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De cel zelf en het uitzicht van het paneel veranderen niet, u ziet aan de buitenkant geen verschil.",{"type":504,"value":507},{"type":495,"tag":500,"attrs":544,"children":545},{},[546],{"type":504,"value":547},"Snijdt u een gewoon paneel van vroeger doormidden, dan onderscheidt u deze lagen:",{"type":504,"value":507},{"type":495,"tag":550,"attrs":551,"children":552},"ol",{},[553,555,561,562,567,568,573,574,586],{"type":504,"value":554},"\n\t",{"type":495,"tag":556,"attrs":557,"children":558},"li",{},[559],{"type":504,"value":560},"Busbars",{"type":504,"value":554},{"type":495,"tag":556,"attrs":563,"children":564},{},[565],{"type":504,"value":566},"Glaslaag",{"type":504,"value":554},{"type":495,"tag":556,"attrs":569,"children":570},{},[571],{"type":504,"value":572},"Silicium\u002Fzonnecel",{"type":504,"value":554},{"type":495,"tag":556,"attrs":575,"children":576},{},[577,579,584],{"type":504,"value":578},"Folie (of glas bij een ",{"type":495,"tag":514,"attrs":580,"children":581},{"to":102},[582],{"type":504,"value":583},"glas-glas zonnepaneel",{"type":504,"value":585},")",{"type":504,"value":587},"\n",{"type":504,"value":507},{"type":495,"tag":500,"attrs":590,"children":591},{},[592],{"type":504,"value":593},"Bij een PERC-cel komen daar twee lagen bij:",{"type":504,"value":507},{"type":495,"tag":550,"attrs":596,"children":597},{},[598,599,603,604,608,609,614,615,620,621,644,645,650],{"type":504,"value":554},{"type":495,"tag":556,"attrs":600,"children":601},{},[602],{"type":504,"value":560},{"type":504,"value":554},{"type":495,"tag":556,"attrs":605,"children":606},{},[607],{"type":504,"value":566},{"type":504,"value":554},{"type":495,"tag":556,"attrs":610,"children":611},{},[612],{"type":504,"value":613},"Passivated Emitter-laag (PE)",{"type":504,"value":554},{"type":495,"tag":556,"attrs":616,"children":617},{},[618],{"type":504,"value":619},"Silicium wafel\u002Fcel",{"type":504,"value":554},{"type":495,"tag":556,"attrs":622,"children":623},{},[624,626,643],{"type":504,"value":625},"Gepassiveerde achterzijde (RC), bestaande uit 2 lagen\n\t",{"type":495,"tag":550,"attrs":627,"children":628},{},[629,631,636,637,642],{"type":504,"value":630},"\n\t\t",{"type":495,"tag":556,"attrs":632,"children":633},{},[634],{"type":504,"value":635},"Aluminiumoxide",{"type":504,"value":630},{"type":495,"tag":556,"attrs":638,"children":639},{},[640],{"type":504,"value":641},"Siliciumnitride",{"type":504,"value":554},{"type":504,"value":554},{"type":504,"value":554},{"type":495,"tag":556,"attrs":646,"children":647},{},[648],{"type":504,"value":649},"Folie (of glas bij een glas-glas zonnepaneel)",{"type":504,"value":587},{"type":504,"value":507},{"type":495,"tag":500,"attrs":653,"children":654},{},[655,657,662],{"type":504,"value":656},"Die achterste RC-laag kaatst zonlicht dat anders in de folie verloren ging terug naar de cel, en de gepassiveerde lagen beperken het verlies van elektronen aan de achterkant. Netto leverde dat een paar tienden tot ongeveer een procent extra ",{"type":495,"tag":514,"attrs":658,"children":659},{"to":98},[660],{"type":504,"value":661},"rendement",{"type":504,"value":663}," op ten opzichte van de oudere celbouw. Over de levensduur van een installatie zijn dat honderden extra kWh, dus als upgrade was PERC destijds allesbehalve onbelangrijk.",{"type":504,"value":507},{"type":495,"tag":529,"attrs":666,"children":669},{"data-toc":667,"id":668},"Waarom het de norm werd","standaard",[670],{"type":504,"value":671},"Waarom PERC de standaard werd",{"type":504,"value":507},{"type":495,"tag":500,"attrs":674,"children":675},{},[676],{"type":504,"value":677},"De reden was eenvoudig: PERC was goedkoop. Het bouwde voort op de bestaande p-type siliciumcellen die de sector al decennia maakte, dus fabrikanten konden bestaande productielijnen relatief goedkoop ombouwen voor een meetbare rendementswinst. Tussen grofweg 2017 en 2023 was PERC daardoor veruit het meest gebruikte celtype ter wereld, en de monokristallijne PERC-cel werd zowat synoniem met het moderne zwarte zonnepaneel.",{"type":504,"value":507},{"type":495,"tag":500,"attrs":680,"children":681},{},[682],{"type":504,"value":683},"Precies omdat het overal zat, werd PERC ook een marketingwoord. Merken zetten het groot op hun datasheets terwijl het intussen de norm was, niet de uitzondering. Datasheet, data.. wat? Voor de gemiddelde koper zei het label weinig, want vrijwel iedereen zat op dezelfde technologie.",{"type":504,"value":507},{"type":495,"tag":529,"attrs":686,"children":689},{"data-toc":687,"id":688},"Waarom TOPCon won","topcon",[690],{"type":504,"value":691},"Waarom n-type TOPCon PERC verving",{"type":504,"value":507},{"type":495,"tag":500,"attrs":694,"children":695},{},[696],{"type":504,"value":697},"PERC stootte op een fysieke grens. Een p-type cel haalt in de praktijk moeilijk veel meer dan ongeveer 22 tot 23 procent, en het p-type silicium heeft twee ingebakken zwakheden: het degradeert wat sneller en het presteert wat slechter naarmate het paneel opwarmt. n-type silicium heeft die problemen niet, en TOPCon (Tunnel Oxide Passivated Contact) is de n-type technologie die de industrie massaal koos als opvolger. Rond 2023 en 2024 kantelde de markt, en vandaag is n-type TOPCon het standaardpaneel.",{"type":504,"value":507},{"type":495,"tag":500,"attrs":700,"children":701},{},[702],{"type":504,"value":703},"Op vrijwel elk vlak dat telt voor een dakinstallatie doet TOPCon het beter:",{"type":504,"value":507},{"type":495,"tag":706,"attrs":707,"children":708},"table",{"class":706},[709,710,741,742,931],{"type":504,"value":554},{"type":495,"tag":711,"attrs":712,"children":713},"thead",{},[714,715,740],{"type":504,"value":630},{"type":495,"tag":716,"attrs":717,"children":718},"tr",{},[719,721,727,728,733,734,739],{"type":504,"value":720},"\n\t\t\t",{"type":495,"tag":722,"attrs":723,"children":724},"th",{},[725],{"type":504,"value":726},"Kenmerk",{"type":504,"value":720},{"type":495,"tag":722,"attrs":729,"children":730},{},[731],{"type":504,"value":732},"PERC (p-type)",{"type":504,"value":720},{"type":495,"tag":722,"attrs":735,"children":736},{},[737],{"type":504,"value":738},"n-type TOPCon",{"type":504,"value":630},{"type":504,"value":554},{"type":504,"value":554},{"type":495,"tag":743,"attrs":744,"children":745},"tbody",{},[746,747,774,775,800,801,826,827,852,853,878,879,904,905,930],{"type":504,"value":630},{"type":495,"tag":716,"attrs":748,"children":749},{},[750,751,757,758,763,764,773],{"type":504,"value":720},{"type":495,"tag":752,"attrs":753,"children":754},"td",{},[755],{"type":504,"value":756},"Modulerendement (residentieel)",{"type":504,"value":720},{"type":495,"tag":752,"attrs":759,"children":760},{},[761],{"type":504,"value":762},"~20 tot 22%",{"type":504,"value":720},{"type":495,"tag":752,"attrs":765,"children":766},{},[767],{"type":495,"tag":768,"attrs":769,"children":770},"strong",{},[771],{"type":504,"value":772},"~22 tot 24,5%",{"type":504,"value":630},{"type":504,"value":630},{"type":495,"tag":716,"attrs":776,"children":777},{},[778,779,784,785,790,791,799],{"type":504,"value":720},{"type":495,"tag":752,"attrs":780,"children":781},{},[782],{"type":504,"value":783},"Temperatuurcoëfficiënt (Pmax)",{"type":504,"value":720},{"type":495,"tag":752,"attrs":786,"children":787},{},[788],{"type":504,"value":789},"~ -0,34%\u002F°C",{"type":504,"value":720},{"type":495,"tag":752,"attrs":792,"children":793},{},[794],{"type":495,"tag":768,"attrs":795,"children":796},{},[797],{"type":504,"value":798},"~ -0,29%\u002F°C",{"type":504,"value":630},{"type":504,"value":630},{"type":495,"tag":716,"attrs":802,"children":803},{},[804,805,810,811,816,817,825],{"type":504,"value":720},{"type":495,"tag":752,"attrs":806,"children":807},{},[808],{"type":504,"value":809},"Degradatie in jaar 1",{"type":504,"value":720},{"type":495,"tag":752,"attrs":812,"children":813},{},[814],{"type":504,"value":815},"~1 tot 2%",{"type":504,"value":720},{"type":495,"tag":752,"attrs":818,"children":819},{},[820],{"type":495,"tag":768,"attrs":821,"children":822},{},[823],{"type":504,"value":824},"~1%",{"type":504,"value":630},{"type":504,"value":630},{"type":495,"tag":716,"attrs":828,"children":829},{},[830,831,836,837,842,843,851],{"type":504,"value":720},{"type":495,"tag":752,"attrs":832,"children":833},{},[834],{"type":504,"value":835},"Jaarlijkse degradatie nadien",{"type":504,"value":720},{"type":495,"tag":752,"attrs":838,"children":839},{},[840],{"type":504,"value":841},"~0,55%\u002Fjaar",{"type":504,"value":720},{"type":495,"tag":752,"attrs":844,"children":845},{},[846],{"type":495,"tag":768,"attrs":847,"children":848},{},[849],{"type":504,"value":850},"~0,4%\u002Fjaar",{"type":504,"value":630},{"type":504,"value":630},{"type":495,"tag":716,"attrs":854,"children":855},{},[856,857,862,863,868,869,877],{"type":504,"value":720},{"type":495,"tag":752,"attrs":858,"children":859},{},[860],{"type":504,"value":861},"Vermogensgarantie (typisch)",{"type":504,"value":720},{"type":495,"tag":752,"attrs":864,"children":865},{},[866],{"type":504,"value":867},"25 jaar, ~84 tot 86%",{"type":504,"value":720},{"type":495,"tag":752,"attrs":870,"children":871},{},[872],{"type":495,"tag":768,"attrs":873,"children":874},{},[875],{"type":504,"value":876},"30 jaar, ~87 tot 89%",{"type":504,"value":630},{"type":504,"value":630},{"type":495,"tag":716,"attrs":880,"children":881},{},[882,883,888,889,894,895,903],{"type":504,"value":720},{"type":495,"tag":752,"attrs":884,"children":885},{},[886],{"type":504,"value":887},"Bifacialiteit (achterzijde)",{"type":504,"value":720},{"type":495,"tag":752,"attrs":890,"children":891},{},[892],{"type":504,"value":893},"~70%",{"type":504,"value":720},{"type":495,"tag":752,"attrs":896,"children":897},{},[898],{"type":495,"tag":768,"attrs":899,"children":900},{},[901],{"type":504,"value":902},"~80 tot 85%",{"type":504,"value":630},{"type":504,"value":630},{"type":495,"tag":716,"attrs":906,"children":907},{},[908,909,914,915,920,921,929],{"type":504,"value":720},{"type":495,"tag":752,"attrs":910,"children":911},{},[912],{"type":504,"value":913},"Gevoelig voor LID\u002FPID",{"type":504,"value":720},{"type":495,"tag":752,"attrs":916,"children":917},{},[918],{"type":504,"value":919},"ja",{"type":504,"value":720},{"type":495,"tag":752,"attrs":922,"children":923},{},[924],{"type":495,"tag":768,"attrs":925,"children":926},{},[927],{"type":504,"value":928},"nauwelijks",{"type":504,"value":630},{"type":504,"value":554},{"type":504,"value":587},{"type":504,"value":507},{"type":495,"tag":500,"attrs":934,"children":935},{},[936,938,943],{"type":504,"value":937},"Twee punten uit die tabel wegen zwaar in ons klimaat. De betere temperatuurcoëfficiënt betekent dat een TOPCon-paneel op een warme, zonnige dag minder rendement verliest, en zonnepanelen presteren nu eenmaal ",{"type":495,"tag":514,"attrs":939,"children":940},{"to":70},[941],{"type":504,"value":942},"minder goed bij hoge temperaturen",{"type":504,"value":944},". De tragere degradatie betekent dat het paneel na twintig jaar nog een groter deel van zijn oorspronkelijke vermogen levert. Fabrikanten durven voor n-type daarom doorgaans een vermogensgarantie van 30 jaar te geven, tegenover 25 jaar bij PERC.",{"type":504,"value":507},{"type":495,"tag":947,"attrs":948,"children":950},"good-to-know",{"icon":949},"zoom",[951,952,960,961,968],{"type":504,"value":587},{"type":495,"tag":953,"attrs":954,"children":957},"h3",{"class":955,"slot":956},"mt-1","header",[958],{"type":504,"value":959},"De oude nadelen van PERC zijn precies wat TOPCon oploste",{"type":504,"value":587},{"type":495,"tag":500,"attrs":962,"children":965},{"class":963,"slot":964},"mb-0","content",[966],{"type":504,"value":967},"Deze pagina waarschuwde vroeger voor snellere degradatie en voor spanningsgeïnduceerde degradatie (PID) bij PERC-panelen. Dat waren terechte bezwaren, en het zijn net die zwakheden die n-type silicium grotendeels wegneemt. De markt loste het probleem dus niet op binnen PERC, maar door PERC te vervangen.",{"type":504,"value":587},{"type":504,"value":507},{"type":495,"tag":500,"attrs":971,"children":972},{},[973,975,979,981,986],{"type":504,"value":974},"Vandaag draait zowat het volledige aanbod van de grote merken op n-type. Jinko (Tiger Neo), Trina (Vertex S+), JA Solar, DMEGC, Canadian Solar en Qcells zetten allemaal in op TOPCon, terwijl ",{"type":495,"tag":514,"attrs":976,"children":977},{"to":333},[978],{"type":504,"value":332},{"type":504,"value":980}," en LONGi met back-contactcellen nog een stap verder gaan in de premiumklasse. De ",{"type":495,"tag":514,"attrs":982,"children":983},{"to":88},[984],{"type":504,"value":985},"monokristallijne",{"type":504,"value":987}," zwarte look is gebleven, de cel eronder is intussen een andere.",{"type":504,"value":507},{"type":495,"tag":990,"attrs":991,"children":993},"compare-quote",{"horizontal":992},"",[],{"type":504,"value":507},{"type":495,"tag":529,"attrs":996,"children":998},{"data-toc":997,"id":518},"PERC in uw offerte",[999],{"type":504,"value":1000},"Wat als uw offerte nog PERC vermeldt?",{"type":504,"value":507},{"type":495,"tag":500,"attrs":1003,"children":1004},{},[1005],{"type":504,"value":1006},"Staat er vandaag nog een PERC-paneel op uw offerte, dan is dat geen ramp, maar wel een reden om even door te vragen. PERC-panelen zijn niet defect: ze wekken jarenlang betrouwbaar stroom op en hun rendement is nog altijd behoorlijk. Het gaat om een uitlopende generatie, geen slecht product.",{"type":504,"value":507},{"type":495,"tag":500,"attrs":1009,"children":1010},{},[1011],{"type":504,"value":1012},"Toch spelen er twee dingen. Ten eerste is de kans reëel dat het om oudere voorraad gaat, want nieuwe productie is vrijwel volledig n-type. Ten tweede plaatst u zonnepanelen voor 25 tot 30 jaar, en voor die termijn wilt u liefst de technologie met de tragere degradatie en de langere garantie. Het verschil in aankoopprijs tussen PERC en TOPCon is intussen klein tot onbestaand.",{"type":504,"value":507},{"type":495,"tag":500,"attrs":1015,"children":1016},{},[1017,1019,1024],{"type":504,"value":1018},"Onze eerlijke inschatting: kies bij een nieuwe installatie voor n-type TOPCon. Een PERC-aanbod is enkel te overwegen als het fors goedkoper is en de installateur transparant is over wat u koopt. Ligt de prijs even hoog als bij een TOPCon-paneel, dan betaalt u de nieuwe prijs voor de oude generatie. Laat in dat geval gerust een ",{"type":495,"tag":514,"attrs":1020,"children":1021},{"to":51},[1022],{"type":504,"value":1023},"tweede offerte",{"type":504,"value":1025}," maken en vergelijk welk paneelmerk en celtype er precies wordt voorgesteld.",{"type":504,"value":507},{"type":495,"tag":523,"attrs":1028,"children":1029},{"mode":525},[],{"type":504,"value":507},{"type":495,"tag":529,"attrs":1032,"children":1035},{"data-toc":1033,"id":1034},"FAQ","faq",[1036],{"type":504,"value":1037},"Veelgestelde vragen over PERC",{"type":504,"value":507},{"type":495,"tag":953,"attrs":1040,"children":1041},{},[1042],{"type":504,"value":1043},"Zijn PERC-zonnepanelen slecht?",{"type":504,"value":587},{"type":495,"tag":500,"attrs":1046,"children":1047},{},[1048],{"type":504,"value":1049},"Nee, PERC-panelen zijn niet slecht: ze wekken decennialang betrouwbaar stroom op. Ze zijn wel de uitgaande generatie, want n-type TOPCon presteert beter op rendement, degradatie en temperatuurgedrag, en kost intussen ongeveer evenveel.",{"type":504,"value":507},{"type":495,"tag":953,"attrs":1052,"children":1053},{},[1054],{"type":504,"value":1055},"Wat is het verschil tussen PERC en TOPCon?",{"type":504,"value":587},{"type":495,"tag":500,"attrs":1058,"children":1059},{},[1060],{"type":504,"value":1061},"PERC gebruikt een p-type siliciumcel, TOPCon een n-type cel met een dun tunneloxide op de achterzijde. In de praktijk haalt TOPCon een hoger rendement, degradeert het trager, verliest het minder vermogen bij warmte en krijgt het doorgaans een vermogensgarantie van 30 in plaats van 25 jaar.",{"type":504,"value":507},{"type":495,"tag":953,"attrs":1064,"children":1065},{},[1066],{"type":504,"value":1067},"Kan ik vandaag nog PERC-panelen kopen?",{"type":504,"value":587},{"type":495,"tag":500,"attrs":1070,"children":1071},{},[1072],{"type":504,"value":1073},"Nieuwe PERC-panelen zijn nog te vinden, meestal als uitlopende voorraad, maar het gros van het aanbod is intussen n-type. Voor een installatie die 25 tot 30 jaar moet meegaan, kiest u beter voor een actueel TOPCon- of back-contactpaneel.",{"type":504,"value":507},{"type":495,"tag":953,"attrs":1076,"children":1077},{},[1078],{"type":504,"value":1079},"Herken ik aan het uitzicht of een paneel PERC of TOPCon is?",{"type":504,"value":587},{"type":495,"tag":500,"attrs":1082,"children":1083},{},[1084],{"type":504,"value":1085},"Nee, aan de buitenkant ziet u het verschil niet: beide zijn zwarte monokristallijne panelen. Het celtype staat op de datasheet van het paneel, dus vraag die op bij twijfel en kijk of er n-type of TOPCon vermeld staat.",[],[],{"div":466,"p":1089,"nuxt-link":480,"solar-panel-calculator":1090,"h2":1091,"ol":1092,"li":1093,"table":466,"thead":466,"tr":1094,"th":1092,"tbody":466,"td":1095,"strong":480,"good-to-know":466,"h3":1091,"compare-quote":466},20,2,5,3,12,8,21,true,[1098,1107,1116,1126],{"id":1099,"name":101,"slug":1100,"uri":102,"shortDescription":1101,"readingTime":1094,"image":1102},86,"glas-glas-zonnepanelen","Glas-glas zonnepanelen hebben aan de achterzijde een glasplaat in plaats van folie. Wat ooit een premium-optie was, is in 2026 de standaard op de meeste TOPCon-panelen, met prestatiegaranties tot 30 jaar.",{"x1":1103,"x2":1104,"webpX1":1105,"webpX2":1106},"https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F86.jpg","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F86@2x.jpg","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F86.webp","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F86@2x.webp",{"id":1108,"name":86,"slug":1109,"uri":88,"shortDescription":1110,"readingTime":1094,"image":1111},73,"monokristallijne-zonnepanelen","Monokristallijne (zwarte) zonnepanelen zijn vandaag de norm: goed voor ruim negen op de tien installaties. We leggen uit hoe ze werken en welke celtechnologie, TOPCon, back-contact of HJT, bij uw dak past.",{"x1":1112,"x2":1113,"webpX1":1114,"webpX2":1115},"https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F73.jpg","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F73@2x.jpg","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F73.webp","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F73@2x.webp",{"id":1117,"name":293,"slug":1118,"uri":51,"shortDescription":1119,"readingTime":1120,"image":1121},56,"merken","Bij het kiezen van zonnepanelen loont het om merken te vergelijken op rendement, garantie en de financiële gezondheid van de fabrikant. Wij zetten de criteria en onze rangschikking op een rij.",13,{"x1":1122,"x2":1123,"webpX1":1124,"webpX2":1125},"https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F56.jpg","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F56@2x.jpg","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F56.webp","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F56@2x.webp",{"id":1127,"name":23,"slug":1128,"uri":24,"shortDescription":1129,"readingTime":1093,"image":1130},24,"prijzen","Zonnepanelen kosten midden 2026 €0,85 tot €1,25 per wattpiek all-in. Een installatie van 4,5 kWp kost €3.800 tot €5.000 inclusief 6% btw. We tonen de richtprijzen per systeemgrootte en daktype.",{"x1":1131,"x2":1132,"webpX1":1133,"webpX2":1134},"https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F24.png","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F24@2x.png","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F24.webp","https:\u002F\u002Fapi.zonnepanelenenergie.be\u002Ffiles\u002Fpages_featured\u002F24@2x.webp"]