{"id":5894,"date":"2023-03-14T15:20:56","date_gmt":"2023-03-14T14:20:56","guid":{"rendered":"https:\/\/cubeconcepts.de\/?p=5894"},"modified":"2026-04-08T08:54:44","modified_gmt":"2026-04-08T06:54:44","slug":"efficiency-of-solar-cells","status":"publish","type":"post","link":"https:\/\/cubeconcepts.de\/en\/wirkungsgrad-von-solarzellen\/","title":{"rendered":"Wirkungsgrad von Solarzellen: Wie effizient sind PV-Anlagen wirklich?"},"content":{"rendered":"<p><em>(Aktualisiert April 2026)<\/em> Modernity <strong>Solarzellen<\/strong> erreichen heute in der Praxis <strong>Wirkungsgrade von rund 20\u201323 %<\/strong> bei Standardmodulen. Entscheidend f\u00fcr den tats\u00e4chlichen Ertrag einer Photovoltaikanlage ist jedoch nicht nur die Zelle selbst, sondern die sogenannte Performance Ratio (PR). Diese liegt bei modernen Anlagen typischerweise zwischen 80 und 90 % und beschreibt, wie viel der theoretisch m\u00f6glichen Energie tats\u00e4chlich erzeugt wird.<\/p>\n\n\n\n<figure class=\"wp-block-image alignright size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/solar-cell-g20ca9029c_1920-1024x683.jpg\" alt=\"\" class=\"wp-image-5897\" style=\"aspect-ratio:1.4993182663306202;width:504px;height:auto\" srcset=\"https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/solar-cell-g20ca9029c_1920-1024x683.jpg 1024w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/solar-cell-g20ca9029c_1920-300x200.jpg 300w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/solar-cell-g20ca9029c_1920-768x512.jpg 768w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/solar-cell-g20ca9029c_1920-1536x1024.jpg 1536w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/solar-cell-g20ca9029c_1920.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Das Wichtigste in K\u00fcrze<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Standardmodule (monokristallin): ca. 20\u201323 % Wirkungsgrad <\/li>\n\n\n\n<li>Performance Ratio moderner Anlagen: ca. 80\u201390 % <\/li>\n\n\n\n<li>Gr\u00f6\u00dfte Verluste: Temperatur, Wechselrichter, Verschattung <\/li>\n\n\n\n<li>Fl\u00e4cheneffizienz entscheidend f\u00fcr Wirtschaftlichkeit <\/li>\n\n\n\n<li>Wirkungsgrad allein ist nicht ausschlaggebend f\u00fcr den Ertrag<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Was bedeutet der Wirkungsgrad bei Solarzellen?<\/h2>\n\n\n\n<p>Der Wirkungsgrad beschreibt, wie viel der eingestrahlten Sonnenenergie in elektrische Energie umgewandelt wird.<\/p>\n\n\n\n<p>Beispiel:<br>Ein Wirkungsgrad von 20 % bedeutet, dass 20 % der Sonnenenergie als Strom nutzbar gemacht werden.<\/p>\n\n\n\n<p>Wichtig: Der Wirkungsgrad bezieht sich <strong>nur auf die Solarzelle<\/strong>, nicht auf die gesamte Anlage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Was ist die Performance Ratio (PR)?<\/h2>\n\n\n\n<p>Die Performance Ratio ist die <strong>entscheidende Kennzahl<\/strong> f\u00fcr die Gesamtleistung einer PV-Anlage.<\/p>\n\n\n\n<p>Sie beschreibt das Verh\u00e4ltnis zwischen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tats\u00e4chlich erzeugtem Strom<\/li>\n\n\n\n<li>theoretisch m\u00f6glichem Strom unter idealen Bedingungen<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Moderne Anlagen erreichen heute: ca. <strong>80\u201390 % Performance Ratio<\/strong><\/p>\n\n\n\n<p>Verluste entstehen u. a. durch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wechselrichter (~2\u20134 %)<\/li>\n\n\n\n<li>Verkabelung (~1\u20132 %)<\/li>\n\n\n\n<li>Temperaturverluste<\/li>\n\n\n\n<li>Verschmutzung<\/li>\n\n\n\n<li>Shading<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Wie haben sich Wirkungsgrade entwickelt?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1980er Jahre: ca. 10\u201315 % Zellwirkungsgrad<\/li>\n\n\n\n<li>2000er Jahre: ca. 15\u201318 %<\/li>\n\n\n\n<li>heute (Standardmodule): ca. <strong>20\u201323 %<\/strong><\/li>\n\n\n\n<li>High-End-Module: bis ca. 24 %<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Im Labor:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tandemzellen: >30 %<\/li>\n\n\n\n<li>Mehrfachzellen: >40 %<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Wichtig f\u00fcr die Praxis: Diese hohen Werte sind <strong>nicht wirtschaftlich im Serieneinsatz verf\u00fcgbar<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Welche Solarzellen-Typen sind heute relevant?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Monokristalline Solarzellen (Standard im Gewerbe)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wirkungsgrad: ca. 20\u201323 % <\/li>\n\n\n\n<li>h\u00f6chste Fl\u00e4cheneffizienz <\/li>\n\n\n\n<li>Standard f\u00fcr Industrie- und Gewerbeanlagen<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Polykristalline Solarzellen (kaum noch relevant)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wirkungsgrad: ca. 17\u201320 % <\/li>\n\n\n\n<li>heute weitgehend vom Markt verdr\u00e4ngt<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">D\u00fcnnschichtmodule<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wirkungsgrad: ca. 10\u201313 % <\/li>\n\n\n\n<li>Vorteile: leicht, flexibel <\/li>\n\n\n\n<li>Einsatz: Spezialanwendungen (z. B. <a href=\"https:\/\/cubeconcepts.de\/en\/bipv-im-ueberblick\/\" type=\"post\" id=\"27230\">BiPV<\/a>)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Welche Faktoren beeinflussen den Wirkungsgrad in der Praxis?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Temperatur (sehr wichtig)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Leistungsabfall: ca. <strong>0,3\u20130,4 % pro \u00b0C<\/strong><\/li>\n\n\n\n<li>hohe Modultemperaturen = geringerer Ertrag<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Deshalb sind Anlagen in gem\u00e4\u00dfigten Klimazonen sehr effizient.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Verschattung<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>selbst kleine Verschattungen k\u00f6nnen gro\u00dfe Verluste verursachen <\/li>\n\n\n\n<li>entscheidend bei Planung (Simulation, String-Auslegung)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Verschmutzung<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>typische Verluste: <strong>2\u20135 %<\/strong> <\/li>\n\n\n\n<li>bei flachen D\u00e4chern deutlich h\u00f6her m\u00f6glich<\/li>\n<\/ul>\n\n\n\n<p>Eine regelm\u00e4\u00dfige <a href=\"https:\/\/cubeconcepts.de\/en\/photovoltaic-cleaning-efficiency-and-value-retention\/\" type=\"post\" id=\"8685\">Photovoltaic cleaning<\/a> steigert die Effizienz- und Werterhaltung. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"456\" src=\"https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/Wirkungsgrad-Solarzellen-Verschmutzung-1024x456.jpg\" alt=\"Efficiency solar cell pollution\" class=\"wp-image-11810\" style=\"aspect-ratio:2.2457383218950633;width:285px;height:auto\" srcset=\"https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/Wirkungsgrad-Solarzellen-Verschmutzung-1024x456.jpg 1024w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/Wirkungsgrad-Solarzellen-Verschmutzung-300x134.jpg 300w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/Wirkungsgrad-Solarzellen-Verschmutzung-768x342.jpg 768w, https:\/\/cubeconcepts.de\/wp-content\/uploads\/2023\/03\/Wirkungsgrad-Solarzellen-Verschmutzung.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4. Degradation<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>moderne Module: ca. <strong>0,3\u20130,5 % pro Jahr<\/strong> <\/li>\n\n\n\n<li>nach 20 Jahren typischerweise noch ~85\u201390 % Leistung<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Bei regelm\u00e4\u00dfiger Wartung und ggf. Austausch der Module ist die <a href=\"https:\/\/cubeconcepts.de\/en\/degradation-von-pv-anlagen-real-deutlich-geringer-als-lange-angenommen\/\" type=\"post\" id=\"27390\">Degradation von PV-Anlagen<\/a> gem\u00e4\u00df neuester Studien relativ gering. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Systemverluste<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wechselrichter, Verkabelung etc. summieren sich insgesamt auf ca. 5\u201310 % Ertragsverlustverlust<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Wie wichtig ist der Wirkungsgrad f\u00fcr Unternehmen mit PV-Anlage wirklich?<\/h2>\n\n\n\n<p>Kurz gesagt: Der <strong>Wirkungsgrad ist wichtig \u2013 aber nicht entscheidend allein.<\/strong><\/p>\n\n\n\n<p>Viel wichtiger f\u00fcr die Wirtschaftlichkeit sind:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Share of own consumption<\/li>\n\n\n\n<li>Strompreisniveau<\/li>\n\n\n\n<li>Anlagengr\u00f6\u00dfe<\/li>\n\n\n\n<li>Load profile<\/li>\n\n\n\n<li>Integration in das Energiesystem (z. B. <a href=\"https:\/\/cubeconcepts.de\/en\/products\/large-battery-storage\/\" type=\"page\" id=\"19360\">Large-scale battery storage<\/a>)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Fl\u00e4cheneffizienz: Wie viel Leistung passt auf das Dach?<\/h2>\n\n\n\n<p>Typische Richtwerte:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>monokristallin: ca. <strong>5\u20136 m\u00b2 pro kWp<\/strong><\/li>\n\n\n\n<li>polykristallin: ca. <strong>6\u20137 m\u00b2 pro kWp<\/strong><\/li>\n\n\n\n<li>D\u00fcnnschicht: >15 m\u00b2 pro kWp<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Moderne Module steigern die Fl\u00e4cheneffizienz und haben heute 420\u2013600 W pro Modul.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lohnt sich Repowering durch bessere Wirkungsgrade?<\/h2>\n\n\n\n<p>A <a href=\"https:\/\/cubeconcepts.de\/en\/repowering-of-pv-systems\/\" type=\"post\" id=\"18501\">Repowering<\/a> von PV-Anlagen lohnt sich teilweise \u2013 aber nicht automatisch. Es kann sinnvoll sein, wenn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>die Anlage \u00e4lter als 10\u201315 Jahre ist<\/li>\n\n\n\n<li>die Performance Ratio unter ~75\u201380 % liegt<\/li>\n\n\n\n<li>Dachsanierungen anstehen<\/li>\n\n\n\n<li>neue Module deutlich mehr Leistung pro Fl\u00e4che liefern<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p>Nicht sinnvoll ist es oft, wenn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>die Anlage noch gut funktioniert<\/li>\n\n\n\n<li>Einspeiseverg\u00fctung hoch ist (Altanlagen)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Der Wirkungsgrad von Solarzellen hat sich in den letzten Jahrzehnten deutlich verbessert. F\u00fcr die Wirtschaftlichkeit einer Photovoltaikanlage ist jedoch nicht allein der Zellwirkungsgrad entscheidend, sondern das Zusammenspiel aus Systemeffizienz, Standort, Nutzung und Integration in das Energiesystem.<\/p>\n\n\n\n<p>Unternehmen sollten daher nicht nur auf den Wirkungsgrad achten, sondern die gesamte Anlage und deren Nutzung strategisch optimieren.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/cubeconcepts.de\/en\/category\/photovoltaics-topics\/\">Back to overview<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\t\t<div data-elementor-type=\"section\" data-elementor-id=\"15300\" class=\"elementor elementor-15300\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-7720627 e-flex e-con-boxed e-con e-parent\" data-id=\"7720627\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-e2d7cf1 e-con-full e-flex e-con e-child\" data-id=\"e2d7cf1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-7f42313 e-con-full e-flex e-con e-child\" data-id=\"7f42313\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-42660e6 elementor-widget elementor-widget-heading\" data-id=\"42660e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Energy Newsletter<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b495a97 elementor-widget elementor-widget-spacer\" data-id=\"b495a97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-916e623 elementor-widget elementor-widget-text-editor\" data-id=\"916e623\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Always stay up-to-date!<\/p><p><strong>Your advantages:<\/strong><\/p><p>\u2713 Latest news on renewable energies<\/p><p>\u2713 Updates on energy law &amp; 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Entscheidend f\u00fcr den tats\u00e4chlichen Ertrag einer Photovoltaikanlage ist jedoch nicht nur die Zelle selbst, sondern die sogenannte Performance Ratio (PR). Diese liegt bei modernen Anlagen typischerweise zwischen 80 und 90 % und beschreibt, wie viel der theoretisch m\u00f6glichen [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":5895,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[50,25],"tags":[],"class_list":["post-5894","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photovoltaik-themen-in-deutschland-wissenswertes-fuer-energieprojekte","category-photovoltaik-themen"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wirkungsgrad von Solarzellen | CUBE CONCEPTS<\/title>\n<meta name=\"description\" content=\"Wie hoch in der Wirkungsgrad von Solarzellen, welche Solarzellen-Typen gibt es und lohnt sich Repowering?\" \/>\n<meta name=\"robots\" content=\"index, follow, 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