of the Neutron Radiography Facility, all of the other reactors were shut down by 2000.
In the early afternoon of December 20, 1951, Argonne director Walter Zinn and fifteen other Argonne staff members witnessed a row of four light bulbs light up in a nondescript brick building in the eastern Idaho desert. Electricity from a generator connected to Experimental Breeder Reactor I (EBR-I) flowed through them. This was the first time that a usable amount of electrical power had ever been generated from nuclear fission. Only days afterward, the reactor produced all the electricity needed for the entire EBR complex. One ton of natural uranium can produce more than 40 million kilowatt-hours of electricity — this is equivalent to burning 16,000 tons of coal or 80,000 barrels of oil. More central to EBR-I’s purpose than just generating electricity, however, was its role in proving that a reactor could create more nuclear fuel as a byproduct than it consumed during operation. In 1953, tests verified that this was the case.
There has been considerable anti-nuclear opposition to the use of nuclear power in the U.S. The first U.S. reactor to face public opposition was Fermi 1 in 1957. It was built approximately 30 miles from Detroit and there was opposition from the United Auto Workers Union. Pacific Gas & Electric planned to build the first commercially viable nuclear power plant in the USA at Bodega Bay, north of San Francisco. The proposal was controversial and conflict with local citizens began in 1958. The conflict ended in 1964, with the forced abandonment of plans for the power plant. Historian Thomas Wellock traces the birth of the anti-nuclear movement to the controversy over Bodega Bay. Attempts to build a nuclear power plant in Malibu were similar to those at Bodega Bay and were also abandoned.
Nuclear accidents continued into the 1960s with a small test reactor exploding at the Stationary Low-Power Reactor Number One in Idaho Falls in January 1961 and a partial meltdown at the Enrico Fermi Nuclear Generating Station in Michigan in 1966. In his 1963 book Change, Hope and the Bomb, David Lilienthal criticized nuclear developments, particularly the nuclear industry's failure to address the nuclear waste question. J. Samuel Walker, in his book Three Mile Island: A Nuclear Crisis in Historical Perspective, explains that the growth of the nuclear industry in the U.S. occurred in the 1970s as the environmental movement was being formed. Environmentalists saw the advantages of nuclear power in reducing air pollution, but were critical of nuclear technology on other grounds. They were concerned about nuclear accidents, nuclear proliferation, high cost of nuclear power plants, nuclear terrorism and radioactive waste disposal.
By the end of the 1970s it became clear that nuclear power would not grow nearly as dramatically as once believed. This was particularly galvanized by the Three Mile Island accident in 1979. Eventually, more than 120 reactor orders were ultimately cancelled and the construction of new reactors ground to a halt. Al Gore has commented on the historical record and reliability of nuclear power in the United States:
Of the 253 nuclear power reactors originally ordered in the United States from 1953 to 2008, 48 percent were canceled, 11 percent were prematurely shut down, 14 percent experienced at least a one-year-or-more outage, and 27 percent are operating without having a year-plus outage. Thus, only about one fourth of those ordered, or about half of those completed, are still operating and have proved relatively reliable.
Amory Lovins has also commented on the historical record of nuclear power in the United States:
Of all 132 U.S. nuclear plants built (52% of the 253 originally ordered), 21% were permanently and prematurely closed due to reliability or cost problems, while another 27% have completely failed for a year or more at least once. The surviving U.S. nuclear plants produce ~90% of their full-time full-load potential, but even they are not fully dependable. Even reliably operating nuclear plants must shut down, on average, for 39 days every 17 months for refueling and maintenance, and unexpected failures do occur too.
A cover story in the February 11, 1985, issue of Forbes magazine commented on the overall management of the nuclear power program in the United States:
The failure of the U.S. nuclear power program ranks as the largest managerial disaster in business history, a disaster on a monumental scale … only the blind, or the biased, can now think that the money has been well spent. It is a defeat for the U.S. consumer and for the competitiveness of U.S. industry, for the utilities that undertook the program and for the private enterprise system that made it possible.
The NRC reported "(...the Three Mile Island accident...) was the most serious in U.S. commercial nuclear power plant operating history, even though it led to no deaths or injuries to plant workers or members of the nearby community." The World Nuclear Association reports that "...more than a dozen major, independent studies have assessed the radiation releases and possible effects on the people and the environment around TMI since the 1979 accident at TMI-2. The most recent was a 13-year study on 32,000 people. None has found any adverse health effects such as cancers which might be linked to the accident." Other nuclear power incidents within the US (defined as safety-related events in civil nuclear power facilities between INES Levels 1 and 3) include those at the Davis-Besse Nuclear Power Plant, which was the source of two of the top five highest conditional core damage frequency nuclear incidents in the United States since 1979, according to the U.S. Nuclear Regulatory Commission.
Despite many technical studies which asserted that the probability of a severe nuclear accident was low, numerous surveys showed that the public remained "very deeply distrustful and uneasy about nuclear power". Some commentators have suggested that the public's consistently negative ratings of nuclear power are reflective of the industry's unique connection with nuclear weapons:
reason why nuclear power is seen differently to other technologies lies in its parentage and birth. Nuclear energy was conceived in secrecy, born of war, and first revealed to the world in horror. No matter how much proponents try to separate the peaceful atom from the weapons atom, the connection is firmly embedded in the mind of the public.
Several US nuclear power plants closed well before their design lifetimes, due to successful campaigns by anti-nuclear activist groups. These include Rancho Seco in 1989 in California and Trojan in 1992 in Oregon. Humboldt Bay in California closed in 1976, 13 years after geologists discovered it was built on a fault (the Little Salmon Fault). Shoreham Nuclear Power Plant was completed but never operated commercially as an authorized Emergency Evacuation Plan could not be agreed on due the political climate after the Three Mile Island accident and Chernobyl disaster. The last permanent closure of a US nuclear power plant was in 1997.
US nuclear reactors were originally licensed to operate for 40-year periods. In the 1980s, the NRC determined that there were no technical issues that would preclude longer service. Over half of US nuclear reactors are over 30 years old and almost all are over twenty years old. As of 2011, more than 60 reactors have received 20-year extensions to their licensed lifetimes, with more than a dozen applications still under review. The average capacity factor for all US reactors has improved from below 60% in the 1970s and 1980s, to 92% in 2007, more than compensating for the retirement of older reactors.
Read more about this topic: Nuclear Energy In The United States
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