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| OPR-1000 | |
|---|---|
| Name | OPR-1000 |
| Country | South Korea |
| Designer | Korea Electric Power Corporation |
| Type | Pressurized Water Reactor |
| Status | Operational / Decommissioned (varies by unit) |
| First criticality | 1995 |
| Thermal output | ~2815 MWt |
| Electrical output | ~1000 MWe |
OPR-1000 is a South Korean pressurized water reactor developed in the late 20th century by national industry and research institutions. It was created through technology transfer, joint projects, and domestic engineering to support Korea Electric Power Corporation, Korea Hydro & Nuclear Power, and allied construction firms. The design played a role in South Korea's industrialization strategy, interfacing with international suppliers, regulatory bodies, and export partners.
The program emerged from collaborations with Combustion Engineering, Westinghouse Electric Company, Korea Electric Power Corporation, and national research institutes such as Korea Atomic Energy Research Institute and Korea Institute of Nuclear Safety. Political and economic contexts including relations with the United States, engagement with the International Atomic Energy Agency, and South Korea's energy policies shaped deployment decisions at sites like Kori Nuclear Power Plant, Hanul Nuclear Power Plant, and Yeonggwang Nuclear Power Plant. Industrial partners included Doosan Heavy Industries & Construction, Hyundai Heavy Industries, and Samsung Heavy Industries, while oversight involved agencies such as the Nuclear Safety and Security Commission and ministries tied to infrastructure and trade.
The reactor is a two-loop pressurized water reactor with design lineage traceable to designs by Combustion Engineering and features influenced by Westinghouse practices and international standards from the International Atomic Energy Agency. Core parameters yield roughly 2815 MWt thermal and about 1000 MWe electrical output; plant systems interface with turbines by manufacturers such as General Electric and condensers supplied by heavy industry conglomerates including Doosan. Reactor internals, fuel assemblies, and control rod mechanisms were developed with supply chains involving Areva-era vendors, domestic fabrication by Korea Nuclear Fuel, and quality assurance modeled on standards from American Society of Mechanical Engineers and Institute of Electrical and Electronics Engineers norms. The containment is a steel-reinforced concrete structure engineered to seismic criteria informed by studies from US Geological Survey and regional seismic centers such as the Korea Meteorological Administration.
Primary systems include reactor coolant pumps, steam generators, pressurizers, and emergency core cooling systems bearing conceptual similarities to systems used by Combustion Engineering and Westinghouse reactors. Safety architecture integrates active safety systems, redundant instrumentation supplied by firms with ties to Siemens and Emerson Electric, and procedural frameworks influenced by reports from the International Atomic Energy Agency and incident analyses such as those following the Three Mile Island accident. Regulatory compliance referenced codes from American Nuclear Society and international peer review practices by entities including the Nuclear Energy Agency of the OECD.
Units were constructed at multiple sites including Kori, Hanul, and Shin Kori (spun from Kori expansions), with construction contracts awarded to conglomerates like Hyundai, Doosan, and Samsung. Commercial operation began in the 1990s, with milestones tied to national milestones such as South Korea's accession to the Organisation for Economic Co-operation and Development and participation in international trade missions alongside the Ministry of Trade, Industry and Energy. Operational records have been monitored by the Korea Hydro & Nuclear Power corporate organization and reported to international bodies including the International Atomic Energy Agency and the World Association of Nuclear Operators.
Operational incidents prompted regulatory scrutiny by the Nuclear Safety and Security Commission and national investigative bodies, with technical reviews referencing lessons from incidents such as the Fukushima Daiichi nuclear disaster. Investigations often involved experts from universities like Seoul National University and technical audits reflecting international cooperation with the International Atomic Energy Agency and peer review groups. Enforcement actions and retrofits have been coordinated with companies including Doosan and consulting support from engineering firms that engaged with standards promulgated by American Society of Mechanical Engineers.
As units approach end-of-design life, decisions on decommissioning or lifetime extension invoked regulators like the Nuclear Safety and Security Commission, operators such as Korea Hydro & Nuclear Power, and international consultants from firms with experience at sites like Sellafield and Dounreay. Lifetime extension programs included safety case development, component replacement using suppliers such as Korea Nuclear Fuel and international vendors, and public consultation involving civic groups and municipalities adjacent to sites like Busan and Ulsan. Financial and legal frameworks for decommissioning involved agencies similar to the Ministry of Strategy and Finance and international financing institutions.
The platform informed South Korea's export strategy for nuclear technology, contributing to bids and contracts with countries such as the United Arab Emirates, Turkey, and engagements in nations including Vietnam and Poland. Export activities leveraged South Korean state-owned enterprises and construction firms and interfaced with export control regimes maintained by the Nuclear Suppliers Group and bilateral agreements with the United States. Technical exchange and workforce development drew on training programs with institutions such as KAIST and international partnerships facilitated through forums like the International Atomic Energy Agency assemblies.
Category:Pressurized water reactors Category:South Korean nuclear power