{"id":1018,"date":"2009-03-19T09:18:59","date_gmt":"2009-03-19T09:18:59","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/03\/19\/brightsource-veut-construire-une-usine-solaire-thermique-au-nord-de-las-vegas\/"},"modified":"2012-07-12T11:27:27","modified_gmt":"2012-07-12T11:27:27","slug":"brightsource-veut-construire-une-usine-solaire-thermique-au-nord-de-las-vegas","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/03\/19\/brightsource-veut-construire-une-usine-solaire-thermique-au-nord-de-las-vegas\/","title":{"rendered":"BrightSource veut construire une usine solaire thermique au nord de Las Vegas"},"content":{"rendered":"

                              BrightSource <\/span><\/strong>(BS) g\u00e8re de nombreux projets de centrales thermiques solaires par concentration dans le Sud-ouest des Etats-Unis. Pour compl\u00e9ter son offre aux distributeurs d'\u00e9lectricit\u00e9 locaux BS envisage de construire une centrale thermique solaire de 600 MW dans le Colorado, \u00e0 60 miles au Nord de Las Vegas. Son module de base (FIG.) est une unit\u00e9 de 100MW constitu\u00e9e d'une tour captant, tous azimuts ce qui est nouveau, les rayons solaires provenant de 50000 miroirs orientables (h\u00e9liostats) de 14,4 m2 chacun. Chaque miroir poss\u00e8de deux degr\u00e9s de libert\u00e9 et est orient\u00e9 individuellement avec une grande pr\u00e9cision, \u00e0 l'aide d'un logiciel complexe. Le liquide caloporteur qui alimente l'\u00e9changeur de chaleur est port\u00e9 \u00e0 550\u00b0C.<\/p>\n

\"BrightSource-100MW\"<\/a>  <\/p>\n

                    Par rapport \u00e0 ses pr\u00e9c\u00e9dents projets qui ne captaient les rayons solaires que sur un secteur de disque sur une seule face de la tour, BS s'est efforc\u00e9 d'am\u00e9liorer la puissance sp\u00e9cifique de ses installations. Par rapport \u00e0 la surface des miroirs qui est de 72 hectares le rendement global de conversion est de 14% (100\/720 pour 1kW de rayonnement solaire par m2<\/sup>) ce qui est bien. Mais les probl\u00e8mes de manutention et de maintenance n\u00e9cessitent des espacements suffisants entre miroirs qui multiplient sensiblement par quatre la surface au sol (un mile carr\u00e9 ou 257 hectares pour 100 mW) ce qui conduit \u00e0 un rendement surfacique de puissance d'environ 4%. En plein d\u00e9sert de Mojave ce n'est peut-\u00eatre pas tr\u00e8s grave, mais ce sont tout de m\u00eame des syst\u00e8mes qui consomment beaucoup de surface au sol, ce qui limitera une extension de tels syst\u00e8mes vers de zones plus peupl\u00e9es.<\/p>\n

                  La concurrence de modules photovolta\u00efques \u00e9conomiques en couches minces, facilement orientables et \u00e0 faible maintenance, est la principale menace concurrente aux techniques solaires thermiques par concentration.<\/p>\n

Le 19 Mars 2009.<\/p>\n

–<\/p>\n","protected":false},"excerpt":{"rendered":"

                              BrightSource (BS) g\u00e8re de nombreux projets de centrales thermiques solaires par concentration dans le Sud-ouest des Etats-Unis. Pour compl\u00e9ter son offre aux distributeurs d'\u00e9lectricit\u00e9 locaux BS envisage de construire une centrale thermique solaire de 600 MW dans le Colorado, \u00e0 60 miles au Nord de Las Vegas. Son module de base (FIG.) est une […]<\/p>\n","protected":false},"author":341,"featured_media":19790,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-1018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solaire"],"yoast_head":"\nBrightSource veut construire une usine solaire thermique au nord de Las Vegas - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/03\/19\/brightsource-veut-construire-une-usine-solaire-thermique-au-nord-de-las-vegas\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"BrightSource veut construire une usine solaire thermique au nord de Las Vegas - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"                              BrightSource (BS) g\u00e8re de nombreux projets de centrales thermiques solaires par concentration dans le Sud-ouest des Etats-Unis. 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