{"id":26,"date":"2012-04-05T15:12:16","date_gmt":"2012-04-05T15:12:16","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2012\/04\/05\/etats-unis-la-consommation-dessence-poursuit-sa-remarquable-decroissance\/"},"modified":"2012-07-12T12:40:17","modified_gmt":"2012-07-12T12:40:17","slug":"etats-unis-la-consommation-dessence-poursuit-sa-remarquable-decroissance","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2012\/04\/05\/etats-unis-la-consommation-dessence-poursuit-sa-remarquable-decroissance\/","title":{"rendered":"Etats-Unis: la consommation d&rsquo;essence poursuit sa remarquable d\u00e9croissance"},"content":{"rendered":"<p>&#160;Avec des consommations d&#039;essence au-dessus des 9 millions de barils\/jour dans les ann\u00e9es 2005-2008 (FIG.I) les \u00c9tats-Unis br\u00fblaient all\u00e8grement dans leurs limousines et autres 4X4 plus de 10% de la totalit\u00e9 des 85 \u00e0 88 millions de barils de produits p\u00e9troliers consomm\u00e9s dans le monde.<\/p>\n<p><a class=\"asset-img-link\" href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2016764ad2cd9970b-pi.jpg\"><img decoding=\"async\" alt=\"Conso-essence-USA\" class=\"asset  asset-image at-xid-6a00d83451b18369e2016764ad2cd9970b\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2016764ad2cd9970b-450wi.jpg\" style=\"width: 450px\" \/><\/a><\/p>\n<p>&#160;Formidable g\u00e2chis \u00e9nerg\u00e9tique de v\u00e9hicules de plus en plus lourds, aux chromes ostentatoires pouvant r\u00e9sister au choc avec d&#039;hypoth\u00e9tiques &quot;buffles&quot; et autres \u00e9lans \u00e9gar\u00e9s sur les autoroutes de ce grand pays. Depuis la crise \u00e9conomique, la pression financi\u00e8re des prix des carburants \u00e0 la pompe et l&#039;exemple des mod\u00e8les allemands et japonais ont fait comprendre \u00e0 certains de ces cow-boys qu&#039;un v\u00e9hicule plus l\u00e9ger, mieux profil\u00e9, aux rendements optimis\u00e9s pouvait pr\u00e9senter certains atouts. L&#039;offre des constructeurs s&#039;est adapt\u00e9e, l&#039;Am\u00e9rique n&#039;a jamais autant achet\u00e9 de Prius&#8230;pourtant bien d\u00e9cri\u00e9es il y a encore peu. La consommation moyenne des v\u00e9hicules immatricul\u00e9s au mois de Mars est pass\u00e9e au-dessous des 9,8 litres aux cent (24.1 miles\/gallon) selon l&#039;UMTRI&#8230;mais il reste encore un long chemin \u00e0 parcourir pour acc\u00e9der \u00e0 la sobri\u00e9t\u00e9.<\/p>\n<p>&#160;Les consommations du mois de Janvier sont traditionnellement les plus faibles de l&#039;ann\u00e9e et ce mois de Janvier 2012 n&#039;a pas d\u00e9fi\u00e9 la tradition. Un suivi des consommations de ce seul mois (FIG.II) illustre combien la baisse du gaspillage est en marche.<\/p>\n<p><a class=\"asset-img-link\" href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2016303b88831970d-pi.jpg\"><img decoding=\"async\" alt=\"Conso-essence-USA-janvier\" class=\"asset  asset-image at-xid-6a00d83451b18369e2016303b88831970d\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2016303b88831970d-450wi.jpg\" style=\"width: 450px\" \/><\/a><\/p>\n<p>Il est possible de mesurer sur ce graphique l&#039;importance du bio\u00e9thanol aux \u00c9tats-Unis qui atteint en volume dans les 9,5% des volumes d&#039;essence consomm\u00e9s. Cette fraction devrait s&#039;accroitre dans les ann\u00e9es \u00e0 venir avec la g\u00e9n\u00e9ralisation du carburant E15 (15% d&#039;\u00e9thanol en volume) et la comp\u00e9titivit\u00e9 \u00e0 \u00e9nergie \u00e9quivalente des cours de l&#039;\u00e9thanol d\u00e9natur\u00e9, maintenant non subventionn\u00e9, par rapport \u00e0 ceux de l&#039;essence (FIG.III).<\/p>\n<p><a class=\"asset-img-link\" href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2016764ad61e3970b-pi.jpg\"><img decoding=\"async\" alt=\"Cours essence New York\" class=\"asset  asset-image at-xid-6a00d83451b18369e2016764ad61e3970b\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2016764ad61e3970b-450wi.jpg\" style=\"width: 450px\" \/><\/a><\/p>\n<p>En conclusion: malgr\u00e9 l&#039;accroissement de la population active et la g\u00e9n\u00e9ralisation des essences &quot;oxyg\u00e9n\u00e9es&quot; moins \u00e9nerg\u00e9tiques, la consommation globale d&#039;essence d\u00e9croit aux \u00c9tats-Unis depuis 5 ans. La part d&#039;hydrocarbures issus de la distillation des p\u00e9troles ou autres condensats d\u00e9croit encore plus rapidement en raison de l&#039;utilisation croissante de bio\u00e9thanol. Ce mouvement de baisse des consommations am\u00e9ricaines devrait se poursuivre devant un p\u00e9trole de plus en plus on\u00e9reux. L&#039;apport d&#039;une part croissante de bio\u00e9thanol moins on\u00e9reux limitera partiellement la hausse des prix \u00e0 la pompe et de la demande en fraction p\u00e9troli\u00e8re.<\/p>\n<p>Certains continueront, malgr\u00e9 les faits et sur des crit\u00e8res bidons, \u00e0 maudire les biocarburants qui deviennent une part incontournable des consommations \u00e9nerg\u00e9tiques de ce monde.<\/p>\n<p>ACCEDER <a href=\"http:\/\/www.umich.edu\/~umtriswt\/EDI_sales-weighted-mpg.html\" target=\"_blank\">aux donn\u00e9es de l&#039;UMTRI<\/a>.<\/p>\n<p>&#160;<\/p>\n<p>&#160;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#160;Avec des consommations d&#039;essence au-dessus des 9 millions de barils\/jour dans les ann\u00e9es 2005-2008 (FIG.I) les \u00c9tats-Unis br\u00fblaient all\u00e8grement dans leurs limousines et autres 4X4 plus de 10% de la totalit\u00e9 des 85 \u00e0 88 millions de barils de produits p\u00e9troliers consomm\u00e9s dans le monde. &#160;Formidable g\u00e2chis \u00e9nerg\u00e9tique de v\u00e9hicules de plus en plus lourds, [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":23208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-26","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bio-carburants"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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