Editing Nuclear reactor (section)

=== Table by country ===
{| class="wikitable sortable mw-collapsible"
|+First nations to operate a nuclear reactor
!Country
!First reactor
!Criticality date
!First grid-connected reactor
!Connection date
|-
|{{Flag|United States|1942}}
|[[Chicago Pile-1|CP-1]]
|{{Date table sorting|2 December 1942}}<ref name="r974">{{cite book |last=Reed |first=Bruce Cameron |title=Manhattan Project |date=2020 |publisher=Springer International Publishing |isbn=978-3-030-45733-4 |publication-place=Cham |pages=149–169 |chapter=Piles and Secret Cities |doi=10.1007/978-3-030-45734-1_5}}</ref>
|[[Shippingport Atomic Power Station]]
|{{Date table sorting|18 December 1957}}<ref name="s016">{{cite web |date=1955-05-01 |title=Shippingport |url=https://world-nuclear.org/nuclear-reactor-database/details/SHIPPINGPORT |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|Canada}}
|[[ZEEP]]
|{{Date table sorting|5 September 1945}}<ref name="zeep-cstm">{{cite web |title=ZEEP -- Canada's First Nuclear Reactor |url=http://www.sciencetech.technomuses.ca/english/whatson/zeep.cfm |archiveurl=https://web.archive.org/web/20140306233719/http://www.sciencetech.technomuses.ca/english/whatson/zeep.cfm |archivedate=6 March 2014 |publisher=Canada Science and Technology Museum}}</ref>
|[[Nuclear Power Demonstration]]
|{{Date table sorting|4 June 1962}}<ref name="i361">{{cite web |date=1958-01-01 |title=Rolphton NPD |url=https://world-nuclear.org/nuclear-reactor-database/details/Rolphton-NPD |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|Soviet Union}}
|[[F-1 (nuclear reactor)|F-1]]
|{{Date table sorting|25 December 1946}}<ref>{{cite web |last=Vakhroucheva |first=Elizaveta |title=Division of System Analysis Elektronika Information and Computer Complex Engineering and Production Division |url=http://www.nti.org/db/nisprofs/russia/reactor/research/with/kurchato.htm#f1 |url-status=dead |archive-url=https://web.archive.org/web/20090115212712/http://www.nti.org/db/nisprofs/russia/reactor/research/with/kurchato.htm#f1 |archive-date=15 January 2009 |accessdate=25 December 2010 |work=[[Kurchatov Institute]] |publisher=NTI}}</ref>
|[[Obninsk Nuclear Power Plant]]
|{{Date table sorting|27 June 1954}}<ref name="n584">{{cite web |date=1951-01-01 |title=APS 1 Obninsk |url=https://world-nuclear.org/nuclear-reactor-database/details/APS-1-Obninsk |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|United Kingdom}}
|[[GLEEP]]
|{{Date table sorting|15 August 1947}}<ref>{{Cite book |last=Hill |first=C |title=An Atomic Empire: A Technical History of the Rise and Fall of the British Atomic Energy Programme |date=2013 |publisher=Imperial College Press |isbn=978-1-908977-41-0}}</ref>
|[[Calder Hall nuclear power station]]
|{{Date table sorting|27 August 1956}}<ref name="x809">{{cite web |date=1953-08-01 |title=Calder Hall 1 |url=https://world-nuclear.org/nuclear-reactor-database/details/Calder-Hall-1 |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|France|1949}}
|[[Zoé (reactor)|EL-1 (Zoé)]] 
|{{Date table sorting|15 December 1948}}<ref name="ic1">{{cite web |title=Irène and Frédéric Joliot-Curie |url=http://www.curie.fr/fondation/musee/irene-frederic-joliot-curie.cfm/lang/_gb.htm |url-status=dead |archive-url=https://web.archive.org/web/20100603032613/http://www.curie.fr/fondation/musee/irene-frederic-joliot-curie.cfm/lang/_gb.htm |archive-date=2010-06-03 |access-date=26 April 2010 |publisher=Institut Curie}}</ref>
|[[Marcoule Nuclear Site]]
|{{Date table sorting|22 April 1959}}<ref name="j266">{{cite web |date=1955-03-01 |title=G 2 (Marcoule) |url=https://world-nuclear.org/nuclear-reactor-database/details/G-2-(Marcoule) |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|Norway}}{{NoteTag|JEEP was constructed jointly by the Norwegian [[Royal Norwegian Council for Scientific and Industrial Research|NTNF]] and the Dutch {{ill|Foundation for Fundamental Research on Matter|lt=FOM|nl|FOM}}}}
|[[JEEP (nuclear reactor)|JEEP]]
|{{Date table sorting|30 July 1951}}<ref name="r938">{{cite web |last=Splunter |first=J.M. van. |date=1994 |title=Love at first sight. Co-operation between the Netherlands and Norway on the peaceful use of atomic energy, 1950-1960 |url=https://inis.iaea.org/search/search.aspx?orig_q=RN:26038487 |access-date=2025-01-04 |website=INIS}}</ref>
|None constructed
|n/a
|-
|{{Flag|Sweden}}
|[[R1 (nuclear reactor)|R1]]
|{{Date table sorting|13 July 1954}}<ref name="c539">{{cite web |last=Blomstrand |first=Edward |date=2005-02-01 |title=Swedish nuclear power. A review of the legislation in the nuclear energy field from the second world war til the new millennium; Svensk kaernenergi. En expose oever lagstiftningen paa kaernenergiomraadet fraan andra vaerldskriget till millennieskiftet |url=https://www.osti.gov/etdeweb/biblio/20637474 |access-date=2025-01-05 |website=OSTI.GOV}}</ref>
|[[Ågesta Nuclear Plant]]
|{{Date table sorting|1 May 1964}}<ref name="g768">{{cite web |date=1957-12-01 |title=Agesta |url=https://world-nuclear.org/nuclear-reactor-database/details/Agesta |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|Belgium|1956}}
|{{Interlanguage link|BR1 (nuclear reactor)|lt=BR1|nl|BR1|fr|SCK_CEN#BR-1}}
|{{Date table sorting|11 May 1956}}<ref name="a063">{{cite web |last=Domain |first=Research |date=2016-04-25 |title=Belgian Reactor 1 / Research facilities / Science Platform |url=http://science.sckcen.be/en/Facilities/BR1 |url-status=dead |archive-url=https://web.archive.org/web/20160625034245/http://science.sckcen.be/en/Facilities/BR1 |archive-date=2016-06-25 |access-date=2025-01-06 |website=science.sckcen.be}}</ref>
|{{Interlanguage link|BR3 (nuclear reactor)|lt=BR3|nl|BR3|fr|SCK_CEN#BR-3}}
|{{Date table sorting|10 October 1962}}<ref name="t184">{{cite web |date=1957-11-01 |title=BR-3 |url=https://world-nuclear.org/nuclear-reactor-database/details/BR-3 |access-date=2025-01-06 |website=World Nuclear Association}}</ref>
|-
|{{Flag|India}}
|[[Apsara (nuclear reactor)|Apsara]]
|{{Date table sorting|4 August 1956}}'''<ref>{{cite web |title=Apsara Research Reactor |url=http://www.nti.org/facilities/818/ |url-status=dead |archive-url=https://web.archive.org/web/20150419042039/http://www.nti.org/facilities/818/ |archive-date=19 April 2015 |access-date=12 April 2015}}</ref>'''
|[[Tarapur Atomic Power Station]]
|{{Date table sorting|1 April 1969}}<ref name="c800">{{cite web |date=1964-10-01 |title=Tarapur 1 |url=https://world-nuclear.org/nuclear-reactor-database/details/Tarapur-1 |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|Japan}}
|{{Interlanguage link|JRR-1|ja|JRR-1}}
|27 August 1957
|[[Tōkai Nuclear Power Plant]]
|25 July 1966
|-
|{{Flag|West Germany}}
|{{Interlanguage link|FRM-I|de|Forschungsreaktor_München}}
|{{Date table sorting|31 October 1957}}<ref name="t885">{{cite book |last=Trischler |first=Helmuth |title=Politik und Kultur im föderativen Staat 1949 bis 1973 |date=2004-12-31 |publisher=OLDENBOURG WISSENSCHAFTSVERLAG |isbn=978-3-486-56596-6 |page=156 |chapter=Nationales Innovationssystem und regionale Innovationspolitik |doi=10.1524/9783486708646.117}}</ref>
|[[Kahl Nuclear Power Plant]]
|{{Date table sorting|17 June 1961}}<ref name="u093">{{cite web |date=1958-07-01 |title=VAK Kahl |url=https://world-nuclear.org/nuclear-reactor-database/details/VAK-Kahl |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|East Germany}}
|{{Interlanguage link|RFR (nuclear reactor)|de|Rossendorfer_Forschungsreaktor|lt=RFR}}
|16 December 1957<ref name="s1462">{{cite web |date=1955-04-18 |title=Die Geschichte des HZDR im Überblick |url=https://www.hzdr.de/db/Cms?pOid=26670&pNid=1826 |access-date=2025-05-10 |website=Helmholtz-Zentrum Dresden-Rossendorf, HZDR}}</ref>
|[[Rheinsberg Nuclear Power Plant]]
|6 May 1966<ref name="e389">{{cite web |date=1960-01-01 |title=Rheinsberg |url=https://world-nuclear.org/nuclear-reactor-database/details/RHEINSBERG |access-date=2025-05-10 |website=World Nuclear Association}}</ref>
|-
|{{Flag|China}}
|[[HWRR]]
|{{Date table sorting|27 September 1958}}<ref name="e655">{{cite journal |last=Frank |first=Lewis A. |date=1966 |title=Nuclear Weapons Development in China |journal=Bulletin of the Atomic Scientists |volume=22 |issue=1 |pages=12–15 |bibcode=1966BuAtS..22a..12F |doi=10.1080/00963402.1966.11454882 |issn=0096-3402}}</ref>
|[[Qinshan Nuclear Power Plant]]
|{{Date table sorting|15 December 1991}}<ref name="y728">{{cite web |date=1985-03-20 |title=Qinshan 1 |url=https://world-nuclear.org/nuclear-reactor-database/details/Qinshan-1 |access-date=2025-01-04 |website=World Nuclear Association}}</ref>
|-
|{{Flag|Italy}}
|{{Interlanguage link|ISPRA-1|it|ISPRA-1}}
|{{Date table sorting|20 November 1959}}<ref>{{cite web |title=Scorie a riposo. ISPRA-1, il primo reattore nucleare italiano {{!}} Il Bo Live UniPD |url=https://ilbolive.unipd.it/it/news/societa/scorie-riposo-ispra1-primo-reattore-nucleare |website=ilbolive.unipd.it |access-date=25 April 2025 |language=it |date=18 July 2022}}</ref>
|[[Latina Nuclear Power Plant]]
|{{Date table sorting|May 1963}}
|}
[[File:HPR1000, reactor coolant system.png|thumb|Primary coolant system showing [[reactor pressure vessel]] (red), [[Steam generator (nuclear power)|steam generators]] (purple), [[pressurizer]] (blue), and pumps (green) in the three coolant loop [[Hualong One]] [[pressurized water reactor]] design]]