Nuclear Intelligence Wiki

PROTEUS, a zero-power critical assembly, was located at the Paul Scherrer Institut (PSI) in Villigen, Switzerland. It played a key role in reactor physics and criticality experiments for civilian nuclear research until its permanent shutdown in 2011. With a thermal power of just 0.001 MWth, it suppo

Located in Diliman, Quezon City, Philippines, the PRR-1 is a pool-type research reactor managed by the Philippine Nuclear Research Institute. It was used for training and neutron activation studies before being permanently shut down in 1988 due to safety and funding concerns. The reactor no longer o

The Paul Scherrer Institut (PSI) is Switzerland's largest research institute for natural and engineering sciences, located in Villigen, Aargau. It is funded by the Swiss Confederation and operates under the Swiss Federal Institute of Technology (ETH) domain, focusing on civilian research in areas su

The most widely deployed reactor type globally. Water is kept under high pressure (~155 bar) to prevent boiling in the primary circuit, then transfers heat via steam generators to a secondary loop that drives turbines. Light water serves as both coolant and moderator.

**Vendor/Designer:** [[vendors/last-energy]]

The R2-0 research reactor was located at Studsvik in Nyköping, Sweden, and was operated by Studsvik AB. As the last operating research reactor in Sweden, it was significant for materials testing and training until its permanent shutdown in 2005. This 0.05 MWth pool-type reactor contributed to civili

Under construction at the Centro Atómico Bariloche in Argentina, RA-10 is a 30 MWth pool reactor designed to replace RA-3 as the primary isotope producer. Managed by INVAP and CNEA, it will support medical isotope production, neutron scattering, and materials testing upon completion. This multi-purp

Located at the Centro Atómico Ezeiza in Argentina, RA-3 is a 10 MWth pool reactor and the country's primary facility for medical isotope production, notably Mo-99. Operated by INVAP and CNEA, it has been a key player in civilian nuclear research for many years. Its contributions are vital to Argenti

RATEN ICN (Institute for Nuclear Research), based in Pitesti, Romania, is a state-owned research entity under the Technologies for Nuclear Energy State Agency (RATEN), dedicated to advancing civilian nuclear technology and safety. It operates under the coordination of the Romanian Ministry of Energy

Soviet-era graphite-moderated, light-water-cooled channel reactor. No containment vessel. Positive void coefficient at low power created dangerous instability — root cause of the Chernobyl disaster. All remaining units are in Russia.

Located at the Institut Laue-Langevin (ILL) in Grenoble, France, the RHF is a heavy water research reactor renowned as the world's highest-flux neutron source for neutron scattering. Its significance lies in supporting around 2,000 researchers annually in fields like condensed matter physics and str

The Rhode Island Nuclear Science Center (RINSC) is a state-operated nuclear research facility located at the University of Rhode Island in Narragansett, Rhode Island, USA. Managed under the oversight of the Rhode Island Atomic Energy Commission, RINSC operates a 2 MWt pool-type research reactor, pri

Located in Narragansett, Rhode Island, USA, the Rhode Island Nuclear Science Center (RINSC) houses a pool-type research reactor for civilian applications. It supports neutron activation, irradiation services, and industrial research, contributing to scientific advancements. Operational since 1962, i

The Research Institute of Atomic Reactors (RIAR), based in Dimitrovgrad, Ulyanovsk Oblast, Russia, is a prominent nuclear research facility established in 1956. Operating under the state corporation Rosatom, RIAR specializes in the development and testing of nuclear reactor technologies and fuel cyc

The Research Institute of Atomic Reactors (RIAR), based in Dimitrovgrad, Ulyanovsk Oblast, Russia, is a premier nuclear research facility managed by Rosatom, the state-owned atomic energy corporation. Established in 1956, RIAR specializes in the development and testing of nuclear reactor technologie

Ringhals 1 is located at the Ringhals Nuclear Power Plant on Sweden's west coast, near Varberg. Originally shut down in 2020, its planned restart with a net capacity of 900 MWe reflects Sweden's renewed commitment to nuclear power for energy security and climate goals. Efforts are underway to bring

**Vendor/Designer:** [[vendors/rusatom]]

**Vendor/Designer:** [[vendors/rolls-royce]]

Rolls-Royce SMR Unit 1 is a planned small modular reactor (SMR) project in the UK, with a specific site yet to be finalized. This unit is notable for advancing SMR technology in the UK, offering a capacity of 470 MWe net to support flexible, low-carbon energy production. It remains in the planning s

Rolls-Royce SMR Unit 2 is another planned SMR project in the UK, with the site still undetermined. It plays a key role in the UK's exploration of modular nuclear technology, with a capacity of 470 MWe net. The project is in the planning phase, aligning with efforts to diversify nuclear energy option

Rolls-Royce SMR Unit 3 is a proposed SMR project in the UK, with no specific site confirmed yet. This unit is part of a broader initiative to deploy scalable nuclear solutions, contributing 470 MWe net to the energy mix. It is currently in the planning stage, pending further development and site sel

Rooppur Unit 1 is situated at the Rooppur Nuclear Power Plant in Ishwardi, Pabna District, Bangladesh, and is the nation's first nuclear power facility. This VVER-1200 reactor, with a net capacity of 1200 MWe, is crucial for meeting Bangladesh's growing energy demands and supporting sustainable deve

Rooppur Unit 2 is located alongside Unit 1 at the Rooppur Nuclear Power Plant in Ishwardi, Pabna District, Bangladesh, as part of the country's inaugural nuclear energy project. This VVER-1200 reactor, also with a 1200 MWe capacity, plays a vital role in enhancing energy security and reducing carbon

Russian state nuclear corporation. VVER-1200 Gen III+ flagship. Vertically integrated: mining, enrichment, reactor design, construction, fuel fabrication. World's largest nuclear export portfolio. Website: https://www.rosatom.ru/en

RP-10 is a 10 MWth pool-type research reactor located at the Centro Nuclear Huarangal in Lima, Peru, operated by IPEN. Designed by Argentina’s INVAP, it remains operational and is significant for isotope production, neutron activation, and training in the region. It supports Peru’s civilian nuclear

RSG-GAS, also known as G.A. Siwabessy, is an operational multi-purpose pool-type research reactor located in Serpong, Banten, Indonesia, managed by BATAN. It is significant as Indonesia’s primary research reactor, facilitating neutron scattering, isotope production, and training. It has been in oper

The RTP, a 1 MWth TRIGA Mark II reactor, is located at the Malaysian Nuclear Agency in Bangi, Selangor, Malaysia. It supports civilian research through neutron activation analysis, training, and radioisotope production. The reactor is currently operational, contributing to Malaysia's nuclear science

**Operating Reactors (database):** 7 tracked in platform

Situated at the Pelindaba Research Centre in North West Province, South Africa, SAFARI-1 is a 20 MWth tank-type research reactor. It is one of the world’s top producers of Mo-99, a critical medical isotope, and has been fueled with low-enriched uranium (LEU) since 2009. Operational since 1965, it pl

Sanao Unit 1 is a planned nuclear power reactor located in China, part of the country's expanding civilian nuclear energy infrastructure. It features the HPR1000 reactor design, reflecting China's focus on advanced, domestically developed nuclear technology for energy security. As it is still in the

Sanao Unit 2 is a planned nuclear power reactor in China, situated alongside Unit 1 as part of a broader effort to increase clean energy capacity. This unit also utilizes the HPR1000 design, showcasing China's commitment to standardized, modern nuclear power solutions. It remains in the planning pha

Sanmen Unit 3 is situated at the Sanmen Nuclear Power Plant in Zhejiang Province, China. This unit is notable for adopting the AP1000 design, with a capacity of 1157 MWe net, supporting China's nuclear technology diversification. It is currently under construction, with completion anticipated to bol

SCK CEN, the Belgian Nuclear Research Centre, is a public institution based in Mol, Belgium, established in 1952 to advance civilian nuclear research and technology. Operating as a foundation of public utility under the supervision of the Belgian federal government, it plays a critical role in nucle

**Vendor/Designer:** [[vendors/leadcold]]

**Vendor/Designer:** [[vendors/blykalla]]

Shin Hanul Unit 3 is a nuclear power reactor under construction in South Korea, located at the Shin Hanul site, contributing to the country's robust civilian nuclear energy program. Utilizing the APR1400 design, it represents South Korea's advanced reactor technology for reliable electricity generat

Shin Hanul Unit 4, under construction in South Korea, is part of the Shin Hanul nuclear power complex, supporting the nation's clean energy goals. It features the APR1400 reactor design, a cornerstone of South Korea's modern nuclear fleet for civilian power. Construction continues, and it has not ye

Shin Hanul Unit 5 is planned for the Shin Hanul Nuclear Power Plant site in Uljin, South Korea. This APR1400 reactor, with a net capacity of 1400 MWe, represents part of South Korea's strategy to expand clean energy production. As a planned unit, it has not yet entered construction or operation.

Shin Hanul Unit 6 is also planned for the Shin Hanul Nuclear Power Plant site in Uljin, South Korea. Like Unit 5, it is an APR1400 reactor with a net capacity of 1400 MWe, aimed at supporting South Korea's energy security and carbon reduction goals. It remains in the planning stage with no construct

Shin Kori Unit 6 is an operational nuclear power reactor located at the Shin Kori site in South Korea, playing a key role in the country's civilian energy supply. Built with the APR1400 design, it exemplifies South Korea's commitment to safe and efficient nuclear power generation. It is currently in

Sizewell C Unit 1 is planned for the Sizewell site in Suffolk, England. It represents an important step in the UK's commitment to expanding nuclear power capacity, with a projected output of 1630 MWe net. The project is still in the planning phase, awaiting final approvals and construction start.

Sizewell C Unit 2 is also planned for the Sizewell site in Suffolk, England. This unit will contribute to the UK's low-carbon energy future with a capacity of 1630 MWe net. It remains in the planning stage alongside Unit 1, pending further development milestones.

Located in Dimitrovgrad, Russia, at the Research Institute of Atomic Reactors (RIAR), SM-3 is a 100 MWth tank-in-pool research reactor with one of the world’s highest neutron fluxes. It is a primary global source for specialized isotopes like Cf-252 and Am-243, supporting materials testing and isoto

**Vendor/Designer:** [[vendors/kaeri]]

Smolensk II-1 is planned for the Smolensk Nuclear Power Plant site in western Russia, near Desnogorsk. As a VVER-TOI reactor with a net capacity of 1255 MWe, it is part of Russia's strategy to enhance its civilian nuclear power generation capacity. Currently in the planning stage, no construction or

Smolensk II-2 is planned for the Smolensk Nuclear Power Plant site in western Russia, near Desnogorsk. This VVER-TOI reactor, with a net capacity of 1255 MWe, supports Russia's long-term goals for expanding clean energy production through nuclear power. It remains in the planning phase with no const

Factory-fabricated reactors typically under 300 MWe designed for modular deployment. Various designs span PWR, BWR, molten salt, high-temperature gas, and fast neutron variants. Most are in licensing or early construction phases as of 2025.

**Vendor/Designer:** [[vendors/holtec]]