{"id":27183,"date":"2020-08-17T16:10:44","date_gmt":"2020-08-17T20:10:44","guid":{"rendered":"http:\/\/cna.flywheelsites.com\/advantages\/energy-reliability\/"},"modified":"2020-08-21T13:03:58","modified_gmt":"2020-08-21T17:03:58","slug":"fiabilite-energetique","status":"publish","type":"page","link":"https:\/\/cna.ca\/fr\/les-avantages\/fiabilite-energetique\/","title":{"rendered":"Fiabilit\u00e9&nbsp;\u00e9nerg\u00e9tique"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u00c9nergie de base<\/h2>\n\n\n\n<p>La demande en \u00e9lectricit\u00e9 augmente et baisse, car les bureaux consomment de l\u2019\u00e9lectricit\u00e9 pour faire fonctionner l\u2019\u00e9clairage pendant les heures de travail, les r\u00e9sidents allument leurs appareils lorsqu\u2019ils rentrent du travail, et ainsi de suite. Il y a aussi des fluctuations saisonni\u00e8res, les b\u00e2timents ayant besoin de plus de chauffage ou de climatisation lorsque les temp\u00e9ratures sont extr\u00eames.<\/p>\n\n\n\n<p>Pour \u00e9viter les baisses de tension, les r\u00e9seaux doivent \u00eatre con\u00e7us pour supporter la charge de pointe, r\u00e9pondant au pic de demande. Faire fonctionner un r\u00e9seau \u00e0 ce niveau en permanence entra\u00eenerait une grande perte d\u2019\u00e9lectricit\u00e9 et d\u2019argent. C\u2019est l\u00e0 que l\u2019\u00e9nergie nucl\u00e9aire entre en jeu.<\/p>\n\n\n\n<p><a href=\"https:\/\/cna.ca\/fr\/reacteurs-et-prm\/fonctionnement-d-un-reacteur-nucleaire\/\" class=\"rank-math-link\">Une fois qu\u2019un r\u00e9acteur nucl\u00e9aire est mis en marche<\/a>, il produit un niveau d\u2019\u00e9lectricit\u00e9 stable avec tr\u00e8s peu d\u2019interruptions pendant des d\u00e9cennies. Les r\u00e9acteurs CANDU (r\u00e9acteurs canadiens \u00e0 deut\u00e9rium-uranium) sont con\u00e7us de telle sorte qu\u2019il n\u2019est m\u00eame pas n\u00e9cessaire de les arr\u00eater pour les recharger en combustible.<\/p>\n\n\n\n<p>L\u2019\u00e9nergie nucl\u00e9aire est fiable et peu co\u00fbteuse. C\u2019est pourquoi les entreprises de services \u00e9nerg\u00e9tiques l\u2019utilisent comme \u00e9nergie de base \u2013&nbsp;c\u2019est-\u00e0-dire l\u2019\u00e9nergie n\u00e9cessaire pour r\u00e9pondre au plus faible niveau de demande. Pour combler la diff\u00e9rence entre la charge de base et la charge de pointe, elles ont recours \u00e0 une combinaison de combustibles fossiles (qui peuvent \u00eatre \u00e9teints et rallum\u00e9s rapidement) et d\u2019\u00e9nergies renouvelables (qui d\u00e9pendent du soleil ou du vent). Les futurs r\u00e9acteurs nucl\u00e9aires pourront \u00eatre mis en marche et arr\u00eat\u00e9s plus rapidement.<\/p>\n\n\n\n<p>Sans l\u2019\u00e9nergie nucl\u00e9aire, les r\u00e9seaux devraient s\u2019appuyer beaucoup plus sur des combustibles fossiles, g\u00e9n\u00e9rant plus de polluants et d\u2019\u00e9missions de carbone.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cna.ca\/wp-content\/uploads\/2018\/03\/Reasonably-Assured-Uranium-Resources-FR.svg\" alt=\"\" class=\"wp-image-22176\"\/><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.world-nuclear.org\/information-library\/nuclear-fuel-cycle\/mining-of-uranium\/world-uranium-mining-production.aspx\" class=\"rank-math-link\">Source: World Nuclear Association<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Co\u00fbts stables<\/h2>\n\n\n\n<p>La stabilit\u00e9 des prix de l\u2019\u00e9lectricit\u00e9 est essentielle pour les entreprises \u00e0 forte consommation d\u2019\u00e9nergie et pour celles qui fonctionnent avec de faibles marges b\u00e9n\u00e9ficiaires, ainsi que pour les r\u00e9sidents qui vivent d\u2019une paie \u00e0 l\u2019autre. \u00c9tant donn\u00e9 que le co\u00fbt du combustible pour les centrales nucl\u00e9aires repr\u00e9sente une petite partie des co\u00fbts de production, les fluctuations du prix de march\u00e9 de l\u2019uranium ont peu d\u2019effet sur le co\u00fbt de l\u2019\u00e9nergie nucl\u00e9aire.<\/p>\n\n\n\n<p>Le Canada poss\u00e8de quelques-unes des plus grandes r\u00e9serves d\u2019uranium au monde. En 2017, elles \u00e9taient estim\u00e9es \u00e0 <a href=\"https:\/\/www.world-nuclear.org\/information-library\/nuclear-fuel-cycle\/mining-of-uranium\/world-uranium-mining-production.aspx\">514&nbsp;400&nbsp;tonnes<\/a>, derri\u00e8re l\u2019Australie et le Kazakhstan. La teneur en \u00e9nergie des r\u00e9serves d\u2019uranium du Canada est environ quatre fois sup\u00e9rieure \u00e0 celle de toutes les r\u00e9serves canadiennes connues de p\u00e9trole conventionnel.<\/p>\n\n\n\n<p>Cette abondance offre au Canada une s\u00e9curit\u00e9 \u00e9nerg\u00e9tique consid\u00e9rable face aux fluctuations mondiales des prix des sources d\u2019\u00e9nergie, ainsi qu\u2019aux embargos, aux instabilit\u00e9s r\u00e9gionales et aux conflits qui peuvent bloquer le transport des sources de combustibles ou arr\u00eater la production.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019\u00e9nergie nucl\u00e9aire est fiable. Elle fonctionne de jour comme de nuit, \u00e0 tout moment de l\u2019ann\u00e9e. Elle contribue \u00e9galement \u00e0 la stabilit\u00e9 des prix, ce qui est important tant pour les entreprises que pour les r\u00e9sidents.<\/p>\n","protected":false},"author":1,"featured_media":13688,"parent":27166,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"topic":[],"class_list":["post-27183","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fiabilit\u00e9 \u00e9nerg\u00e9tique - Association nucl\u00e9aire canadienne<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cna.ca\/fr\/les-avantages\/fiabilite-energetique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fiabilit\u00e9 \u00e9nerg\u00e9tique - Association nucl\u00e9aire canadienne\" \/>\n<meta property=\"og:description\" content=\"L\u2019\u00e9nergie nucl\u00e9aire est fiable. 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