Hyperion Power Generation
Encyclopedia
Hyperion Power Generation, Inc. is a privately held corporation
formed to construct and sell several designs of relatively small (70 MW thermal, 25 MW electric) nuclear reactor
s, which they claim will be modular
, inexpensive
, inherently safe
, and proliferation-resistant
. According to news coverage, these reactors could be used for heat generation
, production of electricity
, and other purposes, including desalinization.
The company is currently attempting to license their technologies through the U.S.
Nuclear Regulatory Commission
.
reactor, urgent customer needs for a rapidly licenseable and deployable reactor are causing them to choose another LANL
design for initial commercialization. They are moving forward with a more conventional Generation IV
reactor design
: a uranium nitride
fueled, lead-bismuth
cooled reactor. Using a liquid-metal-cooled fast reactor should speed the time to commercialization over the more revolutionary uranium hydride, self-modulating design that had previously been publicly discussed.
fuel that is used at present in modern light water nuclear reactors. However, it has certain beneficial traits - higher thermal conductivity
- and thus less retained heat energy - that make it preferable over oxide fuels when used at temperature regimes that are greater than the 250 to 300 °C (482 to 572 F) temperatures found in light water reactors. By operating at higher temperatures, steam plants can operate at a higher thermal efficiency. The presentation by Hyperion at the ANS 2009 conference mentions the use of the Doppler inherent negative temperature coefficient of reactivity in this reactor as a means of control. Nuclear scientist Alexander Sesonske avers that nitride fuels have both received very little development (as of 1973) and seem to have a very favorable combination of physical properties - especially in fast reactors. Whether this carries over to lead-bismuth cooled reactors is a question not answered in the reviewed literature, though the Soviet Union
has worked with this type of reactor before in naval service; in particular, the Alfa class submarine
- well known in the West for its high speed operation - was driven by such a lead-bismuth reactor which is known to have worked very effectively.
The Hyperion module has sufficient fuel for 3650 full power days at 70 MWth, is capable of load following, and is meant to be built in pairs; one module can be at power, while another can be under installation or uninstallation at the same time, ensuring reliable supply of electricity.
s, also using lead-bismuth coolant, are located within the reactor and run an intermediate loop going to a third ex-reactor heat exchanger (the steam generator
), where heat is transferred to the working fluid
, heating it to approximately 480 °C (896 °F). Two schemes of power generation exist at this point: either using superheated steam
or supercritical carbon dioxide
to drive Rankine cycle
or Brayton cycle
turbine
s. In addition to the classical use of power generation, further uses for the heated working fluid can include desalinization, process heat, and district heating and cooling.
The thermal hydraulics
of the lead-bismuth reactor are dictated by the high heat capacity and unique properties of the lead-bismuth eutectic coolant. This coolant has several extremely beneficial properties for a reactor: it is opaque to gamma radiation, but transparent to neutron flux
; it melts easily at a low temperature, but does not boil until an extremely high temperature is reached; it does not greatly expand or contract when exposed to heat or cold; it has a high heat capacity
; it will naturally circulate through the reactor core without pumps being required - whether during normal operation or as a means of residual decay heat
removal; and it will solidify once decay heat from a used reactor has dropped to a low level.
s - rapid shutdown
rods, designed to promptly absorb a large quantity of reactivity from the reactor to bring it below the shutdown
margin, and fine-grained working control rods, also known as shims, which are used to compensate for the long-term decrease in reactivity (long-term decrease in Keff) that comes from the nuclear fuel
being depleted and fission products being formed. The shims, in particular, have 1.5 metres (4.9 ft) of travel distance which they slowly travel over the life of the reactor. There is a secondary shutdown system consisting of neutron-absorbing boron carbide
balls that can be launched into the core in the event the shutdown rods are not responsive and rapid shutdown is called for. Fourth, there is the prompt negative temperature coefficient
of reactivity, which prevents the reactor from remaining critical if it should enter into an unsafe temperature range. The reactor is designed so that once shut down, it does not require external agencies aside from natural conduction and convection to surrounding natural media to remove residual heat, qualifying it as highly safe.
The reactor weighs 20 tonnes (44,092.5 lb) fully fueled (including coolant
), and it can be transported by truck or by rail to its destination. Radiation protection during transport is integral, making it nearly impossible for any transport accident to threaten the release of radiation. As the coolant is composed of lead (a strong absorber of gamma radiation), the reactor is very safe for humans to be in close proximity to while the reactor is transported; further, if the reactor is allowed sufficient time to eliminate decay heat
prior to transport, the lead-bismuth coolant will be in solid phase, thus fixing the internals of the reactor in place, causing the reactor to behave as a single piece of metal if subjected to external shock.
(NRC), though the firm's deployment schedule - the target date for deployment will be by the end of 2013 - as well as indications from senior personnel within Hyperion indicates that perhaps the reactor will bypass the normal NRC process for commercial reactors - as it takes many years - and will instead be initially deployed by the U.S. Department of Energy or the U.S. Department of Defense, not subject to NRC regulation, or that Hyperion will seek a 10CFR50.21 Class 104 Research and Development reactor license from the NRC.
Hyperion expects to apply to the NRC for regulatory approval "within a year."
Possibilities for manufacture in nations other than the United States have also been mentioned as a way to overcome the NRC's lesser agility in responding to the commercial introduction of unique and innovative features of this reactor design. In particular, Hyperion plans to manufacture reactors in the United Kingdom
, which has demonstrated recent national leadership in the field of nuclear energy, while a yet to be announced nation in Asia is targeted for manufacture as well.
, the company announced an agreement with Savannah River Nuclear Solutions, operator of the Savannah River National Laboratory
in Aiken, South Carolina
, for the development of a demonstration site, intended for testing and licensing purposes, at Savannah River
.
, based on a design by Dr. Otis G. Peterson, formerly of Los Alamos National Laboratory
, (with United States
patent
application #11/804,450) for a unique modular nuclear reactor design that Peterson developed while working for LANL.
According to the U.S. Nuclear Regulatory Commission, Dr. Peterson has licensed the pending patent to Hyperion Power Generation, Inc.
In November 2008, the Nuclear Regulatory Commission
(NRC) indicated that investigation of the design is not expected to begin until February 2009 and that they expect "that it will take significant time to ensure safety requirements."
, Hyperion expected to sell 4,000 units of the "2008-design" version of its Hyperion Power Module, at an estimated US$25–30 million each, and expected to ship its first unit in June 2013, before the company moved on to a second-design in 2009.
In early 2009, the company had more than 100 orders for the "2008-design", with plans to build manufacturing facilities in the United States, the United Kingdom
, and Asia.
Corporation
A corporation is created under the laws of a state as a separate legal entity that has privileges and liabilities that are distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business. Early corporations were established by charter...
formed to construct and sell several designs of relatively small (70 MW thermal, 25 MW electric) nuclear reactor
Nuclear reactor
A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are used for generating electricity and for the propulsion of ships. Usually heat from nuclear fission is passed to a working fluid , which runs through turbines that power either ship's...
s, which they claim will be modular
Modular design
Modular design, or "modularity in design" is an approach that subdivides a system into smaller parts that can be independently created and then used in different systems to drive multiple functionalities...
, inexpensive
Economics of new nuclear power plants
The economics of new nuclear power plants is a controversial subject, since there are diverging views on this topic, and multi-billion dollar investments ride on the choice of an energy source...
, inherently safe
Inherent safety
Inherent safety is a concept particularly used in the chemical and process industries. An inherently safe process has a low level of danger even if things go wrong. It is used in contrast to safe systems where a high degree of hazard is controlled by protective systems...
, and proliferation-resistant
Nuclear proliferation
Nuclear proliferation is a term now used to describe the spread of nuclear weapons, fissile material, and weapons-applicable nuclear technology and information, to nations which are not recognized as "Nuclear Weapon States" by the Treaty on the Nonproliferation of Nuclear Weapons, also known as the...
. According to news coverage, these reactors could be used for heat generation
District heating
District heating is a system for distributing heat generated in a centralized location for residential and commercial heating requirements such as space heating and water heating...
, production of electricity
Electricity
Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...
, and other purposes, including desalinization.
The company is currently attempting to license their technologies through the U.S.
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
Nuclear Regulatory Commission
Nuclear Regulatory Commission
The Nuclear Regulatory Commission is an independent agency of the United States government that was established by the Energy Reorganization Act of 1974 from the United States Atomic Energy Commission, and was first opened January 19, 1975...
.
Revised 2009 design: uranium nitride fueled, lead-bismuth cooled reactor
Hyperion announced in November 2009 that, despite their continued intentions to pursue the self-moderated uranium hydrideUranium hydride
Uranium hydride, also called uranium trihydride is an inorganic compound, a hydride of uranium.-Properties:Uranium hydride is a highly toxic, brownish gray to brownish black pyrophoric powder or brittle solid. Its specific gravity at 20 °C is 10.95, much lower than that of uranium...
reactor, urgent customer needs for a rapidly licenseable and deployable reactor are causing them to choose another LANL
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...
design for initial commercialization. They are moving forward with a more conventional Generation IV
Generation IV reactor
Generation IV reactors are a set of theoretical nuclear reactor designs currently being researched. Most of these designs are generally not expected to be available for commercial construction before 2030...
reactor design
Lead cooled fast reactor
The lead-cooled fast reactor is a nuclear power Generation IV reactor that features a fast neutron spectrum, molten lead or lead-bismuth eutectic coolant. Options include a range of plant ratings, including a number of 50 to 150 MWe units featuring long-life, pre-manufactured cores...
: a uranium nitride
Uranium nitride
Uranium nitride refers to a family of several ceramic compounds: uranium mononitride , uranium sesquinitride , which exists in either an alpha or beta phase, and uranium dinitride ....
fueled, lead-bismuth
Lead-bismuth eutectic
Lead-Bismuth Eutectic or LBE is a eutectic alloy of lead and bismuth used as a coolant in some nuclear reactors, and is a proposed coolant for the lead-cooled fast reactor, part of the Generation IV reactor initiative....
cooled reactor. Using a liquid-metal-cooled fast reactor should speed the time to commercialization over the more revolutionary uranium hydride, self-modulating design that had previously been publicly discussed.
Fuel and Coolant Selection
According to Hyperion, the uranium nitride fuel incorporated in the design is generally similar in physical characteristics and neutronics to the standard ceramic uranium oxideUranium oxide
Uranium oxide is an oxide of the element uranium.The metal uranium forms several oxides:* Uranium dioxide or uranium oxide * Uranium trioxide or uranium oxide...
fuel that is used at present in modern light water nuclear reactors. However, it has certain beneficial traits - higher thermal conductivity
Thermal conductivity
In physics, thermal conductivity, k, is the property of a material's ability to conduct heat. It appears primarily in Fourier's Law for heat conduction....
- and thus less retained heat energy - that make it preferable over oxide fuels when used at temperature regimes that are greater than the 250 to 300 °C (482 to 572 F) temperatures found in light water reactors. By operating at higher temperatures, steam plants can operate at a higher thermal efficiency. The presentation by Hyperion at the ANS 2009 conference mentions the use of the Doppler inherent negative temperature coefficient of reactivity in this reactor as a means of control. Nuclear scientist Alexander Sesonske avers that nitride fuels have both received very little development (as of 1973) and seem to have a very favorable combination of physical properties - especially in fast reactors. Whether this carries over to lead-bismuth cooled reactors is a question not answered in the reviewed literature, though the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
has worked with this type of reactor before in naval service; in particular, the Alfa class submarine
Alfa class submarine
The Soviet Union/Russian Navy Project 705 was a class of hunter/killer nuclear powered submarines. The class is also known by the NATO reporting name of Alfa...
- well known in the West for its high speed operation - was driven by such a lead-bismuth reactor which is known to have worked very effectively.
The Hyperion module has sufficient fuel for 3650 full power days at 70 MWth, is capable of load following, and is meant to be built in pairs; one module can be at power, while another can be under installation or uninstallation at the same time, ensuring reliable supply of electricity.
Thermal Hydraulics, Energy Production and Extraction
Hyperion plans to use natural circulation of the lead-bismuth coolant through the reactor module as a means of primary cooling. Coolant temperatures within the primary loop should be approximately 500 °C (932 °F). Powered intermediate heat exchangerHeat exchanger
A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall, so that they never mix, or they may be in direct contact...
s, also using lead-bismuth coolant, are located within the reactor and run an intermediate loop going to a third ex-reactor heat exchanger (the steam generator
Steam generator (nuclear power)
Steam generators are heat exchangers used to convert water into steam from heat produced in a nuclear reactor core. They are used in pressurized water reactors between the primary and secondary coolant loops....
), where heat is transferred to the working fluid
Working fluid
A working fluid is a pressurized gas or liquid that actuates a machine. Examples include steam in a steam engine, air in a hot air engine and hydraulic fluid in a hydraulic motor or hydraulic cylinder...
, heating it to approximately 480 °C (896 °F). Two schemes of power generation exist at this point: either using superheated steam
Superheated steam
Superheated steam is steam at a temperature higher than water's boiling point. If saturated steam is heated at constant pressure, its temperature will also remain constant as the steam quality increases towards 100% Dry Saturated Steam. Continued heat input will then generate superheated steam...
or supercritical carbon dioxide
Supercritical carbon dioxide
Supercritical carbon dioxide is a fluid state of carbon dioxide where it is held at or above its critical temperature and critical pressure.Carbon dioxide usually behaves as a gas in air at STP or as a solid called dry ice when frozen...
to drive Rankine cycle
Rankine cycle
The Rankine cycle is a cycle that converts heat into work. The heat is supplied externally to a closed loop, which usually uses water. This cycle generates about 90% of all electric power used throughout the world, including virtually all solar thermal, biomass, coal and nuclear power plants. It is...
or Brayton cycle
Brayton cycle
The Brayton cycle is a thermodynamic cycle that describes the workings of the gas turbine engine, basis of the airbreathing jet engine and others. It is named after George Brayton , the American engineer who developed it, although it was originally proposed and patented by Englishman John Barber...
turbine
Turbine
A turbine is a rotary engine that extracts energy from a fluid flow and converts it into useful work.The simplest turbines have one moving part, a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades, or the blades react to the flow, so that they move and...
s. In addition to the classical use of power generation, further uses for the heated working fluid can include desalinization, process heat, and district heating and cooling.
The thermal hydraulics
Thermal hydraulics
Thermal hydraulics is the study of hydraulic flow in thermal systems. A common example is steam generation in power plants and the associated energy transfer to mechanical motion and the change of states of the water while undergoing this process.The common adjectives are "thermohydraulic",...
of the lead-bismuth reactor are dictated by the high heat capacity and unique properties of the lead-bismuth eutectic coolant. This coolant has several extremely beneficial properties for a reactor: it is opaque to gamma radiation, but transparent to neutron flux
Neutron flux
The neutron flux is a quantity used in reactor physics corresponding to the total length travelled by all neutrons per unit time and volume . The neutron fluence is defined as the neutron flux integrated over a certain time period....
; it melts easily at a low temperature, but does not boil until an extremely high temperature is reached; it does not greatly expand or contract when exposed to heat or cold; it has a high heat capacity
Heat capacity
Heat capacity , or thermal capacity, is the measurable physical quantity that characterizes the amount of heat required to change a substance's temperature by a given amount...
; it will naturally circulate through the reactor core without pumps being required - whether during normal operation or as a means of residual decay heat
Decay heat
Decay heat is the heat released as a result of radioactive decay. This is when the radiation interacts with materials: the energy of the alpha, beta or gamma radiation is converted into the thermal movement of atoms.-Natural occurrence:...
removal; and it will solidify once decay heat from a used reactor has dropped to a low level.
Safety, Control, And Transport
Four mechanisms of control are used in the reactor. There are two types of control rodControl rod
A control rod is a rod made of chemical elements capable of absorbing many neutrons without fissioning themselves. They are used in nuclear reactors to control the rate of fission of uranium and plutonium...
s - rapid shutdown
Scram
A scram or SCRAM is an emergency shutdown of a nuclear reactor – though the term has been extended to cover shutdowns of other complex operations, such as server farms and even large model railroads...
rods, designed to promptly absorb a large quantity of reactivity from the reactor to bring it below the shutdown
Shutdown (nuclear reactor)
In a nuclear reactor, shutdown refers to the state of the reactor when it is subcritical by at least a margin defined in the reactor's technical specifications...
margin, and fine-grained working control rods, also known as shims, which are used to compensate for the long-term decrease in reactivity (long-term decrease in Keff) that comes from the nuclear fuel
Nuclear fuel
Nuclear fuel is a material that can be 'consumed' by fission or fusion to derive nuclear energy. Nuclear fuels are the most dense sources of energy available...
being depleted and fission products being formed. The shims, in particular, have 1.5 metres (4.9 ft) of travel distance which they slowly travel over the life of the reactor. There is a secondary shutdown system consisting of neutron-absorbing boron carbide
Boron carbide
Boron carbide is an extremely hard boron–carbon ceramic material used in tank armor, bulletproof vests, and numerous industrial applications...
balls that can be launched into the core in the event the shutdown rods are not responsive and rapid shutdown is called for. Fourth, there is the prompt negative temperature coefficient
Temperature coefficient
The temperature coefficient is the relative change of a physical property when the temperature is changed by 1 K.In the following formula, let R be the physical property to be measured and T be the temperature at which the property is measured. T0 is the reference temperature, and ΔT is the...
of reactivity, which prevents the reactor from remaining critical if it should enter into an unsafe temperature range. The reactor is designed so that once shut down, it does not require external agencies aside from natural conduction and convection to surrounding natural media to remove residual heat, qualifying it as highly safe.
The reactor weighs 20 tonnes (44,092.5 lb) fully fueled (including coolant
Coolant
A coolant is a fluid which flows through a device to prevent its overheating, transferring the heat produced by the device to other devices that use or dissipate it. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, and chemically inert, neither causing nor...
), and it can be transported by truck or by rail to its destination. Radiation protection during transport is integral, making it nearly impossible for any transport accident to threaten the release of radiation. As the coolant is composed of lead (a strong absorber of gamma radiation), the reactor is very safe for humans to be in close proximity to while the reactor is transported; further, if the reactor is allowed sufficient time to eliminate decay heat
Decay heat
Decay heat is the heat released as a result of radioactive decay. This is when the radiation interacts with materials: the energy of the alpha, beta or gamma radiation is converted into the thermal movement of atoms.-Natural occurrence:...
prior to transport, the lead-bismuth coolant will be in solid phase, thus fixing the internals of the reactor in place, causing the reactor to behave as a single piece of metal if subjected to external shock.
Licensing Strategy
Hyperion intends to pursue the licensing of the uranium nitride, lead-bismuth small reactor with the U.S. Nuclear Regulatory CommissionNuclear Regulatory Commission
The Nuclear Regulatory Commission is an independent agency of the United States government that was established by the Energy Reorganization Act of 1974 from the United States Atomic Energy Commission, and was first opened January 19, 1975...
(NRC), though the firm's deployment schedule - the target date for deployment will be by the end of 2013 - as well as indications from senior personnel within Hyperion indicates that perhaps the reactor will bypass the normal NRC process for commercial reactors - as it takes many years - and will instead be initially deployed by the U.S. Department of Energy or the U.S. Department of Defense, not subject to NRC regulation, or that Hyperion will seek a 10CFR50.21 Class 104 Research and Development reactor license from the NRC.
Hyperion expects to apply to the NRC for regulatory approval "within a year."
Possibilities for manufacture in nations other than the United States have also been mentioned as a way to overcome the NRC's lesser agility in responding to the commercial introduction of unique and innovative features of this reactor design. In particular, Hyperion plans to manufacture reactors in the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
, which has demonstrated recent national leadership in the field of nuclear energy, while a yet to be announced nation in Asia is targeted for manufacture as well.
Current Developments
, no uranium nitride fuel for the design has been tested or manufactured for the project, but Hyperion claims that fuel burns will begin before year-end 2009., the company announced an agreement with Savannah River Nuclear Solutions, operator of the Savannah River National Laboratory
Savannah River National Laboratory
The Savannah River National Laboratory is the applied research and development laboratory at the U.S. Department of Energy’s Savannah River Site near Aiken, South Carolina. SRNL was founded in 1951 as the Savannah River Laboratory. It was certified as a national laboratory on May 7, 2004...
in Aiken, South Carolina
Aiken, South Carolina
Aiken is a city in and the county seat of Aiken County, South Carolina, United States. With Augusta, Georgia, it is one of the two largest cities of the Central Savannah River Area. It is part of the Augusta-Richmond County Metropolitan Statistical Area. Aiken is home to the University of South...
, for the development of a demonstration site, intended for testing and licensing purposes, at Savannah River
Savannah River Site
The Savannah River Site is a nuclear reservation in the United States in the state of South Carolina, located on land in Aiken, Allendale and Barnwell Counties adjacent to the Savannah River, southeast of Augusta, Georgia. The site was built during the 1950s to refine nuclear materials for...
.
Previous 2008 design: self-regulating, uranium hydride reactor
In 2008 and 2009, Hyperion planned to initially commercialize a small, modular self-regulating, uranium hydride reactorHydrogen Moderated Self-regulating Nuclear Power Module
The Hydrogen Moderated Self-Regulating Nuclear Power Module , also referred to as the Compact Self-regulating Transportable Reactor , is a new type of nuclear power reactor using hydride as a neutron moderator. The design is inherently safe, as the fuel and the neutron moderator are uranium hydride...
, based on a design by Dr. Otis G. Peterson, formerly of Los Alamos National Laboratory
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...
, (with United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
patent
Patent
A patent is a form of intellectual property. It consists of a set of exclusive rights granted by a sovereign state to an inventor or their assignee for a limited period of time in exchange for the public disclosure of an invention....
application #11/804,450) for a unique modular nuclear reactor design that Peterson developed while working for LANL.
According to the U.S. Nuclear Regulatory Commission, Dr. Peterson has licensed the pending patent to Hyperion Power Generation, Inc.
In November 2008, the Nuclear Regulatory Commission
Nuclear Regulatory Commission
The Nuclear Regulatory Commission is an independent agency of the United States government that was established by the Energy Reorganization Act of 1974 from the United States Atomic Energy Commission, and was first opened January 19, 1975...
(NRC) indicated that investigation of the design is not expected to begin until February 2009 and that they expect "that it will take significant time to ensure safety requirements."
, Hyperion expected to sell 4,000 units of the "2008-design" version of its Hyperion Power Module, at an estimated US$25–30 million each, and expected to ship its first unit in June 2013, before the company moved on to a second-design in 2009.
In early 2009, the company had more than 100 orders for the "2008-design", with plans to build manufacturing facilities in the United States, the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
, and Asia.
Current Competing Designs
See List of small nuclear reactor designs- NuScaleNuScaleNuScale Power LLC is a company formed to construct and sell dedicated design of relatively small nuclear reactors, which they claim will be modular, inexpensive, inherently safe, and proliferation-resistant.-History:The basic design is based on the MASLWR developed at Oregon...
- Toshiba 4SToshiba 4S- General description :The plant design is offered by a partnership that includes Toshiba and the Central Research Institute of Electric Power Industry of Japan.The technical specifications of the 4S reactor are unique in the nuclear industry...
- mPower by Babcock & Wilcox CompanyB&W mPowerThe B&W mPower is a proposed 125 MW modular, advanced light water nuclear reactor. The reactor is to be built by Babcock & Wilcox Co. in North America, and shipped by rail to generating sites. The reactor's power output is approximately 125 MWe, or approximately 10% of a typical reactor...
- TerraPowerTerraPowerTerraPower is a nuclear reactor design spin-off company of Intellectual Ventures that is headquartered in Bellevue, Washington in the United States. TerraPower is investigating a class of nuclear fast reactors called the traveling wave reactor...