{"id":13305,"date":"2025-05-16T17:54:49","date_gmt":"2025-05-16T15:54:49","guid":{"rendered":"https:\/\/www.mrpenergy.it\/2025\/05\/16\/falling-prices-and-hidden-risks-why-pv-module-testing-is-now-more-important-than-ever\/"},"modified":"2025-09-05T09:08:40","modified_gmt":"2025-09-05T07:08:40","slug":"falling-prices-and-hidden-risks-why-pv-module-testing-is-now-more-important-than-ever","status":"publish","type":"post","link":"https:\/\/www.mrpenergy.it\/en\/2025\/05\/16\/falling-prices-and-hidden-risks-why-pv-module-testing-is-now-more-important-than-ever\/","title":{"rendered":"Falling prices and hidden risks: why PV module testing is now more important than ever"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13305\" class=\"elementor elementor-13305 elementor-13272\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a829169 e-flex e-con-boxed e-con e-parent\" data-id=\"3a829169\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-792895d6 elementor-widget elementor-widget-text-editor\" data-id=\"792895d6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.19.0 - 26-02-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<h2 class=\"\" data-start=\"322\" data-end=\"371\">A market gone crazy: prices at record lows<\/h2>\n<p class=\"\" data-start=\"373\" data-end=\"589\">In the <strong data-start=\"377\" data-end=\"409\">current PV market<\/strong>, we are witnessing an unprecedented phenomenon: <strong data-start=\"456\" data-end=\"490\">PV module prices<\/strong> collapsed out of control, driven only by a <strong data-start=\"567\" data-end=\"588\">huge oversupply<\/strong> situation. How to protect yourself? Through PV module testing. <\/p>\n<p class=\"\" data-start=\"591\" data-end=\"763\">So we find ourselves in the midst of a <strong data-start=\"617\" data-end=\"635\">\u201cbuyer&#8217;s market,\u201d<\/strong> where producers sell off modules at prices so low that they are, in some cases, <strong data-start=\"727\" data-end=\"762\">comparable to those of milk<\/strong>.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-14a96c3 e-flex e-con-boxed e-con e-parent\" data-id=\"14a96c3\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2144627 elementor-widget elementor-widget-image\" data-id=\"2144627\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.19.0 - 26-02-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/modules-cheaper-than-milk-1024x537.jpg\" class=\"attachment-large size-large wp-image-13276\" alt=\"modules cheaper than milk verifica moduli fotovoltaici\" srcset=\"https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/modules-cheaper-than-milk-1024x537.jpg 1024w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/modules-cheaper-than-milk-300x157.jpg 300w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/modules-cheaper-than-milk-768x403.jpg 768w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/modules-cheaper-than-milk-1536x806.jpg 1536w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/modules-cheaper-than-milk.jpg 1775w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ebcd694 e-flex e-con-boxed e-con e-parent\" data-id=\"ebcd694\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a3b909 elementor-widget elementor-widget-text-editor\" data-id=\"4a3b909\" data-element_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<h2 class=\"\" data-start=\"765\" data-end=\"799\">Beware of nasty surprises<\/h2>\n<p class=\"\" data-start=\"801\" data-end=\"1141\">While the low prices may seem like a once-in-a-lifetime opportunity, <strong data-start=\"890\" data-end=\"960\">the risk of buying defective or non-compliant modules is high, as <a href=\"https:\/\/www.pv-magazine.de\/2025\/03\/12\/fraunhofer-ise-durchschnittliche-minderleistung-bei-solarmodulen-in-bezug-auf-herstellerangaben-2024-bei-12-prozent\/\">recent Fraunhofer ISE papers<\/a> also confirm<\/strong>.<br data-start=\"961\" data-end=\"964\">To ensure the return on investment and protect the profitability of the system, it is essential to <strong data-start=\"1063\" data-end=\"1140\">rely on experienced professionals to audit PV modules<\/strong>.<\/p>\n<h3 class=\"\" data-start=\"1143\" data-end=\"1173\">Why EL alone is not enough<\/h3>\n<p class=\"\" data-start=\"1175\" data-end=\"1539\">One of the most common mistakes is to believe that <strong data-start=\"1226\" data-end=\"1254\"><a href=\"https:\/\/www.mrpenergy.it\/2016\/11\/14\/validita-scientifica-analisi-elettroluminescenza-outdoor\/\">electroluminescence<\/a> (EL)<\/strong> alone is enough to prove the quality of a module.<br data-start=\"1299\" data-end=\"1302\">The reality is that <strong data-start=\"1313\" data-end=\"1352\">testing PV modules<\/strong> requires more in-depth analysis, including <a href=\"https:\/\/www.mrpenergy.it\/en\/2024\/10\/24\/comparison-iv-tracer-and-mobilelab-modules-topcon-hjt-ibc-perc\/\">precision IV analysis<\/a> and visual inspections, to determine whether the <strong data-start=\"1474\" data-end=\"1507\">performance declared<\/strong> (Pmax) is actually met.<\/p>\n<h2 class=\"\" data-start=\"1541\" data-end=\"1578\">A real example of non-compliance<\/h2>\n<p class=\"\" data-start=\"1580\" data-end=\"1711\">In our inspection activities with the new <a href=\"https:\/\/www.mrpenergy.it\/2024\/05\/06\/mrp-intersolar-2024\/\">mobileLAB<\/a>, we are <strong data-start=\"1630\" data-end=\"1699\">increasingly finding severe problems even before the modules are installed<\/strong>.<\/p>\n<p class=\"\" data-start=\"1713\" data-end=\"2014\">Here is a real-world example: during a recent <em>incoming inspection<\/em> test activity, we found a significant discrepancy between the claimed and actual power. The EL images show a marked and progressive mismatch as underperformance increases on several different modules. This kind of inconsistency can have a <strong data-start=\"1945\" data-end=\"2013\">significant impact on the plant performance<\/strong> estimates.  <\/p>\n<p data-start=\"1713\" data-end=\"2014\">Designs and investments, of course, are based on a fundamental value (module nominal power) that, is almost never verified with precision measurements.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7b9bb5b e-flex e-con-boxed e-con e-parent\" data-id=\"7b9bb5b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f58edb5 elementor-widget elementor-widget-image\" data-id=\"f58edb5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"746\" src=\"https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/underperforming-new-modules-1024x746.jpg\" class=\"attachment-large size-large wp-image-13274\" alt=\"underperforming new modules verifica moduli fotovoltaici\" srcset=\"https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/underperforming-new-modules-1024x746.jpg 1024w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/underperforming-new-modules-300x219.jpg 300w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/underperforming-new-modules-768x560.jpg 768w, https:\/\/www.mrpenergy.it\/wp-content\/uploads\/2025\/05\/underperforming-new-modules.jpg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e06eaa elementor-widget elementor-widget-text-editor\" data-id=\"9e06eaa\" data-element_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<h2 data-start=\"765\" data-end=\"799\"><span style=\"letter-spacing: -0.02em;\">MRP services: complete control, before-during-after<\/span><\/h2>\n<p data-start=\"2074\" data-end=\"2164\">In MRP, we offer a <strong data-start=\"2093\" data-end=\"2150\">comprehensive PV module verification service<\/strong>, including:<\/p>\n<ul>\n<li>Visual inspections according to MRP or manufacturer&#8217;s criteria<\/li>\n<li>IV curve testing on field or with mobileLAB<\/li>\n<li>High-resolution electroluminescence<\/li>\n<li>Analysis of compliance to technical specifications<\/li>\n<\/ul>\n<h3 data-start=\"2347\" data-end=\"2375\">PV module testing: WHEN?<\/h3>\n<ul>\n<li data-start=\"2379\" data-end=\"2450\"><strong data-start=\"2379\" data-end=\"2407\">Before installation<\/strong>, to avoid installing non-compliant modules.<\/li>\n<li data-start=\"2453\" data-end=\"2514\"><strong data-start=\"2453\" data-end=\"2477\">During installation<\/strong>, to correct handling and mounting mistakes and procedures<\/li>\n<li data-start=\"2517\" data-end=\"2600\"><strong data-start=\"2517\" data-end=\"2541\">After installation<\/strong>, to carry out any claims or <em>performance issues<\/em>, as well as do a point-zero of the system<\/li>\n<\/ul>\n<h2 data-start=\"2602\" data-end=\"2645\">In conclusion: less risk, more return<\/h2>\n<p data-start=\"2647\" data-end=\"2767\">In a market driven down by prices, <a href=\"https:\/\/www.mrpenergy.it\/en\/check-up\/\"><strong data-start=\"2698\" data-end=\"2734\">PV module testing<\/strong><\/a> is the most effective tool for:<\/p>\n<p data-start=\"2769\" data-end=\"2914\">\u2705 <strong data-start=\"2771\" data-end=\"2812\">Reduce technical and economic risks<\/strong><br data-start=\"2812\" data-end=\"2815\">\u2705 <strong data-start=\"2817\" data-end=\"2851\">Protect your investment<\/strong><br data-start=\"2851\" data-end=\"2854\">\u2705 <strong data-start=\"2856\" data-end=\"2914\">Ensure real plant performance over time<\/strong><\/p>\n<p data-start=\"2769\" data-end=\"2914\"><strong data-start=\"2856\" data-end=\"2914\"> <\/strong><\/p>\n<p style=\"background-color: #ffffff;\"><em>Article by Giovanni Guiotto and Mark Rossetto \u2013 MRP Srl<\/em><\/p>\n<p data-start=\"2769\" data-end=\"2914\">\n<p style=\"background-color: #ffffff;\">May 2025<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ba8dce7 e-flex e-con-boxed e-con e-parent\" data-id=\"ba8dce7\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In a PV market dominated by oversupply and plummeting prices, buying modules may seem like a bargain, but the risks of noncompliance are high. Electroluminescence alone is not enough to guarantee quality: it is essential to perform a comprehensive verification of PV modules before, during, and after installation. MRP offers a structured service to protect your investment and ensure compliance with expected performance (Pmax).  <\/p>\n","protected":false},"author":2,"featured_media":13275,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[167],"tags":[168,174,148,173,170,172,175],"class_list":["post-13305","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-focus-en-2","tag-check-up-en-2","tag-efficiency","tag-el-2","tag-electroluminescence-en","tag-mobilelab-en","tag-photovoltaic-en","tag-testing-en-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PV module verification: avoiding risks and ensuring performance<\/title>\n<meta name=\"description\" content=\"Buying cheap PV modules: why it&#039;s essential to check them before installation to avoid bad surprises.\" \/>\n<meta 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