{"id":27390,"date":"2026-03-23T12:31:54","date_gmt":"2026-03-23T11:31:54","guid":{"rendered":"https:\/\/cubeconcepts.de\/?p=27390"},"modified":"2026-06-11T16:35:16","modified_gmt":"2026-06-11T14:35:16","slug":"degradace-fotovoltaickych-elektraren-je-ve-skutecnosti-vyrazne-nizsi-nez-se-dlouho-predpokladalo","status":"publish","type":"post","link":"https:\/\/cubeconcepts.de\/cz\/degradation-von-pv-anlagen-real-deutlich-geringer-als-lange-angenommen\/","title":{"rendered":"Degradace fotovoltaick\u00fdch elektr\u00e1ren: ve skute\u010dnosti v\u00fdrazn\u011b ni\u017e\u0161\u00ed, ne\u017e se dlouho p\u0159edpokl\u00e1dalo"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Dlouhodob\u00e1 v\u00fdkonnost fotovoltaick\u00fdch za\u0159\u00edzen\u00ed je kl\u00ed\u010dov\u00fdm faktorem pro v_\u00fdpo_\u010dty rentability, investi\u010dn\u00edch rozhodnut\u00ed a cen v\u00fdroby elekt\u0159iny. V praxi se <strong>Degradace fotovoltaick\u00fdch elektr\u00e1ren<\/strong> av\u0161ak \u010dasto s <strong>0,8 a\u017e 1,0 procenta ro\u010dn\u011b<\/strong> p\u0159\u00edli\u0161 konzervativn\u011b. Zat\u00edmco se v\u011bt\u0161inou berou v \u00favahu pouze \u00fadaje v\u00fdrobce o degradaci modul\u016f, aktu\u00e1ln\u00ed studie Technick\u00e9 univerzity v Braniborsku (BTU) v Cottbus-Senftenbergu nyn\u00ed ukazuje, \u017ee skute\u010dn\u00e9 ztr\u00e1ty na v\u00fdnosu cel\u00fdch fotovoltaick\u00fdch syst\u00e9m\u016f jsou v\u00fdrazn\u011b pod mnoha dosavadn\u00edmi p\u0159edpoklady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rozs\u00e1hl\u00e9 vyhodnocen\u00ed v\u00edce ne\u017e 1,2 milionu fotovoltaick\u00fdch syst\u00e9m\u016f v N\u011bmecku dosahuje pr\u016fm\u011brn\u00e9 skute\u010dn\u00e9 hodnoty p\u0159ibli\u017en\u011b. <strong>0,6 procent<\/strong>, co\u017e se s rostouc\u00edm st\u00e1\u0159\u00edm za\u0159\u00edzen\u00ed dokonce zpomaluje. Pro provozovatele, investory a pl\u00e1nova\u010de to znamen\u00e1: Mnoho st\u00e1vaj\u00edc\u00edch kalkulac\u00ed podce\u0148uje mo\u017en\u00fd v\u00fdnos elekt\u0159iny b\u011bhem \u017eivotnosti \u2013 s pozitivn\u00edmi dopady na n\u00e1vratnost, p\u0159\u00ednosy pro klima a pl\u00e1nov\u00e1n\u00ed n\u00e1hradn\u00edch investic.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Degradace u fotovoltaick\u00fdch elektr\u00e1ren<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Unter Degradation versteht man den <strong>postupn\u00e9 sni\u017eov\u00e1n\u00ed v\u00fdkonu<\/strong> fotovoltaick\u00e9 elektr\u00e1rny <strong>o provozn\u00ed dob\u011b<\/strong>. Tento je obvykle ud\u00e1v\u00e1n v procentech za rok. Ka\u017ed\u00e1 instalace \u010dasem ztr\u00e1c\u00ed malou \u010d\u00e1st sv\u00e9 schopnosti p\u0159em\u011b\u0148ovat dopadaj\u00edc\u00ed slune\u010dn\u00ed energii na elektrickou energii \u2013 to je zp\u016fsobeno \u00fanavou materi\u00e1lu, pov\u011btrnostn\u00edmi vlivy, zm\u011bnami teploty, UV z\u00e1\u0159en\u00edm, zne\u010di\u0161t\u011bn\u00edm a procesy elektrick\u00e9ho st\u00e1rnut\u00ed. D\u016fle\u017eit\u00e9 je: I mal\u00e9 rozd\u00edly v p\u0159edpokl\u00e1dan\u00e9 degradaci se b\u011bhem 20 nebo 30 provozn\u00edch let s\u010d\u00edtaj\u00ed do zna\u010dn\u00fdch odchylek v o\u010dek\u00e1van\u00fdch mno\u017estv\u00edch elektrick\u00e9 energie a t\u00edm i v p\u0159\u00edjmech, n\u00e1kladech na kilowatthodinu a hodnocen\u00ed investic. D\u016fle\u017eit\u00e9 je p\u0159itom rozli\u0161ovat mezi r\u016fzn\u00fdmi \u00farovn\u011bmi pohledu:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Degradace modulu (fyzik\u00e1ln\u00ed pohled)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Degradace modul\u016f popisuje ztr\u00e1tu v\u00fdkonu jednotliv\u00fdch fotovoltaick\u00fdch modul\u016f za standardizovan\u00fdch podm\u00ednek a v mnoha p\u0159\u00edpadech je to jedin\u00fd koeficient, kter\u00fd se bere v \u00favahu p\u0159i v\u00fdpo\u010dtu ekonomick\u00e9 n\u00e1vratnosti cel\u00fdch elektr\u00e1ren. Typick\u00e9 p\u0159\u00ed\u010diny, kter\u00e9 zp\u016fsobuj\u00ed <a href=\"https:\/\/cubeconcepts.de\/cz\/ucinnost-solarnich-clanku\/\" type=\"post\" id=\"5894\">\u00da\u010dinnost sol\u00e1rn\u00edch \u010dl\u00e1nk\u016f<\/a> ovliv\u0148uj\u00ed<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sv\u011btlem indukovan\u00e9 jevy (LID)<\/li>\n\n\n\n<li>st\u00e1rnut\u00ed vlivem materi\u00e1lu<\/li>\n\n\n\n<li>Mikrotrhliny a \u00fanavov\u00e9 po\u0161kozen\u00ed \u010dl\u00e1nk\u016f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Po po\u010d\u00e1te\u010dn\u00edm opot\u0159eben\u00ed modul\u016f v prvn\u00edm roce provozu (cca 1\u20132 %) se podle studie BTU ro\u010dn\u00ed pokles v\u00fdkonu obvykle pohybuje kolem <strong>0,3\u20130,5 %<\/strong>. Tyto hodnoty vych\u00e1zej\u00ed p\u0159ev\u00e1\u017en\u011b z laboratorn\u00edch test\u016f a \u00fadaj\u016f v\u00fdrobce a p\u0159edstavuj\u00ed technicky izolovan\u00e9 hodnocen\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Degradace syst\u00e9mu (technick\u00e1 celkov\u00e1 sestava)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Studie BTU roz\u0161i\u0159uje pohled i na degradaci syst\u00e9mu, tedy na celou technickou infrastrukturu fotovoltaick\u00e9 elektr\u00e1rny. Krom\u011b modul\u016f jsou zde zohledn\u011bny:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>St\u0159\u00edda\u010d (ztr\u00e1ty \u00fa\u010dinnosti, \u017eivotnost)<\/li>\n\n\n\n<li><a href=\"https:\/\/cubeconcepts.de\/cz\/zapojeni-fotovoltaickych-modulu\/\" type=\"post\" id=\"9751\">Zapojen\u00ed fotovoltaick\u00fdch modul\u016f<\/a> a kontaktn\u00ed m\u00edsta<\/li>\n\n\n\n<li>elektrick\u00e9 ztr\u00e1ty a efekty nesouladu<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typicky se zde pou\u017e\u00edvaj\u00ed rychlosti degradace p\u0159ibli\u017en\u011b <strong>0,5\u20130,8 % ro\u010dn\u011b<\/strong> p\u0159edpokl\u00e1daj\u00ed. Tyto hodnoty jsou realisti\u010dt\u011bj\u0161\u00ed, ale \u010dasto st\u00e1le vych\u00e1zej\u00ed z modelov\u00fdch p\u0159edpoklad\u016f a m\u00e9n\u011b z re\u00e1ln\u011b nam\u011b\u0159en\u00fdch dlouhodob\u00fdch dat.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Degradace v\u00fdnos\u016f (ekonomick\u00e9 rozhodnut\u00ed)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pro provozovatele a investory je v kone\u010dn\u00e9m d\u016fsledku rozhoduj\u00edc\u00ed skute\u010dn\u00fd energetick\u00fd v\u00fdnos. Degradace v\u00fdnosu popisuje pokles skute\u010dn\u011b vyroben\u00e9ho mno\u017estv\u00ed elekt\u0159iny ze za\u0159\u00edzen\u00ed. Krom\u011b technick\u00fdch efekt\u016f sem vstupuj\u00ed tak\u00e9 provozn\u00ed a m\u00edstn\u011b specifick\u00e9 vlivy, kter\u00e9 studie BTU rovn\u011b\u017e zohled\u0148uje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zne\u010di\u0161t\u011bn\u00ed<\/li>\n\n\n\n<li>Vlivy teploty a po\u010das\u00ed<\/li>\n\n\n\n<li>\u00dadr\u017eba a provoz<\/li>\n\n\n\n<li>do\u010dasn\u00e9 v\u00fdpadky<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aktu\u00e1ln\u00ed studie vych\u00e1z\u00ed z provozn\u00edch dat za dobu a\u017e 16 let od 1,25 milionu fotovoltaick\u00fdch elektr\u00e1ren s celkovou kapacitou 34,9 GW a z otev\u0159en\u00fdch dat provozovatel\u016f s\u00edt\u00ed, registru tr\u017en\u00edch \u00fadaj\u016f a meteorologick\u00fdch slu\u017eeb (DWD, Copernicus). Ukazuje pr\u016fm\u011brnou degradaci v\u00fdnos\u016f p\u0159ibli\u017en\u011b <strong>0,59 % ro\u010dn\u011b<\/strong> (rozp\u011bt\u00ed p\u0159ibli\u017en\u011b 0,52\u20130,61 % ro\u010dn\u011b).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kl\u00ed\u010dov\u00e9 v\u00fdsledky studie z aktu\u00e1ln\u00edch ter\u00e9nn\u00edch dat<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nov\u00e1 studie BTU \u201eFrom shine to decline\u201d analyzovala p\u0159es 1,25 milionu fotovoltaick\u00fdch elektr\u00e1ren v N\u011bmecku s celkovou kapacitou kolem 35 GW a maxim\u00e1ln\u00edm st\u00e1\u0159\u00edm 16 let \u2013 co\u017e je v\u00fdrazn\u011b v\u00edce dat ne\u017e v jak\u00e9koli p\u0159edchoz\u00ed studii. Pr\u016fm\u011brn\u00fd ro\u010dn\u00ed \u00fabytek v\u00fdkonu (degradace) cel\u00fdch elektr\u00e1ren se pohybuje mezi 0,52 a\u017e 0,61 procenta \u2013 m\u00e9n\u011b ne\u017e \u010dasto uv\u00e1d\u011bn\u00fdch 0,8 procenta v odborn\u00e9 literatu\u0159e. Celkov\u00fd v\u00fdkon elektr\u00e1ren je tak bl\u00ed\u017ee hodnot\u00e1m degradace modul\u016f, ne\u017e se dosud p\u0159edpokl\u00e1dalo. To nazna\u010duje celkov\u011b vysokou syst\u00e9movou stabilitu modern\u00edch fotovoltaick\u00fdch elektr\u00e1ren.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zvl\u00e1\u0161\u0165 relevantn\u00ed je neline\u00e1rn\u00ed degradace. B\u011bhem prvn\u00edch let provozu se projevuj\u00ed siln\u011bj\u0161\u00ed efekty a n\u00e1sledn\u011b se rychlost degradace sni\u017euje, tak\u017ee za\u0159\u00edzen\u00ed po 10 letech st\u00e1rnou jen o 7 a\u017e 13 procent pomaleji. To vede k tomu, \u017ee za\u0159\u00edzen\u00ed v pozd\u011bj\u0161\u00edm provozu pracuj\u00ed \u010dasto stabiln\u011bji, ne\u017e se p\u0159edpokl\u00e1d\u00e1 v klasick\u00fdch modelech.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"668\" src=\"https:\/\/cubeconcepts.de\/wp-content\/uploads\/2026\/03\/Degradation-von-PV-Anlagen-1024x668.jpg\" alt=\"\" class=\"wp-image-27405\" srcset=\"https:\/\/cubeconcepts.de\/wp-content\/uploads\/2026\/03\/Degradation-von-PV-Anlagen-1024x668.jpg 1024w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2026\/03\/Degradation-von-PV-Anlagen-300x196.jpg 300w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2026\/03\/Degradation-von-PV-Anlagen-768x501.jpg 768w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2026\/03\/Degradation-von-PV-Anlagen-18x12.jpg 18w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2026\/03\/Degradation-von-PV-Anlagen.jpg 1273w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Velk\u00e9 st\u0159e\u0161n\u00ed a pozemn\u00ed instalace v komer\u010dn\u00ed oblasti vykazuj\u00ed zhruba o t\u0159etinu vy\u0161\u0161\u00ed m\u00edru degradace ne\u017e mal\u00e9 soukrom\u00e9 st\u0159e\u0161n\u00ed instalace, pravd\u011bpodobn\u011b kv\u016fli slo\u017eit\u011bj\u0161\u00edm syst\u00e9m\u016fm a potenci\u00e1ln\u011b indukovan\u00e9 degradaci (PID). V porovn\u00e1n\u00ed s glob\u00e1ln\u00edmi p\u0159ehledy (pr\u016fm\u011br 0,8 procenta) dosavadn\u00ed hodnoty nadhodnotily pokles pro m\u00edrn\u00e9 n\u011bmeck\u00e9 klima. Pro praktiky to znamen\u00e1: po 20 letech je v\u00fdkon typicky st\u00e1le kolem 90 procent \u2013 technick\u00e9 ukon\u010den\u00ed \u017eivotnosti po 20 letech je p\u0159\u00edli\u0161 pesimistick\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dopady na ekonomiku a pl\u00e1nov\u00e1n\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ni\u017e\u0161\u00ed re\u00e1ln\u00e1 degradace vede k vy\u0161\u0161\u00edm p\u0159edpokl\u00e1dan\u00fdm energetick\u00fdm v\u00fdnos\u016fm b\u011bhem \u017eivotnosti FV syst\u00e9mu \u2013 s p\u0159\u00edm\u00fdmi v\u00fdhodami pro ekonomickou efektivitu a investi\u010dn\u00ed rozhodnut\u00ed. P\u0159i p\u0159edpokladu 0,6procentn\u00edho ro\u010dn\u00edho poklesu m\u00edsto 0,8 procenta vygeneruje typick\u00fd syst\u00e9m <strong>po 20 letech<\/strong> kolem <strong>3\u20135 procent v\u00edce proudu<\/strong>, co\u017e se u v\u011bt\u0161\u00edch projekt\u016f vy\u0161plh\u00e1 na tis\u00edce eur dodate\u010dn\u00fdch ro\u010dn\u00edch p\u0159\u00edjm\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>Vyrovnan\u00e9 n\u00e1klady na elekt\u0159inu<\/strong> odpov\u00eddaj\u00edc\u00edm zp\u016fsobem kles\u00e1, proto\u017ee po\u010d\u00e1te\u010dn\u00ed investice se rozlo\u017e\u00ed na v\u011bt\u0161\u00ed po\u010det vyroben\u00fdch kilowatthodin \u2013 co\u017e je obzvl\u00e1\u0161t\u011b atraktivn\u00ed v dob\u011b rostouc\u00edch cen elekt\u0159iny a dotac\u00ed. Nov\u00e9 realistick\u00e9 odhady nav\u00edc ovliv\u0148uj\u00ed i ekonomickou rentabilitu model\u016f PPA a Contracting. Ni\u017e\u0161\u00ed m\u00edra degradace <strong>zvy\u0161uje jistotu pl\u00e1nov\u00e1n\u00ed<\/strong> a <strong>zlep\u0161it kalkula\u010dn\u00ed z\u00e1klad<\/strong>. Celkov\u011b v\u00fdzkumn\u00edci z Cottbusu odhaduj\u00ed, \u017ee jen v N\u011bmecku by se do roku 2040 mohly u\u0161et\u0159it ni\u017e\u0161\u00ed stovky milion\u016f eur ro\u010dn\u011b na n\u00e1kladech na \u00fadr\u017ebu a repowering.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vliv klimatu a lokality na degradaci fotovoltaick\u00fdch syst\u00e9m\u016f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Krom\u011b st\u00e1\u0159\u00ed maj\u00ed na v\u00fdkon fotovoltaick\u00fdch panel\u016f prokazateln\u00fd vliv pov\u011btrnostn\u00ed a environment\u00e1ln\u00ed faktory. Ka\u017ed\u00fd extr\u00e9mn\u011b hork\u00fd den nad 30 \u00b0C, mraziv\u00fd den pod 0 \u00b0C nebo mikrogram prachov\u00fdch \u010d\u00e1stic (PM10) na metr krychlov\u00fd sn\u00ed\u017e\u00ed ro\u010dn\u00ed v\u00fdnos o 0,038 a\u017e 0,101 procentn\u00edho bodu. Tepeln\u00e9 zat\u00ed\u017een\u00ed obzvl\u00e1\u0161t\u011b tvrd\u011b dopad\u00e1 na star\u0161\u00ed syst\u00e9my a s \u010dasem se zesiluje, zat\u00edmco mr\u00e1z a zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed v\u00edce ovliv\u0148uj\u00ed mlad\u0161\u00ed syst\u00e9my.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sr\u00e1\u017eky v n\u011bmeck\u00e9m klimatu maj\u00ed tendenci m\u00edt m\u00edrn\u011b pozitivn\u00ed vliv d\u00edky chlazen\u00ed a samoo\u010di\u0161\u0165ov\u00e1n\u00ed modul\u016f. Naopak p\u0159\u00edvalov\u00e9 de\u0161t\u011b v\u0161ak \u010dasto vytv\u00e1\u0159ej\u00ed i mechanick\u00e9 nam\u00e1h\u00e1n\u00ed. Provozovatel\u00e9 by proto m\u011bli vz\u00edt v \u00favahu, \u017ee lokality v ji\u017en\u00edm N\u011bmecku jsou zat\u00ed\u017eeny v\u011bt\u0161\u00edm horkem nebo m\u011bstsk\u00e9 aglomerace vy\u0161\u0161\u00edm zne\u010di\u0161t\u011bn\u00edm. To vy\u017eaduje hust\u0161\u00ed \u00fadr\u017ebu, zat\u00edmco severon\u011bmeck\u00e1 za\u0159\u00edzen\u00ed obvykle t\u011b\u017e\u00ed z m\u00edrn\u011bj\u0161\u00edch podm\u00ednek.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dopady na pl\u00e1nov\u00e1n\u00ed a provoz<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pro&nbsp;<strong>Pl\u00e1nova\u010d projektu<\/strong>&nbsp;Jsou p\u0159edpoklady degradace 0,5 a\u017e 0,7 procent ro\u010dn\u011b pro n\u011bmeck\u00e9 st\u0159e\u0161n\u00ed instalace realisti\u010dt\u011bj\u0161\u00ed ne\u017e \u010dasto konzervativn\u00ed 0,8 a\u017e 1,0 procent \u2013 zejm\u00e9na u vysoce kvalitn\u00edch komponent\u016f a optimalizovan\u00e9ho provozu a dobr\u00e9 \u00fadr\u017eby. P\u0159i vytv\u00e1\u0159en\u00ed model\u016f v\u00fdnos\u016f zahr\u0148te m\u00edstn\u00ed klimatick\u00e9 \u00fadaje (nap\u0159. z DWD), abyste p\u0159esn\u011b zohlednili rizika horka, mrazu a zne\u010di\u0161t\u011bn\u00ed pro danou lokalitu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Provozovatel<\/strong>&nbsp;m\u011bly by se zam\u011b\u0159it na \u0159\u00edzen\u00ed tepla \u2013 st\u00edn\u011bn\u00ed, v\u011btr\u00e1n\u00ed nebo moduly odoln\u00e9 v\u016f\u010di teplu pom\u00e1haj\u00ed, proto\u017ee star\u0161\u00ed za\u0159\u00edzen\u00ed na n\u011b reaguj\u00ed obzvl\u00e1\u0161t\u011b citliv\u011b; pravideln\u00e9 \u010di\u0161t\u011bn\u00ed v bl\u00edzkosti pr\u016fmyslov\u00fdch nebo dopravn\u00edch z\u00f3n prov\u00e1d\u011bt, aby se minimalizovaly \u00fa\u010dinky jemn\u00e9ho prachu. Velk\u00e9 sol\u00e1rn\u00ed parky a st\u0159e\u0161n\u00ed instalace v\u0161ak vy\u017eaduj\u00ed \u010dast\u011bj\u0161\u00ed kontroly z d\u016fvodu rizika degradace o jednu t\u0159etinu vy\u0161\u0161\u00edho.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Investo\u0159i<\/strong>&nbsp;profitovat z vy\u0161\u0161\u00edch o\u010dek\u00e1van\u00fdch dod\u00e1vek elekt\u0159iny. To znamen\u00e1, \u017ee st\u00e1vaj\u00edc\u00ed za\u0159\u00edzen\u00ed jsou cenn\u011bj\u0161\u00ed, ne\u017e se dosud p\u0159edpokl\u00e1dalo, a nov\u00e9 projekty se rychleji vyplat\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O studii<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Analyzovan\u00e1 studie \u201eFrom shine to decline \u2013 Degradation of over 1 million solar photovoltaic systems in Germany\u201d vyjde v roce 2026 v&nbsp;<em>Energetick\u00e1 ekonomika<\/em>&nbsp;publikov\u00e1no. Zkoum\u00e1 v\u0161echna data pomoc\u00ed v\u00edcerozm\u011brn\u00fdch panelov\u00fdch regres\u00ed s fixn\u00edmi efekty \u2013 a v\u00fdrazn\u011b se odli\u0161uje od p\u0159edchoz\u00edch prac\u00ed. Ve srovn\u00e1n\u00ed s dosavadn\u00edmi studiemi ji p\u0159ekon\u00e1v\u00e1 obrovsk\u00fd rozsah vzork\u016f (miliony vs. tis\u00edce za\u0159\u00edzen\u00ed), dlouh\u00e1 doba pozorov\u00e1n\u00ed (16 let nep\u0159etr\u017eit\u011b) a zohledn\u011bn\u00ed environment\u00e1ln\u00edch faktor\u016f a neline\u00e1rn\u00ed degradace. Na z\u00e1klad\u011b otev\u0159en\u00fdch datov\u00fdch zdroj\u016f, jako je registr tr\u017en\u00edch dat, transparentnost s\u00edt\u011b a DWD, tak poskytuje vysoce robustn\u00ed, prakticky relevantn\u00ed v\u00fdsledky pro m\u00edrn\u00e9 n\u011bmeck\u00e9 klima.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159\u00edm\u00e9 srovn\u00e1n\u00ed s dosavadn\u00edmi studiemi <\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td>Studie BTU o kompletn\u00edch fotovoltaick\u00fdch syst\u00e9mech<\/td><td>Dosavadn\u00ed p\u0159edpoklady zalo\u017een\u00e9 na degradaci modulu<\/td><td>Rozd\u00edl<\/td><\/tr><tr><td>M\u00edra degradace<\/td><td>\u00d8 0,52\u20130,61 % ro\u010dn\u011b (\u2248 0,59 %)<\/td><td>\u00d8 ~0,8\u20131,1 % ro\u010dn\u011b (\u00fadaje z literatury ~1,09 %)<\/td><td>~40\u201350 % ni\u017e\u0161\u00ed degradace, ne\u017e se dosud p\u0159edpokl\u00e1dalo<\/td><\/tr><tr><td>Pr\u016fb\u011bh degradace (line\u00e1rn\u00ed vs. neline\u00e1rn\u00ed)<\/td><td>Degradace nen\u00ed line\u00e1rn\u00ed; ztr\u00e1ta se s v\u011bkem sni\u017euje. Po 10 letech: 7\u201313 % \u2013 ni\u017e\u0161\u00ed ro\u010dn\u00ed degradace<\/td><td>Nej\u010dast\u011bji line\u00e1rn\u00ed v\u00fdvoj (konstantn\u00ed ro\u010dn\u00ed ztr\u00e1ta)<\/td><td>Ran\u00e1 f\u00e1ze v\u00edce zasa\u017eena, pot\u00e9 stabilizace \u2013 Line\u00e1rn\u00ed modely jsou:<br>kr\u00e1tkodob\u011b p\u0159\u00edli\u0161 optimistick\u00fd<br>dlouhodob\u011b p\u0159\u00edli\u0161 pesimisticky<\/td><\/tr><tr><td>V\u00fdsledek po 20 letech<\/td><td>88,9 %<\/td><td>81,79 % (p\u0159i 1% za rok)<br>V\u00fdrobci zaru\u010duj\u00ed: i po 30 letech st\u00e1le v\u00edce ne\u017e 85 % %<\/td><td>po 30 letech p\u0159i 1 % = 74 %<br>Po 30 letech na \u00farovni 0,59 % = 83,74 %<\/td><\/tr><tr><td>Vliv velikosti za\u0159\u00edzen\u00ed<\/td><td>Velk\u00e9 instalace (&gt;30 kWp): ~1\/3 vy\u0161\u0161\u00ed degradace<\/td><td>Zam\u011b\u0159te se t\u00e9m\u011b\u0159 v\u00fdhradn\u011b na: mal\u00e9 instalace (&lt;30 kWp) s mal\u00fdm rozli\u0161en\u00edm podle velikosti<\/td><td>\u00daspory z rozsahu p\u016fsob\u00ed na degradaci negativn\u011b<\/td><\/tr><tr><td>Vliv teploty<\/td><td>Horkost a chlad zp\u016fsobuj\u00ed m\u011b\u0159iteln\u00e9 dodate\u010dn\u00e9 ztr\u00e1ty<br>\u22120,038 % a\u017e \u22120,101 % na jeden extr\u00e9mn\u00ed den<\/td><td>Faktory \u017eivotn\u00edho prost\u0159ed\u00ed \u010dasto: zjednodu\u0161en\u011b nebo v\u016fbec systematicky integrov\u00e1ny<\/td><td>Kvantifikovan\u00fd, v\u00fdznamn\u00fd vliv, rozhodnut\u00ed o um\u00edst\u011bn\u00ed bude kl\u00ed\u010dov\u011bj\u0161\u00ed<\/td><\/tr><tr><td>Vliv zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed<\/td><td>Jasn\u011b negativn\u00ed dopad (PM10)<\/td><td>\u010casto: zanedb\u00e1v\u00e1no nebo pouze kvalitativn\u011b hodnoceno<\/td><td>Kvantifikovan\u00fd, v\u00fdznamn\u00fd vliv, rozhodnut\u00ed o um\u00edst\u011bn\u00ed bude kl\u00ed\u010dov\u011bj\u0161\u00ed<\/td><\/tr><tr><td>Vliv sr\u00e1\u017eek<\/td><td>\u017d\u00e1dn\u00fd jasn\u00fd efekt: Chlazen\u00ed a \u010di\u0161t\u011bn\u00ed vs. rozptyl a vlhkost<\/td><td>\u010casto pau\u0161\u00e1ln\u011b hodnocen pozitivn\u011b (\u010distic\u00ed \u00fa\u010dinek)<\/td><td>Realita je znateln\u011b slo\u017eit\u011bj\u0161\u00ed<\/td><\/tr><tr><td>Interakce<\/td><td>\u00da\u010dinky se m\u011bn\u00ed s rostouc\u00edm v\u011bkem:<br>Teplo \u2192 siln\u011bj\u0161\u00ed u star\u00fdch za\u0159\u00edzen\u00ed<br>Chlad a zne\u010di\u0161t\u011bn\u00ed \u2192 siln\u011bj\u0161\u00ed u nov\u00fdch syst\u00e9m\u016f<\/td><td>V\u011bt\u0161inou nejsou zohledn\u011bny dynamick\u00e9 interakce<\/td><td>Degradace je dynamick\u00fd proces<\/td><\/tr><tr><td>Datab\u00e1ze<\/td><td>1 milion za\u0159\u00edzen\u00ed, ~35 GW<br>provozn\u00ed data star\u00e1 a\u017e 16 let<\/td><td>\u010dasto: m\u00e1lo za\u0159\u00edzen\u00ed (7\u20132 000) a kr\u00e1tk\u00e1 obdob\u00ed (2\u20137 let)<\/td><td>Robustn\u011bj\u0161\u00ed data: Reprezentativn\u011bj\u0161\u00ed a bli\u017e\u0161\u00ed re\u00e1ln\u00e9mu provozu<\/td><\/tr><tr><td>Ekonomick\u00e9 hodnocen\u00ed<\/td><td>Degradace v\u00fdrazn\u011b levn\u011bj\u0161\u00ed:<br>\u22124,8 % LCOE oproti p\u016fvodn\u00edm p\u0159edpoklad\u016fm<br>Celkov\u00e9 hospod\u00e1\u0159stv\u00ed<br>~638 milion\u016f \u20ac \u00faspor\/rok mo\u017en\u00e9<\/td><td>Zv\u00fd\u0161en\u00e9 n\u00e1klady na n\u00e1hradn\u00ed d\u00edly a popt\u00e1vku po\u010d\u00edt\u00e1ny<\/td><td>Vy\u0161\u0161\u00ed v\u00fdnos i po dlouh\u00fdch provozn\u00edch dob\u00e1ch, dokonce i p\u0159i v\u00fdm\u011bn\u011b hardwarov\u00fdch komponent\u016f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Neline\u00e1rn\u00ed degradace nyn\u00ed standard<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ve srovn\u00e1n\u00ed s dosavadn\u00edmi studiemi je tato studie lep\u0161\u00ed d\u00edky obrovsk\u00e9mu rozsahu vzorku (miliony oproti tis\u00edc\u016fm za\u0159\u00edzen\u00ed), dlouh\u00e9mu obdob\u00ed sledov\u00e1n\u00ed (16 let nep\u0159etr\u017eit\u011b) a zohledn\u011bn\u00ed environment\u00e1ln\u00edch faktor\u016f i neline\u00e1rn\u00ed degradace. Na z\u00e1klad\u011b otev\u0159en\u00fdch datov\u00fdch zdroj\u016f, jako jsou registry tr\u017en\u00edch \u00fadaj\u016f, transparentnost s\u00edt\u011b a DWD, poskytuje tak velmi spolehliv\u00e9 a prakticky relevantn\u00ed v\u00fdsledky pro m\u00edrn\u00e9 n\u011bmeck\u00e9 klima. Podobn\u00fd v\u00fdsledek p\u0159inesla studie Vysok\u00e9 \u0161koly ji\u017en\u00ed \u0160v\u00fdcarska SUPSI z roku 2026. I zde dosahovaly fotovoltaick\u00e9 syst\u00e9my po 25 a\u017e 30 letech provozu st\u00e1le 80 % p\u016fvodn\u00edho jmenovit\u00e9ho v\u00fdkonu. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Aktu\u00e1ln\u00ed dlouhodob\u00e1 studie Technick\u00e9 univerzity v Cottbusu ukazuje, \u017ee skute\u010dn\u00fd pokles v\u00fdkonu fotovoltaick\u00fdch elektr\u00e1ren, kter\u00fd \u010din\u00ed p\u0159ibli\u017en\u011b 0,6 % ro\u010dn\u011b, je v\u00fdrazn\u011b ni\u017e\u0161\u00ed, ne\u017e se \u010dasto p\u0159edpokl\u00e1d\u00e1. Pro provozovatele a investory to znamen\u00e1 vy\u0161\u0161\u00ed v\u00fdnosy elekt\u0159iny po celou dobu \u017eivotnosti a znateln\u011b lep\u0161\u00ed rentabilitu jejich projekt\u016f.<\/p>","protected":false},"author":3,"featured_media":27436,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,61,25],"tags":[],"class_list":["post-27390","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solar-news","category-grundlagen-technik","category-photovoltaik"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Degradation von PV-Anlagen | CUBE CONCEPTS<\/title>\n<meta name=\"description\" content=\"Neue Studie zur Degradation von PV-Anlagen: Sie ist real deutlich geringer als bisher angenommen und macht sie noch wirtschaftlicher.\" \/>\n<meta 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