{"id":22210,"date":"2020-11-06T13:54:11","date_gmt":"2020-11-06T12:54:11","guid":{"rendered":"https:\/\/www.qualitel.org\/particuliers\/?p=22210"},"modified":"2024-08-06T16:48:36","modified_gmt":"2024-08-06T14:48:36","slug":"energie-primaire-finale-et-utile-comment-sy-retrouver","status":"publish","type":"post","link":"https:\/\/www.qualitel.org\/particuliers\/conseils\/energie-primaire-finaleet-utile-comment-sy-retrouver\/","title":{"rendered":"\u00c9nergie primaire, finale et utile&nbsp;: quelle est la diff\u00e9rence&nbsp;?"},"content":{"rendered":"<p><span data-contrast=\"auto\">Avant de parvenir jusqu\u2019\u00e0 votre logement, l\u2019\u00e9nergie que vous utilisez chez vous passe par de nombreuses \u00e9tapes. Elle est d\u2019abord <\/span><b><span data-contrast=\"auto\">produite<\/span><\/b><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\"> par exemple<\/span><span data-contrast=\"auto\"> par une centrale nucl\u00e9aire<\/span><span data-contrast=\"auto\">, photovolta\u00efque ou hydraulique<\/span><span data-contrast=\"auto\">, une centrale \u00e0 charbon<\/span><span data-contrast=\"auto\"> (combustible) ou <\/span><span data-contrast=\"auto\">une \u00e9olienne (<a href=\"https:\/\/www.qualitel.org\/particuliers\/conseils\/energie-renouvelable\/\">\u00e9nergie renouvelable<\/a>)<\/span><span data-contrast=\"auto\">.<\/span> <span data-contrast=\"auto\">E<\/span><span data-contrast=\"auto\">lle est<\/span><span data-contrast=\"auto\"> ensuite<\/span> <b><span data-contrast=\"auto\">achemin\u00e9e<\/span><\/b> <span data-contrast=\"auto\">sur de longues distances, <\/span><span data-contrast=\"auto\">puis <\/span><b><span data-contrast=\"auto\">distribu\u00e9e<\/span><\/b><span data-contrast=\"auto\"> jusqu\u2019\u00e0 vous, consommateur<\/span><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">L\u2019\u00e9nergie primaire&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">L<\/span><span data-contrast=\"auto\">\u2019\u00e9nergie primaire, c\u2019est l\u2019\u00e9nergie disponible dans la nature avant transformation&nbsp;: l\u2019\u00e9nergie m\u00e9canique d\u2019une chute d\u2019eau, l\u2019\u00e9nergie solaire&nbsp;<\/span><span data-contrast=\"auto\">ou l\u2019\u00e9nergie issue de la fission nucl\u00e9aire<\/span><span data-contrast=\"auto\">, par exemple.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">Pour apporter une certaine quantit\u00e9 d\u2019\u00e9nergie \u00e0 un consommateur, il faut mobiliser une quantit\u00e9 totale d\u2019\u00e9nergie sup\u00e9rieure, <\/span><span data-contrast=\"auto\">qui est appel\u00e9e \u00e9nergie primaire (Ep)<\/span><span data-contrast=\"auto\"> et <\/span><span data-contrast=\"auto\">qui inclut les d\u00e9perditions <\/span><span data-contrast=\"auto\">lors de la cha\u00eene \u00e9nerg\u00e9tique<\/span><span data-contrast=\"auto\">&nbsp;: <\/span><span data-contrast=\"auto\">production, transformation, transport, distribution, stockage.<\/span><span data-ccp-props=\"{&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:284,&quot;335559738&quot;:120}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">L\u2019\u00e9nergie finale<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">L\u2019\u00e9nergie finale, que l\u2019on appelle aussi \u00e9nergie disponible, est <\/span><b><span data-contrast=\"auto\">l\u2019\u00e9nergie qui est livr\u00e9e chez<\/span><\/b> <b><span data-contrast=\"auto\">vous<\/span><\/b><span data-contrast=\"auto\">, sous forme de gaz, fioul, bois ou \u00e9lectricit\u00e9. Et c\u2019est celle qui correspond \u00e0 la facture de votre fournisseur d\u2019\u00e9nergie.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">La conversion entre l\u2019\u00e9nergie <\/span><span data-contrast=\"auto\">finale<\/span><span data-contrast=\"auto\"> et <\/span><span data-contrast=\"auto\">l\u2019<\/span><span data-contrast=\"auto\">\u00e9nergie primaire est diff\u00e9rente selon l\u2019\u00e9nergie utilis\u00e9e<\/span><span data-contrast=\"auto\">&nbsp;:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Dans le cas de la production d\u2019\u00e9lectricit\u00e9, le coefficient de conversion est de 2,58. Cela veut dire que, pour que vous b\u00e9n\u00e9ficiez chez vous d\u20191 kWh, il a fallu d\u00e9penser 2,58 kWh d\u2019\u00e9nergie primaire. <\/span><span data-ccp-props=\"{&quot;134233279&quot;:true}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"2\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">Pour le bois et le gaz, <\/span><span data-contrast=\"auto\">le coefficient de conversion<\/span><span data-contrast=\"auto\"> est \u00e9gal \u00e0 1. <\/span><span data-contrast=\"auto\">Ainsi, <\/span><span data-contrast=\"auto\">1 kWh d\u2019\u00e9nergie primaire suffit \u00e0 fournir 1 kWh d\u2019\u00e9nergie finale.<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">L\u2019\u00e9nergie utile<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p>L\u2019\u00e9nergie utile est la <strong>part d\u2019\u00e9nergie finale r\u00e9ellement exploit\u00e9e<\/strong> pour r\u00e9pondre \u00e0 un service pr\u00e9cis&nbsp;: chaudi\u00e8re, climatisation, chauffe-eau, \u00e9clairage, lave-vaisselle, pompe \u00e0 chaleur, radiateur, r\u00e9frig\u00e9rateur, etc. Autrement dit, c\u2019est l\u2019\u00e9nergie restitu\u00e9e \u00e0 la sortie d\u2019un syst\u00e8me ou d\u2019un \u00e9quipement \u00e9lectrom\u00e9nage, et dont vous b\u00e9n\u00e9ficiez concr\u00e8tement.<\/p>\n<p><span data-contrast=\"auto\">La facture d\u2019\u00e9nergie indique la consommation d\u2019\u00e9nergie finale ou consommation totale&nbsp;<\/span><span data-contrast=\"auto\">prenant en compte tous les usages d\u2019un logement (t\u00e9l\u00e9vision, \u00e9l\u00e9ments de cuisson, appareils \u00e9lectriques, <\/span><span data-contrast=\"auto\">etc<\/span><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">). Cependant<\/span><span data-contrast=\"auto\">,<\/span> <span data-contrast=\"auto\">cinq<\/span><span data-contrast=\"auto\"> postes repr\u00e9sentent la part de consommation la plus importante<\/span><span data-contrast=\"auto\">&nbsp;:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">L\u2019eau chaude sanitaire&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">L\u2019<\/span><a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux\/production-eau-chaude\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">eau chaude sanitaire<\/span><\/a><span data-contrast=\"auto\"> est un <\/span><b><span data-contrast=\"auto\">poste de consommation <\/span><\/b><b><span data-contrast=\"auto\">important<\/span><\/b> <span data-contrast=\"auto\">dans les consommations \u00e9nerg\u00e9tiques d\u2019un logement. <\/span><span data-contrast=\"auto\">D\u2019ailleurs, d<\/span><span data-contrast=\"auto\">ans <\/span><span data-contrast=\"auto\">un b\u00e2timent basse consommation (<\/span><a href=\"https:\/\/www.qualitel.org\/glossaire\/#quest-ce-quun-habitat-bbc\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">BBC<\/span><\/a><span data-contrast=\"auto\">) <\/span><span data-contrast=\"auto\">ou con\u00e7u selon la <\/span><span data-contrast=\"auto\">r\u00e9glementation environnementale en vigueur<\/span><span data-contrast=\"auto\">, <\/span><span data-contrast=\"auto\">l\u2019eau chaude sanitaire<\/span><span data-contrast=\"auto\"> repr\u00e9sente souvent la plus grande consommation \u00e9nerg\u00e9tique.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">Pour une consommation globale d\u2019environ 70 kWh ep.\/m<\/span><span data-contrast=\"auto\">2<\/span><span data-contrast=\"auto\">.an (consommation d\u2019\u00e9nergie primaire<\/span><span data-contrast=\"auto\">\/<\/span><span data-contrast=\"auto\">unit\u00e9 de surface<\/span><span data-contrast=\"auto\">\/<\/span><span data-contrast=\"auto\">par an<\/span><span data-contrast=\"auto\">), les besoins<\/span><span data-contrast=\"auto\"> en eau chaude sanitaire<\/span><span data-contrast=\"auto\"> sont de <\/span><span data-contrast=\"auto\">l\u2019ordre de 20 \u00e0 30 kWh\/m<\/span><span data-contrast=\"auto\">2<\/span><span data-contrast=\"auto\">.an en \u00e9nergie finale. <\/span><span data-contrast=\"auto\">Bien s\u00fbr, l<\/span><span data-contrast=\"auto\">es conditions d\u2019utilisation et les comportements (nombre d\u2019occupants, nombre de bains, de douches, etc.) <\/span><span data-contrast=\"auto\">ont<\/span><span data-contrast=\"auto\"> un impact important sur la consommation d\u2019\u00e9nergie finale pour ce poste. <\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Le chauffage&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">Deux points sont essentiels pour le <\/span><a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux\/chauffage\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">chauffage<\/span><\/a><span data-contrast=\"auto\">&nbsp;:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">La conception et l<\/span><\/b><b><span data-contrast=\"auto\">e niveau d\u2019<\/span><\/b><b><span data-contrast=\"auto\"><a href=\"https:\/\/www.qualitel.org\/particuliers\/isolation\/\" target=\"_blank\" rel=\"noopener\">isolation<\/a> (performance des parois et baies vitr\u00e9es) influent sur le volume d\u2019\u00e9nergie dont a besoin votre logement pour \u00eatre chauff\u00e9.<\/span><\/b><span data-contrast=\"auto\"> Vous restez cependant d\u00e9pendant des variations de temp\u00e9rature&nbsp;: un hi<\/span><span data-contrast=\"auto\">v<\/span><span data-contrast=\"auto\">er rigoureux impacte<\/span><span data-contrast=\"auto\">ra forc\u00e9ment<\/span><span data-contrast=\"auto\"> votre consommation de chauffage \u00e9lectrique ou au gaz naturel.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">La <\/span><\/b><a href=\"https:\/\/www.qualitel.org\/particuliers\/conseils\/chauffage-quelle-est-la-bonne-temperature-pour-votre-logement\/\" target=\"_blank\" rel=\"noopener\"><b><span data-contrast=\"none\">temp\u00e9rature que vous choisissez<\/span><\/b><\/a><b><span data-contrast=\"auto\"> de maintenir dans votre logement se r\u00e9percute sur votre facture.<\/span><\/b><span data-contrast=\"auto\"> Dans les logements standards, <\/span><span data-contrast=\"auto\">un degr\u00e9 en moins correspond \u00e0 une \u00e9conomie de 7 \u00e0 8&nbsp;%<\/span><span data-contrast=\"auto\"> (<\/span><a href=\"https:\/\/agirpourlatransition.ademe.fr\/particuliers\/maison\/economies-denergie-deau\/astuces-reduire-facture-deau-denergie\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">chiffres <\/span><span data-contrast=\"none\">Ademe<\/span><\/a><span data-contrast=\"auto\">)<\/span><span data-contrast=\"auto\">. <\/span><span data-contrast=\"auto\">Et, d<\/span><span data-contrast=\"auto\">ans les logements bien isol\u00e9s, <\/span><span data-contrast=\"auto\">la baisse de la consommation d\u2019\u00e9nergie peut atteindre<\/span><span data-contrast=\"auto\">&nbsp;1<\/span><span data-contrast=\"auto\">0 \u00e0 15&nbsp;%.\u202f<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true}\">&nbsp;<\/span><\/li>\n<\/ul>\n<p>Pour r\u00e9guler au mieux la temp\u00e9rature de votre logement, nous vous conseillons d\u2019installer un <a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux-maison\/chauffage\/thermostat-connecte\/\">thermostat connect\u00e9<\/a>.<\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">L\u2019\u00e9clairage&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">L\u2019<\/span><a href=\"https:\/\/www.qualitel.org\/particuliers\/conseils\/x-comment-bien-eclairer-votre-logement\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">\u00e9clairage<\/span><\/a><span data-contrast=\"auto\"> constitue <\/span><b><span data-contrast=\"auto\">la plus faible part de la consommation d\u2019\u00e9nergie li\u00e9e au b\u00e2timent<\/span><\/b><span data-contrast=\"auto\">, gr\u00e2ce <\/span><span data-contrast=\"auto\">aux<\/span><span data-contrast=\"auto\"> progr\u00e8s techniques et industriels constants. <\/span><span data-contrast=\"auto\">Aujourd\u2019hui<\/span><span data-contrast=\"auto\">, les ampoules et lampes <\/span><span data-contrast=\"auto\">disponibles <\/span><span data-contrast=\"auto\">sur le march\u00e9 consomment 4 \u00e0 5 fois moins d\u2019\u00e9lectricit\u00e9 que celles utilis\u00e9es par le pass\u00e9.<\/span><span data-contrast=\"auto\"> Cependant, pour baisser votre consommation d\u2019\u00e9lectricit\u00e9 et <\/span><span data-contrast=\"auto\">\u00e9viter le gaspillage d\u2019\u00e9nergie, notamment lorsqu\u2019il ne s\u2019agit pas d\u2019\u00e9nergies renouvelables, veillez \u00e0 bien \u00e9teindre toutes les lumi\u00e8res en sortant d\u2019une pi\u00e8ce&nbsp;!<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Le<\/span><span data-contrast=\"none\">s syst\u00e8mes de<\/span><span data-contrast=\"none\"> refroidissement&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">Si votre logement est \u00e9quip\u00e9 d\u2019un syst\u00e8me de refroidissement, <\/span><b><span data-contrast=\"auto\">prenez le temps de comprendre comment le r\u00e9gler<\/span><\/b> <span data-contrast=\"auto\">afin <\/span><span data-contrast=\"auto\">d\u2019<\/span><span data-contrast=\"auto\">e<\/span><span data-contrast=\"auto\">n faire un usage \u00ab&nbsp;sobre&nbsp;\u00bb et ainsi de limiter votre consommation d\u2019\u00e9nergie.<\/span><span data-contrast=\"auto\">&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">Toutefois, <\/span><span data-contrast=\"auto\">en \u00e9t\u00e9, <\/span><span data-contrast=\"auto\">favoriser la <\/span><a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux-maison\/ventilation\/ventilation-naturelle\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">ventilation naturelle<\/span><\/a><span data-contrast=\"auto\"> et les effets de courant d\u2019air la nuit reste la mani\u00e8re la plus naturelle et la moins on\u00e9reuse de rafra\u00eechir un logement. <\/span>Cela impacte de mani\u00e8re positive votre consommation finale et limite la production d\u2019\u00e9nergie.<\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">La ventilation&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">On distingue la <\/span><a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux-maison\/ventilation\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">VMC double flux de la VMC simple flux<\/span><\/a><span data-contrast=\"auto\">.&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"12\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">La <\/span><a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux-maison\/ventilation\/vmc-simple-flux\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">VMC simple flux<\/span><\/a> <span data-contrast=\"auto\">fait entrer <\/span><span data-contrast=\"auto\">l\u2019air de l\u2019ext\u00e9rieur vers l\u2019int\u00e9rieur<\/span><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\"> avec <\/span><span data-contrast=\"auto\">de<\/span><span data-contrast=\"auto\">s entr\u00e9es d\u2019air <\/span><span data-contrast=\"auto\">dans les<\/span><span data-contrast=\"auto\"> chambres e<\/span><span data-contrast=\"auto\">t le <\/span><span data-contrast=\"auto\">salon,<\/span>&nbsp;<span data-contrast=\"auto\">et<\/span><span data-contrast=\"auto\"> une<\/span><span data-contrast=\"auto\"> extraction de l\u2019air vici\u00e9 dans les pi\u00e8ces <\/span><span data-contrast=\"auto\">humides (cuisine, <\/span><span data-contrast=\"auto\">salle de bai<\/span><span data-contrast=\"auto\">n, <\/span><span data-contrast=\"auto\">WC<\/span><span data-contrast=\"auto\">)<\/span><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"6\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">La<\/span> <a href=\"https:\/\/www.qualitel.org\/particuliers\/equipements-et-materiaux-maison\/ventilation\/vmc-double-flux\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">VMC double flux<\/span><\/a><span data-contrast=\"auto\"> utilise <\/span><span data-contrast=\"auto\">la chaleur pr\u00e9sente dans l\u2019air de l\u2019habitat <\/span><span data-contrast=\"auto\">pour<\/span><span data-contrast=\"auto\"> pr\u00e9chauffer l\u2019air neuf venant de l\u2019ext\u00e9rieur. Ce syst\u00e8me, plus co\u00fbteux qu\u2019une VMC simple flux, permet, s\u2019il est install\u00e9 et entretenu<\/span> <span data-contrast=\"auto\">correctement<\/span><span data-contrast=\"auto\">, de <\/span><b><span data-contrast=\"auto\">r\u00e9aliser des \u00e9conomies de chauffage tout en offrant une meilleure qualit\u00e9 de l\u2019air int\u00e9rieur<\/span><\/b><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true}\"> Vous gagnez en efficacit\u00e9 \u00e9nerg\u00e9tique.<\/span><\/li>\n<\/ul>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Votre facture \u00e9nerg\u00e9tique<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">La plupart du temps, les <\/span><span data-contrast=\"none\">factures<\/span><span data-contrast=\"auto\"> envoy\u00e9es par votre fournisseur d\u2019\u00e9nergie correspondent \u00e0 un forfait mensuel comprenant abonnement et consommations, provisionn\u00e9 puis r\u00e9gularis\u00e9 une fois par an par un relev\u00e9 de votre compteur.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">Les volumes de consommation sont exprim\u00e9s en <\/span><b><span data-contrast=\"auto\">kWh d\u2019\u00e9nergie finale <\/span><\/b><span data-contrast=\"auto\">(valeur affich\u00e9e \u00e0 votre compteur), <\/span><b><span data-contrast=\"auto\">pour des p\u00e9riodes variables<\/span><\/b><span data-contrast=\"auto\"> (mois, trimestre ou ann\u00e9e), <\/span><b><span data-contrast=\"auto\">sans surface de r\u00e9f\u00e9rence, et pour tous les usages li\u00e9s \u00e0 votre logement.<\/span><\/b><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Le d<\/span><span data-contrast=\"none\">iagnostic de performance \u00e9nerg\u00e9tique (DPE)<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p>Le <a href=\"https:\/\/www.qualitel.org\/particuliers\/diagnostics-immobiliers\/dpe\/\">diagnostic de performance \u00e9nerg\u00e9tique<\/a> donne une <strong>estimation de la performance \u00e9nerg\u00e9tique d\u2019un b\u00e2timent<\/strong> r\u00e9sidentiel \u00e0 un instant donn\u00e9, par exemple \u00e0 la livraison d\u2019un logement neuf ou \u00e0 l\u2019achat d\u2019un logement ancien. Cela permet aux potentiels acqu\u00e9reurs de savoir s\u2019il s\u2019agit d\u2019un logement \u00e9conome ou \u00e9nergivore.<\/p>\n<p><span data-contrast=\"auto\">Cette performance est exprim\u00e9e en <\/span><b><span data-contrast=\"auto\">kWh d\u2019\u00e9nergie primaire par m\u00b2 de surface habitable <\/span><\/b><span data-contrast=\"auto\">(<\/span><span data-contrast=\"auto\">S<\/span><span data-contrast=\"auto\">HAB), <\/span><b><span data-contrast=\"auto\">pour <\/span><\/b><b><span data-contrast=\"auto\">trois<\/span><\/b><b><span data-contrast=\"auto\"> usages<\/span><\/b><span data-contrast=\"auto\"> (chauffage, production d\u2019eau chaude sanitaire et refroidissement), <\/span><b><span data-contrast=\"auto\">et par an<\/span><\/b><b><span data-contrast=\"auto\">.<\/span><\/b><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><strong>Bon \u00e0 savoir&nbsp;: <\/strong>depuis le 1er avril 2023, les logements class\u00e9s F ou G doivent obligatoirement faire l\u2019objet d\u2019un <a href=\"https:\/\/www.qualitel.org\/particuliers\/diagnostics-immobiliers\/audit-energetique\/\">audit \u00e9nerg\u00e9tique r\u00e9glementaire<\/a> avant d\u2019\u00eatre propos\u00e9s \u00e0 la vente.<\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">La r\u00e9glementation environnementale&nbsp; <\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\"><br>\n<\/span><\/h3>\n<p>Tout comme la r\u00e9glementation thermique de 2012 (RT2012) la <a href=\"https:\/\/www.qualitel.org\/particuliers\/faire-construire-maison\/maison-re2020\/\"><strong>r\u00e9glementation environnementale RE2020<\/strong><\/a>, en vigueur depuis le 1er janvier 2022 pour les b\u00e2timents \u00e0 usage d\u2019habitation, fixe des obligations de r\u00e9sultats en termes de consommation d\u2019\u00e9nergie primaire (Cep). De plus, la RE2020 prend pour la premi\u00e8re fois en compte, l\u2019impact carbone des constructions en int\u00e9grant plusieurs indicateurs comme le Cep,nr qui renseigne sur la consommation en \u00e9nergies non renouvelables selon les usages, une analyse du cycle de vie (ACV) de la construction, ou encore l\u2019Ic construction, qui d\u00e9termine l\u2019impact carbone de l\u2019ensemble des mat\u00e9riaux et \u00e9quipements utilis\u00e9s pour la construction.<\/p>\n<p>Enfin, pour que votre logement consomme de l\u2019\u00e9nergie raisonnablement, pensez aux travaux de r\u00e9novation.<\/p>\n<p><span data-contrast=\"auto\">Dans le Syst\u00e8me International d\u2019unit\u00e9s, <\/span><b><span data-contrast=\"auto\">l\u2019unit\u00e9 de mesure de l\u2019\u00e9nergie est le joule (J)<\/span><\/b><span data-contrast=\"auto\">.&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><b><span data-contrast=\"auto\">La p<\/span><\/b><b><span data-contrast=\"auto\">uissance d\u2019un syst\u00e8me \u00e9nerg\u00e9tique<\/span><\/b><b><span data-contrast=\"auto\">, <\/span><\/b><b><span data-contrast=\"auto\">c\u2019est-\u00e0-dire la<\/span><\/b><b><span data-contrast=\"auto\"> quantit\u00e9 d\u2019\u00e9nergie consomm\u00e9e ou produite par unit\u00e9 de temps, est exprim\u00e9e en watt (W)<\/span><\/b><span data-contrast=\"auto\">.&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">E<\/span><span data-contrast=\"auto\">n dehors de ces deux unit\u00e9s g\u00e9n\u00e9rales, les autres unit\u00e9s couramment utilis\u00e9es sont les suivantes&nbsp;:&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Electricit\u00e9&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">Dans <\/span><span data-contrast=\"auto\">l\u2019<\/span><span data-contrast=\"auto\">usage courant, <\/span><b><span data-contrast=\"auto\">la consommation \u00e9lectrique <\/span><\/b><b><span data-contrast=\"auto\">est exprim\u00e9e en<\/span><\/b> <b><span data-contrast=\"auto\">kiloWattheure<\/span><\/b><b><span data-contrast=\"auto\"> kWh.<\/span><\/b> <span data-contrast=\"auto\">Un <\/span><span data-contrast=\"auto\">kiloWattheure<\/span><span data-contrast=\"auto\"> est \u00e9gal \u00e0 3,6 millions de joules et correspond \u00e0 la quantit\u00e9 d\u2019\u00e9nergie <\/span><span data-contrast=\"auto\">n\u00e9cessaire pour faire fonctionner pendant une heure un appareil \u00e0 la puiss<\/span><span data-contrast=\"auto\">anc<\/span><span data-contrast=\"auto\">e de 1 <\/span><span data-contrast=\"auto\">kiloWatt<\/span><span data-contrast=\"auto\"> (ou 1000 Watts).<\/span> <span data-contrast=\"auto\">Ce sont ces kilowattheures que vous retrouvez sur votre facture d\u2019\u00e9lectricit\u00e9<\/span><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">Pour m\u00e9mo&nbsp;: <\/span><span data-contrast=\"auto\">1 kiloWattheure <\/span><span data-contrast=\"auto\">= 1 kWh = 1000 Wh<\/span><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">P\u00e9trole&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><b><span data-contrast=\"auto\">L\u2019unit\u00e9 de mesure du p\u00e9trole est le baril (<\/span><\/b><b><span data-contrast=\"auto\">bl<\/span><\/b><span data-contrast=\"auto\">). U<\/span><span data-contrast=\"auto\">n baril est \u00e9gal \u00e0 159 litres, soit en moyenne 0,14 tonn<\/span><span data-contrast=\"auto\">e. I<\/span><span data-contrast=\"auto\">nversement<\/span><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\"> une tonne de p\u00e9trole brut vaut en moyenne 7,33 barils<\/span><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Gaz&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><b><span data-contrast=\"auto\">La consommation de gaz se mesure en m\u00e8tres cubes (m3) <\/span><\/b><span data-contrast=\"auto\">&nbsp;:<\/span> <span data-contrast=\"auto\">c\u2019est ce que vous voyez sur votre compteur. En revanche, <\/span><b><span data-contrast=\"auto\">elle se facture en <\/span><\/b><b><span data-contrast=\"auto\">kiloWattheure<\/span><\/b><b><span data-contrast=\"auto\">.<\/span><\/b><span data-contrast=\"auto\"> Pour obtenir un chiffre en <\/span><span data-contrast=\"auto\">kiloWattheure<\/span><span data-contrast=\"auto\">, votre fournisseur applique un coefficient de conversion<\/span><span data-contrast=\"auto\"> qui varie selon diff\u00e9rents crit\u00e8res<\/span><span data-contrast=\"auto\">.&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\"><span data-contrast=\"none\">Comment comparer des formes d\u2019\u00e9nergie diff\u00e9rentes&nbsp;?&nbsp;<\/span><span data-ccp-props=\"{&quot;335559738&quot;:40}\">&nbsp;<\/span><\/h3>\n<p><span data-contrast=\"auto\">Pour comparer des formes d\u2019\u00e9nergie diff\u00e9rentes, ou faire des \u00e9quivalences, on<\/span><span data-contrast=\"auto\"> utilise parfois le joule (J), mais plus g\u00e9n\u00e9ralement la tonne d\u2019\u00e9quivalent p\u00e9trole (tep).&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-contrast=\"auto\">P<\/span><span data-contrast=\"auto\">ar exemple, entre la tep et le kWh, on peut passer d\u2019une unit\u00e9 \u00e0 l\u2019autre en appliquant la formule suivante&nbsp;: 1000 kWh = 0,086 tep ou inversement&nbsp;: 1 tep = 11 630 kWh<\/span><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Avant de parvenir jusqu\u2019\u00e0 votre logement, l\u2019\u00e9nergie que vous utilisez chez vous passe par de nombreuses \u00e9tapes. Elle est d\u2019abord produite, par exemple par une centrale nucl\u00e9aire, photovolta\u00efque ou hydraulique, une centrale \u00e0 charbon (combustible) ou une \u00e9olienne (\u00e9nergie renouvelable). Elle est ensuite achemin\u00e9e sur de longues distances, puis distribu\u00e9e jusqu\u2019\u00e0 vous, consommateur.&nbsp; L\u2019\u00e9nergie primaire&nbsp;&nbsp; \u2026 <\/p>\n","protected":false},"author":24,"featured_media":22214,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[203,208],"tags":[468,443],"article_type":[298],"benefice":[349],"class_list":["post-22210","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-confort","category-eco-responsabilite","tags-chauffage","tags-energie","article_type-les-bons-choix","benefice-eco-responsabilite"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00c9nergie primaire, finale et utile : quelle diff\u00e9rence ? - Qualitel | Particuliers<\/title>\n<meta name=\"description\" content=\"Dans vos factures d\u2019\u00e9nergie, votre DPE ou encore dans la r\u00e9glementation thermique, la consommation d\u2019\u00e9nergie factur\u00e9e peut \u00eatre de l\u2019\u00e9nergie primaire, finale ou utile. 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