{"id":36910,"date":"2026-01-22T18:47:32","date_gmt":"2026-01-22T17:47:32","guid":{"rendered":"https:\/\/geothermie-schweiz.ch\/?p=36910"},"modified":"2026-01-26T14:06:55","modified_gmt":"2026-01-26T13:06:55","slug":"analyse-des-couts-de-production-de-la-chaleur-geothermique-dans-les-systemes-de-chauffage-urbain","status":"publish","type":"post","link":"https:\/\/geothermie-schweiz.ch\/fr\/analyse-des-couts-de-production-de-la-chaleur-geothermique-dans-les-systemes-de-chauffage-urbain\/","title":{"rendered":"Analyse des co\u00fbts de production de la chaleur g\u00e9othermique dans les syst\u00e8mes de chauffage urbain"},"content":{"rendered":"<p><strong>La g\u00e9othermie hydrothermale de moyenne profondeur offre un potentiel consid\u00e9rable pour la d\u00e9carbonation du chauffage urbain en Suisse. <\/strong><!--more--><\/p>\n<p>Dans le contexte genevois, deux horizons g\u00e9ologiques \u2013 le Cr\u00e9tac\u00e9\/Malm et le Dogger \u2013 pr\u00e9sentent des conditions favorables \u00e0 une exploitation hydrothermale, bien que leurs caract\u00e9ristiques demeurent encore incertaines. <span style=\"text-decoration: underline;\"><a href=\"https:\/\/europeangeothermalcongress.eu\/wp-content\/uploads\/2025\/11\/Quiquerez-et-Mayer.pdf\" target=\"_blank\" rel=\"noopener\"><strong>L\u2019\u00e9tude r\u00e9alis\u00e9e par Lo\u00efc Quiquerez des SIG<\/strong><\/a><\/span> et pr\u00e9sent\u00e9e \u00e0 l&rsquo;EGC2025 \u00e9value les performances technico-\u00e9conomiques et la viabilit\u00e9 de leur exploitation dans un contexte g\u00e9ologique encore peu explor\u00e9. L\u2019\u00e9tude vise \u00e0 \u00e9valuer le co\u00fbt actualis\u00e9 de la chaleur (LCOH) pour deux concepts de doublets g\u00e9othermiques \u2013 l\u2019un \u00e0 1000\u2009m et l\u2019autre \u00e0 2000\u2009m \u2013 repr\u00e9sentatifs du contexte genevois. L\u2019objectif est d\u2019int\u00e9grer \u00e0 la fois les performances techniques et les incertitudes \u00e9conomiques et g\u00e9ologiques, afin d\u2019informer les d\u00e9cisions d\u2019investissement et les strat\u00e9gies de soutien financier.<\/p>\n<p><a href=\"https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-scaled.jpg\" rel=\"lightbox-0\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-36912 size-large\" src=\"https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-1024x576.jpg\" alt=\"\" width=\"900\" height=\"506\" srcset=\"https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-1024x576.jpg 1024w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-300x169.jpg 300w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-768x432.jpg 768w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-1536x864.jpg 1536w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-2048x1152.jpg 2048w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-1035x582.jpg 1035w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-754x424.jpg 754w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-549x309.jpg 549w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-395x222.jpg 395w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-404x227.jpg 404w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-356x200.jpg 356w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-850x478.jpg 850w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-1337x752.jpg 1337w, https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2026\/01\/Swiss_Technical_3_QUIQUEREZ_Loic-635x357.jpg 635w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>L\u2019\u00e9tude confirme la faisabilit\u00e9 technico-\u00e9conomique de la g\u00e9othermie moyenne profondeur et la compl\u00e9mentarit\u00e9 des syst\u00e8mes \u00e0 1000\u2009m et 2000\u2009m. Le syst\u00e8me \u00e0 1000\u2009m pr\u00e9sente un risque financier moindre, mais sa d\u00e9pendance \u00e0 l\u2019\u00e9lectricit\u00e9 est plus importante en raison de la pompe \u00e0 chaleur. Le syst\u00e8me \u00e0 2000\u2009m, plus capitalistique, peut entra\u00eener un risque financier plus \u00e9lev\u00e9 en cas d\u2019\u00e9chec, mais permet de r\u00e9duire la consommation \u00e9lectrique et les co\u00fbts d\u2019exploitation.<\/p>\n<p>Les principaux facteurs de co\u00fbts identifi\u00e9s sont le d\u00e9bit g\u00e9othermique, les temp\u00e9ratures de production et de r\u00e9injection, le facteur de charge, le taux d\u2019actualisation et le prix de l\u2019\u00e9lectricit\u00e9. L\u2019optimisation de ces param\u00e8tres, combin\u00e9e \u00e0 un environnement financier stable et des instruments de gestion du risque, est d\u00e9terminante pour la comp\u00e9titivit\u00e9 et la viabilit\u00e9 \u00e9conomique des syst\u00e8mes.<\/p>\n<p>Le LCOH s\u2019av\u00e8re un indicateur robuste pour \u00e9valuer la comp\u00e9titivit\u00e9 et le risque \u00e9conomique. Il convient toutefois de noter que les donn\u00e9es disponibles sur les d\u00e9bits g\u00e9othermiques restent limit\u00e9es, alors m\u00eame que ce param\u00e8tre a une influence majeure sur le LCOH. Les r\u00e9sultats doivent donc \u00eatre interpr\u00e9t\u00e9s avec prudence, en gardant \u00e0 l\u2019esprit cette incertitude.<\/p>\n<p>Pour la Suisse, trois priorit\u00e9s se d\u00e9gagent:<\/p>\n<ul type=\"disc\">\n<li>Renforcer la connaissance g\u00e9ologique gr\u00e2ce \u00e0 de nouveaux forages exploratoires,<\/li>\n<li>Int\u00e9grer la g\u00e9othermie dans des r\u00e9seaux thermiques performants, et<\/li>\n<li>D\u00e9velopper des m\u00e9canismes financiers adapt\u00e9s, en particulier pour r\u00e9duire le risque.<\/li>\n<\/ul>\n<p>La mise en \u0153uvre coordonn\u00e9e de ces leviers permettra \u00e0 la g\u00e9othermie de moyenne profondeur de devenir un pilier durable et fiable de la transition \u00e9nerg\u00e9tique.<\/p>\n<p><span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.aquaetgas.ch\/fr\/%C3%A9nergie\/chaleur-%C3%A0-distance\/20260110-ag01-g%C3%A9othermie-de-moyenne-profondeur\/?&amp;utm_source=AGnewsletterFR&amp;utm_content=AG01-FAQuiquerez\" target=\"_blank\" rel=\"noopener\"><strong>Consulter l\u2019article complet sur le site d\u2019Aqua &amp; Gaz.<\/strong><\/a><\/span><\/p>\n<p><span style=\"text-decoration: underline;\"><a href=\"https:\/\/geothermie-schweiz.ch\/wp_live\/wp-content\/uploads\/2025\/10\/Swiss_Technical_3_QUIQUEREZ_Loic.pdf\" target=\"_blank\" rel=\"noopener\"><strong>T\u00e9l\u00e9charger la pr\u00e9sentation (PDF)<\/strong><\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La g\u00e9othermie hydrothermale de moyenne profondeur offre un potentiel consid\u00e9rable pour la d\u00e9carbonation du chauffage urbain en Suisse.<\/p>\n","protected":false},"author":12,"featured_media":36920,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[97,64],"tags":[],"class_list":["post-36910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-canton-de-geneve","category-geothermie-profonde"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Analyse des co\u00fbts de production de la chaleur g\u00e9othermique dans les syst\u00e8mes de chauffage urbain - G\u00e9othermie-Suisse<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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