{"id":9158,"date":"2026-07-24T12:32:12","date_gmt":"2026-07-24T09:32:12","guid":{"rendered":"https:\/\/axinar.com\/blog\/hot-water-photovoltaic-off-grid"},"modified":"2026-07-24T12:32:12","modified_gmt":"2026-07-24T09:32:12","slug":"hot-water-photovoltaic-off-grid","status":"publish","type":"post","link":"https:\/\/axinar.com\/fr\/blog\/hot-water-photovoltaic-off-grid","title":{"rendered":"Eau chaude photovolta\u00efque hors r\u00e9seau : fonctionnement et \u00e9quipements n\u00e9cessaires"},"content":{"rendered":"<p>Maison de vacances en Chalcidique sans raccordement au r\u00e9seau. Une exploitation en Thessalie utilis\u00e9e 5 \u00e0 6 mois par an. Un conteneur, un chalet ou un refuge de montagne. Dans tous ces cas, le probl\u00e8me est clair : comment obtenir de l\u2019eau chaude sans \u00e9lectricit\u00e9 du r\u00e9seau ? Un chauffe-eau solaire \u00e0 r\u00e9sistance int\u00e9gr\u00e9e ne sert \u00e0 rien, car la r\u00e9sistance n\u2019est pas aliment\u00e9e.<\/p>\n<p>Les options sont moins nombreuses qu\u2019on ne le croit, mais claires.<\/p>\n<h2>Option 1 : chauffe-eau solaire en circuit ferm\u00e9, sans r\u00e9sistance<\/h2>\n<p>Le choix le plus simple. Un syst\u00e8me solaire \u00e0 circulation indirecte, ballon en inox 316 et sans r\u00e9sistance d\u2019appoint.<\/p>\n<ul>\n<li><strong>Avantages :<\/strong> aucun composant \u00e9lectrique, consommation nulle<\/li>\n<li><strong>Inconv\u00e9nients :<\/strong> de l\u2019eau chaude uniquement quand il y a du soleil. Les jours nuageux d\u2019hiver, pas d\u2019eau chaude. En cas de gel en montagne, risque de rupture des tuyaux sans antigel.<\/li>\n<li><strong>Convient \u00e0 :<\/strong> maisons de vacances, \u00eeles, pr\u00e9fectures de basse altitude.<\/li>\n<\/ul>\n<h2>Option 2 (recommand\u00e9e) : <a href=\"https:\/\/axinar.com\/en\/solbox-info\">AXINAR SolBox<\/a>, Panneau PV + chauffe-eau<\/h2>\n<p>C\u2019est la solution la plus pratique pour l\u2019eau chaude hors r\u00e9seau. Le <a href=\"https:\/\/axinar.com\/en\/solbox-info\"><strong>AXINAR SolBox<\/strong><\/a> est un r\u00e9gulateur DC con\u00e7u exactement pour cela : un ou deux panneaux PV se raccordent directement au SolBox, qui alimente la r\u00e9sistance d\u2019un chauffe-eau classique de 60\/80\/100 litres. <strong>Ni batteries, ni onduleur, ni raccordement au r\u00e9seau.<\/strong><\/p>\n<h3>Comment cela fonctionne techniquement<\/h3>\n<p>Le panneau produit du courant continu (environ 24 \u00e0 40 V) quand il y a du soleil. Le r\u00e9gulateur prend ce courant et l\u2019envoie \u00e0 la r\u00e9sistance du chauffe-eau. La r\u00e9sistance est une charge ohmique : peu lui importe de recevoir du continu plut\u00f4t que de l\u2019alternatif (le continu est m\u00eame plus stable). L\u2019eau chauffe lentement toute la journ\u00e9e, atteint 60 \u00e0 70 \u00b0C en soir\u00e9e, et le ballon conserve la temp\u00e9rature gr\u00e2ce \u00e0 son isolation.<\/p>\n<h3>Avantages<\/h3>\n<ul>\n<li>Aucune plomberie en toiture (aucun risque de fuite)<\/li>\n<li>Ni antigel, ni entretien de capteurs<\/li>\n<li>Ni batteries, ni onduleur<\/li>\n<li>Fonctionne par temps nuageux (puissance r\u00e9duite, mais chauffe toujours)<\/li>\n<li>Si vous avez d\u00e9j\u00e0 un chauffe-eau \u00e9lectrique, vous le gardez<\/li>\n<\/ul>\n<h3>Inconv\u00e9nients<\/h3>\n<ul>\n<li>Si l\u2019eau chaude s\u2019\u00e9puise le soir, il faut attendre le lendemain matin<\/li>\n<li>Les maisons occup\u00e9es en continu ont besoin d\u2019un appoint<\/li>\n<\/ul>\n<h2>Option 3 : PV + onduleur + batteries + chauffe-eau \u00e9lectrique<\/h2>\n<p>Un syst\u00e8me hors r\u00e9seau complet avec batteries. Cela a du sens si le b\u00e2timent dispose d\u00e9j\u00e0 d\u2019une installation PV hors r\u00e9seau pour son \u00e9lectrification.<\/p>\n<ul>\n<li><strong>Avantages :<\/strong> de l\u2019eau chaude \u00e0 tout moment, ind\u00e9pendamment du soleil instantan\u00e9<\/li>\n<li><strong>Inconv\u00e9nients :<\/strong> co\u00fbt des batteries, complexit\u00e9 d\u2019installation, vieillissement des batteries (5 \u00e0 10 ans)<\/li>\n<li><strong>Convient \u00e0 :<\/strong> des maisons hors r\u00e9seau occup\u00e9es en permanence, o\u00f9 le co\u00fbt du syst\u00e8me est de toute fa\u00e7on engag\u00e9<\/li>\n<\/ul>\n<h2>Option 4 : ballon d\u2019eau chaude au bois (appoint seulement)<\/h2>\n<p>Une chaudi\u00e8re \u00e0 bois avec ballon d\u2019eau chaude sanitaire, utilis\u00e9e seulement en hiver. Sert d\u2019appoint quand le soleil ne suffit pas.<\/p>\n<h2>Comparatif pour une maison de vacances type<\/h2>\n<table>\n<thead>\n<tr>\n<th>Solution<\/th>\n<th>Co\u00fbt initial<\/th>\n<th>Entretien<\/th>\n<th>Fiabilit\u00e9 par temps nuageux<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Solaire sans r\u00e9sistance<\/td>\n<td>Faible<\/td>\n<td>Moyen (antigel)<\/td>\n<td>Z\u00e9ro<\/td>\n<\/tr>\n<tr>\n<td><strong>PV + AXINAR SolBox + chauffe-eau<\/strong><\/td>\n<td><strong>Faible \u00e0 moyen<\/strong><\/td>\n<td><strong>Minimal<\/strong><\/td>\n<td><strong>Moyen<\/strong><\/td>\n<\/tr>\n<tr>\n<td>PV + onduleur + batteries<\/td>\n<td>\u00c9lev\u00e9<\/td>\n<td>Moyen (batteries)<\/td>\n<td>\u00c9lev\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Pi\u00e8ges \u00e0 \u00e9viter<\/h2>\n<ul>\n<li><strong>Ne raccordez pas un r\u00e9gulateur r\u00e9seau (AC) \u00e0 une installation PV hors r\u00e9seau :<\/strong> un r\u00e9gulateur r\u00e9seau a besoin d\u2019un 230 V alternatif stable pour fonctionner. Hors r\u00e9seau, le panneau fournit un courant continu variable. Il vous faut un r\u00e9gulateur d\u00e9di\u00e9 DC comme le <a href=\"https:\/\/axinar.com\/en\/solbox-info\">AXINAR SolBox<\/a>.<\/li>\n<li><strong>Ne placez pas le panneau du c\u00f4t\u00e9 ombrag\u00e9 :<\/strong> m\u00eame un ombrage partiel fait chuter fortement la production. Un horizon sud d\u00e9gag\u00e9 est d\u00e9terminant.<\/li>\n<li><strong>Attention au format de t\u00f4le :<\/strong> un panneau de 300 \u00e0 400 W chauffe 60 l en 4 \u00e0 5 heures de soleil. Pour les chauffe-eau plus grands, il en faut 2.<\/li>\n<\/ul>\n<div style=\"border:1px solid rgba(221,43,28,.28);border-radius:10px;padding:22px;margin:26px 0;background:rgba(255,255,255,.02);\">\n<div style=\"margin-bottom:14px;\">\n<div style=\"font-family:'Barlow Condensed', sans-serif;font-size:1.35rem;font-weight:700;line-height:1.15;margin-bottom:2px;color:#ffffff;\">AXINAR SolBox hors r\u00e9seau<\/div>\n<div style=\"opacity:.85;font-size:.92rem;color:#ffffff;\">Eau chaude sans \u00e9lectricit\u00e9 du r\u00e9seau, sans batteries<\/div>\n<\/p><\/div>\n<div>\n<p style=\"margin:0 0 12px 0;line-height:1.55;color:#ffffff;\">SolBox est con\u00e7u pour les maisons de vacances, les exploitations agricoles et les b\u00e2timents autonomes sans r\u00e9seau ou avec un r\u00e9seau instable. Courant continu direct du panneau au chauffe-eau.<\/p>\n<ul style=\"margin:0 0 14px 0;padding-left:20px;color:#ffffff;\">\n<li style=\"margin-bottom:6px;\">Version familiale pour un usage continu de 3 \u00e0 4 personnes<\/li>\n<li style=\"margin-bottom:6px;\">Version Pro pour charges plus importantes \/ ballons de 200 l<\/li>\n<li style=\"margin-bottom:6px;\">Aucune d\u00e9pendance au r\u00e9seau ni \u00e0 l\u2019onduleur<\/li>\n<li style=\"margin-bottom:6px;\">\u00c9valuation gratuite de l\u2019installation<\/li>\n<\/ul>\n<p>    <a href=\"https:\/\/axinar.com\/en\/solbox-info\" style=\"display:inline-block !important;background:#dd2b1c !important;color:#ffffff !important;font-family:Barlow Condensed, sans-serif !important;font-size:.9rem !important;font-weight:700 !important;text-transform:uppercase !important;letter-spacing:1.2px !important;padding:10px 22px !important;border-radius:6px !important;text-decoration:none !important;margin-top:10px;\">Obtenir une estimation \u2192<\/a>\n  <\/div>\n<\/div>\n<h2>Demander un devis<\/h2>\n<p>Envoyez-nous le lieu, le type de chauffe-eau (s\u2019il y en a un) et une estimation de la consommation. Nous r\u00e9pondons sous 24 heures avec une proposition d\u2019\u00e9quipement et d\u2019installation.<\/p>\n<p><a href=\"https:\/\/axinar.com\/fr\/contact\" style=\"display:inline-block !important;background:#dd2b1c !important;color:#ffffff !important;font-family:Barlow Condensed, sans-serif !important;font-size:1rem !important;font-weight:700 !important;text-transform:uppercase !important;letter-spacing:1.5px !important;padding:12px 28px !important;border-radius:8px !important;text-decoration:none !important;margin-top:8px;\">Nous contacter \u2192<\/a><\/p>\n<hr>\n<p><em>\u00c0 voir aussi : <a href=\"https:\/\/axinar.com\/fr\/blog\/convert-electric-water-heater-to-solar-solbox\">SolBox : le guide complet pour convertir un chauffe-eau \u00e9lectrique au solaire<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Maison de vacances en Chalcidique sans raccordement au r\u00e9seau. Une exploitation en Thessalie utilis\u00e9e 5 \u00e0 6 mois par an. [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":3595,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","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":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"rank_math_title":"Eau chaude PV hors r\u00e9seau : le guide sans raccordement | AXINAR","rank_math_description":"Comment obtenir de l\u2019eau chaude photovolta\u00efque sans raccordement au r\u00e9seau, pour les maisons de vacances, les exploitations ou les b\u00e2timents hors r\u00e9seau. \u00c9quipements n\u00e9cessaires, solutions sans batteries.","footnotes":""},"categories":[381,167],"tags":[],"class_list":["post-9158","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/posts\/9158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/comments?post=9158"}],"version-history":[{"count":0,"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/posts\/9158\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/media\/3595"}],"wp:attachment":[{"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/media?parent=9158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/categories?post=9158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/axinar.com\/fr\/wp-json\/wp\/v2\/tags?post=9158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}