{"id":6994,"date":"2023-03-13T21:22:37","date_gmt":"2023-03-13T20:22:37","guid":{"rendered":"https:\/\/www.sunstyle.com\/?post_type=sun_perspectives&#038;p=6994"},"modified":"2023-03-13T22:06:34","modified_gmt":"2023-03-13T21:06:34","slug":"quelle-efficacite-installation-solaire","status":"publish","type":"sun_perspectives","link":"https:\/\/www.sunstyle.com\/fr\/perspectives\/quelle-efficacite-installation-solaire\/","title":{"rendered":"Quelle est l\u2019efficacit\u00e9 d\u2019une installation solaire ?"},"content":{"rendered":"[vc_row type=\u00a0\u00bbfull_width_background\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bg_color=\u00a0\u00bb#000000&Prime; scene_position=\u00a0\u00bbcenter\u00a0\u00bb top_padding=\u00a0\u00bb50&Prime; bottom_padding=\u00a0\u00bb100&Prime; bottom_padding_phone=\u00a0\u00bb50&Prime; text_color=\u00a0\u00bbcustom\u00a0\u00bb custom_text_color=\u00a0\u00bb#ffd200&Prime; text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb enable_shape_divider=\u00a0\u00bbtrue\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb shape_divider_height=\u00a0\u00bb100&Prime; bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb shape_type=\u00a0\u00bbtilt_alt\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]On mesure g\u00e9n\u00e9ralement l\u2019efficacit\u00e9 d\u2019une installation solaire par son rendement, c\u2019est-\u00e0-dire le rapport entre l\u2019\u00e9nergie produite et la puissance du rayonnement capt\u00e9.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb top_padding=\u00a0\u00bb50&Prime; text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb shape_type=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p style=\"text-align: justify;\">En effet, les cellules solaires captent les rayons du soleil pour les transformer en \u00e9lectricit\u00e9, mais il y a des d\u00e9perditions lors de cette conversion. On mesure donc la part d\u2019\u00e9nergie que l\u2019on pourra r\u00e9ellement consommer sous forme d\u2019\u00e9lectricit\u00e9, une fois que la transformation est termin\u00e9e.<\/p>\n<h2 style=\"text-align: left;\"><span style=\"color: #ff6400;\">C\u2019est une mesure th\u00e9orique car le rendement d\u2019une installation solaire d\u00e9pend de nombreux param\u00e8tres :<\/span><\/h2>\n<ul>\n<li style=\"text-align: justify;\" aria-level=\"1\">La technologie utilis\u00e9e : panneaux monocristallins, polycristallins ou amorphes ;<\/li>\n<li style=\"text-align: justify;\" aria-level=\"1\">La puissance des installations solaires ;<\/li>\n<li style=\"text-align: justify;\" aria-level=\"1\">L\u2019orientation de l\u2019installation ;<\/li>\n<li style=\"text-align: justify;\" aria-level=\"1\">L\u2019inclinaison des panneaux ou toits solaires ;<\/li>\n<li style=\"text-align: justify;\" aria-level=\"1\">La zone g\u00e9ographique : le niveau d\u2019ensoleillement n\u2019est pas \u00e9gal partout. N\u00e9anmoins, cela ne signifie pas que seuls ceux qui vivent dans des r\u00e9gions ensoleill\u00e9es peuvent obtenir un bon rendement ;<\/li>\n<li style=\"text-align: justify;\" aria-level=\"1\">La surface de l\u2019installation;<\/li>\n<li style=\"text-align: justify;\" aria-level=\"1\">Les ombrages \u00e9ventuels (arbres, b\u00e2timents \u00e0 proximit\u00e9, etc.) ;<\/li>\n<\/ul>\n[\/vc_column_text][vc_column_text]\n<h3><span style=\"color: #ff6400;\">Qu&rsquo;est-ce qui peut nuire \u00e0 l&rsquo;efficacit\u00e9 de l&rsquo;installation solaire ?<\/span><\/h3>\n[\/vc_column_text][vc_column_text]\n<p style=\"text-align: justify;\">Une des nuisances les plus fr\u00e9quentes est la salet\u00e9 qui reste sur la surface des panneaux photovolta\u00efques. Poussi\u00e8re, pollution, sable, d\u00e9jections d\u2019oiseaux : la pluie suffit g\u00e9n\u00e9ralement, mais parfois, un nettoyage suppl\u00e9mentaire est n\u00e9cessaire. En revanche, la neige qui stagne sur les panneaux emp\u00eache totalement la production d\u2019\u00e9lectricit\u00e9. Contrairement aux panneaux solaires, les tuiles photovolta\u00efques SunStyle n\u2019ont pas de cadre, ce qui, non seulement favorise l\u2019esth\u00e9tique, mais aussi le nettoyage naturel des tuiles par l\u2019eau de pluie. En l\u2019absence de pare-neige ou de crochets, la neige s\u2019\u00e9vacue tr\u00e8s rapidement ce qui permet d\u2019augmenter la production d\u2019\u00e9nergie tr\u00e8s utile en hiver. La toiture solaire SunStyle n\u2019exige quasiment aucun entretien.<\/p>\n<p style=\"text-align: justify;\">Une baisse de rendement peut parfois s&rsquo;expliquer par un ombrage sur la surface de votre toit. C\u2019est par exemple le cas si des branches d\u2019arbres ont pouss\u00e9 depuis la pose de l\u2019installation. C\u2019est un \u00e9l\u00e9ment \u00e0 v\u00e9rifier r\u00e9guli\u00e8rement.<\/p>\n<p style=\"text-align: justify;\">Une p\u00e9riode de chaleur trop forte peut \u00e9galement affecter le rendement de l\u2019installation photovolta\u00efque. Aucune action \u00e0 mener dans ce cas, la baisse des temp\u00e9ratures ext\u00e9rieures r\u00e9tablira le niveau de rendement.<\/p>\n[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb6999&Prime; image_size=\u00a0\u00bblarge\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbNone\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb50&Prime;][vc_column_text]\n<h3><span style=\"color: #ff6400;\">Quel est le rendement d&rsquo;une installation solaire ?<\/span><\/h3>\n[\/vc_column_text][vc_column_text]\n<p style=\"text-align: justify;\">On l\u2019a dit en introduction, le rendement d\u2019une installation photovolta\u00efque correspond \u00e0 la quantit\u00e9 d\u2019\u00e9lectricit\u00e9 produite par le panneau solaire par rapport \u00e0 l\u2019\u00e9nergie solaire re\u00e7ue.<\/p>\n<p style=\"text-align: justify;\">On le calcule \u00e0 l\u2019aide de la formule suivante :<\/p>\n<p style=\"text-align: justify;\">Rendement = (puissance \u00e9lectrique produite \/ puissance solaire re\u00e7ue) * 100<\/p>\n<p style=\"text-align: justify;\">Le rendement d\u2019un panneau s\u2019exprime en pourcentage.<\/p>\n<p style=\"text-align: justify;\">La puissance \u00e9lectrique produite s\u2019exprime en watt-cr\u00eate.<\/p>\n<p style=\"text-align: justify;\">La puissance solaire re\u00e7ue correspond \u00e0 la surface en m<sup>2<\/sup> multipli\u00e9e par 1000 (Le rayonnement solaire est compris entre 1000 et 1500 kWh par me\u0300tre carre\u0301 par an selon les r\u00e9gions &#8211; environ 1100 kWh\/m2 pour Berne- nous prenons 1000 pour simplifier ce calcul).<\/p>\n<p style=\"text-align: justify;\">Par exemple, si un panneau solaire polycristallin a une puissance \u00e9lectrique de 250 Wc et une surface de 1,6 m<sup>2<\/sup>, son rendement est de : 250\/(1,6 x 1000) = 15,62 %.<\/p>\n<p style=\"text-align: justify;\">Le taux de rendement d\u2019un panneau solaire varie selon la qualit\u00e9 de construction du panneau (largeur des bords, densit\u00e9 des cellules dans les modules, etc.) et la technologie utilis\u00e9e. Pour deux panneaux solaires de m\u00eame superficie, le panneau solaire au rendement le plus \u00e9lev\u00e9 convertira donc plus d\u2019\u00e9nergie solaire en \u00e9lectricit\u00e9. Par cons\u00e9quent, un rendement \u00e9lev\u00e9 est surtout int\u00e9ressant dans le cas d\u2019un toit o\u00f9 il n\u2019y a pas beaucoup de place pour poser des panneaux.<\/p>\n<div id=\"gtx-trans\" style=\"position: absolute; left: 772px; top: 281px;\">\n<div class=\"gtx-trans-icon\"><\/div>\n<\/div>\n[\/vc_column_text][vc_column_text]\n<h3><span style=\"color: #ff6400;\">Le rendement au m<sup>2<\/sup> est-il un indicateur pertinent ?<\/span><\/h3>\n<div id=\"gtx-trans\" style=\"position: absolute; left: 176px; top: 44.3854px;\">\n<div class=\"gtx-trans-icon\"><\/div>\n<\/div>\n[\/vc_column_text][vc_column_text]\n<p style=\"text-align: justify;\">\u00c0 l\u2019inverse des panneaux solaires, un toit solaire dispose de beaucoup plus de surface utile.<\/p>\n<p style=\"text-align: justify;\">L\u00e0 o\u00f9 les panneaux photovolta\u00efques ne peuvent \u00eatre pos\u00e9s que sur des surfaces de tuiles sans aucun obstacle (tel que fen\u00eatre de toit, a\u00e9ration, chemin\u00e9e, etc\u2026), les tuiles solaires entourent facilement ces obstacles et optimisent ainsi la surface utile de toit. De ce fait, m\u00eame avec un rendement au m<sup>2<\/sup> l\u00e9g\u00e8rement inf\u00e9rieur, un toit solaire exploite toujours bien plus de surface que de simples panneaux photovolta\u00efques et produit math\u00e9matiquement une quantit\u00e9 nettement sup\u00e9rieure d\u2019\u00e9nergie.<\/p>\n[\/vc_column_text][vc_column_text]\n<h3><span style=\"color: #ff6400;\">Quelles sont les valeurs standard de rendement sur le march\u00e9 ?<\/span><\/h3>\n[\/vc_column_text][vc_column_text]\n<p style=\"text-align: justify;\">Le rendement des cellules photovolta\u00efques est limit\u00e9 car celles-ci n\u2019absorbent pas toute l\u2019\u00e9nergie du Soleil. Les cellules photovolta\u00efques int\u00e8grent un semi-conducteur, principalement du silicium, au sein duquel ont lieu les r\u00e9actions requises pour produire un courant \u00e9lectrique. La lumi\u00e8re du soleil est compos\u00e9e d&rsquo;une multitude de longueurs d&rsquo;onde diff\u00e9rentes, et donc de photons transportant des quantit\u00e9s variables d&rsquo;\u00e9nergie. Dans le semi-conducteur, une partie d&rsquo;entre eux ne parvient pas \u00e0 exciter les \u00e9lectrons, tandis qu&rsquo;une autre part fournit de l&rsquo;\u00e9nergie en quantit\u00e9 plus que n\u00e9cessaire. On \u00e9tablit que les cellules photovolta\u00efques ont un rendement limit\u00e9 car elles ne profitent pas de l\u2019int\u00e9gralit\u00e9 de l&rsquo;\u00e9nergie transmise par le soleil.<\/p>\n<p style=\"text-align: justify;\">Puissances moyennes observ\u00e9es en fonction du type d\u2019installation :<\/p>\n<ul style=\"text-align: justify;\">\n<li aria-level=\"1\">Des panneaux solaires au <b>silicium amorphe<\/b>, ont un rendement assez faible, g\u00e9n\u00e9ralement compris entre 6 et 9 %.<\/li>\n<li aria-level=\"1\">Les panneaux <b>polycristallins<\/b> ont un rendement situ\u00e9 entre 13 % et 18 %. C\u2019est le type de panneaux solaires le plus couramment utilis\u00e9.<\/li>\n<li aria-level=\"1\">Les panneaux <b>monocristallins<\/b>, ils affichent les meilleures performances du march\u00e9 avec des rendements pouvant aller jusqu\u2019\u00e0 24 %<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">SunStyle utilise du silicium monocristallin PERC haute performance. Nos tuiles solaires sont plus petites que les panneaux solaires traditionnels, elles peuvent donc couvrir une plus grande surface de votre toit et g\u00e9n\u00e9rer une plus grande quantit\u00e9 d\u2019\u00e9nergie.<\/p>\n<p style=\"text-align: justify;\">Un panneau solaire mesure en moyenne 2 m<sup>2<\/sup>. Si son rendement est de 18 %, il transforme 18 % de l\u2019\u00e9nergie solaire en \u00e9nergie \u00e9lectrique. Si l\u2019\u00e9nergie re\u00e7ue est de 1000 W\/m2, le panneau produit :<\/p>\n<p style=\"text-align: justify;\">18 % x 2 x 1000 = 360 Wc par panneau. Pour obtenir une installation de 3 kWc (ce qui est commun\u00e9ment conseill\u00e9 pour une maison de 100m<sup>2<\/sup>) il faudrait donc 9 panneaux solaires.<\/p>\n[\/vc_column_text][vc_column_text]\n<p style=\"text-align: justify;\">Alors, quelle surface de toit solaire me faudrait-il pour couvrir les besoins de ma maison de 100m<sup>2<\/sup> ?<\/p>\n<p style=\"text-align: justify;\">La puissance nominale moyenne des tuiles solaires SunStyle va jusqu\u2019\u00e0 173 kWc par m2, il faudrait donc en th\u00e9orie 18m2 de tuiles actives, mais, on l\u2019a vu plus haut, de nombreux facteurs interviennent dans le calcul exact.<\/p>\n<p style=\"text-align: justify;\">A noter : L\u2019office f\u00e9d\u00e9ral de l\u2019\u00e9nergie en Suisse permet d\u2019<a href=\"https:\/\/www.uvek-gis.admin.ch\/BFE\/sonnendach\/?lang=fr\" target=\"_blank\" rel=\"noopener\">estimer le rendement possible de son toit<\/a>. Des simulateurs similaires sont \u00e9galement disponibles dans de nombreux pays europ\u00e9ens.<\/p>\n<p style=\"text-align: justify;\">Pour commencer notre estimation, nous effectuons une analyse de la situation de votre toit. Nous concevons ensuite votre toiture avec des tuiles solaires actives, inactives et composites, intelligemment dispos\u00e9es pour vous offrir une esth\u00e9tique uniforme et un rendement maximal. <a href=\"\/fr\/contact\/\">Demandez-nous une \u00e9tude !<\/a><\/p>\n[\/vc_column_text][vc_row_inner column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb text_align=\u00a0\u00bbcenter\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb 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