{"id":47987,"date":"2025-05-16T09:41:41","date_gmt":"2025-05-16T08:41:41","guid":{"rendered":"https:\/\/ecoforest.com\/nouvelles\/installation-geothermique-dans-les-logements-guide-complet-2025-pour-lespagne-le-portugal-et-litalie\/"},"modified":"2025-05-16T09:41:42","modified_gmt":"2025-05-16T08:41:42","slug":"installation-geothermique-dans-les-logements-guide-complet-2025-pour-lespagne-le-portugal-et-litalie","status":"publish","type":"post","link":"https:\/\/ecoforest.com\/fr\/nouvelles\/installation-geothermique-dans-les-logements-guide-complet-2025-pour-lespagne-le-portugal-et-litalie\/","title":{"rendered":"Installation g\u00e9othermique dans les logements : guide complet 2025 pour l&rsquo;Espagne, le Portugal et l&rsquo;Italie"},"content":{"rendered":"\n<p>La g\u00e9othermie s&rsquo;impose comme la solution leader en mati\u00e8re de climatisation durable pour les maisons individuelles et les immeubles r\u00e9sidentiels en Europe m\u00e9ridionale. Ce syst\u00e8me, qui exploite la temp\u00e9rature stable du sous-sol, offre des rendements \u00e9nerg\u00e9tiques de 400 \u00e0 500 % et r\u00e9duit les \u00e9missions de CO\u2082 jusqu&rsquo;\u00e0 80 % par rapport aux syst\u00e8mes conventionnels. Dans ce guide, nous analysons les aspects techniques, r\u00e9glementaires et \u00e9conomiques cl\u00e9s pour les installations en Espagne, au Portugal et en Italie, des march\u00e9s b\u00e9n\u00e9ficiant de conditions g\u00e9ologiques optimales et de cadres r\u00e9glementaires en pleine \u00e9volution.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"tipos-de-captacin-geotrmica-horizontal-vs-vertical\">Types de captage g\u00e9othermique : horizontal vs vertical<\/h2>\n\n<h2 class=\"wp-block-heading\">Captage vertical<\/h2>\n\n<p>Recommand\u00e9 pour les terrains limit\u00e9s, il n\u00e9cessite des forages de 50 \u00e0 150 m de profondeur o\u00f9 la temp\u00e9rature reste stable entre 10 et 15 \u00b0C dans la p\u00e9ninsule ib\u00e9rique et entre 12 et 18 \u00b0C dans le nord de l&rsquo;<a href=\"http:\/\/ecoforest.it\/\" rel=\"nofollow noopener\" target=\"_blank\">Italie<\/a>.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><b>Avantages<\/b> : plus grande efficacit\u00e9 (COP 4,5-5,2), surface requise r\u00e9duite, dur\u00e9e de vie &gt; 50 ans<\/li>\n\n\n\n<li><b>Co\u00fbt<\/b> : 70-120 \u20ac\/m lin\u00e9aire en Espagne, 85-130 \u20ac\/m en Italie, \u00e9tudes g\u00e9otechniques comprises.<br\/><br\/>Exemple : maison \u00e0 Madrid (120 m\u00b2) avec 2 forages de 100 m : 18 000-21 000 \u20ac.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Captage horizontal<\/h2>\n\n<p>Id\u00e9al pour les grands terrains, avec des tranch\u00e9es de 1,5 \u00e0 2 m de profondeur.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><b>Efficacit\u00e9<\/b> : COP 3,8-4,3, sensible aux variations saisonni\u00e8res.<\/li>\n\n\n\n<li><b>Co\u00fbt<\/b> : 30-50 \u20ac\/m\u00b2 au Portugal, 40-60 \u20ac\/m\u00b2 dans les zones alpines italiennes.<br\/><br\/>Exemple : maison \u00e0 Porto (200 m\u00b2) n\u00e9cessitant 600 m\u00b2 de terrain : 18 000-24 000 \u20ac.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"requisitos-previos-estudios-geolgicos-y-normativas\">Conditions pr\u00e9alables : \u00e9tudes g\u00e9ologiques et r\u00e9glementations<\/h2>\n\n<h2 class=\"wp-block-heading\">\u00c9tudes obligatoires<\/h2>\n\n<ol class=\"wp-block-list\">\n<li><b>Sondage exploratoire<\/b> : d\u00e9termine la conductivit\u00e9 thermique du sol (2 500-3 500 \u20ac en Espagne).<\/li>\n\n\n\n<li><b>Analyse hydrog\u00e9ologique<\/b> : essentielle dans les captages ouverts pour \u00e9valuer le d\u00e9bit des aquif\u00e8res (requise en Lombardie et en V\u00e9n\u00e9tie, Italie).<\/li>\n\n\n\n<li><b>Autorisations administratives<\/b> :\n<ul class=\"wp-block-list\">\n<li>Espagne : d\u00e9claration responsable LD24.3 \u00e0 Alcobendas.<\/li>\n\n\n\n<li>Portugal : licence DGEG pour les installations &gt; 10 kW.<\/li>\n\n\n\n<li>Italie : autorisation r\u00e9gionale + rapport d&rsquo;impact paysager dans les zones prot\u00e9g\u00e9es.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\" id=\"proceso-de-instalacin-paso-a-paso\">Processus d&rsquo;installation \u00e9tape par \u00e9tape<\/h2>\n\n<ol class=\"wp-block-list\">\n<li><b>Conception du syst\u00e8me<\/b> : calcul de la charge thermique (50-70 W\/m\u00b2 en climat m\u00e9diterran\u00e9en).<\/li>\n\n\n\n<li><b>R\u00e9alisation du captage<\/b>\n<ul class=\"wp-block-list\">\n<li>Verticale : forage avec sonde en U en poly\u00e9thyl\u00e8ne (diam\u00e8tre 140-160 mm).<\/li>\n\n\n\n<li>Horizontale : tranch\u00e9es avec tuyaux en spirale ou serpentins.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><b>Installation de la <\/b><a href=\"https:\/\/ecoforest.com\/fr\/pompe-chaleur\/geothermie\/\"><b>pompe \u00e0 chaleur<\/b><\/a> : \u00e9quipements inverter de 6-15 kW pour des logements de 100-300 m\u00b2.<\/li>\n\n\n\n<li><b>Raccordement aux \u00e9metteurs<\/b> : privil\u00e9gier le plancher chauffant (35-40 \u00b0C en hiver) ou les radiateurs basse temp\u00e9rature.<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\" id=\"tiempos-de-instalacin-y-aspectos-legales\">D\u00e9lais d&rsquo;installation et aspects juridiques<\/h2>\n\n<h2 class=\"wp-block-heading\">D\u00e9lais estim\u00e9s<\/h2>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Processus<\/th><th>Espagne\/Portugal<\/th><th>Italie<\/th><\/tr><\/thead><tbody><tr><td>\u00c9tude g\u00e9otechnique<\/td><td>2-3 semaines<\/td><td>3-4 semaines<\/td><\/tr><tr><td>Forage vertical<\/td><td>5-7 jours<\/td><td>7-10 jours<\/td><\/tr><tr><td>Installation compl\u00e8te<\/td><td>3-4 semaines<\/td><td>4-6 semaines<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Cadre juridique transfrontalier<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><b>Espagne<\/b> : RD 178\/2025 sur le stockage d&rsquo;\u00e9nergie applicable aux syst\u00e8mes hybrides<a href=\"https:\/\/geotermiaonline.com\/14152\/tenerife-pide-a-moncloa-regular-la-energia-geotermica\/\" rel=\"nofollow noopener\" target=\"_blank\">7<\/a><a href=\"https:\/\/energiaestrategica.es\/portugal-agiliza-tramitaciones-almacenamiento\/\" rel=\"nofollow noopener\" target=\"_blank\">9<\/a>.<\/li>\n\n\n\n<li><b>Portugal<\/b> : Le d\u00e9cret-loi 15\/2022 acc\u00e9l\u00e8re l&rsquo;octroi des licences pour la g\u00e9othermie dans les b\u00e2timents existants<a href=\"https:\/\/energiaestrategica.es\/portugal-agiliza-tramitaciones-almacenamiento\/\" rel=\"nofollow noopener\" target=\"_blank\">9<\/a><a href=\"https:\/\/www.piensageotermia.com\/se-establece-una-nueva-gran-red-de-calefaccion-de-distrito-geotermica-en-chaves-portugal\/\" rel=\"nofollow noopener\" target=\"_blank\">15<\/a>.<\/li>\n\n\n\n<li><b>Italie<\/b> : Incitations de 65 % dans le cadre de l&rsquo;\u00ab Ecobonus \u00bb pour les r\u00e9novations avec g\u00e9othermie<a href=\"https:\/\/geotermiaonline.com\/1713\/369-municipios-italianos-disponen-de-equipamientos-geotermicos\/\" rel=\"nofollow noopener\" target=\"_blank\">16<\/a>.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"costes-detallados-por-metro-cuadrado\">Co\u00fbts d\u00e9taill\u00e9s par m\u00e8tre carr\u00e9<\/h2>\n\n<h2 class=\"wp-block-heading\">Tableau comparatif 2025 (TVA non comprise)<\/h2>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Pays<\/th><th>Captage vertical<\/th><th>Captage horizontal<\/th><th>Avec plancher chauffant<\/th><\/tr><\/thead><tbody><tr><td>Espagne<\/td><td>142-178 \u20ac\/m\u00b2<\/td><td>110-135 \u20ac\/m\u00b2<\/td><td>+28%<\/td><\/tr><tr><td>Portugal<\/td><td>130-160 \u20ac\/m\u00b2<\/td><td>95-120 \u20ac\/m\u00b2<\/td><td>+25%<\/td><\/tr><tr><td>Italie<\/td><td>150-190 \u20ac\/m\u00b2<\/td><td>115-145 \u20ac\/m\u00b2<\/td><td>+30%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p>Exemple pratique:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><b>Maison \u00e0 Lisbonne (150 m\u00b2)<\/b>:\n<ul class=\"wp-block-list\">\n<li>Captation verticale + plancher chauffant : 24 750 \u20ac<\/li>\n\n\n\n<li>Subvention PT 2025 : -6 200 \u20ac<\/li>\n\n\n\n<li>Amortissement : 6,8 ans<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"casos-prcticos-en-diferentes-tipologas\">Cas pratiques dans diff\u00e9rentes typologies<\/h2>\n\n<h2 class=\"wp-block-heading\">1. R\u00e9novation d&rsquo;un b\u00e2timent historique (S\u00e9ville, Espagne)<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><b>D\u00e9fi<\/b> : contraintes structurelles pour les perforations.<\/li>\n\n\n\n<li><b>Solution<\/b> : captage horizontal dans un jardin de 400 m\u00b2 + pompe \u00e0 chaleur de 9 kW.<\/li>\n\n\n\n<li><b>R\u00e9sultat<\/b> : \u00e9conomie de 68 % sur la climatisation (de 2 800 \u20ac\/an \u00e0 900 \u20ac)<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">2. Maison individuelle alpine (Trentin, Italie)<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><b>Conditions<\/b>: temp\u00e9ratures ext\u00e9rieures jusqu&rsquo;\u00e0 -15 \u00b0C.<\/li>\n\n\n\n<li><b>Syst\u00e8me<\/b>: 3 sondes verticales de 180 m + chauffage par plancher radiant.<\/li>\n\n\n\n<li><b>Efficacit\u00e9<\/b>: COP 4,8 m\u00eame \u00e0 -10 \u00b0C.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">3. Lotissement \u00e0 Porto (Portugal)<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><b>\u00c9chelle<\/b>: 20 logements avec r\u00e9seau g\u00e9othermique communautaire.<\/li>\n\n\n\n<li><b>Technologie<\/b>: captage ouvert dans un aquif\u00e8re \u00e0 12 \u00b0C constants.<\/li>\n\n\n\n<li><b>Avantages<\/b>: co\u00fbt partag\u00e9 r\u00e9duit \u00e0 8 500 \u20ac par logement.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"tendencias-2025-y-recomendaciones\">Tendances 2025 et recommandations<\/h2>\n\n<ol class=\"wp-block-list\">\n<li><b>Hybride avec photovolta\u00efque<\/b> : des syst\u00e8mes tels que Ecoforest Geo+Solar permettent d&rsquo;atteindre une autonomie de 85 %.<\/li>\n\n\n\n<li><b>Refroidissement actif<\/b>: des pompes \u00e0 chaleur r\u00e9versibles permettent une climatisation int\u00e9grale.<\/li>\n\n\n\n<li><b>Surveillance IoT<\/b> : des capteurs de performance en temps r\u00e9el optimisent le COP.<\/li>\n<\/ol>\n\n<p>Pour les projets en Italie, pensez au \u00ab Superbonus 110 % \u00bb pour les installations combin\u00e9es \u00e0 haute efficacit\u00e9 \u00e9nerg\u00e9tique. Au Portugal, le Fonds pour l&rsquo;environnement finance jusqu&rsquo;\u00e0 30 % des projets communautaires. La g\u00e9othermie s&rsquo;impose ainsi comme un investissement cl\u00e9 dans la transition \u00e9nerg\u00e9tique r\u00e9sidentielle en Europe du Sud.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La g\u00e9othermie s&rsquo;impose comme la solution leader en mati\u00e8re de climatisation durable pour les maisons individuelles et les immeubles r\u00e9sidentiels en Europe m\u00e9ridionale. Ce syst\u00e8me, qui exploite la temp\u00e9rature stable du sous-sol, offre des rendements \u00e9nerg\u00e9tiques de 400 \u00e0 500 % et r\u00e9duit les \u00e9missions de CO\u2082 jusqu&rsquo;\u00e0 80 % par rapport aux syst\u00e8mes conventionnels. [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":46449,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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