{"id":31094,"date":"2025-07-22T15:39:56","date_gmt":"2025-07-22T13:39:56","guid":{"rendered":"https:\/\/www.cloudmagazin.com\/2026\/04\/03\/les-geants-de-la-tech-continuent-dinvestir-dans-les-mini-centrales-nucleaires-et\/"},"modified":"2026-06-22T13:44:46","modified_gmt":"2026-06-22T11:44:46","slug":"les-geants-de-la-tech-continuent-dinvestir-dans-les-mini-centrales-nucleaires-et","status":"publish","type":"post","link":"https:\/\/www.cloudmagazin.com\/fr\/2025\/07\/22\/les-geants-de-la-tech-continuent-dinvestir-dans-les-mini-centrales-nucleaires-et\/","title":{"rendered":"Les g\u00e9ants de la tech continuent d&rsquo;investir dans les mini-centrales nucl\u00e9aires et la fusion nucl\u00e9aire"},"content":{"rendered":"<p style=\"color:#6190a9;font-size:0.9em;margin:0 0 16px;padding:0\">3 min de lecture<\/p>\n<p><strong>En raison de l\u2019\u00e9norme app\u00e9tit \u00e9nerg\u00e9tique de l\u2019IA, l\u2019\u00e9nergie nucl\u00e9aire conna\u00eet un regain d\u2019int\u00e9r\u00eat mondial sous la forme de mini-centrales nucl\u00e9aires. Nvidia investit par exemple dans une startup d\u00e9j\u00e0 fond\u00e9e et soutenue par Bill Gates, tandis que Google tente m\u00eame de se rapprocher du r\u00eave de la fusion nucl\u00e9aire.<\/strong><\/p>\n<p>L\u2019\u00e9lectricit\u00e9 produite en Allemagne provient certes de plus en plus de sources renouvelables. Cependant, le vent, le soleil et l\u2019eau sont des \u00ab compagnons peu fiables \u00bb. Parfois, ils ne produisent pas du tout d\u2019\u00e9lectricit\u00e9 ou trop peu, parfois trop.<\/p>\n<p>Les centres de donn\u00e9es et surtout les centres de calcul pour l\u2019IA ont cependant besoin d\u2019une \u00e9nergie de plus en plus fiable, c\u2019est pourquoi, m\u00eame en R\u00e9publique f\u00e9d\u00e9rale, l\u2019appel au retour \u00e0 l\u2019\u00e9nergie nucl\u00e9aire se fait de nouveau entendre, bien que les exploitants de centrales eux-m\u00eames d\u00e9clinent poliment.<\/p>\n<h2>Les mini-centrales nucl\u00e9aires seraient plus s\u00fbres<\/h2>\n<p>L\u2019argument des partisans est toujours le m\u00eame : l\u2019\u00e9nergie nucl\u00e9aire serait bien plus propre que les centrales \u00e0 charbon et \u00e0 gaz, ce qui lui permettrait \u00e9galement de contribuer \u00e0 freiner le changement climatique mondial. Les opposants, dont une grande partie de la population allemande, soulignent cependant les risques, les co\u00fbts de construction extr\u00eamement \u00e9lev\u00e9s et le probl\u00e8me non r\u00e9solu du stockage d\u00e9finitif et de l\u2019\u00e9limination des d\u00e9chets.<\/p>\n<div id=\"attachment_26465\" style=\"width: 260px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.cloudmagazin.com\/fr\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-scaled.jpg\"><img decoding=\"async\" loading=\"lazy\" aria-describedby=\"caption-attachment-26465\" class=\"wp-image-26465 size-medium\" src=\"https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-250x167.jpg\" alt=\"Tech-Giganten investieren weiter in Mini-Atomkraftwerke und Kernfusion\" width=\"250\" height=\"167\" srcset=\"https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-250x167.jpg 250w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-700x467.jpg 700w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-768x513.jpg 768w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-1536x1025.jpg 1536w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-2048x1367.jpg 2048w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/christina-wocintechchat-com-b6dfPNHa81w-unsplash-120x80.jpg 120w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/p>\n<p id=\"caption-attachment-26465\" class=\"wp-caption-text\">Les mini-centrales nucl\u00e9aires devraient alimenter les centres de donn\u00e9es en \u00e9lectricit\u00e9 de mani\u00e8re s\u00fbre et fiable. (Source de l&rsquo;image : Unsplash \/ Christina wocintechchat)<\/p>\n<\/div>\n<p>Ce probl\u00e8me n\u2019existerait pas avec la fusion nucl\u00e9aire, mais le rendement esp\u00e9r\u00e9, plusieurs fois sup\u00e9rieur \u00e0 l\u2019\u00e9nergie investie, ne devrait pas se concr\u00e9tiser avant les ann\u00e9es 2030 ou 2040. Google souhaite acc\u00e9l\u00e9rer le d\u00e9veloppement avec le soutien d\u2019une startup. En attendant, le g\u00e9ant des moteurs de recherche mise sur une double strat\u00e9gie en mati\u00e8re d\u2019\u00e9nergie nucl\u00e9aire et pr\u00e9voit de <a href=\"https:\/\/www.cloudmagazin.com\/fr\/2025\/06\/11\/nouveaux-reacteurs-nucleaires-google-mise-aussi-sur-le-nucleaire-pour-ses-centre\/\" target=\"_blank\" rel=\"noopener\">s\u2019approvisionner en \u00e9lectricit\u00e9 issue de mini-centrales nucl\u00e9aires pour ses centres de donn\u00e9es d\u2019ici 2030<\/a>.<\/p>\n<p>Les mini-centrales nucl\u00e9aires \u00e9quip\u00e9es de r\u00e9acteurs appel\u00e9s SMR (Small Modular Reactors) devraient \u00eatre bien moins ch\u00e8res et plus s\u00fbres, d\u2019autant que les r\u00e9sidus fissiles sont bien moins nombreux. Et cela suscite l\u2019int\u00e9r\u00eat <a href=\"https:\/\/www.cloudmagazin.com\/fr\/2024\/10\/08\/nouveau-data-center-energie-nucleaire\/\" target=\"_blank\" rel=\"noopener\">des hyperscalers et des grands exploitants de centres de donn\u00e9es comme AWS<\/a>, qui investissent \u00e0 leur tour dans de telles installations SMR.<\/p>\n<h2>Nvidia investit dans une cr\u00e9ation de Gates<\/h2>\n<p>L\u2019entreprise am\u00e9ricaine Nvidia, par exemple, a pris une participation via sa filiale de capital-risque NVentures dans la startup nucl\u00e9aire TerraPower, fond\u00e9e et soutenue par Bill Gates. <a href=\"https:\/\/t3n.de\/news\/nvidia-investiert-in-nuklear-startup-das-auch-bill-gates-unterstuetzt-1693540\/?filtered=1&amp;mc_cid=1f3721e985&amp;mc_eid=c99854deef\" target=\"_blank\" rel=\"noopener\">Comme le rapporte t3n<\/a>, en se r\u00e9f\u00e9rant \u00e0 <a href=\"https:\/\/apigateway.agilitypr.com\/distributions\/history\/ac2da5bb-1841-450d-9414-d2c5406af683?recipientId=c21d13c2-0bdb-4edf-bdbb-38b007f3357f\" target=\"_blank\" rel=\"noopener\">une d\u00e9claration de la startup am\u00e9ricaine<\/a>.<\/p>\n<p>Dans cette d\u00e9claration, le PDG Chris Levesque explique \u00ab que les innovations en science nucl\u00e9aire peuvent avoir des impacts positifs et mondiaux \u00bb, et qu\u2019il s\u2019agit \u00e9galement de \u00ab solutions sans carbone \u00bb propos\u00e9es par TerraPower.<\/p>\n<p>TerraPower ne peut d\u2019ailleurs plus vraiment \u00eatre qualifi\u00e9e de startup. En effet, Bill Gates avait d\u00e9j\u00e0 fond\u00e9 l\u2019entreprise bas\u00e9e \u00e0 Bellevue, dans l\u2019\u00c9tat de Washington, en 2006 et y avait inject\u00e9 environ un milliard de dollars en 2024.<\/p>\n<p>Le nouveau tour d\u2019investissement de Nvidia, ou plut\u00f4t de NVentures, auquel s\u2019est jointe HD Hyundai, a permis de r\u00e9colter 650 millions de dollars suppl\u00e9mentaires. La mini-centrale nucl\u00e9aire ainsi financ\u00e9e est plus respectueuse de l\u2019environnement, refroidie au sodium et devrait atteindre une puissance de 345 m\u00e9gawatts.<\/p>\n<h2>L\u2019espoir de la fusion nucl\u00e9aire<\/h2>\n<p>Revenons \u00e0 Google et \u00e0 ses projets de fusion : selon Micheal Terrell, qui dirige le domaine \u00c9nergie avanc\u00e9e, l\u2019entreprise am\u00e9ricaine consid\u00e8re avec \u00ab espoir \u00bb les r\u00e9centes avanc\u00e9es de la startup Commonwealth Fusion Systems (CFS), une spin-off du MIT qu\u2019elle soutient financi\u00e8rement.<\/p>\n<div id=\"attachment_26466\" style=\"width: 260px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.cloudmagazin.com\/fr\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-scaled.jpg\"><img decoding=\"async\" loading=\"lazy\" aria-describedby=\"caption-attachment-26466\" class=\"wp-image-26466 size-medium\" src=\"https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-250x141.jpg\" alt=\"Hoffnung auf Kernfusion\" width=\"250\" height=\"141\" srcset=\"https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-250x141.jpg 250w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-700x394.jpg 700w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-768x432.jpg 768w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-1536x864.jpg 1536w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-2048x1152.jpg 2048w, https:\/\/www.cloudmagazin.com\/wp-content\/uploads\/2025\/07\/shubham-dhage-3kdyIvs64gQ-unsplash-1-120x68.jpg 120w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/p>\n<p id=\"caption-attachment-26466\" class=\"wp-caption-text\">La fusion nucl\u00e9aire est consid\u00e9r\u00e9e comme un espoir pour une \u00e9nergie propre sans d\u00e9chets. (Source de l&rsquo;image : Unsplash \/ shubham-dhage)<\/p>\n<\/div>\n<p>La perspective de pouvoir un jour produire une source d\u2019\u00e9nergie immens\u00e9ment grande sans d\u00e9chets radioactifs motive la recherche depuis les ann\u00e9es 1960. Jusqu\u2019\u00e0 pr\u00e9sent, cependant, personne n\u2019a r\u00e9ussi, comme mentionn\u00e9, \u00e0 obtenir plus d\u2019\u00e9nergie que celle n\u00e9cessaire pour d\u00e9clencher et surtout stabiliser la fusion. CFS estime toutefois, avec une installation de d\u00e9monstration appel\u00e9e SPARC \u00e0 Devens dans l\u2019\u00c9tat du Massachusetts, <a href=\"https:\/\/www.heise.de\/news\/Google-erhoeht-Einsatz-fuer-Kernfusion-10465440.html\" target=\"_blank\" rel=\"noopener\">selon Heise online<\/a>, \u00eatre sur la bonne voie pour connecter au r\u00e9seau la premi\u00e8re centrale \u00e0 fusion nucl\u00e9aire commerciale au monde au d\u00e9but de la prochaine d\u00e9cennie, soit d\u00e8s le d\u00e9but des ann\u00e9es 2030. Dans cette installation, des aimants supraconducteurs devraient contr\u00f4ler le plasma n\u00e9cessaire \u00e0 la fusion nucl\u00e9aire, ce que <a href=\"https:\/\/blog.google\/outreach-initiatives\/sustainability\/our-latest-bet-on-a-fusion-powered-future\/\" target=\"_blank\" rel=\"noopener\">Google salue avec enthousiasme dans un article de blog<\/a>, car cela permet des \u00ab conceptions plus compactes et \u00e9conomiquement viables \u00bb.<\/p>\n<figure style=\"margin:36px 0;padding:0;\">\n<blockquote style=\"position:relative;margin:0;padding:30px 34px 28px;background:linear-gradient(135deg,#013a47 0%,#004a59 100%);border-radius:12px;box-shadow:0 10px 30px rgba(0,40,60,0.18);overflow:hidden;\"><p>\n<span aria-hidden=\"true\" style=\"position:absolute;right:22px;top:6px;font-family:Georgia,serif;font-size:90px;line-height:1;color:#0bb7fd;opacity:0.18;\">&rdquo;<\/span><\/p>\n<div style=\"font-family:'SF Mono','Monaco','Consolas',monospace;font-size:10.5px;color:#0bb7fd;letter-spacing:0.18em;text-transform:uppercase;margin-bottom:13px;\">\/\/ L&rsquo;essentiel<\/div>\n<p style=\"margin:0;font-size:1.15em;line-height:1.6;color:#f2fafd;font-weight:500;position:relative;\">Ce probl\u00e8me n\u2019existerait pas avec la fusion nucl\u00e9aire, mais le rendement esp\u00e9r\u00e9, plusieurs fois sup\u00e9rieur \u00e0 l\u2019\u00e9nergie investie, ne devrait pas se concr\u00e9tiser avant les ann\u00e9es 2030 ou 2040.<\/p>\n<\/blockquote>\n<\/figure>\n<h2>Google et Gates s\u2019impliquent<\/h2>\n<p>Cela a probablement convaincu Google. L\u2019entreprise, aux c\u00f4t\u00e9s \u00e0 nouveau de Bill Gates, est d\u00e9j\u00e0 entr\u00e9e au capital de CFS en 2018 avec du capital-risque. Les entreprises gardent le silence sur le montant investi par Google cette fois-ci. Mais le g\u00e9ant des moteurs de recherche et des donn\u00e9es s\u2019est d\u00e9j\u00e0 engag\u00e9 contractuellement \u00e0 acheter 200 m\u00e9gawatts d\u2019\u00e9lectricit\u00e9 pour un r\u00e9acteur commercial pr\u00e9vu en Virginie. Cela repr\u00e9senterait environ la moiti\u00e9 de la capacit\u00e9 vis\u00e9e sur ce site.<\/p>\n<p>Microsoft a \u00e9galement sign\u00e9 en 2023 un contrat d\u2019achat avec le d\u00e9veloppeur de fusion nucl\u00e9aire Helion pour 50 m\u00e9gawatts. \u00c0 l\u2019\u00e9poque, il \u00e9tait indiqu\u00e9 que la production d\u2019\u00e9lectricit\u00e9 devait commencer en 2028. Les experts allemands et le gouvernement f\u00e9d\u00e9ral, en revanche, n\u2019envisagent pas une commercialisation des centrales \u00e0 fusion nucl\u00e9aire avant le milieu des ann\u00e9es 2040 au plus t\u00f4t.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right\"><em>Source de l&rsquo;image : Unsplash \/ &nbsp;Joakim Honkasalo<\/em><\/p>\n<div id=\"container\">&nbsp;<\/div>\n","protected":false},"excerpt":{"rendered":"En raison de l\u2019\u00e9norme app\u00e9tit \u00e9nerg\u00e9tique de l\u2019IA, l\u2019\u00e9nergie nucl\u00e9aire conna\u00eet un regain d\u2019int\u00e9r\u00eat mondial sous la forme de mini-centrales nucl\u00e9aires. Nvidia investit par exemple dans une startup d\u00e9j\u00e0 fond\u00e9e et soutenue par Bill Gates, tandis que Google tente m\u00eame de se rapprocher du r\u00eave de la fusion nucl\u00e9aire. L\u2019\u00e9lectricit\u00e9 produite&#8230; <a class=\"view-article\" href=\"https:\/\/www.cloudmagazin.com\/fr\/2025\/07\/22\/les-geants-de-la-tech-continuent-dinvestir-dans-les-mini-centrales-nucleaires-et\/\">&raquo; Article<\/a>","protected":false},"author":98,"featured_media":26462,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_meta-robots-adv":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_opengraph-image-id":0,"_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_twitter-image-id":0,"pre_headline":"","bildquelle":"","teasertext":"","language":"de","_evm_slot_owner":"","_evm_translation_lang":"","featured_post":0,"featured_post_sortierung":0,"_wp_old_slug":[],"footnotes":""},"categories":[934,939],"tags":[],"industry":[],"class_list":["post-31094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-durabilite"],"evm_reading_time_minutes":6,"wpml_language":"fr","wpml_translation_of":26445,"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mini-centrales nucl\u00e9aires : L&#039;avenir de l&#039;\u00e9nergie propre<\/title>\n<meta name=\"description\" content=\"Nucl\u00e9aire : D\u00e9couvrez comment l&#039;IA booste l&#039;int\u00e9r\u00eat pour l&#039;\u00e9nergie nucl\u00e9aire. 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