{"id":46217,"date":"2026-05-26T13:37:34","date_gmt":"2026-05-26T11:37:34","guid":{"rendered":"https:\/\/sceaux-lagazette.fr\/?p=46217"},"modified":"2026-05-26T13:37:35","modified_gmt":"2026-05-26T11:37:35","slug":"fontenay-aux-roses-le-projet-de-geothermie-suspendu","status":"publish","type":"post","link":"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/","title":{"rendered":"Fontenay-aux-Roses\u00a0: Le projet de g\u00e9othermie suspendu"},"content":{"rendered":"\n<p>Le forage des puits de g\u00e9othermie qui devraient alimenter les villes de Fontenay-aux-Roses, Sceaux et Bourg-la-Reine est en suspens. La nouvelle majorit\u00e9 \u00e9lue en mars \u00e0 Fontenay a en effet d\u00e9cid\u00e9 de prendre le temps d\u2019informer et associer les habitants de la ville.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Le probl\u00e8me du site du Panorama<\/h2>\n\n\n\n<p>Un r\u00e9seau de g\u00e9othermie, ce sont d\u2019abord deux puits pour l\u2019arriv\u00e9e de l\u2019eau chaude et sa r\u00e9injection. Puis une station de production comprenant essentiellement un \u00e9changeur de chaleur entre l\u2019eau g\u00e9othermale et l\u2019eau du r\u00e9seau de chaleur urbain, une ou plusieurs pompes \u00e0 chaleur et deux chaudi\u00e8res \u00e0 gaz. Et enfin le r\u00e9seau urbain qui am\u00e8ne l\u2019eau chaude au pied des endroits de consommation (r\u00e9sidences ou autres).<\/p>\n\n\n\n<p>La station de production n\u2019est pas tr\u00e8s grande, mais il lui faut une place minimum. Et la place n\u00e9cessaire est provisoirement plus importante au moment du forage des puits. Le site du Panorama est le seul que la municipalit\u00e9 pr\u00e9c\u00e9dente a trouv\u00e9 pour installer la station. Mais cela conduit \u00e0 mordre sur le quart du terrain de football de la ville (la moiti\u00e9 pendant les travaux). D\u2019o\u00f9 des r\u00e9actions n\u00e9gatives du club de football, qui compte 500 licenci\u00e9s.<\/p>\n\n\n\n<p>Par ailleurs, des riverains du site ont d\u00e9pos\u00e9 un recours contre le permis de construire la station, au nom de la biodiversit\u00e9. Le projet n\u2019empi\u00e8te pas sur la zone naturelle class\u00e9e, mais il est tout \u00e0 c\u00f4t\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9quilibre financier<\/h2>\n\n\n\n<p>Le projet repr\u00e9sente un montant d\u2019investissement affich\u00e9 de 70 M\u20ac. La soci\u00e9t\u00e9 G\u00e9osud, qui a \u00e9t\u00e9 cr\u00e9\u00e9e en 2024 pour porter le projet avec un capital de 2,5 M\u20ac, a 4 actionnaires&nbsp;: le syndicat intercommunal SIPPEREC pour 52%, la ville de Fontenay-aux-Roses pour 27%, la ville de Sceaux pour 17% et la ville de Bourg-la-Reine pour 4%. Les participations des trois villes refl\u00e8tent la r\u00e9partition pr\u00e9vue des consommations. Tous les actionnaires de G\u00e9osud sont donc des acteurs publics. G\u00e9osud est une soci\u00e9t\u00e9 publique locale qui est titulaire d\u2019une d\u00e9l\u00e9gation de service public pour une dur\u00e9e de 35 ans.<\/p>\n\n\n\n<p>On sait depuis f\u00e9vrier 2026 que le projet b\u00e9n\u00e9ficiera d\u2019une subvention de l\u2019ADEME pour plus de 25M\u20ac et d\u2019une subvention de la m\u00e9tropole du Grand Paris pour 1,3M\u20ac. Au total, ces subventions repr\u00e9sentent 39% du co\u00fbt d\u2019investissement attendu. Le reste sera couvert par deux emprunts, l\u2019un aupr\u00e8s de la Caisse des D\u00e9p\u00f4ts (banque des territoires) l\u2019autre aupr\u00e8s de la Caisse d\u2019\u00e9pargne d\u2019\u00cele-de-France.<\/p>\n\n\n\n<p>Le projet permettra de d\u00e9livrer de la chaleur \u00e0 diff\u00e9rents consommateurs sur le territoire des trois villes. La facturation de la chaleur d\u00e9livrer doit permettre de rembourser les emprunts et de financer les diff\u00e9rentes d\u00e9penses de fonctionnement et d\u2019entretien du futur r\u00e9seau urbain. Les futurs consommateurs potentiels se r\u00e9partissent pour 23% par des \u00e9tablissements publics), pour 28% par des \u00e9tablissements tertiaires, principalement publics (CEA, b\u00e2timents administratifs et culturels, facult\u00e9 Jean Monnet \u2026), pour 25% par des bailleurs sociaux (dont 7% pour la ZAC Paradis) et pour 24% par des r\u00e9sidences priv\u00e9es.<\/p>\n\n\n\n<p>Les incertitudes r\u00e9sident dans les \u00e9volutions des prix des \u00e9nergies (plus le prix du gaz augmente, plus l\u2019op\u00e9ration est rentable pour les consommateurs qui auront d\u00e9cid\u00e9 de remplacer le gaz par le r\u00e9seau de chaleur) et dans la part des clients potentiels qui d\u00e9cideront de choisir la g\u00e9othermie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">La suspension du projet<\/h2>\n\n\n\n<p>C\u2019est l\u2019\u00e9quipe municipale \u00e9lue en mars qui a d\u00e9cid\u00e9 de suspendre le projet. Elle s\u2019en est expliqu\u00e9 dans <a href=\"https:\/\/www.calameo.com\/read\/002673207f09e3035a461\">un article sur Fontenay mag<\/a> (pages 12 et 13). De son c\u00f4t\u00e9, Pauline Le Fur, maire de la ville, s\u2019en est expliqu\u00e9 <a href=\"https:\/\/www.facebook.com\/p.lf.739\">sur sa page Facebook<\/a>. En r\u00e9sum\u00e9, la suspension (provisoire \u00e0 ce stade) vise d\u2019une part \u00e0 mieux informer et \u00e9couter les habitants, et d\u2019autre part \u00e0 approfondir plusieurs sujets consid\u00e9r\u00e9s comme en suspens&nbsp;: les risques financiers pour la ville, la question des \u00e9quipements pour le club de foot, la question du site class\u00e9. Deux r\u00e9unions publiques sont pr\u00e9vues les 20 et 26 mai. Un groupe de travail avec un expert ext\u00e9rieur examine la question du risque financier et des discussions sont en cours autour de la question du terrain de foot et celle de l\u2019espace naturel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">La position des acteurs politiques<\/h2>\n\n\n\n<p>La liste qui a gagn\u00e9 les \u00e9lections au deuxi\u00e8me tour \u00e0 Fontenay est issue de la fusion de trois listes pr\u00e9sentes au premier tour&nbsp;: celle men\u00e9e par Pauline Le Fur a recueilli 23,87% des exprim\u00e9s, celle men\u00e9e par Gilles Mergy 22,02% et celle men\u00e9e par Michel Faye 5,21% des suffrages. La liste fusionn\u00e9e tenait compte de ces r\u00e9sultats dans sa composition.<\/p>\n\n\n\n<p><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/03\/06\/pour-fontenay-liste-associative-ecologique-citoyenne-avec-michel-faye\/\">Michel Faye<\/a> \u00e9tait tr\u00e8s critique sur le projet (<a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2025\/11\/26\/geothermie-avec-lunion-associative-fontenaisienne\/\">voir cet article<\/a>) et voulait l\u2019arr\u00eater. Il d\u00e9fendait une solution alternative bas\u00e9e sur une forte isolation thermique des b\u00e2timents et l\u2019utilisation de la g\u00e9othermie de surface. Un article des nouvelles de Fontenay <a href=\"https:\/\/www.nouvellesdefontenay.fr\/playdoyer-pour-prendre-le-temps-dune-reflexion-strategique-sur-la-geothermie\/\">d\u00e9taille cette position<\/a>.<\/p>\n\n\n\n<p><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/01\/28\/lelan-citoyen-pour-fontenay-avec-gilles-mergy\/\">Gilles Mergy<\/a> alertait sur le risque financier et d\u00e9fendait les int\u00e9r\u00eats du club de foot. Il d\u00e9fendait l\u2019id\u00e9e d\u2019un grand plan d\u2019isolation des b\u00e2timents. <a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/02\/09\/mieux-vivre-fontenay-avec-pauline-le-fur\/\">Pauline Le Fur<\/a> \u00e9tait favorable \u00e0 l\u2019id\u00e9e d\u2019utiliser la g\u00e9othermie pour r\u00e9duire les \u00e9missions de gaz \u00e0 effet de serre sous r\u00e9serve de traiter les questions pos\u00e9es par le club de foot.<\/p>\n\n\n\n<p>Lors de la r\u00e9union de pr\u00e9sentation de la liste fusionn\u00e9e, Gilles Mergy a expliqu\u00e9 que la g\u00e9othermie avait fait l\u2019objet de discussions entre les listes et qu\u2019un accord avait eu lieu pour informer les habitants d\u2019abord.<\/p>\n\n\n\n<p>La Gazette informera prochainement ses lecteurs sur les deux r\u00e9unions des 20 et 26 mai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A lire aussi<\/h2>\n\n\n\n<p>La Gazette a d\u00e9j\u00e0 plusieurs fois depuis 2022 \u00e9voqu\u00e9 ce projet qui concerne les trois villes de Fontenay-aux-Roses, Sceaux et Bourg-la-Reine&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2022\/10\/28\/geothermie-demain-a-fontenay-sceaux-et-bourg-la-reine\/\">G\u00e9othermie demain \u00e0 Fontenay, Sceaux et Bourg-la-Reine ?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2023\/10\/02\/geothermie-depuis-fontenay-aux-roses-le-projet-avance\/\">G\u00e9othermie depuis Fontenay-aux-Roses : le projet avance<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2023\/12\/05\/nouvelle-etape-pour-la-geothermie-a-fontenay-sceaux-et-bourg-la-reine\/\">Nouvelle \u00e9tape pour la g\u00e9othermie \u00e0 Fontenay, Sceaux et Bourg-la-Reine<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2023\/12\/18\/geothermie-3-communes-3-debats\/\">G\u00e9othermie : 3 communes, 3 d\u00e9bats<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2024\/12\/04\/reunion-dinformation-sur-la-geothermie-a-fontenay-aux-roses\/\">R\u00e9union d\u2019information sur la g\u00e9othermie \u00e0 Fontenay-aux-Roses<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2025\/11\/10\/ou-en-est-le-projet-geothermique-de-fontenay-sceaux-et-bourg-la-reine\/\">O\u00f9 en est le projet g\u00e9othermique de Fontenay, Sceaux et Bourg-la-Reine ?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sceaux-lagazette.fr\/index.php\/2025\/11\/26\/geothermie-avec-lunion-associative-fontenaisienne\/\">G\u00e9othermie avec l\u2019Union Associative Fontenaisienne<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Le forage des puits de g\u00e9othermie qui devraient alimenter les villes de Fontenay-aux-Roses, Sceaux et Bourg-la-Reine est en suspens. La nouvelle majorit\u00e9 \u00e9lue en mars \u00e0 Fontenay a en effet d\u00e9cid\u00e9 de prendre le temps d\u2019informer et associer les habitants de la ville. Le probl\u00e8me du site du Panorama Un&#8230;<\/p>\n","protected":false},"author":11,"featured_media":44678,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[265,258,264,270,266],"tags":[],"class_list":["post-46217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bourg-la-reine","category-environnement","category-fontenay-aux-roses","category-projets-politiques","category-sceaux","entry","simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fontenay-aux-Roses\u00a0: Le projet de g\u00e9othermie suspendu - La Gazette<\/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:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fontenay-aux-Roses\u00a0: Le projet de g\u00e9othermie suspendu - La Gazette\" \/>\n<meta property=\"og:description\" content=\"Le forage des puits de g\u00e9othermie qui devraient alimenter les villes de Fontenay-aux-Roses, Sceaux et Bourg-la-Reine est en suspens. La nouvelle majorit\u00e9 \u00e9lue en mars \u00e0 Fontenay a en effet d\u00e9cid\u00e9 de prendre le temps d\u2019informer et associer les habitants de la ville. Le probl\u00e8me du site du Panorama Un&#8230;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/\" \/>\n<meta property=\"og:site_name\" content=\"La Gazette\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-26T11:37:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-26T11:37:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sceaux-lagazette.fr\/wp-content\/uploads\/2025\/11\/GEOSUD_Perspective.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"G\u00e9rard Bardier\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"G\u00e9rard Bardier\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/\"},\"author\":{\"name\":\"G\u00e9rard Bardier\",\"@id\":\"https:\/\/sceaux-lagazette.fr\/#\/schema\/person\/5650e206a121f68c6f5e76379bccfbc4\"},\"headline\":\"Fontenay-aux-Roses\u00a0: Le projet de g\u00e9othermie suspendu\",\"datePublished\":\"2026-05-26T11:37:34+00:00\",\"dateModified\":\"2026-05-26T11:37:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/\"},\"wordCount\":1082,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/sceaux-lagazette.fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sceaux-lagazette.fr\/wp-content\/uploads\/2025\/11\/GEOSUD_Perspective.jpg\",\"articleSection\":[\"Bourg-la-Reine\",\"Environnement\",\"Fontenay-aux-Roses\",\"projets politiques\",\"Sceaux\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/\",\"url\":\"https:\/\/sceaux-lagazette.fr\/index.php\/2026\/05\/26\/fontenay-aux-roses-le-projet-de-geothermie-suspendu\/\",\"name\":\"Fontenay-aux-Roses\u00a0: Le projet de g\u00e9othermie suspendu - 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